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Author :
Publisher :
ISBN 13 :
Total Pages : 266 pages
Book Rating : 4.:/5 (31 download)
Download or read book Park Science written by and published by . This book was released on 1988 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Elliott Coues
Publisher :
ISBN 13 :
Total Pages : 640 pages
Book Rating : 4.:/5 (318 download)
Download or read book Key to North American Birds written by Elliott Coues and published by . This book was released on 1903 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part contains information on collecting, preserving and preparing birds; classification and anatomy. The remainder of the work contains descriptions down to species, identification keys and illustrations, mainly black and white. Technical, classical work. Indexed. Published 1903.
Author : James Lee Peters
Publisher :
ISBN 13 :
Total Pages : 550 pages
Book Rating : 4.:/5 (586 download)
Download or read book Check-list of Birds of the World written by James Lee Peters and published by . This book was released on 1987 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martin Lewis Hall Thomas
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ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.:/5 (318 download)
Download or read book Marine and Coastal Systems of the Quoddy Region, New Brunswick written by Martin Lewis Hall Thomas and published by . This book was released on 1983 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes the main marine and coastal biological systems of Passamaquoddy Bay and adjacent waters and the oceanographic and meteorological characteristics of the area. Subject areas begin with meteorolgy and oceanography. The second group covers the intertidal systems with chapters on rocky intertidal shores, rock pools, coarse sedimentary shores and salt marshes. The third general section covers hard and sedimentary sublittoral habitats. Following chapters discuss pelagic systems under the headings fishes, phytoplankton, larger zooplankton, and microzooplankton. Three chapters deal with the birds, amphibians and reptiles, and marine mammals. Finally coastal vegetation is described.
Author : Harold Douglas Pratt
Publisher :
ISBN 13 : 9780691023991
Total Pages : 409 pages
Book Rating : 4.0/5 (239 download)
Download or read book A Field Guide to the Birds of Hawaii and the Tropical Pacific written by Harold Douglas Pratt and published by . This book was released on 1987 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first field guide to the identification of the birds of the islands of the tropical Pacific, including the Hawaiian Islands, Fiji, Samoa, Tonga, southeastern Polynesia, and Micronesia. It is intended both as a reference for the expert and as an introduction to birding in the region for the novice. Small enough to be carried afield, it contains much previously unpublished information about behavior, vocalizations, ecology, and distribution. The forty-five color plates depict all plumages of all bird species that breed in the islands, as well as of those that regularly visit them and the surrounding oceans, and of most species believed to be extinct on the islands. Black-and-white figures show many of the rarer visitors. Introductory sections discuss the tropical Pacific as an environment for birds, problems of birding on islands, and bird conservation. Appendixes include maps of the island groups and a thorough bibliography.
Author : Thomas Edgar Musselman
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Birds of Illinois written by Thomas Edgar Musselman and published by . This book was released on 1922 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert A. Cannings
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.F/5 ( download)
Download or read book Birds of the Okanagan Valley, British Columbia written by Robert A. Cannings and published by . This book was released on 1987 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Margaret Elizabeth Brown (M.S. in ecology)
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (58 download)
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 : Michael S. Rodway
Publisher : Library and Archives Canada = Bibliothèque et Archives Canada
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.E/5 ( download)
Download or read book Timing of Pairing in Harlequin Ducks written by Michael S. Rodway and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2003 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Heidi M. Regehr
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.E/5 ( download)
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.
Author : RENEW (Canada). Harlequin Duck (eastern North American population) Recovery Team
Publisher :
ISBN 13 : 9780662209621
Total Pages : 30 pages
Book Rating : 4.2/5 (96 download)
Download or read book National Recovery Plan for the Harlequin Duck in Eastern North America written by RENEW (Canada). Harlequin Duck (eastern North American population) Recovery Team and published by . This book was released on 1995 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel Esler
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.E/5 ( download)
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
Author : N. Beth (Norma Beth) MacCallum
Publisher :
ISBN 13 : 9780778517801
Total Pages : 38 pages
Book Rating : 4.5/5 (178 download)
Download or read book Status of the Harlequin Duck (Histrionicus Histrionicus) in Alberta written by N. Beth (Norma Beth) MacCallum and published by . This book was released on 2001 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harlequin Duck Surveys in Western Montana written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Results of the 1990 Survey for Harlequin Ducks (Histrionicus Histrionicus) on the Kootenai National Forest, Montana and Parts of the Lolo National Forest, Montana written by and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Ian Goudie
Publisher : Published for the Pacific Seabird Group by Canadian Wildlife Service
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (319 download)
Download or read book Behaviour and Ecology of Sea Ducks written by R. Ian Goudie and published by Published for the Pacific Seabird Group by Canadian Wildlife Service. This book was released on 1999 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains papers presented at a conference on sea ducks, a group of waterfowl exhibiting dramatic ornate plumages and life history strategies that are more akin to sea birds than to other species of ducks. Topics of the papers include: behaviour of harlequin ducks and scoters; productivity of breeding harlequin ducks; time budgets of surf scoter broods; habitat associations of nesting spectacled eiders; periodic non-breeding of Steller's eiders; philopatry of moulting harlequin ducks; foraging strategies and habitat use; distribution of scoters and eiders in the St. Lawrence estuary; and the eastern population of Barrow's goldeneye. Appendices include abstracts of nine other papers.
Author : Neville William Cayley
Publisher :
ISBN 13 : 9780987070104
Total Pages : 804 pages
Book Rating : 4.0/5 (71 download)
Download or read book What Bird Is That? written by Neville William Cayley and published by . This book was released on 2011 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neville Cayley's What Bird is That? is Australia's most popular bird-identification guide. This comprehensive and authoritative field guide, now in its second edition, has been fully revised and updated by prominent ornithologist Terence Lindsey, who has added more than 30 new species and included additional information on identification and breeding. Each bird is illustrated in full colour.
