The fundamental niche of a species is rarely if ever realized because the presence of other species restricts it to a narrower range of ecological conditions. The effects of this narrower range of conditions define how resources are partitioned. Resource partitioning has been inferred but not demonstrated previously for sympatric ursids. We estimated assimilated diet in relation to body condition (body fat and lean and total body mass) and reproduction for sympatric brown bears (Ursus arctos) and American black bears (U. americanus) in south‐central Alaska, 1998–2000. Based on isotopic analysis of blood and keratin in claws, salmon (Oncorhynchus spp.) predominated in brown bear diets (>53% annually) whereas black bears assimilated 0–25% salmon annually. Black bears did not exploit salmon during a year with below average spawning numbers, probably because brown bears deterred black bear access to salmon. Proportion of salmon in assimilated diet was consistent across years for brown bears and represented the major portion of their diet. Body size of brown bears in the study area approached mean body size of several coastal brown bear populations, demonstrating the importance of salmon availability to body condition. Black bears occurred at a comparable density (mass : mass), but body condition varied and was related directly to the amount of salmon assimilated in their diet. Both species gained most lean body mass during spring and all body fat during summer when salmon were present. Improved body condition (i.e., increased percentage body fat) from salmon consumption reduced catabolism of lean body mass during hibernation, resulting in better body condition the following spring. Further, black bear reproduction was directly related to body condition; reproductive rates were reduced when body condition was lower. High body fat content across years for brown bears was reflected in consistently high reproductive levels. We suggest that the fundamental niche of black bears was constrained by brown bears through partitioning of food resources, which varied among years. Reduced exploitation of salmon caused black bears to rely more extensively on less reliable or nutritious food sources (e.g., moose [Alces alces], berries) resulting in lowered body condition and subsequent reproduction.
","language":"English","publisher":"Ecological Society of America","doi":"10.1890/1051-0761(2006)016[2333:IRPISU]2.0.CO;2","usgsCitation":"Belant, J.L., Kielland, K., Follmann, E., and Adams, L., 2006, Interspecific resource partitioning in sympatric ursids: Ecological Applications, v. 16, no. 6, p. 2333-2343, https://doi.org/10.1890/1051-0761(2006)016[2333:IRPISU]2.0.CO;2.","productDescription":"11 p.","startPage":"2333","endPage":"2343","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":236420,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3dafe4b0c8380cd63766","contributors":{"authors":[{"text":"Belant, Jerrold L.","contributorId":108394,"corporation":false,"usgs":false,"family":"Belant","given":"Jerrold","email":"","middleInitial":"L.","affiliations":[{"id":35599,"text":"Carnivore Ecology Laboratory, Mississippi State University, Mississippi State, MS","active":true,"usgs":false}],"preferred":false,"id":420675,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kielland, Knut","contributorId":189214,"corporation":false,"usgs":false,"family":"Kielland","given":"Knut","email":"","affiliations":[],"preferred":false,"id":420674,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Follmann, Erich H.","contributorId":75049,"corporation":false,"usgs":true,"family":"Follmann","given":"Erich H.","affiliations":[],"preferred":false,"id":420672,"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":420673,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028920,"text":"70028920 - 2006 - Fabricating data: How substituting values for nondetects can ruin results, and what can be done about it","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028920","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1226,"text":"Chemosphere","active":true,"publicationSubtype":{"id":10}},"title":"Fabricating data: How substituting values for nondetects can ruin results, and what can be done about it","docAbstract":"The most commonly used method in environmental chemistry to deal with values below detection limits is to substitute a fraction of the detection limit for each nondetect. Two decades of research has shown that this fabrication of values produces poor estimates of statistics, and commonly obscures patterns and trends in the data. Papers using substitution may conclude that significant differences, correlations, and regression relationships do not exist, when in fact they do. The reverse may also be true. Fortunately, good alternative methods for dealing with nondetects already exist, and are summarized here with references to original sources. Substituting values for nondetects should be used rarely, and should generally be considered unacceptable in scientific research. There are better ways.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemosphere","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemosphere.2006.04.051","issn":"00456535","usgsCitation":"Helsel, D., 2006, Fabricating data: How substituting values for nondetects can ruin results, and what can be done about it: Chemosphere, v. 65, no. 11, p. 2434-2439, https://doi.org/10.1016/j.chemosphere.2006.04.051.","startPage":"2434","endPage":"2439","numberOfPages":"6","costCenters":[],"links":[{"id":209748,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemosphere.2006.04.051"},{"id":236450,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e88e4b0c8380cd534e4","contributors":{"authors":[{"text":"Helsel, D.R.","contributorId":57448,"corporation":false,"usgs":false,"family":"Helsel","given":"D.R.","email":"","affiliations":[{"id":7242,"text":"Wisconsin Department of Natural Resources, Madison, WI, USA","active":true,"usgs":false}],"preferred":false,"id":420563,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70028911,"text":"70028911 - 2006 - Attributes of desert tortoise populations at the National Training Center, Central Mojave Desert, California, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:20:59","indexId":"70028911","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2183,"text":"Journal of Arid Environments","active":true,"publicationSubtype":{"id":10}},"title":"Attributes of desert tortoise populations at the National Training Center, Central Mojave Desert, California, USA","docAbstract":"We sampled 21 study plots for desert tortoises (Gopherus agassizii) at the National Training Center, Fort Irwin, California. Each plot was sampled once between 1997 and 2003 to obtain a snapshot of population attributes, status, and relationships between tortoise densities and human activities. Densities ranged from <1 to 28 tortoises km-2; overall, tortoises were uncommon to rare at 16 of the 21 plots. Tortoise densities were negatively correlated with death rates, infectious disease (mycoplasmosis), surface disturbance and trash. Health status of tortoises was correlated with some anthropogenic uses. The presence of infectious disease in tortoises was negatively correlated with distances from offices, the Ft. Irwin cantonment, and paved roads. Also, significantly more tortoises with shell disease were found on plots with current and recent military use than on plots with no history of military use. Factors contributing to or causing deaths of tortoises included vehicles, vandalism, predation, mycoplasmosis and shell diseases. Annual death rates for subadult and adult tortoises ranged from 1.9% to 95.2% for the 4 years preceding surveys. Deaths from anthropogenic sources were significantly correlated with surface disturbances, trash, military ordnance, and proximity to offices and paved roads-typical characteristics of military training areas.