In the Katmai district of the Alaska Peninsula, K–Ar and 40Ar/39Ar ages have been determined for a dozen andesite–dacite stratocones on the arc front and for 11 rear-arc volcanoes, 10 of which are monogenetic. Tied to mapping and stratigraphic studies, our dating emphasized proximal basal lavas that rest on basement rocks, in order to estimate ages of inception of each polygenetic cone. Oldest among arc-front cones is Alagogshak Volcano (690–43 ka), succeeded in the Holocene by the active Mount Martin cone. Mount Mageik consists of four overlapping subedifices, basal lavas of which give ages of 93, 71, and 59 ka, and Holocene. The three small prehistoric cones of Trident Volcano yield ages of 143, 101–58, and 44 ka. Falling Mountain and Mount Cerberus, dacite domes near the 1912 Novarupta vent, are related compositionally to the Trident group and give ages of 70 ka and 114 ka. Mount Katmai, which underwent caldera collapse in 1912, consists of two subedifices that overlapped in space and time, and is the only arc-front center here to include basalt and rhyolite; one cone began by 90 ka, the other by 47 ka. Snowy Mountain also consists of two contiguous cones, which started around 200 and 171 ka, respectively, the younger remaining active into the Holocene. Devils Desk, the only mafic cone on the arc front, was short-lived at about 245 ka. In the rear-arc, (1) Mount Griggs produced mafic-to-silicic andesite in several episodes between 292 ka and the Holocene; (2) the Savonoski River cluster includes a Pliocene dacite dome and five small mafic cones (390–88 ka); (3) Gertrude Creek cone (49.8% SiO2) yields an age of 500 ka; and (4) the Saddlehorn Creek cluster includes five Pliocene basalt-to-andesite remnants. Eruptive volumes were reconstructed, permitting estimates of average eruption rates for edifice lifetimes. Since the mid Pleistocene, total volume erupted along the arc front here is 210±47 km3 and in the rear-arc 39±6 km3, of which Mount Griggs alone accounts for 35±5 km3. Most productive has been Mount Katmai at 70±18 km3, yielding a rate of ∼1 km3/kyr, followed by Mount Mageik (0.33 km3/kyr) and Mount Griggs (0.3 km3/kyr since 50 ka).
\n\n
Twenty free-ranging spectacled eiders (Somateria fischeri; 10 male, 10 female), 11 free-ranging king eiders (Somateria spectabilis; 6 male, 5 female), and 20 female common eiders (Somateria mollissima) were anesthetized with propofol, bupivacaine, and ketoprofen for the surgical implantation of satellite transmitters. Propofol was given to induce and maintain anesthesia (mean total dose, 26.2-45.6 mg/kg IV), bupivacaine (2-10 mg/kg SC) was infused into the incision site for local analgesia, and ketoprofen (2-5 mg/kg IM) was given at the time of surgery for postoperative analgesia. Four of 10 male spectacled eiders and 5 of 6 male king eiders died within 1-4 days after surgery. None of the female spectacled or common eiders and only 1 of the 5 female king eiders died during the same postoperative period. Histopathologic findings in 2 dead male king eiders were severe renal tubular necrosis, acute rhabdomyolysis, and mild visceral gout. Necropsy findings in 3 other dead male king eiders were consistent with visceral gout. We suspect that the perioperative use of ketoprofen caused lethal renal damage in the male eiders. Male eiders may be more susceptible to renal damage than females because of behavioral differences during their short stay on land in mating season. The combination of propofol, bupivacaine, and ketoprofen should not be used to anesthetize free-ranging male eiders, and nonsteroidal anti-inflammatory drugs should not be used perioperatively in any bird that may be predisposed to renal insufficiency.
","language":"English","publisher":"Association of Avian Veterinarians","doi":"10.1647/2001-024","issn":"10826742","usgsCitation":"Mulcahy, D.M., Tuomi, P.A., and Larsen, R.S., 2003, Differential mortality of male spectacled eiders (Somateria fischeri) and king eiders (Somateria spectabilis) subsequent to anesthesia with propofol, bupivacaine, and ketoprofen: Journal of Avian Medicine and Surgery, v. 17, no. 3, p. 117-123, https://doi.org/10.1647/2001-024.","productDescription":"7 p.","startPage":"117","endPage":"123","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":236063,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a00f4e4b0c8380cd4f9ed","contributors":{"authors":[{"text":"Mulcahy, Daniel M. dmulcahy@usgs.gov","contributorId":3102,"corporation":false,"usgs":true,"family":"Mulcahy","given":"Daniel","email":"dmulcahy@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":404243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tuomi, Pamela A.","contributorId":66900,"corporation":false,"usgs":false,"family":"Tuomi","given":"Pamela","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":404244,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Larsen, R. S.","contributorId":81473,"corporation":false,"usgs":false,"family":"Larsen","given":"R.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":404245,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70025192,"text":"70025192 - 2003 - Interannual growth dynamics of vegetation in the Kuparuk River watershed, Alaska based on the Normalized Difference Vegetation Index","interactions":[],"lastModifiedDate":"2018-05-06T11:59:50","indexId":"70025192","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2068,"text":"International Journal of Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Interannual growth dynamics of vegetation in the Kuparuk River watershed, Alaska based on the Normalized Difference Vegetation Index","docAbstract":"Interannual above-ground production patterns are characterized for three tundra ecosystems in the Kuparuk River watershed of Alaska using NOAA-AVHRR Normalized Difference Vegetation Index (NDVI) data. NDVI values integrated over each growing season (SINDVI) were used to represent seasonal production patterns between 1989 and 1996. Spatial differences in ecosystem production were expected to follow north-south climatic and soil gradients, while interannual differences in production were expected to vary with variations in seasonal precipitation and temperature. It was hypothesized that the increased vegetation growth in high latitudes between 1981 and 1991 previously reported would continue through the period of investigation for the study watershed. Zonal differences in vegetation production were confirmed but interannual variations did not covary with seasonal precipitation or temperature totals. A sharp reduction in the SINDVI in 1992 followed by a consistent increase up to 1996 led to a further hypothesis that the interannual variations in SINDVI were associated with variations in stratospheric optical depth. Using published stratospheric optical depth values derived from the SAGE and SAGE-II satellites, it is demonstrated that variations in these depths are likely the primary cause of SINDVI interannual variability.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Remote Sensing","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/0143116021000021170","issn":"01431161","usgsCitation":"Hope, A., Boynton, W., Stow, D., and Douglas, D., 2003, Interannual growth dynamics of vegetation in the Kuparuk River watershed, Alaska based on the Normalized Difference Vegetation Index: International Journal of Remote Sensing, v. 24, no. 17, p. 3413-3425, https://doi.org/10.1080/0143116021000021170.","startPage":"3413","endPage":"3425","numberOfPages":"13","costCenters":[],"links":[{"id":235769,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209388,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/0143116021000021170"}],"volume":"24","issue":"17","noUsgsAuthors":false,"publicationDate":"2010-11-26","publicationStatus":"PW","scienceBaseUri":"505a3ce6e4b0c8380cd63136","contributors":{"authors":[{"text":"Hope, A.S.","contributorId":51076,"corporation":false,"usgs":true,"family":"Hope","given":"A.S.","email":"","affiliations":[],"preferred":false,"id":404182,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boynton, W.L.","contributorId":7062,"corporation":false,"usgs":true,"family":"Boynton","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":404179,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stow, D.A.","contributorId":44336,"corporation":false,"usgs":true,"family":"Stow","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":404181,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Douglas, David C. 0000-0003-0186-1104 ddouglas@usgs.gov","orcid":"https://orcid.org/0000-0003-0186-1104","contributorId":150115,"corporation":false,"usgs":true,"family":"Douglas","given":"David C.","email":"ddouglas@usgs.gov","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":404180,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70024594,"text":"70024594 - 2003 - Long-term change in eelgrass distribution at Bahía San Quintín, Baja California, Mexico, using satellite imagery","interactions":[],"lastModifiedDate":"2018-08-21T13:12:00","indexId":"70024594","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1583,"text":"Estuaries","active":true,"publicationSubtype":{"id":10}},"title":"Long-term change in eelgrass distribution at Bahía San Quintín, Baja California, Mexico, using satellite imagery","docAbstract":"Seagrasses are critically important components of many marine coastal and estuarine ecosystems, but are declining worldwide. Spatial change in distribution of eelgrass, Zostera marina L., was assessed at Bahía San Quintín, Baja California, Mexico, using a map to map comparison of data interpreted from a 1987 Satellite Pour l'Observation de la Terre multispectral satellite image and a 2000 Landsat Enhanced Thematic Mapping image. Eelgrass comprised 49% and 43% of the areal extent of the bay in 1987 and 2000, respectively. Spatial extent of eelgrass was 13% less (-321 ha) in 2000 than in 1987 with most losses occurring in subtidal areas. Over the 13-yr study period, there was a 34% loss of submerged eelgrass (-457 ha) and a 13% (+136 ha) gain of intertidal eelgrass. Within the two types of intertidal eelgrass, the patchy cover class (<85% cover) expanded (+250 ha) and continuous cover class (≥85% cover) declined (-114 ha). Most eelgrass losses were likely the result of sediment loading and turbidity caused by a single flooding event in winter of 1992-1993. Recent large-scale agricultural development of adjacent uplands may have exacerbated the effects of the flood. Oyster farming was not associated with any detectable losses in eelgrass spatial extent, despite the increase in number of oyster racks from 57 to 484 over the study period.
