Population Genetic Structure Kinship And Social Associations In Three Harlequin Duck Histrionicus Histrionicus Breeding Subpopulations

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Population Genetic Structure Kinship And Social Associations In Three Harlequin Duck Histrionicus Histrionicus Breeding Subpopulations

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Author : Margaret Elizabeth Brown (M.S. in ecology)
language : en
Publisher:
Release Date : 1998

Population Genetic Structure Kinship And Social Associations In Three Harlequin Duck Histrionicus Histrionicus Breeding Subpopulations written by Margaret Elizabeth Brown (M.S. in ecology) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.

Population Genetic Structure And Breeding Philopatric Behavior Of Cackling Canada Geese

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Author : Ada Christine Fowler
language : en
Publisher: Ann Arbor, Mich. : University Microfilms International
Release Date : 2003

Population Genetic Structure And Breeding Philopatric Behavior Of Cackling Canada Geese written by Ada Christine Fowler and has been published by Ann Arbor, Mich. : University Microfilms International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Cackling goose categories.

The author studied patterns of genetic differentiation in breeding cackling Canada geese (Branta canadensis minima) at multiple scales, and sought to link reproductive consequences of philopatry with subsequent patterns. Large-scale patterns were examined using different types of molecular markers. Lastly, the author investigated relatedness and nesting dispersion of Pacific greater white-fronted geese (Anser albifrons frontalis). Females in clusters were not more related than expected. The studies were conducted in coastal western Alaska along the coast of the Bering Sea in the Hazen Bay area and along the Kashunuk River near its mouth at Hazen Bay.

Movement Patterns And Population Structure Of Harlequin Ducks Wintering In The Strait Of Georgia British Columbia

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Author : Heidi M. Regehr
language : en
Publisher:
Release Date : 2003

Movement Patterns And Population Structure Of Harlequin Ducks Wintering In The Strait Of Georgia British Columbia written by Heidi M. Regehr and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Ducks categories.

I investigated winter movement patterns and population structure of Harlequin Ducks (Histrionicus histrioniczrs) in the Strait of Georgia, British Colunlbia, Canada. Because of winter pairing, delayed maturation, and long-term pair bonds, movement patterns at wintering areas, particularly those of young birds that have not yet paired, are important to population structure. I used nasal- and radio-marking to determine movement distances, and multi-stratum models In capture-mark-recapture analysis to estimate movement rates among locations. I provide evidence that Harlequin Duck broods accompany their mothers from breeding streams to coastal wintering areas. Behavioural observations of family-like groups at the coast, and genetic analysis of blood samples from putative family members, suggested that observed groups were true families. Family migration in combination with philopatry, in the absence of dispersal, would lead to juvenile recruitment into the wintering populations of their relatives, and potentially to genetic and demographically isolated populations. Winter movement distances and rates did not differ by sex, likely due to extreme philopatry of paired males, slightly reduced philopatry of unpaired males, and intermediate philopatry of previously paired females. However, they did differ by age, with young birds in their first and second winters dispersing greater distances and at higher rates than older individuals. Isolation by distance and stepping stone gene flow models generated estimates for the among population component of genetic variance of less than 1% for the Strait of Georgia. Thus, due to dispersal of young individuals, which counteracts the isolating effects of philopatry and family migration, groups of Harlequin Ducks are unlikely to be genetically distinct at this scale. However, estimates from the stepping stone model for an increased number of colonies did suggest that, due to their linear coastal distribution, genetic differences could develop at the scale of their entire west coast of North America wintering range. Low movement rates between the northern and southern Strait of Georgia suggested that groups of wintering birds may be demographically distinct at this scale, and dispersal by both sexes indicated that recolonization or rescue of extinct or reduced groups is likely.

Kirtland S Warbler

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Author :
language : en
Publisher:
Release Date : 1998

Kirtland S Warbler written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Kirtland's warbler categories.

Non Infectious Diseases Of Wildlife

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Author : Anne Fairbrother
language : en
Publisher: CRC Press
Release Date : 1996

Non Infectious Diseases Of Wildlife written by Anne Fairbrother and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Medical categories.

This book provides an introduction to disease problems - other than those of an infectious or parasitic nature - that afflict free-ranging and captive wildlife. Noninfectious diseases include the effects of toxic substances, physiological conditions and trauma on wildlife. It covers a wide range of dangers to wildlife including lead poisoning and the effects of environmental oestrogenic compounds, oil pollution, mercury poisoning, mycotoxins, geophagy, organochlorine pesticides, selenium, and cyanide. This is of value to all who have an interest in the health and disease status of wildlife populations: Veterinarians in training, practice and research. Wildlife Managers, Wildlife Biologists, Zoo and Public Health Specialists, Environmental Conservationists.

Oil Spill Impacts

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Author : Yejun Wu
language : en
Publisher: CRC Press
Release Date : 2016-02-22

Oil Spill Impacts written by Yejun Wu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-02-22 with Science categories.

Starting with the 2010 Gulf of Mexico Deepwater Horizon oil spill incident, Oil Spill Impacts: Taxonomic and Ontological Approaches chronicles a timeline of events that focus on the impact of oil spills and provides an understanding of these incidents using a number of approaches. The book includes an interdisciplinary oil spill taxonomy, an

Emergency Care And Rehabilitation Of Oiled Sea Otters

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Author : Terrie M. Williams
language : en
Publisher: [Fairbanks, AK] : University of Alaska Press
Release Date : 1995

Emergency Care And Rehabilitation Of Oiled Sea Otters written by Terrie M. Williams and has been published by [Fairbanks, AK] : University of Alaska Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Marine mammals categories.

This book was written by twenty-nine professionals with the often unwilling cooperation of 357 Alaskan sea otters -- the most photogenic and probably the most vulnerable of the mammalian victims of the 1989 Exxon Valdez oil spill.It is divided into three sections covering a broad range of concerns, from how best to capture a sea otter, through tests and suggested treatments, to considerations governing release of rehabilitated animals. Experts also discuss facility design, volunteer training, and personnel safety issues.Although its contents are useful for a variety of people from policymakers to veterinarians, Emergency Care and Rehabilitation of Oiled Sea Otters aims chiefly at helping rehabilitators, representatives of the oil industry, and government agents conduct successful rehabilitation efforts. The book contains the best available information on the subject; nothing else even comes close.