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Arid Environments","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jaridenv.2006.02.001","issn":"01401963","usgsCitation":"Berry, K., Bailey, T., and Anderson, K., 2006, Attributes of desert tortoise populations at the National Training Center, Central Mojave Desert, California, USA: Journal of Arid Environments, v. 67, no. SUPPL., p. 165-191, https://doi.org/10.1016/j.jaridenv.2006.02.001.","startPage":"165","endPage":"191","numberOfPages":"27","costCenters":[],"links":[{"id":209647,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jaridenv.2006.02.001"},{"id":236311,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"67","issue":"SUPPL.","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eed7e4b0c8380cd49fd5","contributors":{"authors":[{"text":"Berry, K.H.","contributorId":17934,"corporation":false,"usgs":true,"family":"Berry","given":"K.H.","email":"","affiliations":[],"preferred":false,"id":420517,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bailey, T.Y.","contributorId":64008,"corporation":false,"usgs":true,"family":"Bailey","given":"T.Y.","email":"","affiliations":[],"preferred":false,"id":420519,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, K.M.","contributorId":39996,"corporation":false,"usgs":true,"family":"Anderson","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":420518,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028903,"text":"70028903 - 2006 - Complementary population dynamics of exotic and native Daphnia in North American reservoir communities","interactions":[],"lastModifiedDate":"2012-03-12T17:20:45","indexId":"70028903","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":883,"text":"Archiv fur Hydrobiologie","active":true,"publicationSubtype":{"id":10}},"title":"Complementary population dynamics of exotic and native Daphnia in North American reservoir communities","docAbstract":"During its invasion of North America, the exotic Daphnia lumholtzi has rapidly colonized numerous reservoirs, natural lakes, and large rivers. In the current study, we examine the overlap between D. lumholtzi and native Daphnia species through analysis of two data sets: co-occurrence in reservoirs of the south-central United States and population dynamics in one reservoir. In 171 reservoirs and oxbow lakes, D. lumholtzi was among the most prevalent species and its distribution was independent of other Daphnia species. Over a 28-month period in Stockton Lake, Missouri, D. lumholtzi was abundant only in late summer, a period when the epilimnion was warm (25-30??C) and cyanobacteria were common. Native Daphnia (D. mendotae, D. parvula, and D. retrocurva) complemented this pattern, being generally rare in summer and most abundant during winter and spring. Peak densities and average fecundities of native Daphnia during the cooler months were typically greater than densities and fecundities of D. lumholtzi in summer. The complementary population dynamics between native and exotic species may be significant for the food webs in warm reservoirs, with D. lumholtzi providing another food resource when the abundance of large zooplankton is ordinarily low. ?? 2006 E. Schweizerbart'sche Verlagsbuchhandlung.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Archiv fur Hydrobiologie","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1127/0003-9136/2006/0167-0245","issn":"00039136","usgsCitation":"Havel, J., and Graham, J., 2006, Complementary population dynamics of exotic and native Daphnia in North American reservoir communities: Archiv fur Hydrobiologie, v. 167, no. 1-4, p. 245-264, https://doi.org/10.1127/0003-9136/2006/0167-0245.","startPage":"245","endPage":"264","numberOfPages":"20","costCenters":[],"links":[{"id":210007,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1127/0003-9136/2006/0167-0245"},{"id":236794,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"167","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f8f5e4b0c8380cd4d375","contributors":{"authors":[{"text":"Havel, J.E.","contributorId":72548,"corporation":false,"usgs":true,"family":"Havel","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":420489,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Graham, J.L. 0000-0002-6420-9335","orcid":"https://orcid.org/0000-0002-6420-9335","contributorId":79226,"corporation":false,"usgs":true,"family":"Graham","given":"J.L.","affiliations":[],"preferred":false,"id":420490,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028823,"text":"70028823 - 2006 - Geomorphic effects of large debris flows and flash floods, northern Venezuela, 1999","interactions":[],"lastModifiedDate":"2012-03-12T17:21:00","indexId":"70028823","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3804,"text":"Zeitschrift fur Geomorphologie, Supplementband","active":true,"publicationSubtype":{"id":10}},"title":"Geomorphic effects of large debris flows and flash floods, northern Venezuela, 1999","docAbstract":"A rare, high-magnitude storm in northern Venezuela in December 1999 triggered debris flows and flash floods, and caused one of the worst natural disasters in the recorded history of the Americas. Some 15,000 people were killed. The debris flows and floods inundated coastal communities on alluvial fans at the mouths of a coastal mountain drainage network and destroyed property estimated at more than $2 billion. Landslides were abundant and widespread on steep slopes within areas underlain by schist and gneiss from near the coast to slightly over the crest of the mountain range. Some hillsides were entirely denuded by single or coalescing failures, which formed massive debris flows in river channels flowing out onto densely populated alluvial fans at the coast. The massive amount of sediment derived from 24 watersheds along 50 km of the coast during the storm and deposited on alluvial fans and beaches has been estimated at 15 to 20 million m3. Sediment yield for the 1999 storm from the approximately 200 km2 drainage area of watersheds upstream of the alluvial fans was as much as 100,000 m3/km2. Rapid economic development in this dynamic geomorphic environment close to the capital city of Caracas, in combination with a severe rain storm, resulted in the death of approximately 5% of the population (300,000 total prior to the storm) in the northern Venezuelan state of Vargas. ?? 2006 Gebru??der Borntraeger.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Zeitschrift fur Geomorphologie, Supplementband","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00442798","usgsCitation":"Larsen, M.C., and Wieczorek, G.F., 2006, Geomorphic effects of large debris flows and flash floods, northern Venezuela, 1999: Zeitschrift fur Geomorphologie, Supplementband, v. 145, p. 147-175.","startPage":"147","endPage":"175","numberOfPages":"29","costCenters":[],"links":[{"id":236585,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"145","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2789e4b0c8380cd59996","contributors":{"authors":[{"text":"Larsen, M. C.","contributorId":66287,"corporation":false,"usgs":true,"family":"Larsen","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":419893,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wieczorek, G. F.","contributorId":50143,"corporation":false,"usgs":true,"family":"Wieczorek","given":"G.","middleInitial":"F.","affiliations":[],"preferred":false,"id":419892,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028753,"text":"70028753 - 2006 - Biodiversity management of fens and fen meadows by grazing, cutting and burning","interactions":[],"lastModifiedDate":"2012-03-12T17:20:45","indexId":"70028753","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Biodiversity management of fens and fen meadows by grazing, cutting and burning","docAbstract":"Question: Can the biodiversity of fens in Europe and North America be maintained through the use of grazing (especially cattle grazing), fire, and/or cutting? Location: European and North American fens. Methods: This paper is a review of the literature on the effects of grazing, fire and cutting on fens, to explore the relationship between management and biodiversity in fens. Results: A reduction of cattle grazing, mowing and burning in fens has led to a reduction in biodiversity in fens. The vegetation of abandoned fens shifts to trees and shrubs after 10-15 years, which shade the smaller and rarer species of these wetlands. While careful use of fire is used to manage fens in North America, it is not widely used in European fens, perhaps because the peat of drained fens may catch fire. Cattle grazing cannot be considered a natural disturbance in North America, since cattle did not evolve on that continent. In Europe, cattle do not generally graze in unaltered fens, but they do use slightly drained fen meadows. Conclusions: Three approaches have been used to control the dominance of tall woody and herbaceous species in abandoned fens, including the re-introduction of cattle, mowing, and burning. Overgrazing results in a permanent reduction in biodiversity, therefore cattle re-introduction must be approached cautiously. In Europe, but not in North America, mowing has been an important management tool, and mowing has been successful in maintaining species richness, particularly in fens that have been mowed annually for centuries. Fire has been the most common and successful management tool in North America although it is not effective in removing shrubs that have become large. Because the problems and solutions are similar, the literature of both European and North American fen management can be analyzed to better assess the management of fens on both continents. Many management questions require further study and these are listed in the paper. ?? IAVS; Opulus Press.","largerWorkTitle":"Applied Vegetation Science","language":"English","doi":"10.1658/1402-2001(2006)9[307:BMOFAF]2.0.CO;2","issn":"14022001","usgsCitation":"Middleton, B., Holsten, B., and Van Diggelen, R., 2006, Biodiversity management of fens and fen meadows by grazing, cutting and burning, in Applied Vegetation Science, v. 9, no. 2, p. 