","language":"English","publisher":"Springer","doi":"10.1007/BF02803661","issn":"01608347","usgsCitation":"Ward, D.H., Morton, A., Tibbitts, T.L., Douglas, D.C., and Carrera-Gonzalez, E., 2003, Long-term change in eelgrass distribution at Bahía San Quintín, Baja California, Mexico, using satellite imagery: Estuaries, v. 26, no. 6, p. 1529-1539, https://doi.org/10.1007/BF02803661.","productDescription":"11 p.","startPage":"1529","endPage":"1539","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":232878,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico","state":"Baja California","otherGeospatial":"Bahía San Quintín","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.06712341308594,\n 30.34384300675069\n ],\n [\n -115.89065551757811,\n 30.34384300675069\n ],\n [\n -115.89065551757811,\n 30.542156206995088\n ],\n [\n -116.06712341308594,\n 30.542156206995088\n ],\n [\n -116.06712341308594,\n 30.34384300675069\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"26","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4972e4b0c8380cd685f3","contributors":{"authors":[{"text":"Ward, David H. 0000-0002-5242-2526 dward@usgs.gov","orcid":"https://orcid.org/0000-0002-5242-2526","contributorId":3247,"corporation":false,"usgs":true,"family":"Ward","given":"David","email":"dward@usgs.gov","middleInitial":"H.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":401823,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morton, Alexandra","contributorId":42323,"corporation":false,"usgs":true,"family":"Morton","given":"Alexandra","email":"","affiliations":[],"preferred":false,"id":401822,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tibbitts, T. Lee 0000-0002-0290-7592 ltibbitts@usgs.gov","orcid":"https://orcid.org/0000-0002-0290-7592","contributorId":140455,"corporation":false,"usgs":true,"family":"Tibbitts","given":"T.","email":"ltibbitts@usgs.gov","middleInitial":"Lee","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":false,"id":401821,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Douglas, David C. 0000-0003-0186-1104 ddouglas@usgs.gov","orcid":"https://orcid.org/0000-0003-0186-1104","contributorId":2388,"corporation":false,"usgs":true,"family":"Douglas","given":"David","email":"ddouglas@usgs.gov","middleInitial":"C.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":401820,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Carrera-Gonzalez, Eduardo","contributorId":65638,"corporation":false,"usgs":true,"family":"Carrera-Gonzalez","given":"Eduardo","email":"","affiliations":[],"preferred":false,"id":401824,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70025231,"text":"70025231 - 2003 - Late Paleozoic orogeny in Alaska's Farewell terrane","interactions":[],"lastModifiedDate":"2018-05-07T21:38:04","indexId":"70025231","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3525,"text":"Tectonophysics","active":true,"publicationSubtype":{"id":10}},"title":"Late Paleozoic orogeny in Alaska's Farewell terrane","docAbstract":"Evidence is presented for a previously unrecognized late Paleozoic orogeny in two parts of Alaska's Farewell terrane, an event that has not entered into published scenarios for the assembly of Alaska. The Farewell terrane was long regarded as a piece of the early Paleozoic passive margin of western Canada, but is now thought, instead, to have lain between the Siberian and Laurentian (North American) cratons during the early Paleozoic. Evidence for a late Paleozoic orogeny comes from two belts located 100-200 km apart. In the northern belt, metamorphic rocks dated at 284-285 Ma (three 40Ar/39Ar white-mica plateau ages) provide the main evidence for orogeny. The metamorphic rocks are interpreted as part of the hinterland of a late Paleozoic mountain belt, which we name the Browns Fork orogen. In the southern belt, thick accumulations of Pennsylvanian-Permian conglomerate and sandstone provide the main evidence for orogeny. These strata are interpreted as the eroded and deformed remnants of a late Paleozoic foreland basin, which we name the Dall Basin. We suggest that the Browns Fork orogen and Dall Basin comprise a matched pair formed during collision between the Farewell terrane and rocks to the west. The colliding object is largely buried beneath Late Cretaceous flysch to the west of the Farewell terrane, but may have included parts of the so-called Innoko terrane. The late Paleozoic convergent plate boundary represented by the Browns Fork orogen likely connected with other zones of plate convergence now located in Russia, elsewhere in Alaska, and in western Canada. Published by Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Tectonophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0040-1951(03)00238-5","issn":"00401951","usgsCitation":"Bradley, D.C., Dumoulin, J.A., Layer, P., Sunderlin, D., Roeske, S., McClelland, B., Harris, A., Abbott, G., Bundtzen, T., and Kusky, T., 2003, Late Paleozoic orogeny in Alaska's Farewell terrane: Tectonophysics, v. 372, no. 1-2, p. 23-40, https://doi.org/10.1016/S0040-1951(03)00238-5.","startPage":"23","endPage":"40","numberOfPages":"18","costCenters":[],"links":[{"id":235846,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209421,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0040-1951(03)00238-5"}],"volume":"372","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4501e4b0c8380cd66f63","contributors":{"authors":[{"text":"Bradley, D. C.","contributorId":17634,"corporation":false,"usgs":true,"family":"Bradley","given":"D.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":404323,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dumoulin, Julie A. 0000-0003-1754-1287 dumoulin@usgs.gov","orcid":"https://orcid.org/0000-0003-1754-1287","contributorId":203209,"corporation":false,"usgs":true,"family":"Dumoulin","given":"Julie","email":"dumoulin@usgs.gov","middleInitial":"A.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":404330,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Layer, P.","contributorId":55188,"corporation":false,"usgs":true,"family":"Layer","given":"P.","email":"","affiliations":[],"preferred":false,"id":404327,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sunderlin, David","contributorId":37933,"corporation":false,"usgs":false,"family":"Sunderlin","given":"David","email":"","affiliations":[{"id":79380,"text":"Lafayette College","active":true,"usgs":false}],"preferred":true,"id":404325,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Roeske, S.","contributorId":72992,"corporation":false,"usgs":true,"family":"Roeske","given":"S.","affiliations":[],"preferred":false,"id":404331,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McClelland, B.","contributorId":18156,"corporation":false,"usgs":true,"family":"McClelland","given":"B.","email":"","affiliations":[],"preferred":false,"id":404324,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Harris, A. G.","contributorId":39791,"corporation":false,"usgs":true,"family":"Harris","given":"A. G.","affiliations":[],"preferred":false,"id":404326,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Abbott, G.","contributorId":80879,"corporation":false,"usgs":true,"family":"Abbott","given":"G.","affiliations":[],"preferred":false,"id":404332,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Bundtzen, T.","contributorId":63209,"corporation":false,"usgs":true,"family":"Bundtzen","given":"T.","affiliations":[],"preferred":false,"id":404329,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Kusky, T.","contributorId":59221,"corporation":false,"usgs":true,"family":"Kusky","given":"T.","email":"","affiliations":[],"preferred":false,"id":404328,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":70025232,"text":"70025232 - 2003 - The slow advance of a calving glacier: Hubbard Glacier, Alaska, U.S.A","interactions":[],"lastModifiedDate":"2013-03-12T20:24:31","indexId":"70025232","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":794,"text":"Annals of Glaciology","active":true,"publicationSubtype":{"id":10}},"title":"The slow advance of a calving glacier: Hubbard Glacier, Alaska, U.S.A","docAbstract":"Hubbard Glacier is the largest tidewater glacier in North America. In contrast to most glaciers in Alaska and northwestern Canada, Hubbard Glacier thickened and advanced during the 20th century. This atypical behavior is an important example of how insensitive to climate a glacier can become during parts of the calving glacier cycle. As this glacier continues to advance, it will close the seaward entrance to 50 km long Russell Fjord and create a glacier-dammed, brackish-water lake. This paper describes measured changes in ice thickness, ice speed, terminus advance and fjord bathymetry of Hubbard Glacier, as determined from airborne laser altimetry, aerial photogrammetry, satellite imagery and bathymetric measurements. The data show that the lower regions of the glacier have thickened by as much as 83 m in the last 41 years, while the entire glacier increased in volume by 14.1 km3. Ice speeds are generally decreasing near the calving face from a high of 16.5 m d-1 in 1948 to 11.5 m d-1 in 2001. The calving terminus advanced at an average rate of about 16 m a-1 between 1895 and 1948 and accelerated to 32 m a-1 since 1948. However, since 1986, the advance of the part of the terminus in Disenchantment Bay has slowed to 28 m a-1. Bathymetric data from the lee slope of the submarine terminal moraine show that between 1978 and 1999 the moraine advanced at an average rate of 32 m a-1, which is the same as that of the calving face.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Annals of Glaciology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Ingenta Connect","doi":"10.3189/172756403781816400","issn":"02603055","usgsCitation":"Trabant, D., Krimmel, R.M., Echelmeyer, K., Zirnheld, S., and Elsberg, D., 2003, The slow advance of a calving glacier: Hubbard Glacier, Alaska, U.S.A: Annals of Glaciology, v. 36, no. 1, p. 45-50, https://doi.org/10.3189/172756403781816400.","startPage":"45","endPage":"50","numberOfPages":"6","costCenters":[],"links":[{"id":478522,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3189/172756403781816400","text":"Publisher Index Page"},{"id":235847,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269198,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3189/172756403781816400"}],"volume":"36","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-09-14","publicationStatus":"PW","scienceBaseUri":"505bb037e4b08c986b324ce8","contributors":{"authors":[{"text":"Trabant, D.C.","contributorId":42209,"corporation":false,"usgs":true,"family":"Trabant","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":404334,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Krimmel, R. M.","contributorId":81093,"corporation":false,"usgs":true,"family":"Krimmel","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":404336,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Echelmeyer, K.A.","contributorId":11781,"corporation":false,"usgs":true,"family":"Echelmeyer","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":404333,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zirnheld, S.L.","contributorId":100170,"corporation":false,"usgs":true,"family":"Zirnheld","given":"S.L.","affiliations":[],"preferred":false,"id":404337,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Elsberg, D.H.","contributorId":53140,"corporation":false,"usgs":true,"family":"Elsberg","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":404335,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70026346,"text":"70026346 - 2003 - Variability of the seasonally integrated normalized difference vegetation index across the north slope of Alaska in the 1990s","interactions":[],"lastModifiedDate":"2018-05-06T11:11:26","indexId":"70026346","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2068,"text":"International Journal of Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Variability of the seasonally integrated normalized difference vegetation index across the north slope of Alaska in the 1990s","docAbstract":"The interannual variability and trend of above-ground photosynthetic activity of Arctic tundra vegetation in the 1990s is examined for the north slope region of Alaska, based on the seasonally integrated normalized difference vegetation index (SINDVI) derived from local area coverage (LAC) National Oceanic and Atmospheric Administration (NOAA) Advanced Very High Resolution Radiometer (AVHRR) data. Smaller SINDVI values occurred during the three years (1992-1994) following the volcanic eruption of Mt Pinatubo. Even after implementing corrections for this stratospheric aerosol effect and adjusting for changes in radiometric calibration coefficients, an apparent increasing trend of SINDVI in the 1990s is evident for the entire north slope. The most pronounced increase was observed for the foothills physiographical province.
