We evaluated the influences of several ecological, biological, and methodological factors on post-fledging survival of a shortgrass prairie bird, the Lark Bunting (Calamospiza melanocorys). We estimated daily post-fledging survival (n = 206, 82 broods) using radiotelemetry and color bands to track fledglings. Daily survival probabilities were best explained by drought intensity, time in season (quadratic trend), ages ≤3 d post-fledging, and rank given drought intensity. Drought intensity had a strong negative effect on survival. Rank was an important predictor of fledgling survival only during the severe drought of 2002 when the smallest fledglings had lower survival. Recently fledged young (ages ≤3 d post-fledging) undergoing the transition from nest to surrounding habitat experienced markedly lower survival, demonstrating the vulnerable nature of this time period. Survival was greater in mid and late season than early season, corresponding to our assumptions of food availability. Neither mark type nor sex of attending parent influenced survival. The model-averaged product of the 22-d survival calculated using mean rank and median value of time in season was 0.360 ± 0.08 in 2001 and 0.276 ± 0.08 in 2002. Survival estimates that account for age, condition of young, ecological conditions, and other factors are important for parameterization of realistic population models. Biologists using population growth models to elucidate mechanisms of population declines should attempt to estimate species-specific of post-fledging survival rather than use generalized estimates.
","language":"English","publisher":"Wiley","doi":"10.1890/04-1922","usgsCitation":"Yackel Adams, A., Skagen, S., and Savidge, J.A., 2006, Modeling post-fledging survival of lark buntings in response to ecological and biological factors: Ecology, v. 87, no. 1, p. 178-188, https://doi.org/10.1890/04-1922.","productDescription":"11 p.","startPage":"178","endPage":"188","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":134182,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"87","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699845","contributors":{"authors":[{"text":"Yackel Adams, A. A. 0000-0002-7044-8447","orcid":"https://orcid.org/0000-0002-7044-8447","contributorId":16792,"corporation":false,"usgs":true,"family":"Yackel Adams","given":"A. A.","affiliations":[],"preferred":false,"id":322433,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Skagen, S. K. 0000-0002-6744-1244","orcid":"https://orcid.org/0000-0002-6744-1244","contributorId":31348,"corporation":false,"usgs":true,"family":"Skagen","given":"S. K.","affiliations":[],"preferred":false,"id":322434,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Savidge, J. A.","contributorId":36078,"corporation":false,"usgs":false,"family":"Savidge","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":322435,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":76896,"text":"sir20065065 - 2006 - Ecology of bonytail and razorback sucker and the role of off-channel habitats in their recovery","interactions":[],"lastModifiedDate":"2016-05-27T13:29:46","indexId":"sir20065065","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-5065","title":"Ecology of bonytail and razorback sucker and the role of off-channel habitats in their recovery","docAbstract":"The bonytail and razorback sucker are two of four endangered mainstem fishes found in the Colorado River. Unlike the Colorado pikeminnow and humpback chub, wild populations of the bonytail and razorback sucker are either extirpated from the mainstem river or are nearly so. Agencies are aggressively stocking these fish and while repatriated fish spawn, their young are rapidly eaten by introduced predators. A decade of predator removal efforts has proved ineffective in restoring natural recruitment. Today, the presence of these species is totally dependent on stocking, suggesting both species are worse off today than when recovery efforts began nearly two decades ago.
\nIn contrast, both species readily produce young in ponds where nonnative predators are absent. Evidence shows they evolved with the ability to spawn in both flowing and standing water, which suggests isolated oxbow communities may have been an essential feature in their evolution and survival strategy.
\nSustainable populations during the past few decades have only occurred in isolated ponds devoid of predatory nonnative fish. Efforts to force recovery in the main channel river continue to fail due to the presence of nonnative predators that may be economically important recreational species. Off-channel sanctuaries provide research and management opportunities on a scale that are both biologically and economically realistic. Effective management of these species in small habitats appears to be the most logical approach to advance recovery in larger river reaches.
\nThis report presents new findings, updates existing information, and describes what may well represent the only practical approach to these species’ conservation and recovery. Chapter 1 provides an overview of the Colorado River system from its origin to the Gulf of California and includes a description of propagation and stocking programs which have not been described elsewhere. The report also updates what is known or suspected on the life history and ecology of these two endangered fishes. Chapter 2 describes the successful recruitment of both species at an oxbow pond on the Cibola National Wildlife Refuge in Arizona, discusses factors that contribute to completion of the life cycle of both fishes, and provides recommendations for future management of the impoundment. Chapter 3 provides historical evidence that oxbow habitats were formed historically in years of high runoff and the importance of these habitats for survival and evolution of native fishes. It also summarizes key features of habitats that can serve as sanctuaries that enhance early survival of the endangered fishes and allow the fish to complete their entire life cycles.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20065065","usgsCitation":"Mueller, G.A., 2006, Ecology of bonytail and razorback sucker and the role of off-channel habitats in their recovery: U.S. Geological Survey Scientific Investigations Report 2006-5065, viii, 64 p., https://doi.org/10.3133/sir20065065.","productDescription":"viii, 64 p.","numberOfPages":"74","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":194605,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20065065.PNG"},{"id":320226,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2006/5065/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ee4b07f02db627ab0","contributors":{"authors":[{"text":"Mueller, Gordon A.","contributorId":86420,"corporation":false,"usgs":true,"family":"Mueller","given":"Gordon","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":288111,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":77648,"text":"fs20063088 - 2006 - \"HIP\" new software: The Hydroecological Integrity Assessment Process","interactions":[],"lastModifiedDate":"2018-01-01T16:52:26","indexId":"fs20063088","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-3088","title":"\"HIP\" new software: The Hydroecological Integrity Assessment Process","docAbstract":"Managing rivers and streams to maintain healthy aquatic ecosystems is a challenge for resource managers across the country. Demand for competing uses of water resources grows with escalating development, increasing recreational use, and the vagaries of climate and weather. For many species of concern, instream flow and associated water quality are critical for survival. Balancing ecosystem needs with proposed changes in flow regimes requires a process managers can use to determine the ecological and hydrological effects of changes in streamflow.
\nCenter (FORT) have developed the Hydroecological Integrity Assessment Process (HIP) and a suite of software tools for conducting a hydrologic classification of streams, addressing instream flow needs, and assessing past and proposed hydrologic alterations on streamflow and other ecosystem components. The HIP recognizes that streamflow is strongly related to many critical physiochemical components of rivers, such as dissolved oxygen, channel geomorphology, and habitats. Streamflow is considered a “master variable” that limits the distribution, abundance, and diversity of many aquatic plant and animal species.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20063088","usgsCitation":"Henriksen, J., and Wilson, J.T., 2006, \"HIP\" new software: The Hydroecological Integrity Assessment Process: U.S. Geological Survey Fact Sheet 2006-3088, 2 p., https://doi.org/10.3133/fs20063088.","productDescription":"2 p.","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":121012,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_2006_3088.jpg"},{"id":320221,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2006/3088/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4900e4b0b290850eecc0","contributors":{"authors":[{"text":"Henriksen, Jim","contributorId":23638,"corporation":false,"usgs":true,"family":"Henriksen","given":"Jim","affiliations":[],"preferred":false,"id":288829,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Juliette T.","contributorId":86439,"corporation":false,"usgs":true,"family":"Wilson","given":"Juliette","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":288830,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1015168,"text":"1015168 - 2006 - The importance of adjusting for trip purpose in regional economic analyses of tourist destinations","interactions":[],"lastModifiedDate":"2017-12-31T14:05:23","indexId":"1015168","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3606,"text":"Tourism Economics","active":true,"publicationSubtype":{"id":10}},"title":"The importance of adjusting for trip purpose in regional economic analyses of tourist destinations","docAbstract":"This paper investigates the empirical importance of distinguishing visitors and their expenditures by trip purpose when estimating the tourism effects of a national park on a local economy. Accounting for trip purpose is quite important when there are two or more nearby major attractions in the same geographical area. This applies to the author's case study of Grand Teton and Yellowstone National Parks in the State of Wyoming, and also to other areas, such as the State of Utah's Bryce and Zion National Parks or amusement parks in the Orlando area in Florida. The authors illustrate the various types of survey questions and methods for correcting for trip purpose. In the case study, it would be quite misleading to attribute all spending by visitors to Grand Teton National Park (GTNP) in the town of Jackson, Wyoming, solely to GTNP because this would overstate employment actually attributable to the park by 3,455 jobs, or 22%. In turn, this overestimates the dependence of jobs in the Jackson economy on GTNP by 15%, incorrectly estimating it at 75% rather than the sounder figure of 60% of total jobs.