307-316, https://doi.org/10.1658/1402-2001(2006)9[307:BMOFAF]2.0.CO;2.","startPage":"307","endPage":"316","numberOfPages":"10","costCenters":[],"links":[{"id":209871,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1658/1402-2001(2006)9[307:BMOFAF]2.0.CO;2"},{"id":236613,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f14ae4b0c8380cd4ab74","contributors":{"authors":[{"text":"Middleton, B.A. 0000-0002-1220-2326 middletonb@usgs.gov","orcid":"https://orcid.org/0000-0002-1220-2326","contributorId":89108,"corporation":false,"usgs":true,"family":"Middleton","given":"B.A.","email":"middletonb@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":false,"id":419615,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Holsten, B.","contributorId":77347,"corporation":false,"usgs":true,"family":"Holsten","given":"B.","email":"","affiliations":[],"preferred":false,"id":419613,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Van Diggelen, R.","contributorId":88935,"corporation":false,"usgs":true,"family":"Van Diggelen","given":"R.","email":"","affiliations":[],"preferred":false,"id":419614,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028727,"text":"70028727 - 2006 - The rocks of Gusev Crater as viewed by the Mini-TES instrument","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028727","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"The rocks of Gusev Crater as viewed by the Mini-TES instrument","docAbstract":"The Miniature Thermal Emission Spectrometer (Mini-TES) on board the Mars Exploration Rover Spirit is part of a payload designed to investigate whether a lake once existed in Gusev Crater. Mini-TES has observed hundreds of rocks along the rover's traverse into the Columbia Hills, yielding information on their distribution, bulk mineralogy, and the potential role of water at the site. Although dust in various forms produces contributions to the spectra, we have established techniques for dealing with it. All of the rocks encountered on the plains traverse from the lander to the base of the Columbia Hills share common spectral features consistent with an olivine-rich basaltic rock known as Adirondack Class. Beginning at the base of the West Spur of the Columbia Hills and across its length, the rocks are spectrally distinct from the plains but can be grouped into a common type called Clovis Class. These rocks, some of which appear as in-place outcrop, are dominated by a component whose spectral character is consistent with unaltered basaltic glass despite evidence from other rover instruments for significant alteration. The northwest flank of Husband Hill is covered in float rocks known as Wishstone Class with spectral features that can be attributed uniquely to plagioclase feldspar, a phase that represents more than half of the bulk mineralogy. Rare exceptions are three classes of basaltic \"exotics\" found scattered across Husband Hill that may represent impact ejecta and/or float derived from local intrusions within the hills. The rare outcrops observed on Husband Hill display distinctive spectral characteristics. The outcrop called Peace shows a feature attributable to molecular bound water, and the outcrop that hosts the rock called Watchtower displays a dominant basaltic glass component. Despite evidence from the rover's payload for significant alteration of some of the rocks, no unambiguous detection of crystalline phyllosilicates or other secondary silicates has been observed by Mini-TES. The mineralogical results supplied by Mini-TES provide no clear evidence that a lake once existed in Gusev Crater. Copyright 2006 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2006JE002747","issn":"01480227","usgsCitation":"Ruff, S.W., Christensen, P.R., Blaney, D., Farrand, W.H., Johnson, J.R., Michalski, J., Moersch, J., Wright, S., and Squyres, S.W., 2006, The rocks of Gusev Crater as viewed by the Mini-TES instrument: Journal of Geophysical Research E: Planets, v. 111, no. 12, https://doi.org/10.1029/2006JE002747.","costCenters":[],"links":[{"id":477471,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006je002747","text":"Publisher Index Page"},{"id":209606,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JE002747"},{"id":236260,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"111","issue":"12","noUsgsAuthors":false,"publicationDate":"2006-12-30","publicationStatus":"PW","scienceBaseUri":"505baf48e4b08c986b3246a2","contributors":{"authors":[{"text":"Ruff, S. W.","contributorId":63136,"corporation":false,"usgs":false,"family":"Ruff","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":419479,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christensen, P. R.","contributorId":7819,"corporation":false,"usgs":false,"family":"Christensen","given":"P.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":419474,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blaney, D.L.","contributorId":43477,"corporation":false,"usgs":true,"family":"Blaney","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":419477,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Farrand, W. H.","contributorId":64372,"corporation":false,"usgs":true,"family":"Farrand","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":419480,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, J. R.","contributorId":69278,"corporation":false,"usgs":true,"family":"Johnson","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":419481,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Michalski, J.R.","contributorId":46202,"corporation":false,"usgs":true,"family":"Michalski","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":419478,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Moersch, J.E.","contributorId":75309,"corporation":false,"usgs":true,"family":"Moersch","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":419482,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Wright, S.P.","contributorId":14622,"corporation":false,"usgs":true,"family":"Wright","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":419475,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Squyres, S. W.","contributorId":31836,"corporation":false,"usgs":true,"family":"Squyres","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":419476,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70028688,"text":"70028688 - 2006 - Automatic alignment of vector data and orthoimagery for the national map","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028688","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Automatic alignment of vector data and orthoimagery for the national map","docAbstract":"A general problem in combining road vector data with orthoimagery from different sources is that they rarely align. There are a variety of causes to this problem, but the most common one is that the latest products are collected with higher accuracy and improved processing techniques. In previous work, we developed techniques to automatically correct the alignment of vector data with orthoimagery using a technique called conflation. However, in applying our technique to real-world datasets provided by USGS, we discovered that these techniques failed in some areas. In this paper, we describe some refinements to our original approach that provide consistently better results in aligning the vector data with the orthoimagery.","largerWorkTitle":"ACM International Conference Proceeding Series","conferenceTitle":"7th Annual International Conference on Digital Government Research, Dg.o 2006","conferenceDate":"21 May 2006 through 24 May 2006","conferenceLocation":"San Diego, CA","language":"English","doi":"10.1145/1146598.1146680","usgsCitation":"Knoblock, C., Shahabi, C., Chen, C., and Usery, E., 2006, Automatic alignment of vector data and orthoimagery for the national map, in ACM International Conference Proceeding Series, v. 151, San Diego, CA, 21 May 2006 through 24 May 2006, p. 303-304, https://doi.org/10.1145/1146598.1146680.","startPage":"303","endPage":"304","numberOfPages":"2","costCenters":[],"links":[{"id":236783,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209997,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1145/1146598.1146680"}],"volume":"151","noUsgsAuthors":false,"publicationDate":"2006-05-21","publicationStatus":"PW","scienceBaseUri":"5059eef8e4b0c8380cd4a094","contributors":{"authors":[{"text":"Knoblock, C.A.","contributorId":105107,"corporation":false,"usgs":true,"family":"Knoblock","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":419281,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shahabi, C.","contributorId":51521,"corporation":false,"usgs":true,"family":"Shahabi","given":"C.","email":"","affiliations":[],"preferred":false,"id":419280,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chen, C.-C.","contributorId":22559,"corporation":false,"usgs":true,"family":"Chen","given":"C.