","language":"English","publisher":"Taylor & Francis","doi":"10.1080/0143116021000020144","issn":"01431161","usgsCitation":"Stow, D., Daeschner, S., Hope, A., Douglas, D., Petersen, A., Myneni, R.B., Zhou, L., and Oechel, W., 2003, Variability of the seasonally integrated normalized difference vegetation index across the north slope of Alaska in the 1990s: International Journal of Remote Sensing, v. 24, no. 5, p. 1111-1117, https://doi.org/10.1080/0143116021000020144.","productDescription":"7 p.","startPage":"1111","endPage":"1117","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":233932,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"North Slope","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -168.48632812499997,\n 66.79190947341796\n ],\n [\n -141.064453125,\n 66.79190947341796\n ],\n [\n -141.064453125,\n 71.93815765811694\n ],\n [\n -168.48632812499997,\n 71.93815765811694\n ],\n [\n -168.48632812499997,\n 66.79190947341796\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"24","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-11-26","publicationStatus":"PW","scienceBaseUri":"505bc13ee4b08c986b32a4ce","contributors":{"authors":[{"text":"Stow, D.","contributorId":79271,"corporation":false,"usgs":true,"family":"Stow","given":"D.","email":"","affiliations":[],"preferred":false,"id":409105,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Daeschner, Scott","contributorId":41192,"corporation":false,"usgs":false,"family":"Daeschner","given":"Scott","email":"","affiliations":[],"preferred":false,"id":409101,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hope, A.","contributorId":97036,"corporation":false,"usgs":false,"family":"Hope","given":"A.","email":"","affiliations":[],"preferred":false,"id":409106,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Douglas, David C. 0000-0003-0186-1104 ddouglas@usgs.gov","orcid":"https://orcid.org/0000-0003-0186-1104","contributorId":150115,"corporation":false,"usgs":true,"family":"Douglas","given":"David C.","email":"ddouglas@usgs.gov","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":409099,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Petersen, A.","contributorId":40383,"corporation":false,"usgs":true,"family":"Petersen","given":"A.","email":"","affiliations":[],"preferred":false,"id":409100,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Myneni, Ranga B.","contributorId":33901,"corporation":false,"usgs":false,"family":"Myneni","given":"Ranga","email":"","middleInitial":"B.","affiliations":[{"id":13570,"text":"Boston University","active":true,"usgs":false}],"preferred":false,"id":409102,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Zhou, L.","contributorId":68455,"corporation":false,"usgs":true,"family":"Zhou","given":"L.","email":"","affiliations":[],"preferred":false,"id":409103,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Oechel, W.","contributorId":76104,"corporation":false,"usgs":true,"family":"Oechel","given":"W.","email":"","affiliations":[],"preferred":false,"id":409104,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70026202,"text":"70026202 - 2003 - New and unique U.S. magnetic database is forthcoming","interactions":[],"lastModifiedDate":"2021-08-21T19:08:10.887837","indexId":"70026202","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2610,"text":"Leading Edge (Tulsa, OK)","active":true,"publicationSubtype":{"id":10}},"title":"New and unique U.S. magnetic database is forthcoming","docAbstract":"An exciting and cost-effective opportunity to acquire a new U.S. magnetic anomaly database exists in calendar year 2004. High Altitude Mapping Missions Incorporated (HAMM) is currently planning an airborne mission to collect high-resolution Interferometric Synthetic Aperture Radar (IFSAR) imagery at an altitude of about 15 km, with a flight-line spacing of about 14 km over the conterminous United States and Alaska. Total and vector magnetic field data will also be collected as a secondary mission objective (i.e., a “piggy-back” magnetometer system). Because HAMM would fund the main flight costs of the mission, the geomagnetic community would acquire invaluable magnetic data at a nominal cost. These unique data should provide new insights on fundamental tectonic and thermal processes and give a new view of the structural and lithologic framework of continental areas and offshore regions.
","language":"English","publisher":"SEG Library","doi":"10.1190/1.1885534","issn":"1070485X","usgsCitation":"Hildenbrand, T., Hinze, W., Randy, K.G., Labson, V., and Roest, W., 2003, New and unique U.S. magnetic database is forthcoming: Leading Edge (Tulsa, OK), v. 22, no. 1, p. 50-51, https://doi.org/10.1190/1.1885534.","productDescription":"2 p.","startPage":"50","endPage":"51","costCenters":[],"links":[{"id":388305,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6557e4b0c8380cd72b7c","contributors":{"authors":[{"text":"Hildenbrand, T.","contributorId":10207,"corporation":false,"usgs":true,"family":"Hildenbrand","given":"T.","email":"","affiliations":[],"preferred":false,"id":408494,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hinze, W.","contributorId":82510,"corporation":false,"usgs":true,"family":"Hinze","given":"W.","affiliations":[],"preferred":false,"id":408498,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Randy, Keller G.","contributorId":39990,"corporation":false,"usgs":true,"family":"Randy","given":"Keller","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":408496,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Labson, V.","contributorId":56013,"corporation":false,"usgs":true,"family":"Labson","given":"V.","email":"","affiliations":[],"preferred":false,"id":408497,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Roest, W.","contributorId":17382,"corporation":false,"usgs":true,"family":"Roest","given":"W.","email":"","affiliations":[],"preferred":false,"id":408495,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70025260,"text":"70025260 - 2003 - Post-breeding distribution of Long-tailed Ducks Clangula hyemalis from the Yukon-Kuskokwim Delta, Alaska","interactions":[],"lastModifiedDate":"2022-08-16T15:08:59.701556","indexId":"70025260","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3764,"text":"Wildfowl","onlineIssn":"2052-6458","printIssn":"0954-6324","active":true,"publicationSubtype":{"id":10}},"title":"Post-breeding distribution of Long-tailed Ducks Clangula hyemalis from the Yukon-Kuskokwim Delta, Alaska","docAbstract":"Breeding populations of Long-tailed Ducks Clangula hyemalis have declined in western Alaska, particularly on the Yukon-Kuskokwim (Y-K) Delta, and the species is currently considered a species of particular concern by the U.S. Fish & Wildlife Service in Alaska. Potential factors that may have contributed to this decline that occurred away from the breeding grounds could not be considered since moulting and wintering areas for this population were unknown. A study was conducted in 1998 and 1999 to locate the moulting and wintering areas of the Y-K Delta breeding population. VHF and satellite transmitters were deployed to identify areas used by moulting birds. Based on the locations identified by satellite telemetry, aerial surveys were flown to locate birds marked with VHF transmitters, then low-level aerial surveys were designed and conducted to determine the number of birds using these and adjacent areas. Moulting locations of 54 marked female Long-tailed Ducks were identified: 13 marked females were found in wetlands and large lakes on the Y-K Delta, 11 in coastal lagoons at St Lawrence Island, Alaska, and two along the coast of the Chukotka Peninsula, Russia. A autumn staging area was identified along the east coast of the Chukotka Peninsula which was used by seven of 10 birds with satellite transmitters providing locations during that period. Birds wintered in coastal waters of the North Pacific Ocean north of 50°N and between 150°E and 130°W. The wide distribution of birds in winter suggests little probability of a single factor in winter contributing to the decline.