","language":"English","publisher":"SAGE Journals","doi":"10.5367/000000006776387105","usgsCitation":"Loomis, J., and Caughlan, L., 2006, The importance of adjusting for trip purpose in regional economic analyses of tourist destinations: Tourism Economics, v. 12, no. 1, p. 33-43, https://doi.org/10.5367/000000006776387105.","productDescription":"11 p.","startPage":"33","endPage":"43","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":133333,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-03-01","publicationStatus":"PW","scienceBaseUri":"4f4e4a85e4b07f02db64d876","contributors":{"authors":[{"text":"Loomis, J.","contributorId":41785,"corporation":false,"usgs":true,"family":"Loomis","given":"J.","email":"","affiliations":[],"preferred":false,"id":322406,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Caughlan, L.","contributorId":38498,"corporation":false,"usgs":true,"family":"Caughlan","given":"L.","affiliations":[],"preferred":false,"id":322405,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1015175,"text":"1015175 - 2006 - The effect of multiple stressors on salt marsh end-of-season biomass","interactions":[],"lastModifiedDate":"2018-01-01T15:40:16","indexId":"1015175","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1584,"text":"Estuaries and Coasts","active":true,"publicationSubtype":{"id":10}},"title":"The effect of multiple stressors on salt marsh end-of-season biomass","docAbstract":"It is becoming more apparent that commonly used statistical methods (e.g. analysis of variance and regression) are not the best methods for estimating limiting relationships or stressor effects. A major challenge of estimating the effects associated with a measured subset of limiting factors is to account for the effects of unmeasured factors in an ecologically realistic matter. We used quantile regression to elucidate multiple stressor effects on end-of-season biomass data from two salt marsh sites in coastal Louisiana collected for 18 yr. Stressor effects evaluated based on available data were flooding, salinity air temperature, cloud cover, precipitation deficit, grazing by muskrat, and surface water nitrogen and phosphorus. Precipitation deficit combined with surface water nitrogen provided the best two-parameter model to explain variation in the peak biomass with different slopes and intercepts for the two study sites. Precipitation deficit, cloud cover, and temperature were significantly correlated with each other. Surface water nitrogen was significantly correlated with surface water phosphorus and muskrat density. The site with the larger duration of flooding showed reduced peak biomass, when cloud cover and surface water nitrogen were optimal. Variation in the relatively low salinity occurring in our study area did not explain any of the variation in Spartina alterniflora biomass.
","language":"English","publisher":"Springer","doi":"10.1007/BF02782001","usgsCitation":"Visser, J., Sasser, C., and Cade, B., 2006, The effect of multiple stressors on salt marsh end-of-season biomass: Estuaries and Coasts, v. 29, no. 2, p. 331-342, https://doi.org/10.1007/BF02782001.","productDescription":"12 p.","startPage":"331","endPage":"342","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":133393,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db66764b","contributors":{"authors":[{"text":"Visser, J.M.","contributorId":23900,"corporation":false,"usgs":true,"family":"Visser","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":322430,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sasser, C.E.","contributorId":81067,"corporation":false,"usgs":true,"family":"Sasser","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":322432,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cade, B.S.","contributorId":47315,"corporation":false,"usgs":true,"family":"Cade","given":"B.S.","affiliations":[],"preferred":false,"id":322431,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":77639,"text":"fs20063078 - 2006 - The Conservation Reserve Program: Planting for the future","interactions":[],"lastModifiedDate":"2017-10-20T10:10:16","indexId":"fs20063078","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-3078","title":"The Conservation Reserve Program: Planting for the future","docAbstract":"Proceedings are now available from a scientific and technical forum held to review ongoing and planned research, identify lessons learned, and determine future research needs for the purpose of developing a rigorous scientific basis for future CRP policy discussions.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20063078","usgsCitation":"Hyberg, S., and Allen, A., 2006, The Conservation Reserve Program: Planting for the future: U.S. Geological Survey Fact Sheet 2006-3078, 1 p., https://doi.org/10.3133/fs20063078.","productDescription":"1 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true},{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":121251,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_2006_3078.jpg"},{"id":8387,"rank":3,"type":{"id":22,"text":"Related Work"},"url":"https://pubs.usgs.gov/usgspubs/sir/sir20055145","text":"The Conservation Reserve Program: planting for the future. Proceedings of a National Conference, Fort Collins, Colorado, June 6-9, 2004","linkFileType":{"id":5,"text":"html"},"linkHelpText":"Scientific Investigations Report 2005-5145"},{"id":320230,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2006/3078/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acee4b07f02db67fe8d","contributors":{"authors":[{"text":"Hyberg, Skip","contributorId":90407,"corporation":false,"usgs":true,"family":"Hyberg","given":"Skip","email":"","affiliations":[],"preferred":false,"id":288814,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Allen, Arthur 0000-0002-6061-9396","orcid":"https://orcid.org/0000-0002-6061-9396","contributorId":70870,"corporation":false,"usgs":true,"family":"Allen","given":"Arthur","email":"","affiliations":[],"preferred":false,"id":288813,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":76911,"text":"sir20065143 - 2006 - Evaluation of evidence supporting the effectiveness of desert tortoise recovery actions","interactions":[],"lastModifiedDate":"2012-02-02T00:14:09","indexId":"sir20065143","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2006-5143","title":"Evaluation of evidence supporting the effectiveness of desert tortoise recovery actions","docAbstract":"As a federally threatened species, the desert tortoise's (Gopherus agassizii) recovery is required under the Endangered Species Act (ESA). According to the criteria established by the Desert Tortoise Recovery Plan (U.S. Fish and Wildlife Service 1994) for delisting the tortoise from ESA protection, the species\r\nas a whole will be considered recovered when tortoises have exhibited a statistically significant upward trend for at least one tortoise generation (25 years), enough habitat is protected to allow persistence, provisions are in place to maintain discrete population growth rates at or above 1.0, regulatory measures are in place to ensure continued management of tortoise habitat, and there is no longer reason to believe that the species will require ESA protection in the future. Just as species extinction can be thought of as the cumulative extinction of all populations, species recovery can be thought of as recovery of constituent populations; management efforts for recovery generally are implemented and assessed at the population level. A recent review of the Desert Tortoise Recovery Plan, including an exhaustive literature search, has been compiled by the Desert Tortoise Recovery Plan Assessment Committee (Tracy et al. 2004).","language":"English","doi":"10.3133/sir20065143","usgsCitation":"Boarman, W.I., and Kristan, W.B., 2006, Evaluation of evidence supporting the effectiveness of desert tortoise recovery actions: U.S. Geological Survey Scientific Investigations Report 2006-5143, vii, 27 p., https://doi.org/10.3133/sir20065143.","productDescription":"vii, 27 p.","startPage":"0","endPage":"0","numberOfPages":"34","additionalOnlineFiles":"Y","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":191978,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8070,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2006/5143/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4be4b07f02db6254da","contributors":{"authors":[{"text":"Boarman, William I.","contributorId":51683,"corporation":false,"usgs":true,"family":"Boarman","given":"William","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":288144,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kristan, William