-C.","email":"","affiliations":[],"preferred":false,"id":419278,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Usery, E.L.","contributorId":45355,"corporation":false,"usgs":true,"family":"Usery","given":"E.L.","email":"","affiliations":[],"preferred":false,"id":419279,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028660,"text":"70028660 - 2006 - Testing of stack-unit/aquifer sensitivity analysis using contaminant plume distribution in the subsurface of Savannah River Site, South Carolina, USA","interactions":[],"lastModifiedDate":"2017-01-18T12:52:28","indexId":"70028660","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Testing of stack-unit/aquifer sensitivity analysis using contaminant plume distribution in the subsurface of Savannah River Site, South Carolina, USA","docAbstract":"Published information on the correlation and field-testing of the technique of stack-unit/aquifer sensitivity mapping with documented subsurface contaminant plumes is rare. The inherent characteristic of stack-unit mapping, which makes it a superior technique to other analyses that amalgamate data, is the ability to deconstruct the sensitivity analysis on a unit-by-unit basis. An aquifer sensitivity map, delineating the relative sensitivity of the Crouch Branch aquifer of the Administrative/Manufacturing Area (A/M) at the Savannah River Site (SRS) in South Carolina, USA, incorporates six hydrostratigraphic units, surface soil units, and relevant hydrologic data. When this sensitivity map is compared with the distribution of the contaminant tetrachloroethylene (PCE), PCE is present within the Crouch Branch aquifer within an area classified as highly sensitive, even though the PCE was primarily released on the ground surface within areas classified with low aquifer sensitivity. This phenomenon is explained through analysis of the aquifer sensitivity map, the groundwater potentiometric surface maps, and the plume distributions within the area on a unit-by- unit basis. The results of this correlation show how the paths of the PCE plume are influenced by both the geology and the groundwater flow. ?? Springer-Verlag 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrogeology Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10040-006-0083-7","issn":"14312174","usgsCitation":"Rine, J., Shafer, J., Covington, E., and Berg, R.C., 2006, Testing of stack-unit/aquifer sensitivity analysis using contaminant plume distribution in the subsurface of Savannah River Site, South Carolina, USA: Hydrogeology Journal, v. 14, no. 8, p. 1620-1634, https://doi.org/10.1007/s10040-006-0083-7.","startPage":"1620","endPage":"1634","numberOfPages":"15","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":236331,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209662,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10040-006-0083-7"}],"country":"United 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Carolina\",\"nation\":\"USA \"}}]}","volume":"14","issue":"8","noUsgsAuthors":false,"publicationDate":"2006-08-18","publicationStatus":"PW","scienceBaseUri":"505ba5cbe4b08c986b320ca8","contributors":{"authors":[{"text":"Rine, J.M.","contributorId":53145,"corporation":false,"usgs":true,"family":"Rine","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":419107,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shafer, J.M.","contributorId":72995,"corporation":false,"usgs":true,"family":"Shafer","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":419108,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Covington, E.","contributorId":92031,"corporation":false,"usgs":true,"family":"Covington","given":"E.","email":"","affiliations":[],"preferred":false,"id":419109,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Berg, R. C.","contributorId":11673,"corporation":false,"usgs":true,"family":"Berg","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":419106,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028642,"text":"70028642 - 2006 - Pelagic seabird surveys in the Tuamotu and Gambier Archipelagos, French Polynesia","interactions":[],"lastModifiedDate":"2018-08-21T13:08:10","indexId":"70028642","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Pelagic seabird surveys in the Tuamotu and Gambier Archipelagos, French Polynesia","docAbstract":"We conducted pelagic seabird surveys in the Gambier and Tuamotu Archipelagos in the southeastern Pacific Ocean totaling 40 hours during 7-27 March 2003 and 22.5 hours during 22-27 July 2001. We used a 300-m-wide strip transect to estimate seabird density, and we estimated relative abundance of birds at all distances. In 2001, we observed a total of 326 birds of 18 species. The mean relative abundance of all birds was 14.3 ?? 3.1/h. Red-footed Booby Sula sula was the most abundant species (5.6/h), followed by White Tern Gygis alba (3.4/h), and Great Crested or Swift Tern Sterna bergii (1.2/h). In 2003, we observed a total of 1463 birds of 25 species. The mean relative abundance of all birds was 36.6 ?? 11.4/h and the mean density of all birds was 4.14 ?? 0.72/km2. Brown Noddy Anous stolidus was the most abundant species (17.6/h, 1.5/km2), followed by White Tern (8.4/h, 1.3/km2), and Red-footed Booby (4.6/h, 0.8/km2). Several globally or locally rare species were observed infrequently, including Phoenix Petrel Pterodroma alba (0.1/h, 0.03/km2). Distribution of birds was uneven, with long periods of no birds punctuated by occasional feeding flocks. In 2003, species diversity was related to length of observation period, with more species observed on longer segments (r2 = 0.58, F1.5 = 6.03, P = 0.05). Although the duration and extent of our surveys were limited, these data are valuable because little published information is available on pelagic seabirds in southeastern Polynesia.","language":"English","publisher":"Pacific Seabird Group","issn":"10183337","usgsCitation":"Vanderwerf, E.A., Pierce, R.J., Gill, V., Wragg, G., Raust, P., and Tibbitts, T.L., 2006, Pelagic seabird surveys in the Tuamotu and Gambier Archipelagos, French Polynesia: Marine Ornithology: Journal of Seabird Research and Conservation, v. 34, no. 1, p. 65-70.","productDescription":"6 p.","startPage":"65","endPage":"70","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":236538,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":337053,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.marineornithology.org/content/get.cgi?rn=684"}],"country":"France","state":"French Polynesia","otherGeospatial":"Gambier Archipelago, Tuamotu Archipelago","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -150,\n -10\n ],\n [\n -134,\n -10\n ],\n [\n -134,\n -25\n ],\n [\n -150,\n -25\n ],\n [\n -150,\n -10\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"34","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a763ce4b0c8380cd77fd7","contributors":{"authors":[{"text":"Vanderwerf, Eric A.","contributorId":104689,"corporation":false,"usgs":false,"family":"Vanderwerf","given":"Eric","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":418988,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pierce, Ray J.","contributorId":16635,"corporation":false,"usgs":false,"family":"Pierce","given":"Ray","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":418984,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gill, Verena A.","contributorId":140658,"corporation":false,"usgs":false,"family":"Gill","given":"Verena A.","affiliations":[{"id":6678,"text":"U.S. Fish and Wildlife Service, Alaska Maritime National Wildlife Refuge","active":true,"usgs":false}],"preferred":false,"id":418986,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wragg, Graham","contributorId":8272,"corporation":false,"usgs":false,"family":"Wragg","given":"Graham","email":"","affiliations":[],"preferred":false,"id":418983,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Raust, Philippe","contributorId":46288,"corporation":false,"usgs":false,"family":"Raust","given":"Philippe","email":"","affiliations":[],"preferred":false,"id":418987,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"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":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":false,"id":418985,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70028584,"text":"70028584 - 2006 - Predicting minimum habitat characteristics for the Indiana bat in the Champlain Valley","interactions":[],"lastModifiedDate":"2012-03-12T17:20:43","indexId":"70028584","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Predicting minimum habitat characteristics for the Indiana bat in the Champlain Valley","docAbstract":"Predicting potential habitat across a landscape for rare species is extremely challenging. However, partitioned Mahalanobis D2 methods avoid pitfalls commonly encountered when surveying rare species by using data collected only at known species locations. Minimum habitat requirements are then determined by examining a principal components analysis to find consistent habitat characteristics across known locations. We used partitioned D 2 methods to examine minimum habitat requirements of Indiana bats (Myotis sodalis) in the Champlain Valley of Vermont and New York, USA, across 7 spatial scales and map potential habitat for the species throughout the same area. We radiotracked 24 female Indiana bats to their roost trees and across their nighttime foraging areas to collect habitat characteristics at 7 spatial scales: 1) roost trees, 2) 0.1-ha circular plots surrounding the roost trees, 3) home ranges, and 4-7) 0.5-km, 1-km, 2-km, and 3-km buffers surrounding the roost tree. Roost trees (n = 50) typically were tall, dead, large-diameter trees with exfoliating bark, located at low elevations and close to water. Trees surrounding roosts typically were smaller in diameter and shorter in height, but they had greater soundness than the roost trees. We documented 14 home ranges in areas of diverse, patchy land cover types that were close to water with east-facing aspects. Across all landscape extents, area of forest within roost-tree buffers and the aspect across those buffers were the most consistent features. Predictive maps indicated that suitable habitat ranged from 4.7-8.1% of the area examined within the Champlain Valley. These habitat models further understanding of Indiana bat summer habitat by indicating minimum habitat characteristics at multiple scales and can be used to aid management decisions by highlighting potential habitat. Nonetheless, information on juvenile production and recruitment is lacking; therefore, assessments of Indiana bat habitat quality in the region are still incomplete.