","language":"English","publisher":"Wildfowl & Wetlands Trust","usgsCitation":"Petersen, M.R., McCaffery, B.J., and Flint, P.L., 2003, Post-breeding distribution of Long-tailed Ducks Clangula hyemalis from the Yukon-Kuskokwim Delta, Alaska: Wildfowl, v. 54, p. 103-113.","productDescription":"11 p.","startPage":"103","endPage":"113","numberOfPages":"11","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":235774,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":405183,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/1161","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon-Kuskokwim Delta","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -166.39892578125,\n 60.3812902796077\n ],\n [\n -163.4765625,\n 60.3812902796077\n ],\n [\n -163.4765625,\n 63.40136142059639\n ],\n [\n -166.39892578125,\n 63.40136142059639\n ],\n [\n -166.39892578125,\n 60.3812902796077\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"54","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7e57e4b0c8380cd7a49f","contributors":{"authors":[{"text":"Petersen, Margaret R. 0000-0001-6082-3189 mrpetersen@usgs.gov","orcid":"https://orcid.org/0000-0001-6082-3189","contributorId":167729,"corporation":false,"usgs":true,"family":"Petersen","given":"Margaret","email":"mrpetersen@usgs.gov","middleInitial":"R.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":404492,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McCaffery, B. J.","contributorId":99355,"corporation":false,"usgs":false,"family":"McCaffery","given":"B.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":404493,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":404491,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70025269,"text":"70025269 - 2003 - Variation in plumage, molt, and morphology of the Whiskered Auklet (Aethia pygmaea) in Alaska","interactions":[],"lastModifiedDate":"2017-02-28T10:09:48","indexId":"70025269","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Variation in plumage, molt, and morphology of the Whiskered Auklet (Aethia pygmaea) in Alaska","docAbstract":"We studied molt and size variation in Whiskered Auklets collected at sea in August from the Aleutian Islands in 1992 and 1993. We evaluated size differences from external and skeletal measurements. Adults were molting extensively in August, indicating that molt began in July. Primaries 1-5 had been completely replaced, while primaries 6-8 were in various stages of replacement, and primaries 9 and 10 were old in most birds. We also found that juveniles were not molting. This pattern is similar to other species of small auklets where breeding and molt in adults overlap, but juveniles do not molt until the following summer. This suggests that Whiskered Auklets are subjected to similar ecological constraints as other auklets. We provide the first skeletal measurements of Whiskered Auklets and some new external measurements. Results of statistical analyses indicate that there is no sexual dimorphism in adults. A small sample of juveniles suggests that they are similar in size to adults.","language":"English","publisher":"The Association of Field Ornithologists","doi":"10.1648/0273-8570-74.1.90","issn":"02738570","usgsCitation":"Pitocchelli, J., Piatt, J.F., and Carter, H., 2003, Variation in plumage, molt, and morphology of the Whiskered Auklet (Aethia pygmaea) in Alaska: Journal of Field Ornithology, v. 74, no. 1, p. 90-98, https://doi.org/10.1648/0273-8570-74.1.90.","productDescription":"9 p.","startPage":"90","endPage":"98","costCenters":[],"links":[{"id":235926,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"74","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc160e4b08c986b32a548","contributors":{"authors":[{"text":"Pitocchelli, Jay","contributorId":28419,"corporation":false,"usgs":false,"family":"Pitocchelli","given":"Jay","email":"","affiliations":[],"preferred":false,"id":404558,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":404559,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carter, Harry R.","contributorId":79546,"corporation":false,"usgs":true,"family":"Carter","given":"Harry R.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":404557,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70025281,"text":"70025281 - 2003 - Advection, pelagic food webs and the biogeography of seabirds in Beringia","interactions":[],"lastModifiedDate":"2017-03-08T11:43:42","indexId":"70025281","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2675,"text":"Marine Ornithology: Journal of Seabird Research and Conservation","onlineIssn":"2074-1235","printIssn":"1018-3337","active":true,"publicationSubtype":{"id":10}},"title":"Advection, pelagic food webs and the biogeography of seabirds in Beringia","docAbstract":"Despite its great distance from productive shelf-edge habitat, the inner shelf area of the Bering Sea, from St. Lawrence Island to the Bering Strait, supports a surprisingly large number (>5 million) of seabirds during summer, mostly small plantivorous auklets (65%) and large piscivorous murres (19%) and kittiwakes (5%). This paradox of seabird biogeography is explained by the Anadyr “Green Belt” - a current that advects nutrients and plankton over 1200 km from the outer Bering Sea shelf-edge to the central Chukchi Sea. Turbulent upwelling of this nutrient-rich water at Anadyr and Bering straits further enhances high levels of primary production (360 gC m-2y-1) and helps sustain the enormous biomass of zooplankton entrained in the Anadyr Current. Primary production in adjacent waters of the Chukchi Sea (420 gC m-2y-1) exceeds that observed below Bering Strait, and zooplankton are equally abundant. Auklets account for 49% of total food consumption below Bering Strait (411 mt d-1), whereas piscivores dominate (88% of 179 mt d-1) in the Chukchi Sea. Of 2 million seabirds in the Chukchi region, auklets (6%) are supplanted by planktivorous phalaropes (25%), and piscivorous murres (38%) and kittiwakes (15%). Average carbon flux to seabirds (0.65 mgC m-2d-1) over the whole region is more typical of upwelling than shelf ecosystems. The pelagic distribution of seabirds in the region appears to be a function of advection, productivity and water column stability. Planktivores flourish in areas with high zooplankton concentrations on the edge of productive upwelling and frontal zones along the “Green Belt”, whereas piscivores avoid turbulent, mixed waters and forage in stable, stratified waters along the coast and in the central Chukchi Sea.
","language":"English","publisher":"Pacific Seabird Group","issn":"10183337","usgsCitation":"Piatt, J.F., and Springer, A.M., 2003, Advection, pelagic food webs and the biogeography of seabirds in Beringia: Marine Ornithology: Journal of Seabird Research and Conservation, v. 31, no. 2, p. 141-154.","productDescription":"14 p.","startPage":"141","endPage":"154","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":236105,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":337050,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.marineornithology.org/cgi-bin/getpage.cgi?vol=31&no=2","text":"Volume 31, Number 2 on Journal's Website"}],"country":"Russia, United States","state":"Alaska","otherGeospatial":"Bering Sea, Chukchi Sea","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -190.98632812499997,\n 51.508742458803326\n ],\n [\n -154.072265625,\n 51.508742458803326\n ],\n [\n -154.072265625,\n 73.42842364106816\n ],\n [\n -190.98632812499997,\n 73.42842364106816\n ],\n [\n -190.98632812499997,\n 51.508742458803326\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"31","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e70ae4b0c8380cd477f5","contributors":{"authors":[{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":404600,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Springer, Alan M. ams@ims.uaf.edu","contributorId":172461,"corporation":false,"usgs":false,"family":"Springer","given":"Alan","email":"ams@ims.uaf.edu","middleInitial":"M.","affiliations":[],"preferred":false,"id":404601,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70025301,"text":"70025301 - 2003 - A probable extralimital post-breeding assembly of Bufflehead Bucephala albeola in southcentral North Dakota, USA, 1994-2002","interactions":[],"lastModifiedDate":"2012-03-12T17:20:29","indexId":"70025301","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3764,"text":"Wildfowl","onlineIssn":"2052-6458","printIssn":"0954-6324","active":true,"publicationSubtype":{"id":10}},"title":"A probable extralimital post-breeding assembly of Bufflehead Bucephala albeola in southcentral North Dakota, USA, 1994-2002","docAbstract":"The Bufflehead Bucephala albeola breeds predominantly in Canada and Alaska (USA). Evidence suggests that the species may have recently expanded its breeding range southward into central and south central North Dakota. This paper presents data on observations of Buffleheads during the breeding season in Kidder County, North Dakota, 1994-2002, and discusses the possibility that the species has not expanded its breeding range but rather has established an extralimital post-breeding staging area south of its typical breeding range.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wildfowl","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"09546324","usgsCitation":"Igl, L., 2003, A probable extralimital post-breeding assembly of Bufflehead Bucephala albeola in southcentral North Dakota, USA, 1994-2002: Wildfowl, v. 54, p. 81-93.","startPage":"81","endPage":"93","numberOfPages":"13","costCenters":[],"links":[{"id":235778,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e509e4b0c8380cd46aa3","contributors":{"authors":[{"text":"Igl, L.D. 0000-0003-0530-7266","orcid":"https://orcid.org/0000-0003-0530-7266","contributorId":13568,"corporation":false,"usgs":true,"family":"Igl","given":"L.D.","affiliations":[],"preferred":false,"id":404681,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70024863,"text":"70024863 - 2003 - Interglacial extension of the boreal forest limit in the Noatak Valley, northwest Alaska: Evidence from an exhumed river-cut bluff and debris apron","interactions":[],"lastModifiedDate":"2021-08-29T18:22:08.022178","indexId":"70024863","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":899,"text":"Arctic, Antarctic, and Alpine Research","active":true,"publicationSubtype":{"id":10}},"title":"Interglacial extension of the boreal forest limit in the Noatak Valley, northwest Alaska: Evidence from an exhumed river-cut bluff and debris apron","docAbstract":"Numerous exposures of Pleistocene sediments occur in the Noatak basin, which extends for 130 km along the Noatak River in northwestern Alaska. Nk-37, an extensive bluff exposure near the west end of the basin, contains a record of at least three glacial advances separated by interglacial and interstadial deposits. An ancient river-cut bluff and associated debris apron is exposed in profile through the central part of Nk-37. The debris apron contains a rich biotic record and represents part of an interglaciation that is probably assignable to marine-isotope stage 5. Pollen spectra from the lower part of the debris apron closely resemble modern samples taken from the Noatak floodplain in spruce gallery forest, and macrofossils of spruce are also present at this level. Fossil bark beetles and carpenter ants occur higher in the debris apron. Mutual Climatic Range (MCR) estimates from the fossil beetles suggest temperatures similar to or warmer than today. Together, these fossils indicate the presence of an interglacial spruce forest in the western part of the Noatak Basin, which lies about 80 km upstream of the modern limit of spruce forest.