B.","contributorId":83623,"corporation":false,"usgs":true,"family":"Kristan","given":"William","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":288145,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1015122,"text":"1015122 - 2006 - A permutation test for quantile regression","interactions":[],"lastModifiedDate":"2017-12-30T10:33:35","indexId":"1015122","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2151,"text":"Journal of Agricultural, Biological, and Environmental Statistics","active":true,"publicationSubtype":{"id":10}},"title":"A permutation test for quantile regression","docAbstract":"A drop in dispersion, F-ratio like, permutation test (D) for linear quantile regression estimates (0≤τ≤1) had relative power ≥1 compared to quantile rank score tests (T) for hypotheses on parameters other than the intercept. Power was compared for combinations of sample sizes (n=20−300) and quantiles (τ=0.50−0.99) where both tests maintained valid Type I error rates in simulations with p=2 and 6 parameters in homogeneous and heterogeneous error models. The D test required two modifications of permuting residuals from null, reduced parameter models to maintain correct Type I error rates when null models were constrained through the origin or included multiple parameters. A double permutation scheme was used when null models were constrained through the origin and all but 1 of the zero residuals were deleted for null models with multiple parameters. Although there was considerable overlap in sample size, quantiles, and hypotheses where both the D and rank score tests maintained correct Type I error rates, we identified regions at smaller n and more extreme quantiles where one or the other maintained better error rates. Confidence intervals on parameters for an ecological application relating Lahontan cutthroat trout densities to stream channel width:depth were estimated by test inversion, demonstrating a smoother pattern of slightly narrower intervals across quantiles than those provided by the rank score test.
","language":"English","publisher":"Springer","doi":"10.1198/108571106X96835","usgsCitation":"Cade, B.S., and Richards, J.D., 2006, A permutation test for quantile regression: Journal of Agricultural, Biological, and Environmental Statistics, v. 11, no. 1, p. 106-126, https://doi.org/10.1198/108571106X96835.","productDescription":"21 p.","startPage":"106","endPage":"126","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":131759,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1fe4b07f02db6ab830","contributors":{"authors":[{"text":"Cade, Brian S. 0000-0001-9623-9849 cadeb@usgs.gov","orcid":"https://orcid.org/0000-0001-9623-9849","contributorId":1278,"corporation":false,"usgs":true,"family":"Cade","given":"Brian","email":"cadeb@usgs.gov","middleInitial":"S.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":322233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richards, Jon D.","contributorId":181580,"corporation":false,"usgs":false,"family":"Richards","given":"Jon","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":322232,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028082,"text":"70028082 - 2006 - Effectiveness of spinning-wing decoys varies among dabbling duck species and locations","interactions":[],"lastModifiedDate":"2017-07-02T08:48:08","indexId":"70028082","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":"Effectiveness of spinning-wing decoys varies among dabbling duck species and locations","docAbstract":"Spinning-wing decoys are strong attractants to ducks and inc rease kill rates over traditional decoying methods. However, it is unknown whether all duck species are attracted similarly to spinning-wing decoys and whether the effectiveness of these decoys changes with latitude. We examined the effectiveness of spinning-wing decoys for 9 species of dabbling ducks during 545 experimental hunts in California (1999-2000), Minnesota (2002), Manitoba (2001-2002), Nebraska (2000-2002), Missouri (2000-2001), and Arkansas (2001-2003). During each experimental hunt, we systematically alternated between 2 paired decoy treatments every 15-30 min (depending on study site): traditional decoys only and traditional decoys with a spinning-wing decoy. Overall, 70.2% (n=1,925) of dabbling ducks were harvested (shot and retrieved) when spinning-wing decoys were turned on, ranging from 63.6% (n=187) in Missouri to 76.4% (n=356) in Minnesota. Effectiveness of spinning-wing decoys increased with latitude of study sites. Proportions of ducks shot when spinning-wing decoys were turned on differed among species, from a low of 50.0% (n=8) for cinnamon teal (Anas cyanoptera) to a high of 79.0% (n=119) for American wigeon (A. americana). The probability of being shot when spinning-wing decoys were turned on increased with annual survival rates among species; for example, spinning-wing decoys were more effective for American wigeon and mallard (A. platyrhynchos) than they were for cinnamon teal and American green-winged teal (A. crecca). Effectiveness of spinning-wing decoys did not differ consistently by age or sex of harvested ducks. Our results indicate that the effectiveness of spinning-wing decoys differs among duck species and changes with latitude; thus, consideration of these effects may be warranted when setting harvest regulations and methods of take.","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[799:EOSDVA]2.0.CO;2","issn":"0022541X","usgsCitation":"Ackerman, J., Eadie, J., Szymanski, M., Caswell, J., Vrtiska, M.P., Raedeke, A.H., Checkett, J., Afton, A., Moore, T., Caswell, F.D., Walters, R.A., Humburg, D., and Yee, J., 2006, Effectiveness of spinning-wing decoys varies among dabbling duck species and locations: Journal of Wildlife Management, v. 70, no. 3, p. 799-804, https://doi.org/10.2193/0022-541X(2006)70[799:EOSDVA]2.0.CO;2.","startPage":"799","endPage":"804","numberOfPages":"6","costCenters":[],"links":[{"id":236908,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":210091,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2193/0022-541X(2006)70[799:EOSDVA]2.0.CO;2"}],"volume":"70","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0640e4b0c8380cd51190","contributors":{"authors":[{"text":"Ackerman, Joshua T. 0000-0002-3074-8322 jackerman@usgs.gov","orcid":"https://orcid.org/0000-0002-3074-8322","contributorId":147078,"corporation":false,"usgs":true,"family":"Ackerman","given":"Joshua T.","email":"jackerman@usgs.gov","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":false,"id":416464,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eadie, J.M.","contributorId":8034,"corporation":false,"usgs":true,"family":"Eadie","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":416454,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Szymanski, M.L.","contributorId":8662,"corporation":false,"usgs":true,"family":"Szymanski","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":416455,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Caswell, J.H.","contributorId":12236,"corporation":false,"usgs":true,"family":"Caswell","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":416456,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Vrtiska, Mark P.","contributorId":54008,"corporation":false,"usgs":true,"family":"Vrtiska","given":"Mark","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":416460,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Raedeke, Andrew H.","contributorId":94083,"corporation":false,"usgs":true,"family":"Raedeke","given":"Andrew","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":416466,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Checkett, J.M.","contributorId":84940,"corporation":false,"usgs":true,"family":"Checkett","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":416463,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Afton, A. D.","contributorId":83467,"corporation":false,"usgs":true,"family":"Afton","given":"A. D.","affiliations":[],"preferred":false,"id":416462,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Moore, T.G.","contributorId":23094,"corporation":false,"usgs":true,"family":"Moore","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":416457,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Caswell, F. Dale","contributorId":57403,"corporation":false,"usgs":true,"family":"Caswell","given":"F.","email":"","middleInitial":"Dale","affiliations":[],"preferred":false,"id":416461,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Walters, R. A.","contributorId":34174,"corporation":false,"usgs":true,"family":"Walters","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":416459,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Humburg, D.D.","contributorId":87101,"corporation":false,"usgs":true,"family":"Humburg","given":"D.D.","affiliations":[],"preferred":false,"id":416465,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Yee, J.L.","contributorId":25496,"corporation":false,"usgs":true,"family":"Yee","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":416458,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70028063,"text":"70028063 - 2006 - Influence of propagule flotation longevity and light availability on establishment of introduced mangrove species in Hawai'i","interactions":[],"lastModifiedDate":"2019-06-18T12:29:07","indexId":"70028063","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2990,"text":"Pacific Science","active":true,"publicationSubtype":{"id":10}},"title":"Influence of propagule flotation longevity and light availability on establishment of introduced mangrove species in Hawai'i","docAbstract":"Although no mangrove species are native to the Hawaiian Archipelago, both Rbizopbora mangle and Bruguiera sexangula were introduced and have become naturalized. Rbizopbora mangle has spread to almost every major Hawaiian island, but B. sexangula has established only on O'ahu, where it was intentionally introduced. To examine the possibility that differences in propagule characteristics maintain these patterns of distribution, we first reviewed the literature on surface currents around the Hawaiian Islands, which suggest that propagules ought to disperse frequently from one island to another within 60. days. We then tested the ability of propagules of the two species to float for periods of up to 63 days and to establish under two light intensities. On average, R. mangle propagules floated for longer periods than those of B. sexangula, but at least some propagules of both species floated for a full 60 days and then rooted and grew for 4 months under relatively dense shade. A large percentage (???83%) of R. mangle propagules would be expected to float beyond 60 days, and approximately 10% of B. sexangula propagules also would have remained afloat. Therefore, it seems likely that factors other than flotation ability are responsible for the failure of B. sexangula to become established on other Hawaiian islands.
","language":"English","publisher":"University of Hawaii Press","doi":"10.1353/psc.2006.0015","issn":"00308870","usgsCitation":"Allen, J.A., and Krauss, K., 2006, Influence of propagule flotation longevity and light availability on establishment of introduced mangrove species in Hawai'i: Pacific Science, v. 60, no. 3, p. 367-376, https://doi.org/10.1353/psc.2006.0015.","productDescription":"10 p.","startPage":"367","endPage":"376","numberOfPages":"10","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":477566,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10125/22572","text":"External Repository"},{"id":237154,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"60","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3b69e4b0c8380cd624f7","contributors":{"authors":[{"text":"Allen, J. A.","contributorId":82644,"corporation":false,"usgs":false,"family":"Allen","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":416384,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Krauss, K. W. 0000-0003-2195-0729","orcid":"https://orcid.org/0000-0003-2195-0729","contributorId":19517,"corporation":false,"usgs":true,"family":"Krauss","given":"K. W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":416383,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70028078,"text":"70028078 - 2006 - Current subsidence rates due to compaction of Holocene sediments in southern Louisiana","interactions":[],"lastModifiedDate":"2018-02-02T10:51:19","indexId":"70028078","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Current subsidence rates due to compaction of Holocene sediments in southern Louisiana","docAbstract":"Relative contributions of geologic and anthropogenic processes to subsidence of southern Louisiana are vigorously debated. Of these, shallow sediment compaction is often considered dominant, although this has never been directly observed or effectively demonstrated. Quantitative understanding of subsidence is important for predicting relative sea level rise, storm surge flooding due to hurricanes, and for successful wetland restoration. Despite many shallow borings, few appropriate stratigraphic and geotechnical data are available for site-specific calculations. We overcome this by determining present compaction rates from Monte Carlo simulations of the incremental sedimentation and compaction of stratigraphies typical of the Holocene of southern Louisiana. This approach generates distributions of present compaction rates that are not expected to exceed 5 mm/yr, but may locally. Locations with present subsidence rates greater than the predicted maximum probable shallow compaction rates are likely influenced by additional processes.
","language":"English","publisher":"AGU Publications","doi":"10.1029/2006GL026300","usgsCitation":"Meckel, T., ten Brink, U., and Williams, S., 2006, Current subsidence rates due to compaction of Holocene sediments in southern Louisiana: Geophysical Research Letters, v. 33, no. 11, Article L11403; 5 p., https://doi.org/10.1029/2006GL026300.","productDescription":"Article L11403; 5 p.","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":486881,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006gl026300","text":"Publisher Index Page"},{"id":236837,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -92.25769042968749,\n 28.7965462417692\n ],\n [\n -88.9398193359375,\n 28.7965462417692\n ],\n [\n -88.9398193359375,\n 31.034108344903512\n ],\n [\n -92.25769042968749,\n 31.034108344903512\n ],\n [\n -92.25769042968749,\n 28.7965462417692\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"33","issue":"11","noUsgsAuthors":false,"publicationDate":"2006-06-14","publicationStatus":"PW","scienceBaseUri":"5059fd14e4b0c8380cd4e60f","contributors":{"authors":[{"text":"Meckel, T.A.","contributorId":91676,"corporation":false,"usgs":true,"family":"Meckel","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":416433,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"ten Brink, Uri S. 0000-0001-6858-3001 utenbrink@usgs.gov","orcid":"https://orcid.org/0000-0001-6858-3001","contributorId":127560,"corporation":false,"usgs":true,"family":"ten Brink","given":"Uri S.","email":"utenbrink@usgs.gov","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":416431,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Williams, S.J.","contributorId":85203,"corporation":false,"usgs":true,"family":"Williams","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":416432,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028036,"text":"70028036 - 2006 - Denali fault slip rates and Holocene-late Pleistocene kinematics of central Alaska","interactions":[],"lastModifiedDate":"2018-05-20T12:54:41","indexId":"70028036","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Denali fault slip rates and Holocene-late Pleistocene kinematics of central Alaska","docAbstract":"The Denali fault is the principal intracontinental strike-slip fault accommodating deformation of interior Alaska associated with the Yakutat plate convergence. We obtained the first quantitative late Pleistocene-Holocene slip rates on the Denali fault system from dating offset geomorphic features. Analysis of cosmogenic 10Be concentrations in boulders (n = 27) and sediment (n = 13) collected at seven sites, offset 25-170 m by the Denali and Totschunda faults, gives average ages that range from 2.4 ± 0.3 ka to 17.0 ± 1.8 ka. These offsets and ages yield late Pleistocene-Holocene average slip rates of 9.4 ± 1.6, 12.1 ± 1.7, and 8.4 ± 2.2 mm/yr-1 along the western, central, and eastern Denali fault, respectively, and 6.0 ± 1.2 mm/yr-1 along the Totschunda fault. Our results suggest a westward decrease in the mean Pleistocene-Holocene slip rate. This westward decrease likely results from partitioning of slip from the Denali fault system to thrust faults to the north and west. 2006 Geological Society of America.