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Wildlife Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2193/0022-541X(2006)70[1228:PMHCFT]2.0.CO;2","issn":"0022541X","usgsCitation":"Watrous, K., Donovan, T., Mickey, R., Darling, S., Hicks, A., and Von Oettingen, S.L., 2006, Predicting minimum habitat characteristics for the Indiana bat in the Champlain Valley: Journal of Wildlife Management, v. 70, no. 5, p. 1228-1237, https://doi.org/10.2193/0022-541X(2006)70[1228:PMHCFT]2.0.CO;2.","startPage":"1228","endPage":"1237","numberOfPages":"10","costCenters":[],"links":[{"id":209992,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2193/0022-541X(2006)70[1228:PMHCFT]2.0.CO;2"},{"id":236776,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"70","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a81bde4b0c8380cd7b6d8","contributors":{"authors":[{"text":"Watrous, K.S.","contributorId":46291,"corporation":false,"usgs":true,"family":"Watrous","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":418720,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Donovan, T.M.","contributorId":91602,"corporation":false,"usgs":true,"family":"Donovan","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":418723,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mickey, R.M.","contributorId":65654,"corporation":false,"usgs":true,"family":"Mickey","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":418722,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Darling, S.R.","contributorId":25344,"corporation":false,"usgs":true,"family":"Darling","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":418718,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hicks, A.C.","contributorId":35109,"corporation":false,"usgs":true,"family":"Hicks","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":418719,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Von Oettingen, S. L.","contributorId":60836,"corporation":false,"usgs":true,"family":"Von Oettingen","given":"S.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":418721,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70028551,"text":"70028551 - 2006 - Influence of potentially confounding factors on sea urchin porewater toxicity tests","interactions":[],"lastModifiedDate":"2012-03-12T17:20:42","indexId":"70028551","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Influence of potentially confounding factors on sea urchin porewater toxicity tests","docAbstract":"The influence of potentially confounding factors has been identified as a concern for interpreting sea urchin porewater toxicity test data. The results from >40 sediment-quality assessment surveys using early-life stages of the sea urchin Arbacia punctulata were compiled and examined to determine acceptable ranges of natural variables such as pH, ammonia, and dissolved organic carbon on the fertilization and embryological development endpoints. In addition, laboratory experiments were also conducted with A. punctulata and compared with information from the literature. Pore water with pH as low as 6.9 is an unlikely contributor to toxicity for the fertilization and embryological development tests with A. punctulata. Other species of sea urchin have narrower pH tolerance ranges. Ammonia is rarely a contributing factor in pore water toxicity tests using the fertilization endpoint, but the embryological development endpoint may be influenced by ammonia concentrations commonly found in porewater samples. Therefore, ammonia needs to be considered when interpreting results for the embryological development test. Humic acid does not affect sea urchin fertilization at saturation concentrations, but it could have an effect on the embryological development endpoint at near-saturation concentrations. There was no correlation between sediment total organic carbon concentrations and porewater dissolved organic carbon concentrations. Because of the potential for many varying substances to activate parthenogenesis in sea urchin eggs, it is recommended that a no-sperm control be included with every fertilization test treatment. ?? 2006 Springer Science+Business Media, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Archives of Environmental Contamination and Toxicology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00244-006-0009-3","issn":"00904341","usgsCitation":"Carr, R., Biedenbach, J., and Nipper, M., 2006, Influence of potentially confounding factors on sea urchin porewater toxicity tests: Archives of Environmental Contamination and Toxicology, v. 51, no. 4, p. 573-579, https://doi.org/10.1007/s00244-006-0009-3.","startPage":"573","endPage":"579","numberOfPages":"7","costCenters":[],"links":[{"id":209989,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00244-006-0009-3"},{"id":236773,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-09-18","publicationStatus":"PW","scienceBaseUri":"505a3b67e4b0c8380cd624e2","contributors":{"authors":[{"text":"Carr, R.S.","contributorId":31353,"corporation":false,"usgs":true,"family":"Carr","given":"R.S.","affiliations":[],"preferred":false,"id":418563,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Biedenbach, J.M.","contributorId":108262,"corporation":false,"usgs":true,"family":"Biedenbach","given":"J.M.","affiliations":[],"preferred":false,"id":418564,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nipper, M.","contributorId":7047,"corporation":false,"usgs":true,"family":"Nipper","given":"M.","affiliations":[],"preferred":false,"id":418562,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028548,"text":"70028548 - 2006 - Nesting habitat of the Tule Greater White-fronted Goose Anser albifrons elgasi","interactions":[],"lastModifiedDate":"2018-08-20T20:05:28","indexId":"70028548","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Nesting habitat of the Tule Greater White-fronted Goose Anser albifrons elgasi","docAbstract":"This paper presents the first information on the availability and use of nesting habitat by the rare Tule Greater White-fronted Goose Anser albifrons elgasi. The breeding range was sampled by marking geese with radio transmitters on wintering and moulting areas, and tracking them to nest sites in Alaska. Nesting habitat was described at the scales of ecoregion, wetland ecosystem (National Wetlands Inventory (NWI) maps), vegetation type within wetland (Alaska Vegetation Classification (AVC) maps based on satellite imagery), and nest site. Tule Greater White-fronted Goose nests were located in boreal forest wetlands in the upper Cook Inlet Basin ecoregion. Nesting Tule Greater White-fronted Geese selected NWT Palustrine Seasonally Flooded wetlands and used NWI Palustrine Saturated wetlands in proportion to availability. Within these wetlands, Tule Greater White-fronted Geese used Needleleaf Forest, Low Shrub and Herbaceous (mostly graminoid) AVC classes for nest sites in proportion to availability Most (93%) Tule Greater White-fronted Geese nested > 75 m from open water ponds or lakes, and many nested in wetlands with little or no open water. Tule Greater White-fronted Geese nest only in a small breeding area near the most human-impacted area of the state, and continued development may limit the use of suitable nesting habitat.