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Nest Population Size And Potential Production Of Geese And Spectacled Eiders On The Yukon Kuskokwim Delta Alaska 2005
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Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 2005 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, 2005 written by Julian B. Fischer and published by . This book was released on 2005 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some 85 plots were sampled in a ground survey in the Hazen Bay region (from Kigigak Island to Kashunuk River) in order to determine potential production of waterbirds, especially geese and eiders. In this Yukon-Kuskokwim delta coastal zone the increase of spectacled eider was estimated to be 29% higher since 2004. Geese production was good. Statistics include cackling goose, emperor goose, 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 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 Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 2009 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, 2009 written by Julian B. Fischer and published by . This book was released on 2009 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of 85 plots, 81 were sampled in a ground survey in the Hazen Bay region in the Yukon-Kuskokwim delta coastal zone (from Kigigak Island to Kashunuk River) in order to determine potential production of waterbirds, especially geese and eiders. Statistics cover cackling goose, emperor goose, 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 Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2014 by :
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2014 written by and published by . This book was released on 2015 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data based on ground-based nest surveys on population status, egg production, nesting effort, phenology, habitat use, and predation for the cackling Canada goose, emperor goose, greater white-fronted goose, and spectacled eider. The survey also provides statistics for the black brant, tundra swan, sandhill crane, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
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 Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2012 by :
Download or read book Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 1985-2012 written by and published by . This book was released on 2013 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides statistical data based on ground-based nest surveys on population status, egg production, nesting effort, phenology, habitat use, and predation for the cackling Canada goose, emperor goose, greater white-fronted goose, and spectacled eider. The survey also provides statistics for the tundra swan, sandhill crane, common eider, Pacific loon, red-throated loon, glaucous gull, mew gull, Sabine's gull, and arctic tern.
Book Synopsis Nest Population Size and Potential Production of Geese and Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska, 2007 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, 2007 written by Julian B. Fischer and published by . This book was released on 2007 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A ground-based sampling procedure was used to monitor goose and eider nest populations and potential production on the Yukon-Kuskokwim Delta coastal zone from 1985 to 2007.
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 Population Size and Production of Geese and Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska in 2003 by : Julian B. Fischer
Download or read book Population Size and Production of Geese and Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska in 2003 written by Julian B. Fischer and published by . This book was released on 2003 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Production was poor for most waterfowl species in 2003. Numbers of nests were down from 2002 for geese and eiders. Depredation rates were high resulting in substantial nest destruction and egg loss. Predation by arctic foxes contributed significantly to poor production."--Page [1].
Book Synopsis Population Size and Production of Geese and Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska in 2002 by : Timothy Dale Bowman
Download or read book Population Size and Production of Geese and Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska in 2002 written by Timothy Dale Bowman and published by . This book was released on 2002 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The North American Sea Ducks by : Paul Johnsgard
Download or read book The North American Sea Ducks written by Paul Johnsgard and published by Lulu.com. This book was released on 2016-11-09 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 21 species of sea ducks are one of the larger subgroups (Tribe Mergini) of the waterfowl family Anatidae, and the 16 species (one historically extinct) that are native to North America represent the largest number to be found on any continent, and also the largest number of endemic sea duck species native to any continent. Although generally not important as game birds, the sea ducks include some economically important birds such as the eiders, the basis for the Arctic eiderdown industry and a historically important food source for some Native American cultures. They also include what is probably the most northerly breeding species of all waterfowl and an icon of Arctic bird life, the long-tailed duck. The sea ducks also include species having some of the most complex and diverse pair-forming postural and acoustic displays of all waterfowl (goldeneyes and bufflehead), and some of the deepest diving species of all waterfowl (scoters and long-tailed duck). Sea ducks are highly prone to population disasters caused by oil spills and other water contaminants and, like other seabirds, are among the first bird groups that are being affected by current global warming trends in polar regions. This book is an effort to summarize succinctly our current knowledge of sea duck biology and to provide a convenient survey of the vast technical literature on the group, with over 900 literature references. It also includes 90,000 words of text (more than 40 percent of which is new), 15 updated range maps, 11 black & white and 20 color photographs, over 30 ink drawings, and nearly 150 sketches. Lastly, the North American sea ducks include the now extinct Labrador duck, the only northern hemisphere waterfowl species to have gone extinct in modern times. I have gratefully reprinted a Labrador duck watercolor by Sir Peter Scott. Considering recent population crashes in other sea ducks, such as the Steller's eider and spectacled eider, it should also offer a sobering reminder of the fragility of our natural world and its inhabitants, including us.
Book Synopsis Population Size and Production of Geese and Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska in 1997 by : Timothy Dale Bowman
Download or read book Population Size and Production of Geese and Eiders Nesting on the Yukon-Kuskokwim Delta, Alaska in 1997 written by Timothy Dale Bowman and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 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 The Influence of Fall Storms on Nest Densities of Geese and Eiders on the Yukon-Kuskokwim Delta of Alaska by : Sarah Therese Saalfeld
Download or read book The Influence of Fall Storms on Nest Densities of Geese and Eiders on the Yukon-Kuskokwim Delta of Alaska written by Sarah Therese Saalfeld and published by . This book was released on 2015 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final project report summarizes the methods and findings from the investigation of the impacts of fall storms on waterbird nest densities on the outer coast of the Yukon Kuskokwim Delta of Alaska. The purpose is to understand the potential effects of climate changes, such as sea level rises and increased storm frequency and intensity to waterbird populations and breeding habitat. The authors investigated the short-term and long-term effects of storm surges to geese and eider species that commonly breed in the delta. Those species studies in this report are cackling goose, emperor goose, black brant, greater white-fronted goose, spectacles eider, common eider. The authors compared nest densities in relation to magnitude of storms that occurred in the preceding fall between 2000 and 2013, and modeled nest densities using random forests in relation to the time-integrated flood index for modeled storms and for other environmental covariates.
Author :R. Nawrot Publisher :Geological Society of London Special Publications ISBN 13 :1786205777 Total Pages :406 pages Book Rating :4.7/5 (862 download)
Book Synopsis Conservation Palaeobiology of Marine Ecosystems by : R. Nawrot
Download or read book Conservation Palaeobiology of Marine Ecosystems written by R. Nawrot and published by Geological Society of London Special Publications. This book was released on 2023-07-03 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation palaeobiology tracks the history of ecosystems based on the fossil record to guide conservation decisions and contribute to the theoretical foundations of conservation biology. The accelerating pace of global change requires better understanding of the long-term resilience and adaptive capacities of ecosystems. Fossil assemblages in outcrops and cores, together with surface accumulations of skeletal remains, represent unique archives of past ecosystem dynamics and baseline community states prior to anthropogenic impacts. However, as biological data retrieved from fossil and death assemblages cannot be treated in isolation, conservation palaeobiology integrates palaeontological and geological tools to account for the nature of the stratigraphic record. This volume brings together studies that demonstrate how combining marine palaeoecological records with other types of geohistorical data (taphonomic, sedimentological, geochronological, geochemical) can inform biodiversity conservation and ecosystem management. The papers highlight novel approaches and challenges in applying geohistorical data to conservation problems, discuss the limitations imposed by time averaging, and offer both deep- and near-time perspectives on conservation palaeobiology of marine ecosystems.