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This project will explore links between oil exposure and the lack of population recovery, with the intent of understanding constraints to recovery of these species and the nearshore environment. In FY 02, sea otter work will include aerial surveys of distribution and abundance and estimates of age-specific survival rates. Harlequin duck field studies will examine the relationship between survival and CYP1A. Captive experiments on harlequin ducks will examine the relationships between oil exposure and CYP1A induction, and metabolic and behavioral consequences of exposure.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"EVOS Restoration Project 423 Final Report","largerWorkSubtype":{"id":9,"text":"Other Report"},"language":"English","collaboration":"EVOS Restoration Project 423 Final Report","usgsCitation":"Bodkin, J.L., Ballachey, B.E., Dean, T., and Esler, D., 2003, Patterns and processes of population change in selected nearshore vertebrate predators.","costCenters":[{"id":106,"text":"Alaska Biological Science Center","active":false,"usgs":true}],"links":[{"id":128317,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae2e4b07f02db688b56","contributors":{"authors":[{"text":"Bodkin, James L. 0000-0003-1641-4438 jbodkin@usgs.gov","orcid":"https://orcid.org/0000-0003-1641-4438","contributorId":748,"corporation":false,"usgs":true,"family":"Bodkin","given":"James","email":"jbodkin@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":296669,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ballachey, Brenda E. 0000-0003-1855-9171 bballachey@usgs.gov","orcid":"https://orcid.org/0000-0003-1855-9171","contributorId":2966,"corporation":false,"usgs":true,"family":"Ballachey","given":"Brenda","email":"bballachey@usgs.gov","middleInitial":"E.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":296670,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dean, T.A.","contributorId":67036,"corporation":false,"usgs":true,"family":"Dean","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":296671,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Esler, Daniel 0000-0001-5501-4555 desler@usgs.gov","orcid":"https://orcid.org/0000-0001-5501-4555","contributorId":5465,"corporation":false,"usgs":true,"family":"Esler","given":"Daniel","email":"desler@usgs.gov","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":12437,"text":"Simon Fraser University, Centre for Wildlife Ecology","active":true,"usgs":false}],"preferred":true,"id":296668,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70026041,"text":"70026041 - 2003 - The 2002 Denali fault earthquake, Alaska: A large magnitude, slip-partitioned event","interactions":[],"lastModifiedDate":"2018-05-20T17:00:54","indexId":"70026041","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"The 2002 Denali fault earthquake, Alaska: A large magnitude, slip-partitioned event","docAbstract":"The MW (moment magnitude) 7.9 Denali fault earthquake on 3 November 2002 was associated with 340 kilometers of surface rupture and was the largest strike-slip earthquake in North America in almost 150 years. It illuminates earthquake mechanics and hazards of large strike-slip faults. It began with thrusting on the previously unrecognized Susitna Glacier fault, continued with right-slip on the Denali fault, then took a right step and continued with right-slip on the Totschunda fault. There is good correlation between geologically observed and geophysically inferred moment release. The earthquake produced unusually strong distal effects in the rupture propagation direction, including triggered seismicity.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1126/science.1082703","issn":"00368075","usgsCitation":"Eberhart-Phillips, D., Haeussler, P.J., Freymueller, J., Frankel, A., Rubin, C., Craw, P., Ratchkovski, N.A., Anderson, G., Carver, G.A., Crone, A.J., Dawson, T.E., Fletcher, H., Hansen, R., Harp, E.L., Harris, R., Hill, D., Hreinsdottir, S., Jibson, R., Jones, L., Kayen, R., Keefer, D.K., Larsen, C., Moran, S., Personius, S., Plafker, G., Sherrod, B., Sieh, K., Sitar, N., and Wallace, W.K., 2003, The 2002 Denali fault earthquake, Alaska: A large magnitude, slip-partitioned event: Science, v. 300, no. 5622, p. 1113-1118, https://doi.org/10.1126/science.1082703.","startPage":"1113","endPage":"1118","numberOfPages":"6","costCenters":[],"links":[{"id":234691,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208729,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1126/science.1082703"}],"volume":"300","issue":"5622","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba645e4b08c986b320fe7","contributors":{"authors":[{"text":"Eberhart-Phillips, D.","contributorId":80428,"corporation":false,"usgs":true,"family":"Eberhart-Phillips","given":"D.","affiliations":[],"preferred":false,"id":407656,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":407654,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Freymueller, J.T.","contributorId":51482,"corporation":false,"usgs":true,"family":"Freymueller","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":407646,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Frankel, A.D.","contributorId":53828,"corporation":false,"usgs":true,"family":"Frankel","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":407647,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rubin, C.M.","contributorId":99011,"corporation":false,"usgs":true,"family":"Rubin","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":407662,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Craw, P.","contributorId":33996,"corporation":false,"usgs":true,"family":"Craw","given":"P.","affiliations":[],"preferred":false,"id":407643,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ratchkovski, N. 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The goals of the study were to describe the incubation behaviour of Greater Scaup in terms of incubation constancy, recess frequency and recess length. The use of endogenous reserves by Greater Scaup was examined by determining weight loss over the incubation period. Further, intraspecific variation in incubation constancy was considered in terms of hypotheses regarding timing of reproduction. Constancy (% time on nest) averaged 59% during egg laying and increased to 83% during incubation. Patterns of daily incubation constancy varied among females, with no overall trend. Females took an average of 4.3 recesses per day, with an average length of 57 minutes. Body mass declined by 6.4 g day-1 and females initiating nests later tended to be lighter. These data suggest that while Greater Scaup utilise some stored reserves during incubation, they probably meet most of their energetic demands by foraging during incubation recesses. These data are not consistent with the hypothesis that females are initiating nests before adequate forage is available in the spring to meet the demands of egg production and maintenance. Thus, the observed delay in the onset of nesting by Greater Scaup, relative to other sympatric nesting species, does not appear to be related to inadequate forage to meet nutritional requirements.
","language":"English","publisher":"Wildfowl & Wetlands Trust","issn":"09546324","usgsCitation":"Flint, P.L., 2003, Incubation behaviour of Greater Scaup Aythya marila on the Yukon-Kuskokwim Delta, Alaska: Wildfowl, v. 54, p. 71-79.","productDescription":"9 p.","startPage":"71","endPage":"79","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":236188,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":337904,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/1158"}],"country":"United States","state":"Alaska","otherGeospatial":"Yukon-Kuskokwim delta","volume":"54","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3a0de4b0c8380cd61b25","contributors":{"authors":[{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":404907,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70025386,"text":"70025386 - 2003 - Life and death of the resurrection plate: Evidence for its existence and subduction in the northeastern Pacific in Paleocene-Eocene time","interactions":[],"lastModifiedDate":"2018-07-07T17:38:20","indexId":"70025386","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Life and death of the resurrection plate: Evidence for its existence and subduction in the northeastern Pacific in Paleocene-Eocene time","docAbstract":"Onshore evidence suggests that a plate is missing from published reconstructions of the northeastern Pacific Ooean in Paleocene- Eocene time. The Resurrection plate, named for the Resurrection Peninsula ophiolite near Seward, Alaska, was located east of the Kula plate and north of the Farallon plate. We interpret coeval near-trench magmatism in southern Alaska and the Cascadia margin as evidence for two slab windows associated with trench-ridge-trench (TRT) triple junctions, which formed the western and southern boundaries of the Resurrection plate. In Alaska, the Sanak-Baranof belt of near-trench intrusions records a west-to-east migration, from 61 to 50 Ma, of the northern TRT triple junction along a 2100-km-long section of coastline. In Oregon, Washington, and southern Vancouver Island, voluminous basaltic volcanism of the Siletz River Volcanics, Crescent Formation, and Metchosin Volcanics occurred between ca. 66 and 48 Ma. Lack of a clear age progression of magmatism along the Cascadia margin suggests that this southern triple junction did not migrate significantly. Synchronous near-trench magmatism from southeastern Alaska to Puget Sound at ca. 50 Ma documents the middle Eocene subduction of a spreading center, the crest of which was subparallel to the margin. We interpret this ca. 50 Ma event as recording the subduction-zone consumption of the last of the Resurrection plate. The existence and subsequent subduction of the Resurrection plate explains (1) northward terrane transport along the southeastern Alaska-British Columbia margin between 70 and 50 Ma, synchronous with an eastward-migrating triple junction in southern Alaska; (2) rapid uplift and voluminous magmatism in the Coast Mountains of British Columbia prior to 50 Ma related to subduction of buoyant, young oceanic crust of the Resurrection plate; (3) cessation of Coast Mountains magmatism at ca. 50 Ma due to cessation of subduction, (4) primitive mafic magmatism in the Coast Mountains and Cascade Range just after 50 Ma, related to slab-window magmatism, (5) birth of the Queen Charlotte transform margin at ca. 50 Ma, (6) extensional exhumation of high-grade metamorphic terranes and development of core complexes in British Columbia, Idaho, and Washington, and extensional collapse of the Cordilleran foreland fold-and-thrust belt in Alberta, Montana, and Idaho after 50 Ma related to initiation of the transform margin, (7) enigmatic 53-45 Ma magmatism associated with extension from Montana to the Yukon Territory as related to slab breakup and the formation of a slab window, (8) right-lateral margin-parallel strike-slip faulting in southern and western Alaska during Late Cretaceous and Paleocene time, which cannot be explained by Farallon convergence vectors, and (9) simultaneous changes in Pacific-Farallon and Pacific-Kula plate motions concurrent with demise of the Kula-Resurrection Ridge.