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wildfowl","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wildfowl & Wetlands Trust","publisherLocation":"Slimbridge, U.K.","issn":"09546324","usgsCitation":"Densmore, R., Ely, C.R., Bollinger, K., Kratzer, S., Udevitz, M.S., Fehringer, D., and Rothe, T., 2006, Nesting habitat of the Tule Greater White-fronted Goose Anser albifrons elgasi: Wildfowl, v. 56, p. 37-51.","productDescription":"15 p.","startPage":"37","endPage":"51","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":236708,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269434,"type":{"id":11,"text":"Document"},"url":"https://www.wwt.org.uk/userfiles/files/5_56_Densmore.pdf"}],"country":"United States","state":"Alaska","volume":"56","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a64c8e4b0c8380cd72a69","contributors":{"authors":[{"text":"Densmore, R.V.","contributorId":72953,"corporation":false,"usgs":true,"family":"Densmore","given":"R.V.","email":"","affiliations":[],"preferred":false,"id":418552,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ely, Craig R. 0000-0003-4262-0892 cely@usgs.gov","orcid":"https://orcid.org/0000-0003-4262-0892","contributorId":3214,"corporation":false,"usgs":true,"family":"Ely","given":"Craig","email":"cely@usgs.gov","middleInitial":"R.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":418555,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bollinger, K.S.","contributorId":85542,"corporation":false,"usgs":true,"family":"Bollinger","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":418553,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kratzer, S.","contributorId":103064,"corporation":false,"usgs":true,"family":"Kratzer","given":"S.","email":"","affiliations":[],"preferred":false,"id":418556,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Udevitz, Mark S. 0000-0003-4659-138X mudevitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4659-138X","contributorId":3189,"corporation":false,"usgs":true,"family":"Udevitz","given":"Mark","email":"mudevitz@usgs.gov","middleInitial":"S.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":418554,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fehringer, D.J.","contributorId":39999,"corporation":false,"usgs":true,"family":"Fehringer","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":418551,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rothe, T.C.","contributorId":10016,"corporation":false,"usgs":true,"family":"Rothe","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":418550,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70028487,"text":"70028487 - 2006 - A new probabilistic seismic hazard assessment for greater Tokyo","interactions":[],"lastModifiedDate":"2012-03-12T17:20:54","indexId":"70028487","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3047,"text":"Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences","active":true,"publicationSubtype":{"id":10}},"title":"A new probabilistic seismic hazard assessment for greater Tokyo","docAbstract":"Tokyo and its outlying cities are home to one-quarter of Japan's 127 million people. Highly destructive earthquakes struck the capital in 1703, 1855 and 1923, the last of which took 105 000 lives. Fuelled by greater Tokyo's rich seismological record, but challenged by its magnificent complexity, our joint Japanese-US group carried out a new study of the capital's earthquake hazards. We used the prehistoric record of great earthquakes preserved by uplifted marine terraces and tsunami deposits (17 M???8 shocks in the past 7000 years), a newly digitized dataset of historical shaking (10 000 observations in the past 400 years), the dense modern seismic network (300 000 earthquakes in the past 30 years), and Japan's GeoNet array (150 GPS vectors in the past 10 years) to reinterpret the tectonic structure, identify active faults and their slip rates and estimate their earthquake frequency. We propose that a dislodged fragment of the Pacific plate is jammed between the Pacific, Philippine Sea and Eurasian plates beneath the Kanto plain on which Tokyo sits. We suggest that the Kanto fragment controls much of Tokyo's seismic behaviour for large earthquakes, including the damaging 1855 M???7.3 Ansei-Edo shock. On the basis of the frequency of earthquakes beneath greater Tokyo, events with magnitude and location similar to the M??? 7.3 Ansei-Edo event have a ca 20% likelihood in an average 30 year period. In contrast, our renewal (time-dependent) probability for the great M??? 7.9 plate boundary shocks such as struck in 1923 and 1703 is 0.5% for the next 30 years, with a time-averaged 30 year probability of ca 10%. The resulting net likelihood for severe shaking (ca 0.9g peak ground acceleration (PGA)) in Tokyo, Kawasaki and Yokohama for the next 30 years is ca 30%. The long historical record in Kanto also affords a rare opportunity to calculate the probability of shaking in an alternative manner exclusively from intensity observations. This approach permits robust estimates for the spatial distribution of expected shaking, even for sites with few observations. The resulting probability of severe shaking is ca 35% in Tokyo, Kawasaki and Yokohama and ca 10% in Chiba for an average 30 year period, in good agreement with our independent estimate, and thus bolstering our view that Tokyo's hazard looms large. Given $1 trillion estimates for the cost of an M???7.3 shock beneath Tokyo, our probability implies a $13 billion annual probable loss. ?? 2006 The Royal Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1098/rsta.2006.1808","issn":"1364503X","usgsCitation":"Stein, R., Toda, S., Parsons, T., Grunewald, E., Blong, R., Sparks, S., Shah, H., and Kennedy, J., 2006, A new probabilistic seismic hazard assessment for greater Tokyo: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, v. 364, no. 1845, p. 1965-1988, https://doi.org/10.1098/rsta.2006.1808.","startPage":"1965","endPage":"1988","numberOfPages":"24","costCenters":[],"links":[{"id":477548,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://zenodo.org/record/1236084","text":"External Repository"},{"id":210438,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1098/rsta.2006.1808"},{"id":237353,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"364","issue":"1845","noUsgsAuthors":false,"publicationDate":"2006-06-30","publicationStatus":"PW","scienceBaseUri":"5059e4aee4b0c8380cd46831","contributors":{"authors":[{"text":"Stein, R.S.","contributorId":8875,"corporation":false,"usgs":true,"family":"Stein","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":418292,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Toda, S.","contributorId":102228,"corporation":false,"usgs":true,"family":"Toda","given":"S.","email":"","affiliations":[],"preferred":false,"id":418298,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parsons, T.","contributorId":48288,"corporation":false,"usgs":true,"family":"Parsons","given":"T.","email":"","affiliations":[],"preferred":false,"id":418296,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Grunewald, E.","contributorId":62820,"corporation":false,"usgs":true,"family":"Grunewald","given":"E.","email":"","affiliations":[],"preferred":false,"id":418297,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Blong, R.","contributorId":20141,"corporation":false,"usgs":true,"family":"Blong","given":"R.","email":"","affiliations":[],"preferred":false,"id":418293,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sparks, S.","contributorId":106694,"corporation":false,"usgs":true,"family":"Sparks","given":"S.","email":"","affiliations":[],"preferred":false,"id":418299,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Shah, H.","contributorId":35327,"corporation":false,"usgs":true,"family":"Shah","given":"H.","email":"","affiliations":[],"preferred":false,"id":418294,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kennedy, J.","contributorId":43559,"corporation":false,"usgs":true,"family":"Kennedy","given":"J.","affiliations":[],"preferred":false,"id":418295,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70028455,"text":"70028455 - 2006 - Fish community structure in freshwater karstic water bodies of the Sian Ka'an Reserve in the Yucatan peninsula, Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:20:41","indexId":"70028455","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1968,"text":"Ichthyological Exploration of Freshwaters","active":true,"publicationSubtype":{"id":10}},"title":"Fish community structure in freshwater karstic water bodies of the Sian Ka'an Reserve in the Yucatan peninsula, Mexico","docAbstract":"We evaluated the relationship between limnetic characteristics and fish community structure (based on species richness, abundance and individual size) in contrasting but interconnected inland aquatic habitats of freshwater karstic wetlands in the Yucatan peninsula, Mexico. In the western hemisphere, freshwater karstic wetlands are found in south-eastern Mexico, northern Belize, western Cuba, Andros Island, Bahamas and the Everglades of southern Florida. Only in the Everglades have fish communities been well described. Karstic wetlands are typically oligotrophic because calcium carbonate binds phosphorus, making it relatively unavailable for plants. Fourteen permanent and seasonally flooded water bodies were sampled in both wet and dry seasons in Sian Ka'an Biosphere Reserve, in the Mexican state of Quintana Roo. Water systems were divided by morphology in four groups: cenotes with vegetation (CWV), cenotes without vegetation (CNV), wetlands (WTL), and temporal cenotes (TPC). Discriminant analysis based on physical characteristics such as turbidity, temperature, depth and oxygen confirmed that these habitats differed in characteristics known to influence fish communities. A sample-based rarefaction test showed that species richness was significantly different between water systems groups, showing that WTL and CWV had higher richness values than CNV and TPC. The most abundant fish families, Poeciliidae, Cichlidae and Characidae, differed significantly in average size among habitats and seasons. Seasonal and inter-annual variation, reflecting temporal variation in rainfall, strongly influenced the environmental differences between shallow and deep habitats, which could be linked to fish size and life cycles. Five new records of species were found for the reserve, and one new record for Quintana Roo state. ?? 