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/G22361.1","issn":"00917613","usgsCitation":"Matmon, A., Schwartz, D.P., Haeussler, P.J., Finkel, R., Lienkaemper, J.J., Stenner, H.D., and Dawson, T.E., 2006, Denali fault slip rates and Holocene-late Pleistocene kinematics of central Alaska: Geology, v. 34, no. 8, p. 645-648, https://doi.org/10.1130/G22361.1.","productDescription":"4 p.","startPage":"645","endPage":"648","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":237257,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":210361,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G22361.1"}],"volume":"34","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe94e4b0c8380cd4edde","contributors":{"authors":[{"text":"Matmon, A.","contributorId":14983,"corporation":false,"usgs":true,"family":"Matmon","given":"A.","email":"","affiliations":[],"preferred":false,"id":416233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schwartz, David P. 0000-0001-5193-9200","orcid":"https://orcid.org/0000-0001-5193-9200","contributorId":52968,"corporation":false,"usgs":true,"family":"Schwartz","given":"David","middleInitial":"P.","affiliations":[],"preferred":false,"id":416235,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":416237,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Finkel, R.","contributorId":103028,"corporation":false,"usgs":true,"family":"Finkel","given":"R.","email":"","affiliations":[],"preferred":false,"id":416239,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lienkaemper, J. J.","contributorId":71947,"corporation":false,"usgs":true,"family":"Lienkaemper","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":416236,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stenner, Heidi D.","contributorId":35868,"corporation":false,"usgs":true,"family":"Stenner","given":"Heidi","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":416234,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Dawson, T. E.","contributorId":84537,"corporation":false,"usgs":true,"family":"Dawson","given":"T.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":416238,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70175728,"text":"70175728 - 2006 - Future for polar bears in a declining sea ice environment: What do we know?","interactions":[],"lastModifiedDate":"2016-08-18T15:08:24","indexId":"70175728","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Future for polar bears in a declining sea ice environment: What do we know?","docAbstract":"During an April 22, 2006, interview on the CBC radio program “The House,” Tim Flannery, author of the recent book “The Weathermakers,” stated, “Projections of the polar bear specialists are that by about 2030, around that date, the species will be extinct because of global warming induced changes in the Arctic sea ice.” That statement was followed on May 4th by quotations in the Toronto Globe and Mail from Dr. Mitch Taylor, a polar bear researcher in Nunavut, Canada, claiming, “polar bears have survived both warmer times and colder times than these,” that “nothing has melted the Arctic sea ice for 30 million years,” that “polar bears are remarkably adaptable,” and that “a warming climate might even benefit polar bears.”
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Amstrup, S.C., 2006, Future for polar bears in a declining sea ice environment: What do we know?, v. 15, no. 4, p. 8-11.","productDescription":"4 p.","startPage":"8","endPage":"11","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":326841,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":326842,"type":{"id":11,"text":"Document"},"url":"https://www.bearbiology.com/fileadmin/tpl/Downloads/IBN_Newsletters/IBN_2006_November_for_web.pdf","text":"http://www.bearbiology.com/fileadmin/tpl/Downloads/IBN_Newsletters/IBN_2006_November_for_web.pdf","linkFileType":{"id":1,"text":"pdf"}}],"volume":"15","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b6dc62e4b03fd6b7d94c45","contributors":{"authors":[{"text":"Amstrup, Steven C.","contributorId":67034,"corporation":false,"usgs":false,"family":"Amstrup","given":"Steven","email":"","middleInitial":"C.","affiliations":[{"id":13182,"text":"Polar Bears International","active":true,"usgs":false}],"preferred":false,"id":646209,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70175879,"text":"70175879 - 2006 - Fifty-two years of pineapple-express storms across the West Coast of North America","interactions":[],"lastModifiedDate":"2016-08-19T13:15:26","indexId":"70175879","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesNumber":"CEC-500-2005-004","subseriesTitle":"California Energy Commission PIER Energy-Related Environmental Research Report","title":"Fifty-two years of pineapple-express storms across the West Coast of North America","docAbstract":"No abstract available.
","language":"English","publisher":"California Energy Commission","usgsCitation":"Dettinger, M.D., 2006, Fifty-two years of pineapple-express storms across the West Coast of North America, 15 p.","productDescription":"15 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":327066,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b82db6e4b03fd6b7da36a9","contributors":{"authors":[{"text":"Dettinger, M. D. 0000-0002-7509-7332","orcid":"https://orcid.org/0000-0002-7509-7332","contributorId":93069,"corporation":false,"usgs":false,"family":"Dettinger","given":"M.","middleInitial":"D.","affiliations":[{"id":16196,"text":"Scripps Institution of Oceanography, La Jolla, CA","active":true,"usgs":false}],"preferred":false,"id":646484,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70175729,"text":"70175729 - 2006 - A model for autumn pelagic distribution of adult female polar bears in the Chukchi Seas, 1987-1994","interactions":[],"lastModifiedDate":"2024-08-06T12:10:59.179393","indexId":"70175729","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"A model for autumn pelagic distribution of adult female polar bears in the Chukchi Seas, 1987-1994","docAbstract":"We made predictions of polar bear (Ursus maritimus) autumn distribution in the Chukchi Sea with a Resource Selection Function (RSF) developed from 1198 satellite radio-collar locations on 124 adult female polar bears, 1987 – 1994. The RSF was created to assist in an aerial survey design for polar bears proposed by the U.S. Fish and Wildlife Service. The RSF was based on bathymetry and daily sea ice covariates extracted from passive microwave satellite imagery within the pelagic region > 25 km from shore. The RSF indicated that polar bears selected habitats with intermediate amounts (~50%) of ice cover in close proximity to higher ice concentrations, and over relatively shallow waters. The RSF showed good predictive abilities for the years of its construct, worked best in October, and was robust to inter-annual variability. When evaluated with recent (1997 – 2005) data, the RSF performed well for October and November but poorly in September. This loss of predictive abilities appeared to be related to recent changes in habitat due to longer melt seasons and younger sea ice, and testing the retrospective model with a small sample of recent polar bears locations from a limited region of the Chukchi Sea. Contemporary applications of this RSF must consider three factors that could limit its utility: 1) 2 different sea ice phenology; 2) distributions of males and sub-adults; and 3) occupancy in nearshore habitats.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Durner, G.M., Douglas, D., Nielson, R.M., and Amstrup, S.C., 2006, A model for autumn pelagic distribution of adult female polar bears in the Chukchi Seas, 1987-1994, v, 62 p.","productDescription":"v, 62 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":326844,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b6dc2ee4b03fd6b7d94bf9","contributors":{"authors":[{"text":"Durner, George M. 0000-0002-3370-1191 gdurner@usgs.gov","orcid":"https://orcid.org/0000-0002-3370-1191","contributorId":3576,"corporation":false,"usgs":true,"family":"Durner","given":"George","email":"gdurner@usgs.gov","middleInitial":"M.","affiliations":[{"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":646211,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"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":646212,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nielson, R. M.","contributorId":22967,"corporation":false,"usgs":false,"family":"Nielson","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":646213,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Amstrup, Steven C.","contributorId":67034,"corporation":false,"usgs":false,"family":"Amstrup","given":"Steven","email":"","middleInitial":"C.","affiliations":[{"id":13182,"text":"Polar Bears International","active":true,"usgs":false}],"preferred":false,"id":646214,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028056,"text":"70028056 - 2006 - Calcite-graphite thermometry of the Franklin Marble, New Jersey Highlands","interactions":[],"lastModifiedDate":"2012-03-12T17:20:42","indexId":"70028056","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Calcite-graphite thermometry of the Franklin Marble, New Jersey Highlands","docAbstract":"We present new stable-isotope data for the Mesoproterozoic Franklin Marble from outcrops along an 80-km traverse parallel to and across strike of the structural grain of the western New Jersey Highlands. Calcite and dolomite from marble have an average ??13C of 0.35??? ?? 