Food Habits Of North American Diving Ducks
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Food Habits Of North American Diving Ducks
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Author : Clarence Cottam
language : en
Publisher: Washington : United States. Department of Agriculture
Release Date : 1939
Food Habits Of North American Diving Ducks written by Clarence Cottam and has been published by Washington : United States. Department of Agriculture this book supported file pdf, txt, epub, kindle and other format this book has been release on 1939 with Ducks categories.
Food Habits Of North American Diving Ducks
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Author : Clarence Cottam
language : en
Publisher:
Release Date : 1936
Food Habits Of North American Diving Ducks written by Clarence Cottam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1936 with categories.
The North American Whistling Ducks Pochards And Stifftails
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Author : Paul Johnsgard
language : en
Publisher: Lulu.com
Release Date : 2017-03-24
The North American Whistling Ducks Pochards And Stifftails written by Paul Johnsgard and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-24 with Science categories.
Although the 12 species representing three waterfowl tribes described in this volume are not closely related, they fortuitously provide an instructive example of adaptive evolutionary radiation within the much larger waterfowl lineage (the family Anatidae), especially as to their divergent morphologies, life histories, and social behaviors. The whistling-ducks (Dendrocygna), with three known North American species, are notable for their permanent pair-bonds, extended biparental family care, and strong social cohesion. In contrast, males of the five typical pochards of North American diving ducks (Aythya) establish monogamous pair-bonds that are maintained only long enough to assure that the female's eggs are fertilized. The endpoint of this behavioral gradient, promiscuity or polygyny, exists among at least some of the typical stifftails (Oxyura). Such diverse reproductive strategies have exerted powerful evolutionary influences on interspecies variations in sexual dimorphism, sexual behavior, anatomy, ecology, and other traits. This volume includes more than 63,000 words, plus some 200 maps, photos, drawings, and sketches, and nearly 650 literature citations. It is the last of five volumes that describe all 55 waterfowl species that have been historically documented in North America; collectively, the volumes total over 300,000 words, with nearly 3,000 literature citations, and more than 600 maps, photos, drawings, and sketches.
Conservation Of Marine Birds Of Northern North America
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Author : James C. Bartonek
language : en
Publisher:
Release Date : 1979
Conservation Of Marine Birds Of Northern North America written by James C. Bartonek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Birds categories.
Attempts to identify problems and needed information and programs necessary for conservation of marine birds of northern North America.
Conservation Of Marine Birds Of Northern North America
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Author : Various
language : en
Publisher: Good Press
Release Date : 2023-10-20
Conservation Of Marine Birds Of Northern North America written by Various and has been published by Good Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-20 with Fiction categories.
"Conservation of Marine Birds of Northern North America: Papers from the International Symposium Held at the Seattle Hyatt House" is a significant compilation of papers from an international symposium dedicated to the conservation of marine birds in the northern North American region. This publication serves as a vital resource for researchers, conservationists, and anyone interested in the protection and preservation of marine bird species. The symposium's contributions shed light on critical issues related to these avian populations, making it a valuable reference for understanding and addressing conservation challenges.
Food Habits Of The American Coot
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Author : John Courts Jones
language : en
Publisher:
Release Date : 1940
Food Habits Of The American Coot written by John Courts Jones and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with American coot categories.
Habitat Management For Migrating And Wintering Waterfowl In North America
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Author : Loren M. Smith
language : en
Publisher: Texas Tech University Press
Release Date : 1989
Habitat Management For Migrating And Wintering Waterfowl In North America written by Loren M. Smith and has been published by Texas Tech University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Business & Economics categories.
This important compilation on habitat management for waterfowl throughout North America addresses practicing waterfowl biologists and managers, researchers, and students of waterfowl ecology and management.
Technical Bulletin
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Author :
language : en
Publisher:
Release Date : 1940
Technical Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with Abortion in animals categories.
Experiment Station Record
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Author : United States. Office of Experiment Stations
language : en
Publisher:
Release Date : 1939
Experiment Station Record written by United States. Office of Experiment Stations and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1939 with Agricultural experiment stations categories.
Experiment Station Record
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Author : U.S. Office of Experiment Stations
language : en
Publisher:
Release Date : 1940
Experiment Station Record written by U.S. Office of Experiment Stations and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with Agricultural experiment stations categories.
