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Population Genetic Structure Kinship And Social Associations In Three Harlequin Duck Histrionicus Histrionicus Breeding Subpopulations
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Book Synopsis Population Genetic Structure, Kinship, and Social Associations in Three Harlequin Duck (Histrionicus Histrionicus) Breeding Subpopulations by : Margaret Elizabeth Brown (M.S. in ecology)
Download or read book 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 published by . This book was released on 1998 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Ada Christine Fowler Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :268 pages Book Rating :4.:/5 (64 download)
Book Synopsis Population Genetic Structure and Breeding Philopatric Behavior of Cackling Canada Geese by : Ada Christine Fowler
Download or read book Population Genetic Structure and Breeding Philopatric Behavior of Cackling Canada Geese written by Ada Christine Fowler and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 2003 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Movement Patterns and Population Structure of Harlequin Ducks Wintering in the Strait of Georgia, British Columbia by : Heidi M. Regehr
Download or read book Movement Patterns and Population Structure of Harlequin Ducks Wintering in the Strait of Georgia, British Columbia written by Heidi M. Regehr and published by . This book was released on 2003 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Kirtland's Warbler written by and published by . This book was released on 1998 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure and Function of Glutathione S-Transferases by : Kenneth D. Tew
Download or read book Structure and Function of Glutathione S-Transferases written by Kenneth D. Tew and published by CRC Press. This book was released on 1993-08-26 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure and Function of Glutathione S-Transferases provides some of the latest information available on a variety of structural and functional components of glutathione S-transferases, a family of isozymes involved in many endogenous and exogenous functions in cells. Molecular studies presented in the book focus on the regulation of these enzymes and identify important response elements. X-ray crystallographic structures show detailed information on the structural aspects of these proteins. Metabolism of a number of carcinogens and drugs is covered in detail, and the role that these enzymes play in governing drug resistance at the preclinical and clinical levels is discussed. The book will be excellent for biochemists, pharmacologists, oncologists, experimental therapeutic specialists, and others interested in glutathione S-transferases.
Book Synopsis Harlequin Duck Demography During Winter in Prince William Sound, Alaska by : Daniel Esler
Download or read book Harlequin Duck Demography During Winter in Prince William Sound, Alaska written by Daniel Esler and published by . This book was released on 2000 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1989 Exxon Valdez oil spill was a major perturbation of nearshore habitats of Prince William Sound, a wintering area for harlequin ducks (Histrionicus histrionicus). This research was designed to evaluate harlequin duck population recovery from the oil spill from 1995 to 1998, using a demographic approach to assess both the "product" of population changes (e.g., density differences; Chapter 4) and the demographic "processes" affecting population dynamics (e.g., survival; Chapter 3). Wintering aggregations of harlequin ducks are core population units from a population structure perspective and are largely demographically independent, due to high rates of winter site fidelity, pair formation during winter, and evidence that juveniles follow hens to wintering areas. Therefore, evaluation of population-level effects of the oil spill is appropriately directed at these wintering aggregations. We selected adult female survival as a primary demographic attribute to measure, as population dynamics of animals with life history characteristics like harlequin ducks are particularly sensitive to variation in adult female survival rates. Also, we speculated that oil spill effects during winter would be manifested as survival reductions. We found that winter densities of harlequin ducks were lower on oiled study areas than unoiled areas, after accounting for effects of habitat (Chapter 4), indicating that population recovery had not occurred. Also, we determined that adult female survival was lower on oiled areas than unoiled areas (Chapter 3), and speculated that this was related to documented oil exposure of harlequin duck populations in oiled areas coincident with our study. We also confirmed that our survival estimates were not biased by assumptions about effects of radio transmitters or fate of missing radios (Chapter 2). In Chapter 5, we reviewed all data relevant to harlequin duck recovery from the oil spill, including our demographic data, and concluded that population recovery had not occurred by 1998, deleterious effects persisted, and continued oil exposure likely was the primary constraint to full recovery. Although populations of many species may have recovered quickly from the Exxon Valdez spill, characteristics of harlequin ducks make their winter populations particularly susceptible, including their habitat associations, diet, life history. and energetics
Book Synopsis Non-Infectious Diseases of Wildlife by : Anne Fairbrother
Download or read book Non-Infectious Diseases of Wildlife written by Anne Fairbrother and published by CRC Press. This book was released on 1996 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Oil Spill Impacts written by Yejun Wu and published by CRC Press. This book was released on 2016-02-22 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Emergency Care and Rehabilitation of Oiled Sea Otters by : Terrie M. Williams
Download or read book Emergency Care and Rehabilitation of Oiled Sea Otters written by Terrie M. Williams and published by [Fairbanks, AK] : University of Alaska Press. This book was released on 1995 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