0.73??? PDB (n = 46) and a more limited range than other Mesoproterozoic marbles from the Adirondacks and the Canadian Grenville Province. The small range of ??13C values from the New Jersey samples is consistent with the preservation of a primary marine isotopic signature and limited postdepositional isotopic modification, except proximal to Zn or Fe ore deposits and fault zones. Fractionations between calcite and well-formed graphite (??13C[Cal-Gr]) for analyzed Franklin Marble samples average 3.31???. ?? 0.25??? (n = 34), and dolomite-graphite fractionations average 3.07??? ?? 0.30??? (n = 6). Taken together, these indicate an average temperature of 769?? ?? 43??C during metamorphism associated with the Ottawan Orogeny in the New Jersey Highlands. Thus, carbon isotope fractionations demonstrate that the Franklin Marble was metamorphosed at granulite facies conditions. Metamorphic temperatures are relatively constant for the area sampled and overprint the metamorphosed carbonatehosted Zn-Fe-Mn ore deposits. The results of this study support recent work proposing that pressure and temperature conditions during Ottawan orogenesis did not vary greatly across faults that partition the Highlands into structural blocks. ?? 2006 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/504181","issn":"00221376","usgsCitation":"Peck, W., Volkert, R., Meredith, M., and Rader, E., 2006, Calcite-graphite thermometry of the Franklin Marble, New Jersey Highlands: Journal of Geology, v. 114, no. 4, p. 485-499, https://doi.org/10.1086/504181.","startPage":"485","endPage":"499","numberOfPages":"15","costCenters":[],"links":[{"id":210199,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/504181"},{"id":237048,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"114","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f2f6e4b0c8380cd4b4f2","contributors":{"authors":[{"text":"Peck, W.H.","contributorId":74566,"corporation":false,"usgs":true,"family":"Peck","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":416359,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Volkert, R.A.","contributorId":90799,"corporation":false,"usgs":true,"family":"Volkert","given":"R.A.","affiliations":[],"preferred":false,"id":416361,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meredith, M.T.","contributorId":40406,"corporation":false,"usgs":true,"family":"Meredith","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":416358,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rader, E.L.","contributorId":84558,"corporation":false,"usgs":true,"family":"Rader","given":"E.L.","email":"","affiliations":[],"preferred":false,"id":416360,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028075,"text":"70028075 - 2006 - Detection and quantification of Renibacterium salmoninarum DNA in salmonid tissues by real-time quantitative polymerase chain reaction analysis","interactions":[],"lastModifiedDate":"2016-05-12T16:11:11","indexId":"70028075","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2492,"text":"Journal of Veterinary Diagnostic Investigation","active":true,"publicationSubtype":{"id":10}},"title":"Detection and quantification of Renibacterium salmoninarum DNA in salmonid tissues by real-time quantitative polymerase chain reaction analysis","docAbstract":"Renibacterium salmoninarum is an important salmonid pathogen that is difficult to culture. We developed and assessed a real-time, quantitative, polymerase chain reaction (qPCR) assay for the detection and enumeration of R. salmoninarum. The qPCR is based on TaqMan technology and amplifies a 69-base pair (bp) region of the gene encoding the major soluble antigen (MSA) of R. salmoninarum. The qPCR assay consistently detected as few as 5 R. salmoninarum cells per reaction in kidney tissue. The specificity of the qPCR was confirmed by testing the DNA extracts from a panel of microorganisms that were either common fish pathogens or reported to cause false-positive reactions in the enzyme-linked immunosorbent assay (ELISA). Kidney samples from 38 juvenile Chinook salmon (Oncorhynchus tshawytscha) in a naturally infected population were examined by real-time qPCR, a nested PCR, and ELISA, and prevalences of R. salmoninarum detected were 71, 66, and 71%, respectively. The qPCR should be a valuable tool for evaluating the R. salmoninarum infection status of salmonids.
","language":"English","publisher":"Sage Journals","doi":"10.1177/104063870601800409","issn":"10406387","usgsCitation":"Chase, D., Elliott, D., and Pascho, R., 2006, Detection and quantification of Renibacterium salmoninarum DNA in salmonid tissues by real-time quantitative polymerase chain reaction analysis: Journal of Veterinary Diagnostic Investigation, v. 18, no. 4, p. 375-380, https://doi.org/10.1177/104063870601800409.","productDescription":"6 p.","startPage":"375","endPage":"380","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":477404,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1177/104063870601800409","text":"Publisher Index Page"},{"id":236804,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-07-01","publicationStatus":"PW","scienceBaseUri":"5059ff69e4b0c8380cd4f189","contributors":{"authors":[{"text":"Chase, D.M.","contributorId":50317,"corporation":false,"usgs":true,"family":"Chase","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":416419,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elliott, D.G.","contributorId":58226,"corporation":false,"usgs":true,"family":"Elliott","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":416420,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pascho, R.J.","contributorId":65796,"corporation":false,"usgs":true,"family":"Pascho","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":416421,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70175735,"text":"70175735 - 2006 - Use of buccal swabs for sampling DNA from nestling and adult birds","interactions":[],"lastModifiedDate":"2018-08-20T18:22:17","indexId":"70175735","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3779,"text":"Wildlife Society Bulletin","onlineIssn":"1938-5463","printIssn":"0091-7648","active":true,"publicationSubtype":{"id":10}},"title":"Use of buccal swabs for sampling DNA from nestling and adult birds","docAbstract":"We evaluated the feasibility and efficiency of using swabs to collect buccal epithelial cells fromsmall (2‐ to 13‐g) birds as a source of DNA for genetic studies. We used commercially available buccal swab kits to collect samples from 42 adult and 39 nestling (4‐ to 8‐day‐old) black‐capped chickadees (Poecile atricapillus) and from6 4‐day‐old nestling boreal chickadees (P. hudsonica). We compared DNA from buccal epithelial samples to that fromblood samples from the same individuals. We extracted sufficient quantities of DNA for analysis from all buccalsamples, and samples remained viable even after being stored in original plastic sampling tubes at room temperature for up to 18 months. Yields were equivalent whether extracted using the proprietary quick‐extraction solution provided with buccal swab kits or using a salt‐extraction process with inexpensive reagents. Yields of DNA from buccal samples were consistently lower than those from blood samples, but quantities were sufficient for all analyses. Assignment of sex, based on DNA extracted from paired buccal and blood samples, was identical for all 87 birds. We found no difference in the genotypes obtained from buccal and blood samples for 12 individuals tested using 5 microsatellite loci and found perfect concordance in sequencing of an 823‐base‐pair segment within the control region of mitochondrial DNA for 7 individuals tested. Use of buccal swabs is highly recommended as a rapid, noninvasive technique for sampling avian genomic DNA, especially for extremely young altricial nestlings or small‐bodied adults, or for any birds for which blood sampling may be impossible or stressful.