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/0016-7606(2003)115<0867:LADOTR>2.0.CO;2","issn":"00167606","usgsCitation":"Haeussler, P.J., Bradley, D., Wells, R., and Miller, M.L., 2003, Life and death of the resurrection plate: Evidence for its existence and subduction in the northeastern Pacific in Paleocene-Eocene time: Geological Society of America Bulletin, v. 115, no. 7, p. 867-880, https://doi.org/10.1130/0016-7606(2003)115<0867:LADOTR>2.0.CO;2.","startPage":"867","endPage":"880","numberOfPages":"14","costCenters":[],"links":[{"id":235931,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209460,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0016-7606(2003)115<0867:LADOTR>2.0.CO;2"}],"volume":"115","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4753e4b0c8380cd67819","contributors":{"authors":[{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":404990,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bradley, Dwight 0000-0001-9116-5289 bradleyorchard2@gmail.com","orcid":"https://orcid.org/0000-0001-9116-5289","contributorId":2358,"corporation":false,"usgs":true,"family":"Bradley","given":"Dwight","email":"bradleyorchard2@gmail.com","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":404988,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wells, Ray E. 0000-0002-7796-0160 rwells@usgs.gov","orcid":"https://orcid.org/0000-0002-7796-0160","contributorId":2692,"corporation":false,"usgs":true,"family":"Wells","given":"Ray E.","email":"rwells@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":404989,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Miller, Marti L. 0000-0003-0285-4942 mlmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-0285-4942","contributorId":561,"corporation":false,"usgs":true,"family":"Miller","given":"Marti","email":"mlmiller@usgs.gov","middleInitial":"L.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":404991,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70025387,"text":"70025387 - 2003 - Recurring middle Pleistocene outburst floods in east-central Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:20:29","indexId":"70025387","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Recurring middle Pleistocene outburst floods in east-central Alaska","docAbstract":"Recurring glacial outburst floods from the Yukon-Tanana Upland are inferred from sediments exposed along the Yukon River near the mouth of Charley River in east-central Alaska. Deposits range from imbricate gravel and granules indicating flow locally extending up the Yukon valley, to more distal sediments consisting of at least 10 couplets of planar sands, granules, and climbing ripples with up-valley paleocurrent indicators overlain by massive silt. An interglacial organic silt, occurring within the sequence, indicates at least two flood events are associated with an earlier glaciation, and at least three flood events are associated with a later glaciation which postdates the organic silt. A minimum age for the floods is provided by a glass fission track age of 560,000 ?? 80,000 yr on the GI tephra, which occurs 8 m above the flood beds. A maximum age of 780,000 yr for the floods is based on normal magnetic polarity of the sediments. These age constraints allow us to correlate the flood events to the early-middle Pleistocene. And further, the outburst floods indicate extensive glaciation of the Yukon-Tanana Upland during the early-middle Pleistocene, likely representing the most extensive Pleistocene glaciation of the area. ?? 2003 University of Washington. Published by Elsevier Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0033-5894(03)00090-5","issn":"00335894","usgsCitation":"Froese, D., Smith, D., Westgate, J., Ager, T.A., Preece, S., Sandhu, A., Enkin, R., and Weber, F., 2003, Recurring middle Pleistocene outburst floods in east-central Alaska: Quaternary Research, v. 60, no. 1, p. 50-62, https://doi.org/10.1016/S0033-5894(03)00090-5.","startPage":"50","endPage":"62","numberOfPages":"13","costCenters":[],"links":[{"id":209461,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0033-5894(03)00090-5"},{"id":235932,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"50e4a368e4b0e8fec6cdb869","contributors":{"authors":[{"text":"Froese, D.G.","contributorId":41197,"corporation":false,"usgs":true,"family":"Froese","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":404993,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, D.G.","contributorId":49393,"corporation":false,"usgs":true,"family":"Smith","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":404994,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Westgate, J.A.","contributorId":63164,"corporation":false,"usgs":true,"family":"Westgate","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":404995,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ager, T. A.","contributorId":88386,"corporation":false,"usgs":true,"family":"Ager","given":"T.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":404998,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Preece, S.J.","contributorId":70578,"corporation":false,"usgs":true,"family":"Preece","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":404997,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sandhu, A.","contributorId":29185,"corporation":false,"usgs":true,"family":"Sandhu","given":"A.","email":"","affiliations":[],"preferred":false,"id":404992,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Enkin, R.J.","contributorId":105877,"corporation":false,"usgs":true,"family":"Enkin","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":404999,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Weber, F.","contributorId":69343,"corporation":false,"usgs":true,"family":"Weber","given":"F.","affiliations":[],"preferred":false,"id":404996,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70025388,"text":"70025388 - 2003 - Late Quaternary vegetation and climate history of the central Bering land bridge from St. Michael Island, western Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:20:29","indexId":"70025388","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Late Quaternary vegetation and climate history of the central Bering land bridge from St. Michael Island, western Alaska","docAbstract":"Pollen analysis of a sediment core from Zagoskin Lake on St. Michael Island, northeast Bering Sea, provides a history of vegetation and climate for the central Bering land bridge and adjacent western Alaska for the past ???30,000 14C yr B.P. During the late middle Wisconsin interstadial (???30,000-26,000 14C yr B.P.) vegetation was dominated by graminoid-herb tundra with willows (Salix) and minor dwarf birch (Betula nana) and Ericales. During the late Wisconsin glacial interval (26,000-15,000 14C yr B.P.) vegetation was graminoid-herb tundra with willows, but with fewer dwarf birch and Ericales, and more herb types associated with dry habitats and disturbed soils. Grasses (Poaceae) dominated during the peak of this glacial interval. Graminoid-herb tundra suggests that central Beringia had a cold, arid climate from ???30,000 to 15,000 14C yr B.P. Between 15,000 and 13,000 14C yr B.P., birch shrub-Ericales-sedge-moss tundra began to spread rapidly across the land bridge and Alaska. This major vegetation change suggests moister, warmer summer climates and deeper winter snows. A brief invasion of Populus (poplar, aspen) occurred ca. 11,000-9500 14C yr B.P., overlapping with the Younger Dryas interval of dry, cooler(?) climate. During the latest Wisconsin to middle Holocene the Bering land bridge was flooded by rising seas. Alder shrubs (Alnus crispa) colonized the St. Michael Island area ca. 8000 14C yr B.P. Boreal forests dominated by spruce (Picea) spread from interior Alaska into the eastern Norton Sound area in middle Holocene time, but have not spread as far west as St. Michael Island. ?? 2003 University of Washington. Published by Elsevier Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0033-5894(03)00068-1","issn":"00335894","usgsCitation":"Ager, T.A., 2003, Late Quaternary vegetation and climate history of the central Bering land bridge from St. Michael Island, western Alaska: Quaternary Research, v. 60, no. 1, p. 19-32, https://doi.org/10.1016/S0033-5894(03)00068-1.","startPage":"19","endPage":"32","numberOfPages":"14","costCenters":[],"links":[{"id":209476,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0033-5894(03)00068-1"},{"id":235967,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a453ce4b0c8380cd67156","contributors":{"authors":[{"text":"Ager, T. A.","contributorId":88386,"corporation":false,"usgs":true,"family":"Ager","given":"T.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":405000,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70025389,"text":"70025389 - 2003 - Winter habitat use by female caribou in relation to wildland fires in interior Alaska","interactions":[],"lastModifiedDate":"2018-08-03T16:52:11","indexId":"70025389","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Winter habitat use by female caribou in relation to wildland fires in interior Alaska","docAbstract":"The role of wildland fire in the winter habitat use of caribou (Rangifer tarandus) has long been debated. Fire has been viewed as detrimental to caribou because it destroys the slow-growing climax forage lichens that caribou utilize in winter. Other researchers argued that caribou were not reliant on lichens and that fire may be beneficial, even in the short term. We evaluated the distribution of caribou relative to recent fires (<50 years old) within the current winter range of the Nelchina caribou herd in east-central Alaska. To address issues concerning independence and spatial and temporal scales, we used both conventional very high frequency and global positioning system telemetry to estimate caribou use relative to recent, known-aged burns. In addition, we used two methods to estimate availability of different habitat classes. Caribou used recently burned areas much less than expected, regardless of methodologies used. Moreover, within burns, caribou were more likely to use habitat within 500 m of the burn perimeter than core areas. Methods for determining use and availability did not have large influences on our measures of habitat selectivity.
