Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Simulating Distance Sampling To Estimate Nest Abundance On The Yukon Kuskokwim Delta Alaska
Download Simulating Distance Sampling To Estimate Nest Abundance On The Yukon Kuskokwim Delta Alaska full books in PDF, epub, and Kindle. Read online Simulating Distance Sampling To Estimate Nest Abundance On The Yukon Kuskokwim Delta Alaska ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Simulating Distance Sampling to Estimate Nest Abundance on the Yukon-Kuskokwim Delta, Alaska by : Elaine Gallenberg
Download or read book Simulating Distance Sampling to Estimate Nest Abundance on the Yukon-Kuskokwim Delta, Alaska written by Elaine Gallenberg and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Fish and Wildlife Service currently conducts annual surveys to estimate bird nest abundance on the Yukon-Kuskokwim Delta, Alaska. The current method involves intensive searching on large plots with the goal of finding every nest on the plot. Distance sampling is a well-established transect-based method to estimate density or abundance that accounts for imperfect detection of objects. It relies on estimating the probability of detecting an object given its distance from the transect line, or the detection function. Simulations were done using R to explore whether distance sampling methods on the Yukon-Kuskokwim Delta could produce reliable estimates of nest abundance. Simulations were executed both with geographic strata based on estimated Spectacled Eider (Somateria fischeri) nest densities and without stratification. Simulations with stratification where more effort was allotted to high density areas tended to be more precise, but lacked the property of pooling robustness and assumed stratum boundaries would not change over time. Simulations without stratification yielded estimates with relatively low bias and variances comparable to current estimation methods. Distance sampling appears to be a viable option for estimating the abundance of nests on the Yukon-Kuskokwim Delta.
Book Synopsis Production of Geese Nesting on the Yukon-Kuskokwim Delta, Alaska by :
Download or read book Production of Geese Nesting on the Yukon-Kuskokwim Delta, Alaska written by and published by . This book was released on 1990 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground-sampling survey estimating number of eggs, total nests, and number of active nests for cackling Canada geese, emperor geese, greater white-fronted geese, and spectacled eider.
Book Synopsis Distance Sampling by : Stephen T. Buckland
Download or read book Distance Sampling written by Stephen T. Buckland and published by . This book was released on 1993 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory concepts. Introduction. Range of applications. Types of data. Known constants and parameters. Assumptions. Fundamental concept. Detection. History of methods. Program DISTANCE. Assumptions and modelling philosophy. Assumptions. Fundamental models. Philosophy and strategy. Robust models. Some analysis guidelines. Statistical theory. General formula. Hazard-rate modelling of the detection process. The key function formulation for distance data. Maximum likelihood methods. Choice of model. Estimation for clustered populations. Density, variance and interval estimation. Stratification and covariates. Line transects. Introduction. Example data. Truncation. Extensions and related work. Other models. Modelling variation in encounter rate and cluster size. Estimation of the probability of detection on the line or pint. On the concept of detection search effort. Fixed versus random sample size. Efficient simulation of distance data. Thoughts about a full likelihood approach. Distance sampling in three dimensions. ...
Book Synopsis Population Size and Production of Geese and Spectacled Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska by : Robert A. Stehn
Download or read book Population Size and Production of Geese and Spectacled Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska written by Robert A. Stehn and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground-based sampling procedure was used to estimate numbers of eggs, total nests, and active nests for cackling Canada geese, emperor geese, greater white-fronted geese, and spectacled eiders.
Book Synopsis Predicting Waterbird Nest Distributions on the Yukon-Kuskokwim Delta of Alaska by : Sarah Therese Saalfeld
Download or read book Predicting Waterbird Nest Distributions on the Yukon-Kuskokwim Delta of Alaska written by Sarah Therese Saalfeld and published by . This book was released on 2014 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A first step in evaluating the potential effects of climate-mediated changes on waterbird species within the Yukon-Kuskokwim Delta is to determine the current location of important nesting areas and understand the importance of environmental variables associated with nest density. This report summarizes the methods and results of this first step. It summarizes locations of waterbirds of fifteen species using data collected between 1985 and 2013.
Book Synopsis Distance Sampling by : S. T. Buckland
Download or read book Distance Sampling written by S. T. Buckland and published by Springer. This book was released on 1993-05-27 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: one can choose a point instead and measure the radial distances of the animals detected. It is very appropriate that the leading exponents in this field have come together to produce an authoritative description on 'how to do it'. They bring with them many years of experience in this research area. This book is a must for all those involved in estimating animal abundance as the methods can be used for such a wide variety of animal species including birds and marine mammals. The methods also apply to clusters of animals such as schools of dolphins and to animal signs. The beauty of such methods lies in the fact that not every animal has to be seen when a population is investigated. At the heart of the methodology is a 'detectability' function which is estimated in some robust fashion from the distances to the animals actually seen. Many species are not always visible and may be detected by the sounds they make or by being flushed out into the open. Clearly animals can have widely different behaviour patterns so that different models will be needed for different situations. This book provides a tool box of such methods with a computer package which helps the researcher to select the right tool for each occasion. The authors have a reputation for being very thorough and, typically, they endeavour to cover every conceivable situation that might be encountered in the field.