2006 by Verlag Dr. Friedrich Pfeil.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ichthyological Exploration of Freshwaters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"09369902","usgsCitation":"Zambrano, L., Vazquez-Dominguez, E., Garcia-Bedoya, D., Loftus, W., and Trexler, J., 2006, Fish community structure in freshwater karstic water bodies of the Sian Ka'an Reserve in the Yucatan peninsula, Mexico: Ichthyological Exploration of Freshwaters, v. 17, no. 3, p. 193-206.","startPage":"193","endPage":"206","numberOfPages":"14","costCenters":[],"links":[{"id":236827,"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":"505a108be4b0c8380cd53cf9","contributors":{"authors":[{"text":"Zambrano, L.","contributorId":17034,"corporation":false,"usgs":true,"family":"Zambrano","given":"L.","email":"","affiliations":[],"preferred":false,"id":418126,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vazquez-Dominguez, E.","contributorId":10600,"corporation":false,"usgs":true,"family":"Vazquez-Dominguez","given":"E.","affiliations":[],"preferred":false,"id":418125,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garcia-Bedoya, D.","contributorId":42771,"corporation":false,"usgs":true,"family":"Garcia-Bedoya","given":"D.","email":"","affiliations":[],"preferred":false,"id":418129,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Loftus, W.F.","contributorId":29363,"corporation":false,"usgs":true,"family":"Loftus","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":418128,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Trexler, J.C.","contributorId":23108,"corporation":false,"usgs":true,"family":"Trexler","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":418127,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70028426,"text":"70028426 - 2006 - Geology, geochronology, and geochemistry of basaltic flows of the Cat Hills, Cat Mesa, Wind Mesa, Cerro Verde, and Mesita Negra, central New Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:20:45","indexId":"70028426","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","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":"Geology, geochronology, and geochemistry of basaltic flows of the Cat Hills, Cat Mesa, Wind Mesa, Cerro Verde, and Mesita Negra, central New Mexico","docAbstract":"The geochronology, geochemistry, and isotopic compositions of basaltic flows erupted from the Cat Hills, Cat Mesa, Wind Mesa, Cerro Verde, and Mesita Negra volcanic centres in central New Mexico indicate that each of these lavas had unique origins and that the predominant mantle involved in their production was an ocean-island basalt type. The basalts from Cat Hills (0.11 Ma) and Cat Mesa (3.0 Ma) are similar in major and trace element composition, but differences in MgO contents and Pb isotopic values are attributed to a small involvement of a lower crustal component in the genesis of the Cat Mesa rocks. The Cerro Verde rock is comparable in age (0.32 Ma) to the Cat Hills lavas, but it is more radiogenic in Sr and Nd, has higher MgO contents, and has a lower La/Yb ratio. This composition is explained by the melting of an enriched mantle source, but the involvement of another crustal component cannot be disregarded. The Wind Mesa rock is characterized by similar age (4.01 Ma) and MgO contents, but it has enriched rare-earth element contents compared with the Cat Mesa samples. These are attributed to a difference in the degree of partial melting of the Cat Mesa source. The Mesita Negra rock (8.11 Ma) has distinctive geochemical and isotopic compositions that suggest a different enriched mantle and that large amounts of a crustal component were involved in generating this magma. These data imply a temporal shift in magma source regions and crustal involvement, and have been previously proposed for Rio Grande rift lavas. ?? 2006 NRC Canada.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Earth Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/E06-018","issn":"00084077","usgsCitation":"Maldonado, F., Budahn, J., Peters, L., and Unruh, D., 2006, Geology, geochronology, and geochemistry of basaltic flows of the Cat Hills, Cat Mesa, Wind Mesa, Cerro Verde, and Mesita Negra, central New Mexico: Canadian Journal of Earth Sciences, v. 43, no. 9, p. 1251-1268, https://doi.org/10.1139/E06-018.","startPage":"1251","endPage":"1268","numberOfPages":"18","costCenters":[],"links":[{"id":210137,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/E06-018"},{"id":236967,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a273be4b0c8380cd596d7","contributors":{"authors":[{"text":"Maldonado, F.","contributorId":90609,"corporation":false,"usgs":true,"family":"Maldonado","given":"F.","affiliations":[],"preferred":false,"id":418001,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Budahn, J. R. 0000-0001-9794-8882","orcid":"https://orcid.org/0000-0001-9794-8882","contributorId":83914,"corporation":false,"usgs":true,"family":"Budahn","given":"J. 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We examined the influences of tree cover at both proximate and landscape scales on grassland birds, a group of birds of high conservation concern, in the Sheyenne National Grassland in North Dakota, USA. The Grassland contains a diverse array of grassland and woodland habitats. We surveyed breeding birds on 2015 100 m long transect segments during 2002 and 2003. We modeled the occurrence of 19 species in relation to habitat features (percentages of grassland, woodland, shrubland, and wetland) within each 100-m segment and to tree cover within 200-1600 m of the segment. We used information-theoretic statistical methods to compare models and variables. At the proximate scales, tree cover was the most important variable, having negative influences on 13 species and positive influences on two species. In a comparison of multiple scales, models with only proximate variables were adequate for some species, but models combining proximate with landscape information were best for 17 of 19 species. Landscape-only models were rarely competitive. Combined models at the largest scales (800-1600 m) were best for 12 of 19 species. Seven species had best models including 1600-m landscapes plus proximate factors in at least one year. These were Wilson's Phalarope (Phalaropus tricolor), Sedge Wren (Cistothorus platensis), Field Sparrow (Spizella pusilla), Grasshopper Sparrow (Ammodramus savannarum), Bobolink (Dolychonix oryzivorus), Red-winged Blackbird (Agelaius phoeniceus), and Brown-headed Cowbird (Molothrus ater). These seven are small-bodied species; thus larger-bodied species do not necessarily respond most to the largest landscapes. Our findings suggest that birds respond to habitat features at a variety of scales. Models with only landscape-scale tree cover were rarely competitive, indicating that broad-scale modeling alone, such as that based solely on remotely sensed data, is likely to be inadequate in explaining species distributions. ?? 