","language":"English","publisher":"Wildlife Society","publisherLocation":"Washington, DC","doi":"10.2193/0091-7648(2006)34[1094:UOBSFS]2.0.CO;2","issn":"0091-7648","usgsCitation":"Handel, C.M., Pajot, L.M., Talbot, S.L., and Sage, G.K., 2006, Use of buccal swabs for sampling DNA from nestling and adult birds: Wildlife Society Bulletin, v. 34, no. 4, p. 1094-1100, https://doi.org/10.2193/0091-7648(2006)34[1094:UOBSFS]2.0.CO;2.","productDescription":"7 p.","startPage":"1094","endPage":"1100","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":326852,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b6dc71e4b03fd6b7d94cac","contributors":{"authors":[{"text":"Handel, Colleen M. 0000-0002-0267-7408 cmhandel@usgs.gov","orcid":"https://orcid.org/0000-0002-0267-7408","contributorId":3067,"corporation":false,"usgs":true,"family":"Handel","given":"Colleen","email":"cmhandel@usgs.gov","middleInitial":"M.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":646240,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pajot, Lisa M. 0000-0001-5704-2381 lpajot@usgs.gov","orcid":"https://orcid.org/0000-0001-5704-2381","contributorId":201730,"corporation":false,"usgs":true,"family":"Pajot","given":"Lisa","email":"lpajot@usgs.gov","middleInitial":"M.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":646241,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Talbot, Sandra L. 0000-0002-3312-7214 stalbot@usgs.gov","orcid":"https://orcid.org/0000-0002-3312-7214","contributorId":140512,"corporation":false,"usgs":true,"family":"Talbot","given":"Sandra","email":"stalbot@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":646242,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sage, George K. 0000-0003-1431-2286 ksage@usgs.gov","orcid":"https://orcid.org/0000-0003-1431-2286","contributorId":87833,"corporation":false,"usgs":true,"family":"Sage","given":"George","email":"ksage@usgs.gov","middleInitial":"K.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":false,"id":646243,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028037,"text":"70028037 - 2006 - Groundwater-surface water interaction in the riparian zone of an incised channel, Walnut Creek, Iowa","interactions":[],"lastModifiedDate":"2012-03-12T17:20:55","indexId":"70028037","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Groundwater-surface water interaction in the riparian zone of an incised channel, Walnut Creek, Iowa","docAbstract":"Riparian zones of many incised channels in agricultural regions are cropped to the channel edge leaving them unvegetated for large portions of the year. In this study we evaluated surface and groundwater interaction in the riparian zone of an incised stream during a spring high flow period using detailed stream stage and hydraulic head data from six wells, and water quality sampling to determine whether the riparian zone can be a source of nitrate pollution to streams. Study results indicated that bank storage of stream water from Walnut Creek during a large storm water runoff event was limited to a narrow 1.6 m zone immediately adjacent to the channel. Nitrate concentrations in riparian groundwater were highest near the incised stream where the unsaturated zone was thickest. Nitrate and dissolved oxygen concentrations and nitrate-chloride ratios increased during a spring recharge period then decreased in the latter portion of the study. We used MODFLOW and MT3DMS to evaluate dilution and denitrification processes that would contribute to decreasing nitrate concentrations in riparian groundwater over time. MT3DMS model simulations were improved with a denitrification rate of 0.02 1/d assigned to the floodplain sediments implying that denitrification plays an important role in reducing nitrate concentrations in groundwater. We conclude that riparian zones of incised channels can potentially be a source of nitrate to streams during spring recharge periods when the near-stream riparian zone is largely unvegetated. ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2005.11.014","issn":"00221694","usgsCitation":"Schilling, K.E., Li, Z., and Zhang, Y., 2006, Groundwater-surface water interaction in the riparian zone of an incised channel, Walnut Creek, Iowa: Journal of Hydrology, v. 327, no. 1-2, p. 140-150, https://doi.org/10.1016/j.jhydrol.2005.11.014.","startPage":"140","endPage":"150","numberOfPages":"11","costCenters":[],"links":[{"id":237292,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":210389,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2005.11.014"}],"volume":"327","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2dd1e4b0c8380cd5c057","contributors":{"authors":[{"text":"Schilling, K. E.","contributorId":61982,"corporation":false,"usgs":true,"family":"Schilling","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":416242,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Li, Z.","contributorId":29160,"corporation":false,"usgs":true,"family":"Li","given":"Z.","affiliations":[],"preferred":false,"id":416240,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhang, Y.-K.","contributorId":44309,"corporation":false,"usgs":true,"family":"Zhang","given":"Y.-K.","email":"","affiliations":[],"preferred":false,"id":416241,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70028049,"text":"70028049 - 2006 - Patterns of growth and body condition in sea otters from the Aleutian archipelago before and after the recent population decline","interactions":[],"lastModifiedDate":"2017-06-28T15:03:08","indexId":"70028049","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2158,"text":"Journal of Animal Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Patterns of growth and body condition in sea otters from the Aleutian archipelago before and after the recent population decline","docAbstract":"1. Growth models for body mass and length were fitted to data collected from 1842 sea otters Enhydra lutris shot or live-captured throughout south-west Alaska between 1967 and 2004. Growth curves were constructed for each of two main year groups: 1967–71 when the population was at or near carrying capacity and 1992–97 when the population was in steep decline. Analyses of data collected from animals caught during 2004, when the population density was very low, were precluded by a small sample size and consequently only examined incidentally to the main growth curves.
2. Growth curves demonstrated a significant increase in body mass and body length at age in the 1990s. Asymptotic values of body mass were 12–18% higher in the 1990s than in the 1960s/70s, and asymptotic values for body length were 10–11% higher between the same periods. Data collected in 2004 suggest a continued increase in body size, with nearly all data points for mass and length falling significantly above the 1990s growth curves.
3. In addition to larger asymptotic values for mass and length, the rate of growth towards asymptotic values was more rapid in the 1990s than in the 1960s/70s: sea otters reached 95% of asymptotic body mass and body length 1–2 years earlier in the 1990s.
4. Body condition (as measured by the log mass/log length ratio) was significantly greater in males than in females. There was also an increasing trend from the 1960s/70s through 2004 despite much year-to-year variation.
5. Population age structures differed significantly between the 1960s/70s and the 1990s with the latter distribution skewed toward younger age classes (indicating an altered lxfunction) suggesting almost complete relaxation of age-dependent mortality patterns (i.e. those typical of food-limited populations).
6. This study spanned a period of time over which the population status of sea otters in the Aleutian archipelago declined precipitously from levels at or near equilibrium densities at some islands in the 1960s/70s to < 5% of estimated carrying capacity by the late 1990s. The results of this study indicate an improved overall health of sea otters over the period of decline and suggest that limited nutritional resources were not the cause of the observed reduced population abundance. Our findings are consistent with the hypothesis that the decline was caused by increased killer whale predation.
This report by the National Marine Fisheries Service applies a formal evaluation framework to the problem of delineating Oncorhynchus mykiss populations in the South-Central/Southern California Coast recovery domain, in support of recovery planning under the Endangered Species Act.