Book Synopsis Population Dynamics of Greater Scaup Breeding on the Yukon-Kuskokwim Delta, Alaska by : Paul Leroy Flint
Download or read book Population Dynamics of Greater Scaup Breeding on the Yukon-Kuskokwim Delta, Alaska written by Paul Leroy Flint and published by . This book was released on 2006 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Populations of greater scaup (Aythya marila) remained relatively stable during a period when populations of lesser scaup (A. affinis) have declined from historic levels. To assist in describing these differences in population trends, from 1991 through 2000, we studied survival, nesting, ecology, and productivity of greater scaup on the Yukon-Kuskokwim Delta (Y-K Delta), Alaska, to develop a model of population dynamics. We located nests, radio-marked females for renesting studies, estimated duckling survival, and leg-banded females to examine nest site fidelity and annual survival"--Page 1.
Book Synopsis Abundance and Trend of Waterbirds on Alaska's Yukon-Kuskokwim Delta Coast Based on 1988 to 2005 Aerial Surveys by : Robert M. Platte
Download or read book Abundance and Trend of Waterbirds on Alaska's Yukon-Kuskokwim Delta Coast Based on 1988 to 2005 Aerial Surveys written by Robert M. Platte and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary of aerial survey observations from 1988 to 2005 that collected abundance, trend, and distribution of waterbird nesting populations in the Yukon-Kuskokwim Delta. Surveys were conducted from the mouth of the Yukon River in the north to Kuskokwim Bay in the south and extended 50 km inland.
Book Synopsis Abundance and Trend of Waterbirds on Alaska's Yukon-Kuskokwim Delta Coast Based on 1988 to 2006 Aerial Surveys by : Robert M. Platte
Download or read book Abundance and Trend of Waterbirds on Alaska's Yukon-Kuskokwim Delta Coast Based on 1988 to 2006 Aerial Surveys written by Robert M. Platte and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary of aerial survey observations from 1988 to 2006 that collected abundance, trend, and distribution of waterbird nesting populations in the Yukon-Kuskokwim Delta. Surveys were conducted from the mouth of the Yukon River in the north to Kuskokwim Bay in the south and extended 50 km inland.
Book Synopsis Population Size and Production of Geese Nesting on the Yukon-Kuskokwim Delta, Alaska by : Robert A. Stehn
Download or read book Population Size and Production of Geese Nesting on the Yukon-Kuskokwim Delta, Alaska written by Robert A. Stehn and published by . This book was released on 1994 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distance Sampling by : Rosemary K. Barraclough
Download or read book Distance Sampling written by Rosemary K. Barraclough and published by . This book was released on 2000-08-01 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Distance Sampling by : S. Buckland
Download or read book Introduction to Distance Sampling written by S. Buckland and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2011 by : Julian B. Fischer
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2011 written by Julian B. Fischer and published by . This book was released on 2011 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data from ground-based surveys taken to estimate numbers of nests and eggs of geese and eiders in the Yukon-Kuskokwim delta from 1985 to 2011. Of 85 plots, 82 were sampled in June 2011 in a ground survey in the Hazen Bay coastal region (from Kigigak Island to Kashunuk River). Complete statistics are given for cackling goose, emperor goose, greater white-fronted goose, black brant, tundra swan, sandhill crane, spectacled eider, common eider, glaucous gull, mew gull, Sabine's gull, arctic tern, red-throated loon, and Pacific loon. Additional statistics (on nest initiation and hatch date) are given for greater scaup/long-tailed duck, pintail/shoveler/mallard/teal, and small shorebirds and statistics for fox and vole signs.
Book Synopsis Introduction to Distance Sampling by : Stephen T. Buckland
Download or read book Introduction to Distance Sampling written by Stephen T. Buckland and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for graduate biologists with a quantitative background, who carry out population assessments of wildlife: mammalogists, ornithologists, and fisheries biologists.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2010 by : Julian B. Fischer
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2010 written by Julian B. Fischer and published by . This book was released on 2010 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data from ground-based surveys taken to estimate numbers of nests and eggs of geese and eiders in the Yukon-Kuskokwim delta from 1985 to 2010. Of 85 plots, 66 were sampled in 2010 in a ground survey in the Hazen Bay coastal region (from Kigigak Island to Kashunuk River). Statistics cover cackling goose, emperor goose, greater white-fronted goose, black brant, tundra swan, sandhill crane, spectacled eider, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
Book Synopsis Nesting Populations and Production of Geese on the Yukon-Kuskokwim Delta by : Robert A. Stehn
Download or read book Nesting Populations and Production of Geese on the Yukon-Kuskokwim Delta written by Robert A. Stehn and published by . This book was released on 1991 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Distance Sampling by : Stephen T. Buckland
Download or read book Advanced Distance Sampling written by Stephen T. Buckland and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing new methodologies and technologies, this text focuses on the use of distance sampling to estimate the density and abundance of biological populations.