2006 by the Ecological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"10510761","usgsCitation":"Cunningham, M., and Johnson, D.H., 2006, Proximate and landscape factors influence grassland bird distributions: Ecological Applications, v. 16, no. 3, p. 1062-1075.","productDescription":"14 p.","startPage":"1062","endPage":"1075","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":237205,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -97.8057861328125,\n 46.29761098988109\n ],\n [\n -97.0697021484375,\n 46.29761098988109\n ],\n [\n -97.0697021484375,\n 46.581518465658014\n ],\n [\n -97.8057861328125,\n 46.581518465658014\n ],\n [\n -97.8057861328125,\n 46.29761098988109\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"16","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8fb6e4b0c8380cd7f904","contributors":{"authors":[{"text":"Cunningham, M.A.","contributorId":24552,"corporation":false,"usgs":true,"family":"Cunningham","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":417577,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, Douglas H. 0000-0002-7778-6641","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":70327,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":417578,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028172,"text":"70028172 - 2006 - Impact of eutrophication on shallow marine benthic foraminifers over the last 150 years in Osaka Bay, Japan","interactions":[],"lastModifiedDate":"2015-04-20T10:44:31","indexId":"70028172","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2673,"text":"Marine Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Impact of eutrophication on shallow marine benthic foraminifers over the last 150 years in Osaka Bay, Japan","docAbstract":"High-resolution foraminiferal analysis was conducted on a short sediment core from the inner part of Osaka Bay, Japan. Changes in foraminiferal assemblages were associated with eutrophication, bottom water hypoxia, and changes in red tide-causing algae. Before the 1920s, the calcareous species Ammonia beccarii, and the agglutinated species Eggerella advena and Trochammina hadai were rare, but calcareous foraminifers in general were abundant. Between the 1920s and 1940s, calcareous foraminifers decreased abruptly in abundance, while A. beccarii, E. advena and T. hadai increased in abundance. This faunal change corresponded in time to an increase in nutrients flowing in through the Yodo River, and bottom water hypoxia related to eutrophication. In the 1960s and 1970s, A. beccarii, E. advena and T. hadai further increased in abundance to become dominant, and many calcareous foraminifers nearly disappeared, corresponding to increasing bottom water hypoxia related to the rapid increase in discharged nutrients during the high economic growth period from 1953 to 1971. After the 1990s, A. beccarii decreased rapidly in abundance and E. advena and Uvigerinella glabra increased in abundance. The main components of red tide-causing algae changed from dinoflagellates to diatoms in the 1980s through 1990s, thus there was a change in the food supply to the benthos, which may have caused the increase in abundance of E. advena and U. glabra.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.marmicro.2006.06.001","issn":"03778398","usgsCitation":"Tsujimoto, A., Nomura, R., Yasuhara, M., Yamazaki, H., and Yoshikawa, S., 2006, Impact of eutrophication on shallow marine benthic foraminifers over the last 150 years in Osaka Bay, Japan: Marine Micropaleontology, v. 60, no. 4, p. 258-268, https://doi.org/10.1016/j.marmicro.2006.06.001.","productDescription":"11 p.","startPage":"258","endPage":"268","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":237300,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":210395,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marmicro.2006.06.001"}],"volume":"60","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a38bae4b0c8380cd61682","contributors":{"authors":[{"text":"Tsujimoto, Akira","contributorId":58448,"corporation":false,"usgs":true,"family":"Tsujimoto","given":"Akira","email":"","affiliations":[],"preferred":false,"id":416900,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nomura, Ritsuo","contributorId":16633,"corporation":false,"usgs":true,"family":"Nomura","given":"Ritsuo","email":"","affiliations":[],"preferred":false,"id":416897,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yasuhara, Moriaki","contributorId":37935,"corporation":false,"usgs":true,"family":"Yasuhara","given":"Moriaki","affiliations":[],"preferred":false,"id":416898,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yamazaki, Hideo","contributorId":40791,"corporation":false,"usgs":true,"family":"Yamazaki","given":"Hideo","email":"","affiliations":[],"preferred":false,"id":416899,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Yoshikawa, Shusaku","contributorId":97302,"corporation":false,"usgs":true,"family":"Yoshikawa","given":"Shusaku","email":"","affiliations":[],"preferred":false,"id":416901,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70028117,"text":"70028117 - 2006 - Survey design for detecting rare freshwater mussels","interactions":[],"lastModifiedDate":"2012-03-12T17:20:43","indexId":"70028117","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2564,"text":"Journal of the North American Benthological Society","onlineIssn":"1937-237X","printIssn":"0887-3593","active":true,"publicationSubtype":{"id":10}},"title":"Survey design for detecting rare freshwater mussels","docAbstract":"A common objective when surveying freshwater mussels is to detect the presence of rare populations. In certain situations, such as when endangered or threatened species are potentially in the area of a proposed impact, the survey should be designed to ensure a high probability of detecting species presence. Linking survey design to probability of detecting species presence has been done for quantitative surveys, but commonly applied designs that are based on timed searches have not made that connection. I propose a semiquantitative survey design that links search area and search efficiency to probability of detecting species presence. The survey can be designed to protect against failing to detect populations above a threshold abundance (or density). I illustrate the design for surveys to detect clubshell (Pluerobema clava) and northern riffleshell (Epioblasma torulosa rangiana) in the Allegheny River. Monte Carlo simulation indicated that the proposed survey design performs well under a range of spatial distributions and low densities (<0.05 m2) where search area is sufficient to ensure that the probability of detecting species presence is predicted to be ???0.85. ?? 2006 by The North American Benthological Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the North American Benthological Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1899/0887-3593(2006)25[701:SDFDRF]2.0.CO;2","issn":"08873593","usgsCitation":"Smith, D., 2006, Survey design for detecting rare freshwater mussels: Journal of the North American Benthological Society, v. 25, no. 3, p. 701-711, https://doi.org/10.1899/0887-3593(2006)25[701:SDFDRF]2.0.CO;2.","startPage":"701","endPage":"711","numberOfPages":"11","costCenters":[],"links":[{"id":210120,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1899/0887-3593(2006)25[701:SDFDRF]2.0.CO;2"},{"id":236946,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba288e4b08c986b31f791","contributors":{"authors":[{"text":"Smith, D. 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Fifty-eight enclosed stations were sampled in shoreline, nearshore reef, lagoon, backreef, forereef, and bank/shelf habitats with an ichthyocide (rotenone) at Buck Island Reef National Monument, St. Croix, U.S. Virgin Islands. Our samples included 55 families and 228 species, 60 previously unreported from St. Croix. Fish assemblages varied across habitat zones with the shoreline assemblage the most distinct. Only 8% of the species were present in all habitats. Multi-dimensional scaling plots of habitat characteristics and Bray-Curtis similarities of fish assemblages revealed similar patterns. Dominant and rare taxa are enumerated for each habitat sampled. Rotenone and visual census data are compared. While visual surveys accumulated more species per unit of effort, rotenone samples accumulated more species by area. Only 36% of the 228 species sampled with rotenone were visually detected, while 70% of the 115 species visually detected were also collected with rotenone. The use of rotenone is controversial but important for obtaining reasonably complete inventories of reef fishes. Misconceptions about rotenone and the advantages and limitations of alternative biodiversity assessment methods are discussed. ?? 2006 Rosenstiel School of Marine and Atmospheric Science of the University of Miami.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Marine Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00074977","usgsCitation":"Smith-Vaniz, W., Jelks, H., and Rocha, L., 2006, Relevance of cryptic fishes in biodiversity assessments: A case study at Buck Island Reef National Monument, St. Croix: Bulletin of Marine Science, v. 79, no. 1, p. 17-48.","startPage":"17","endPage":"48","numberOfPages":"32","costCenters":[],"links":[{"id":237294,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa6b5e4b0c8380cd84fdc","contributors":{"authors":[{"text":"Smith-Vaniz, W. 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Most tin is used as a protective coating or as an alloy with other metals in a diverse range of commercial and defense applications.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geotimes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"AGI","usgsCitation":"Carlin, J.F., 2005, Mineral of the month: tin: Geotimes, v. 2005, no. March, HTML Document.","productDescription":"HTML Document","costCenters":[{"id":432,"text":"National Minerals Information Center","active":true,"usgs":true}],"links":[{"id":271948,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":271947,"type":{"id":11,"text":"Document"},"url":"https://www.geotimes.org/mar05/resources.html#mineral"}],"volume":"2005","issue":"March","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"518a226de4b061e1bd5333d6","contributors":{"authors":[{"text":"Carlin, James F. 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