","language":"English","publisher":"NOAA","usgsCitation":"Boughton, D.A., Adams, P., Anderson, E., Fusaro, C., Keller, E., Kelley, E., Lentsch, L., Nielsen, J., Perry, K., Regan, H., Swift, C., and Watson, F., 2006, Steelhead of the south-central/southern California coast: Population characterization for recovery planning: NOAA Technical Memorandum, v. 394.","startPage":"123","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":326859,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"394","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b6dc6ee4b03fd6b7d94c8d","contributors":{"authors":[{"text":"Boughton, David A.","contributorId":172477,"corporation":false,"usgs":false,"family":"Boughton","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":646267,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, P.B.","contributorId":22576,"corporation":false,"usgs":true,"family":"Adams","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":646268,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, E.","contributorId":100078,"corporation":false,"usgs":true,"family":"Anderson","given":"E.","affiliations":[],"preferred":false,"id":646269,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fusaro, Craig","contributorId":172479,"corporation":false,"usgs":false,"family":"Fusaro","given":"Craig","email":"","affiliations":[],"preferred":false,"id":646270,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Keller, E.","contributorId":173846,"corporation":false,"usgs":false,"family":"Keller","given":"E.","email":"","affiliations":[],"preferred":false,"id":646271,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kelley, Elsie","contributorId":172480,"corporation":false,"usgs":false,"family":"Kelley","given":"Elsie","email":"","affiliations":[],"preferred":false,"id":646272,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lentsch, Leo","contributorId":172481,"corporation":false,"usgs":false,"family":"Lentsch","given":"Leo","email":"","affiliations":[],"preferred":false,"id":646273,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Nielsen, J. L.","contributorId":115508,"corporation":false,"usgs":true,"family":"Nielsen","given":"J. L.","affiliations":[],"preferred":false,"id":646274,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Perry, Katie","contributorId":172482,"corporation":false,"usgs":false,"family":"Perry","given":"Katie","email":"","affiliations":[],"preferred":false,"id":646275,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Regan, Helen","contributorId":172483,"corporation":false,"usgs":false,"family":"Regan","given":"Helen","affiliations":[],"preferred":false,"id":646276,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Swift, C.","contributorId":72660,"corporation":false,"usgs":true,"family":"Swift","given":"C.","affiliations":[],"preferred":false,"id":646277,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Watson, Fred","contributorId":172486,"corporation":false,"usgs":false,"family":"Watson","given":"Fred","email":"","affiliations":[],"preferred":false,"id":646278,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70028039,"text":"70028039 - 2006 - The 'Orsten': more than a Cambrian Konservat-Lagerstätte yielding exceptional preservation","interactions":[],"lastModifiedDate":"2015-04-20T08:57:38","indexId":"70028039","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2999,"text":"Palaeoworld","active":true,"publicationSubtype":{"id":10}},"title":"The 'Orsten': more than a Cambrian Konservat-Lagerstätte yielding exceptional preservation","docAbstract":"In several areas of southern Sweden, limestone nodules, locally called Orsten occur within bituminous alum shales. These shales and nodules were deposited under dysoxic conditions at the bottom of what was most likely a shallow sea during the late Middle to Upper Cambrian (ca. 500 million years ago). Subsequently, the name ‘Orsten’ has been referred to particular, mainly arthropod, fossils from such nodules, and, in a wider sense, to the specific type of preservation of minute fossil through secondarily phosphatization. This preservation is exceptional in yielding uncompacted and diagenetically undeformed three-dimensional fossils. ‘Orsten’-type preservation resulted from incrustation of a thin external layer and also by impregnation by calcium phosphate and, therefore, mineralization of the surface of the former animals during early diagenesis. Primarily, this type of preservation seems to have affected only cuticle-bearing metazoans such as cycloneuralian nemathelminths and arthropods. ‘Orsten’ preservation in this sense seems to be limited by size, in having yielded no partial or complete animals larger than 2 mm. On the other end of the scale, even larvae 100 μm long are preserved, often more complete than larger specimens, and details such as setules and pores smaller than 1 μm can be observed. Fossils preserved in such a manner are almost exclusively hollow carcasses, but can be filled secondarily; less common are completely phosphatized compact specimens. The high quality of preservation makes the Swedish ‘Orsten’ a typical Konservat-Lagerstätte. Yet, its special type of preservation is more widespread in time and geographical distribution than assumed initially, and the origin of the phosphate is not necessarily restricted just to one source. Subsequent to the first discoveries of limb fragments of Cambrian arthropods in 1975, animals in this special preservational type have been discovered in several continents and across a broad stratigraphic range including even Proterozoic strata. The latter have yielded early cleavage and metazoan embryonic stages, expanding knowledge on the preservational capacities of the ‘Orsten’. Here, we report the recent status of our research on the ‘Orsten’ and give perspectives for future exploration on a worldwide scale, particularly in light of a recently formed international research group named Center of Orsten Research and Exploration (C.O.R.E.).
","language":"English","publisher":"Elsevier","doi":"10.1016/j.palwor.2006.10.005","issn":"1871174X","usgsCitation":"Maas, A., Braun, A., Dong, X., Donoghue, P.C., Muller, K.J., Olempska, E., Repetski, J.E., Siveter, D.J., Stein, M., and Waloszek, D., 2006, The 'Orsten': more than a Cambrian Konservat-Lagerstätte yielding exceptional preservation: Palaeoworld, v. 15, no. 3-4 SPEC. ISS., p. 266-282, https://doi.org/10.1016/j.palwor.2006.10.005.","productDescription":"17 p.","startPage":"266","endPage":"282","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":500805,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2381/27533","text":"External Repository"},{"id":237325,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":210415,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palwor.2006.10.005"}],"volume":"15","issue":"3-4 SPEC. ISS.","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba612e4b08c986b320e83","contributors":{"authors":[{"text":"Maas, Andreas","contributorId":73401,"corporation":false,"usgs":true,"family":"Maas","given":"Andreas","email":"","affiliations":[],"preferred":false,"id":416251,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Braun, Andreas","contributorId":80877,"corporation":false,"usgs":true,"family":"Braun","given":"Andreas","email":"","affiliations":[],"preferred":false,"id":416252,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dong, Xi-Ping","contributorId":139369,"corporation":false,"usgs":false,"family":"Dong","given":"Xi-Ping","email":"","affiliations":[{"id":12751,"text":"Nanjing Institute of Geology and Palaeontology","active":true,"usgs":false}],"preferred":false,"id":416253,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Donoghue, Philip C.J.","contributorId":139372,"corporation":false,"usgs":false,"family":"Donoghue","given":"Philip","email":"","middleInitial":"C.J.","affiliations":[{"id":7172,"text":"University of Bristol, U.K. and University of Oregon, Eugene","active":true,"usgs":false}],"preferred":false,"id":416249,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Muller, Klaus J.","contributorId":30809,"corporation":false,"usgs":true,"family":"Muller","given":"Klaus","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":416246,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Olempska, Ewa","contributorId":62007,"corporation":false,"usgs":true,"family":"Olempska","given":"Ewa","email":"","affiliations":[],"preferred":false,"id":416250,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Repetski, John E. 0000-0002-2298-7120 jrepetski@usgs.gov","orcid":"https://orcid.org/0000-0002-2298-7120","contributorId":2596,"corporation":false,"usgs":true,"family":"Repetski","given":"John","email":"jrepetski@usgs.gov","middleInitial":"E.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":416247,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Siveter, David J.","contributorId":43558,"corporation":false,"usgs":true,"family":"Siveter","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":416248,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Stein, Martin","contributorId":28055,"corporation":false,"usgs":true,"family":"Stein","given":"Martin","email":"","affiliations":[],"preferred":false,"id":416245,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Waloszek, Dieter","contributorId":95256,"corporation":false,"usgs":true,"family":"Waloszek","given":"Dieter","email":"","affiliations":[],"preferred":false,"id":416254,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ]}