","language":"English","publisher":"NRC Research press","doi":"10.1139/z03-109","usgsCitation":"Joly, K., Dale, B.W., Collins, W.B., and Adams, L., 2003, Winter habitat use by female caribou in relation to wildland fires in interior Alaska: Canadian Journal of Zoology, v. 81, no. 7, p. 1192-1201, https://doi.org/10.1139/z03-109.","productDescription":"10 p.","startPage":"1192","endPage":"1201","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":486681,"rank":1,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P1365EPK","text":"USGS data release","linkHelpText":"GPS Tracking Data for the Nelchina Herd Caribou (Rangifer tarandus granti), Alaska, 1999-2002"},{"id":235968,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"81","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bd153e4b08c986b32f378","contributors":{"authors":[{"text":"Joly, Kyle","contributorId":53117,"corporation":false,"usgs":false,"family":"Joly","given":"Kyle","email":"","affiliations":[{"id":12462,"text":"U.S. Department of the Interior, National Park Service","active":true,"usgs":false}],"preferred":false,"id":405002,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dale, Bruce W.","contributorId":6769,"corporation":false,"usgs":true,"family":"Dale","given":"Bruce","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":405001,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Collins, William B.","contributorId":190452,"corporation":false,"usgs":false,"family":"Collins","given":"William","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":405003,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Adams, Layne G. 0000-0001-6212-2896 ladams@usgs.gov","orcid":"https://orcid.org/0000-0001-6212-2896","contributorId":2776,"corporation":false,"usgs":true,"family":"Adams","given":"Layne G.","email":"ladams@usgs.gov","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":405004,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1003776,"text":"1003776 - 2003 - Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and Sarcocystis canis-like infections in marine mammals","interactions":[],"lastModifiedDate":"2019-11-13T11:55:18","indexId":"1003776","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3686,"text":"Veterinary Parasitology","active":true,"publicationSubtype":{"id":10}},"title":"Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and Sarcocystis canis-like infections in marine mammals","docAbstract":"Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and S. canis are related protozoans that can cause mortality in many species of domestic and wild animals. Recently, T. gondii and S. neurona were recognized to cause encephalitis in marine mammals. As yet, there is no report of natural exposure of N. caninum in marine mammals. In the present study, antibodies to T. gondii and N. caninum were assayed in sera of several species of marine mammals. For T. gondii, sera were diluted 1:25, 1:50, and 1:500 and assayed in the T. gondii modified agglutination test (MAT). Antibodies (MAT a?Y1:25) to T. gondii were found in 89 of 115 (77%) dead, and 18 of 30 (60%) apparently healthy sea otters (Enhydra lutris), 51 of 311 (16%) Pacific harbor seals (Phoca vitulina), 19 of 45 (42%) sea lions (Zalophus californianus), 5 of 32 (16%) ringed seals (Phoca hispida), 4 of 8 (50%) bearded seals (Erignathus barbatus), 1 of 9 (11.1%) spotted seals (Phoca largha), 138 of 141 (98%) Atlantic bottlenose dolphins (Tursiops truncatus), and 3 of 53 (6%) walruses (Odobenus rosmarus). For N. caninum, sera were diluted 1:40, 1:80, 1:160, and 1:320 and examined with the Neospora agglutination test (NAT) using mouse-derived tachyzoites. NAT antibodies were found in 3 of 53 (6%) walruses, 28 of 145 (19%) sea otters, 11 of 311 (3.5%) harbor seals, 1 of 27 (3.7%) sea lions, 4 of 32 (12.5%) ringed seals, 1 of 8 (12.5%) bearded seals, and 43 of 47 (91%) bottlenose dolphins. To our knowledge, this is the first report of N. caninum antibodies in any marine mammal, and the first report of T. gondii antibodies in walruses and in ringed, bearded, spotted, and ribbon seals. Current information on T. gondii-like and Sarcocystis-like infections in marine mammals is reviewed. New cases of clinical S. canis and T. gondii infections are also reported in sea lions, and T. gondii infection in an Antillean manatee (Trichechus manatus manatus).
","language":"English","publisher":"Elsevier","doi":"10.1016/S0304-4017(03)00263-2","usgsCitation":"Dubey, J., Zarnke, R., Thomas, N., Wong, S., Vanbonn, W., Briggs, M., Davis, J., Ewing, R., Mense, M., Kwok, O.C., Romand, S., and Thulliez, P., 2003, Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and Sarcocystis canis-like infections in marine mammals: Veterinary Parasitology, v. 116, no. 4, p. 275-296, https://doi.org/10.1016/S0304-4017(03)00263-2.","productDescription":"22 p.","startPage":"275","endPage":"296","numberOfPages":"22","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":135036,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska, California, Washington","otherGeospatial":"Pacific Coast","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.01367187499999,\n 48.28319289548349\n ],\n [\n -125.24414062499999,\n 48.60385760823255\n ],\n [\n -124.8046875,\n 39.605688178320804\n ],\n [\n -120.14648437499999,\n 33.61461929233378\n ],\n [\n -117.42187500000001,\n 32.10118973232094\n ],\n [\n -116.6748046875,\n 32.731840896865684\n ],\n [\n -117.90527343750001,\n 34.27083595165\n ],\n [\n -118.91601562499999,\n 34.488447837809304\n ],\n [\n -123.92578125,\n 40.54720023441049\n ],\n [\n -124.1455078125,\n 42.94033923363181\n ],\n [\n -123.6181640625,\n 45.79816953017265\n ],\n [\n -124.01367187499999,\n 48.28319289548349\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -130.2978515625,\n 55.52863052257191\n ],\n [\n -141.240234375,\n 60.108670463036\n ],\n [\n -146.513671875,\n 61.48075950007598\n ],\n [\n -152.05078125,\n 61.52269494598361\n ],\n [\n -155.0390625,\n 59.17592824927136\n ],\n [\n -156.26953125,\n 56.70450561416937\n ],\n [\n -153.10546875,\n 56.46249048388979\n ],\n [\n -150.29296875,\n 58.90464570302001\n ],\n [\n -146.6015625,\n 59.80063426102869\n ],\n [\n -141.85546875,\n 59.62332522313024\n ],\n [\n -137.1533203125,\n 58.12431960569374\n ],\n [\n -133.9453125,\n 54.18815548107151\n ],\n [\n -130.2978515625,\n 55.52863052257191\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"116","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ee4b07f02db627ee8","contributors":{"authors":[{"text":"Dubey, J. 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C. H.","contributorId":83891,"corporation":false,"usgs":false,"family":"Kwok","given":"O.","email":"","middleInitial":"C. H.","affiliations":[],"preferred":false,"id":314244,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Romand, S.","contributorId":28945,"corporation":false,"usgs":true,"family":"Romand","given":"S.","email":"","affiliations":[],"preferred":false,"id":314236,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Thulliez, P.","contributorId":67483,"corporation":false,"usgs":true,"family":"Thulliez","given":"P.","email":"","affiliations":[],"preferred":false,"id":314239,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70025391,"text":"70025391 - 2003 - Emmons Lake Volcanic Center, Alaska Peninsula: Source of the Late Wisconsin Dawson tephra, Yukon Territory, Canada","interactions":[],"lastModifiedDate":"2012-03-12T17:20:59","indexId":"70025391","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1168,"text":"Canadian Journal of Earth Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Emmons Lake Volcanic Center, Alaska Peninsula: Source of the Late Wisconsin Dawson tephra, Yukon Territory, Canada","docAbstract":"The Emmons Lake Volcanic Center on the Alaska Peninsula of southwestern Alaska is the site of at least two rhyolitic caldera-forming eruptions (C1 and C2) of late Quaternary age that are possibly the largest of the numerous caldera-forming eruptions known in the Aleutian arc. The deposits produced by these eruptions are widespread (eruptive volumes of >50 km3 each), and their association with Quaternary glacial and eolian deposits on the Alaska Peninsula and elsewhere in Alaska and northwestern Canada enhances the likelihood of establishing geochronological control on Quaternary stratigraphic records in this region. The pyroclastic deposits associated with the second caldera-forming eruption (C2) consist of loose, granular, airfall and pumice-flow deposits that extend for tens of kilometres beyond Emmons Lake caldera, reaching both the Bering Sea and Pacific Ocean coastlines north and south of the caldera. Geochronological and compositional data on C2 deposits indicate a correlation with the Dawson tephra, a 24 000 14C BP (27 000 calibrated years BP), widespread bed of silicic ash found in loess deposits in west-central Yukon Territory, Canada. The correlation clearly establishes the Dawson tephra as the time-stratigraphic marker of the last glacial maximum.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Earth Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/e03-026","issn":"00084077","usgsCitation":"Mangan, M.T., Waythomas, C.F., Miller, T.P., and Trusdell, F., 2003, Emmons Lake Volcanic Center, Alaska Peninsula: Source of the Late Wisconsin Dawson tephra, Yukon Territory, Canada: Canadian Journal of Earth Sciences, v. 40, no. 7, p. 925-936, https://doi.org/10.1139/e03-026.","startPage":"925","endPage":"936","numberOfPages":"12","costCenters":[],"links":[{"id":209492,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/e03-026"},{"id":236002,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0901e4b0c8380cd51d5e","contributors":{"authors":[{"text":"Mangan, M. T.","contributorId":10438,"corporation":false,"usgs":true,"family":"Mangan","given":"M.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":405010,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waythomas, C. F.","contributorId":10065,"corporation":false,"usgs":true,"family":"Waythomas","given":"C.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":405009,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miller, T. P.","contributorId":49345,"corporation":false,"usgs":true,"family":"Miller","given":"T.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":405011,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Trusdell, F. A.","contributorId":57471,"corporation":false,"usgs":true,"family":"Trusdell","given":"F. A.","affiliations":[],"preferred":false,"id":405012,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70025396,"text":"70025396 - 2003 - Variable migratory patterns of different adult rainbow trout life history types in a southwest Alaska watershed","interactions":[],"lastModifiedDate":"2017-03-16T12:13:02","indexId":"70025396","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Variable migratory patterns of different adult rainbow trout life history types in a southwest Alaska watershed","docAbstract":"Radiotelemetry was used to document population structure in adult rainbow trout Oncorhynchus mykiss from the Alagnak River, southwest Alaska. Rainbow trout (N = 134) longer than 440 mm were implanted with radio transmitters and tracked for varying periods from July 1997 to April 1999. Fifty-eight radio-tagged fish were tracked for sufficient duration (at least 11 months) to allow description of seasonal migratory patterns. Unique seasonal movements of fish suggested discrete, within-basin population structure. Telemetry data documented the existence of multiple migratory and nonmigratory groups of rainbow trout, indicating unique life history patterns. The observed groups consisted of what we defined as a lake-resident ecotype, a lake-river ecotype, and a riverine ecotype; the riverive ecotype demonstrated both highly migratory and nonmigratory movement behavior. Considerable variation in movement patterns was found within both the lake-river group and the river migratory group. Radio-tagged trout did not migrate between the two Alagnak watershed lakes in either year of the study, suggesting lake fidelity in the population structure. Alagnak River rainbow trout may have evolved the observed seasonal movement patterns to optimize winter thermal refugia and summer food availability of salmon eggs and carcasses.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/T01-166","issn":"00028487","usgsCitation":"Meka, J.M., Knudsen, E.E., Douglas, D.C., and Benter, R.B., 2003, Variable migratory patterns of different adult rainbow trout life history types in a southwest Alaska watershed: Transactions of the American Fisheries Society, v. 132, no. 4, p. 717-732, https://doi.org/10.1577/T01-166.","productDescription":"16 p.","startPage":"717","endPage":"732","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":236076,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Alagnak River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -157.08251953125,\n 58.73970633523893\n ],\n [\n -156.69799804687497,\n 58.75110666755426\n ],\n [\n -156.2860107421875,\n 58.82511777083639\n ],\n [\n -156.082763671875,\n 58.85354158266562\n ],\n [\n -155.6817626953125,\n 58.82511777083639\n ],\n [\n -155.4949951171875,\n 58.76250326278713\n ],\n [\n -154.8358154296875,\n 58.64836904894546\n ],\n [\n -154.423828125,\n 58.63979389935778\n ],\n [\n -154.18212890625,\n 58.728302265067185\n ],\n [\n -154.16015625,\n 58.876263846088314\n ],\n [\n -154.346923828125,\n 59.08291631425877\n ],\n [\n -154.3634033203125,\n 59.2771080105117\n ],\n [\n -154.8907470703125,\n 59.293942145266506\n ],\n [\n -155.313720703125,\n 59.293942145266506\n ],\n [\n -155.8795166015625,\n 59.316374710316396\n ],\n [\n -156.104736328125,\n 59.369592780878754\n ],\n [\n -156.37939453125,\n 59.293942145266506\n ],\n [\n -156.8792724609375,\n 59.178742850970224\n ],\n [\n -157.1319580078125,\n 58.99531118795094\n ],\n [\n -157.269287109375,\n 58.839332591651775\n ],\n [\n -157.08251953125,\n 58.73970633523893\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"132","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc142e4b08c986b32a4dc","contributors":{"authors":[{"text":"Meka, Julie M.","contributorId":44713,"corporation":false,"usgs":false,"family":"Meka","given":"Julie","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":405023,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Knudsen, E. Eric","contributorId":104818,"corporation":false,"usgs":true,"family":"Knudsen","given":"E.","email":"","middleInitial":"Eric","affiliations":[],"preferred":false,"id":405022,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Douglas, David C. 0000-0003-0186-1104 ddouglas@usgs.gov","orcid":"https://orcid.org/0000-0003-0186-1104","contributorId":2388,"corporation":false,"usgs":true,"family":"Douglas","given":"David","email":"ddouglas@usgs.gov","middleInitial":"C.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":405021,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Benter, Robert B.","contributorId":81678,"corporation":false,"usgs":false,"family":"Benter","given":"Robert","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":405024,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70026130,"text":"70026130 - 2003 - Bedload component of glacially discharged sediment: Insights from the Matanuska Glacier, Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:20:35","indexId":"70026130","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Bedload component of glacially discharged sediment: Insights from the Matanuska Glacier, Alaska","docAbstract":"The flux of glacially derived bedload and the proportions of the suspended and bedload components carried by proglacial streams are highly debated. Published data indicate a large range-from <30% to >75%-in the bedload percentage of the total load. Two \"vents,\" where supercooled subglacial meltwater and sediment are discharged, were sampled over the course of an entire melt season in order to quantify the flux of glacially delivered bedload at the Matanuska Glacier, Alaska. The bedload component contributed by these vents, for the one melt season monitored, is negligible. Furthermore, the bedload fluxes appear to be strongly supply limited, as shown by the poorly correlated discharge, bedload-flux magnitude, and grain-size caliber. Thus, in this case, any attempt to employ a predictive quantitative expression for coarse-sediment production based on discharge alone would be inaccurate. A nonglaciated basin proximal to the Matanuska Glacier terminus yielded higher bedload sediment fluxes and larger clast sizes than delivered by the two monitored vents. Such nonglaciated basins should not be overlooked as potentially major sources of coarse bedload that is reworked and incorporated into valley outwash.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/0091-7613(2003)031<0007:BCOGDS>2.0.CO;2","issn":"00917613","usgsCitation":"Pearce, J., Pazzaglia, F., Evenson, E., Lawson, D.E., Alley, R.B., Germanoski, D., and Denner, J., 2003, Bedload component of glacially discharged sediment: Insights from the Matanuska Glacier, Alaska: Geology, v. 31, no. 1, p. 7-10, https://doi.org/10.1130/0091-7613(2003)031<0007:BCOGDS>2.0.CO;2.","startPage":"7","endPage":"10","numberOfPages":"4","costCenters":[],"links":[{"id":208883,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0091-7613(2003)031<0007:BCOGDS>2.0.CO;2"},{"id":234958,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f041e4b0c8380cd4a6a4","contributors":{"authors":[{"text":"Pearce, J.T.","contributorId":96061,"corporation":false,"usgs":true,"family":"Pearce","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":408033,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pazzaglia, F.J.","contributorId":73793,"corporation":false,"usgs":true,"family":"Pazzaglia","given":"F.J.","affiliations":[],"preferred":false,"id":408031,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Evenson, E.B.","contributorId":79628,"corporation":false,"usgs":true,"family":"Evenson","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":408032,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lawson, D. E.","contributorId":9343,"corporation":false,"usgs":true,"family":"Lawson","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":408027,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Alley, R. B.","contributorId":49533,"corporation":false,"usgs":false,"family":"Alley","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":408029,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Germanoski, D.","contributorId":19349,"corporation":false,"usgs":true,"family":"Germanoski","given":"D.","affiliations":[],"preferred":false,"id":408028,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Denner, J.D.","contributorId":54778,"corporation":false,"usgs":true,"family":"Denner","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":408030,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70025470,"text":"70025470 - 2003 - A late quaternary record of eolian silt deposition in a maar lake, St. Michael Island, western Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:21:00","indexId":"70025470","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"A late quaternary record of eolian silt deposition in a maar lake, St. Michael Island, western Alaska","docAbstract":"Recent stratigraphic studies in central Alaska have yielded the unexpected finding that there is little evidence for full-glacial (late Wisconsin) loess deposition. Because the loess record of western Alaska is poorly exposed and not well known, we analyzed a core from Zagoskin Lake, a maar lake on St. Michael Island, to determine if a full-glacial eolian record could be found in that region. Particle size and geochemical data indicate that the mineral fraction of the lake sediments is not derived from the local basalt and is probably eolian. Silt deposition took place from at least the latter part of the mid-Wisconsin interstadial period through the Holocene, based on radiocarbon dating. Based on the locations of likely loess sources, eolian silt in western Alaska was probably deflated by northeasterly winds from glaciofluvial sediments. If last-glacial winds that deposited loess were indeed from the northeast, this reconstruction is in conflict with a model-derived reconstruction of paleowinds in Alaska. Mass accumulation rates in Zagoskin Lake were higher during the Pleistocene than during the Holocene. In addition, more eolian sediment is recorded in the lake sediments than as loess on the adjacent landscape. The thinner loess record on land may be due to the sparse, herb tundra vegetation that dominated the landscape in full-glacial time. Herb tundra would have been an inefficient loess trap compared to forest or even shrub tundra due to its low roughness height. The lack of abundant, full-glacial, eolian silt deposition in the loess stratigraphic record of central Alaska may be due, therefore, to a mimimal ability of the landscape to trap loess, rather than a lack of available eolian sediment. ?? 2003 University of Washington. Published by Elsevier Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0033-5894(03)00062-0","issn":"00335894","usgsCitation":"Muhs, D., Ager, T.A., Been, J., Bradbury, J., and Dean, W., 2003, A late quaternary record of eolian silt deposition in a maar lake, St. Michael Island, western Alaska: Quaternary Research, v. 60, no. 1, p. 110-122, https://doi.org/10.1016/S0033-5894(03)00062-0.","startPage":"110","endPage":"122","numberOfPages":"13","costCenters":[],"links":[{"id":209493,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0033-5894(03)00062-0"},{"id":236007,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"5059e435e4b0c8380cd464d1","contributors":{"authors":[{"text":"Muhs, D.R. 0000-0001-7449-251X","orcid":"https://orcid.org/0000-0001-7449-251X","contributorId":61460,"corporation":false,"usgs":true,"family":"Muhs","given":"D.R.","affiliations":[],"preferred":false,"id":405316,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ager, T. A.","contributorId":88386,"corporation":false,"usgs":true,"family":"Ager","given":"T.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":405317,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Been, J.","contributorId":24949,"corporation":false,"usgs":true,"family":"Been","given":"J.","email":"","affiliations":[],"preferred":false,"id":405315,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bradbury, J.P.","contributorId":14431,"corporation":false,"usgs":true,"family":"Bradbury","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":405314,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dean, W.E.","contributorId":97099,"corporation":false,"usgs":true,"family":"Dean","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":405318,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}