Genetics Abstracts
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Published: 1995
Total Pages: 634
ISBN-13:
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Author: William G. Eberhard
Publisher: Princeton University Press
Published: 1996
Total Pages: 532
ISBN-13: 9780691010854
DOWNLOAD EBOOKEvidence from various fields indicates that such selectivity by females may be the norm rather than the exception. Because most postcopulatory competition among males for paternity is played out within the bodies of females, female behavior, morphology, and physiology probably often influence male success in these contests, Eberhard draws examples from a diversity of organisms, ranging from ctenophores to scorpions, nematodes to frogs, and crickets to humans.
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Published: 1997
Total Pages: 1408
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Published: 1996
Total Pages: 182
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Publisher:
Published: 1996
Total Pages: 468
ISBN-13:
DOWNLOAD EBOOKCoverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.
Author: Robert J. Etches
Publisher: Cabi
Published: 1996
Total Pages: 0
ISBN-13: 9780851987385
DOWNLOAD EBOOKThis book describes the biological basis of reproduction in poultry and places this information in the context of poultry production. The author has collated and integrated recent information from a variety of sources in order to highlight the principles of the reproductive biology of poultry. This is achieved through a well-illustrated and tabulated text which emphasizes integration rather than comprehensive literature citations. The book begins by considering the egg, proceeds to a brief description of embryonic and chick development as they relate to poultry production, and describes the physiological processes that lead to formation of the fertile egg. It concludes with a discussion of the relationship between measurements of reproductive success that are commonly used in the poultry industry and their ability to reflect the physiological processes that contribute to successful reproduction. The book is aimed at advanced undergraduates or graduate students studying animal reproduction or agriculture, as well as scientists working in the poultry industry.
Author: Paul A. Johnsgard
Publisher:
Published: 1999
Total Pages: 0
ISBN-13: 9781840371291
DOWNLOAD EBOOKAmong the most important of all bird groups, pheasants account for the most abundant domesticated species (the domestic fowl), the most extensively hunted upland game bird (the common pheasant), and some of the most spectacularly beautiful of all large birds (the giant argus). This lavishly illustrated volume gives up-to-date information on the distribution, status, and biology of all 49 species, with special attention paid to those that are vulnerable, rare, or threatened. Including range maps and identification keys, "The Pheasants of the World" is a comprehensive reference not only for ornithologists and conservationists seeking to ensure the survival of the group, but also for aviculturists and others who want to better understand the nature of these splendid birds.
Author: Charles F. Thompson
Publisher: Springer Science & Business Media
Published: 2010-09-09
Total Pages: 201
ISBN-13: 1441964215
DOWNLOAD EBOOKCurrent Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.
Author: Stephen M. Shuster
Publisher: Princeton University Press
Published: 2019-12-31
Total Pages: 546
ISBN-13: 0691206880
DOWNLOAD EBOOKThis book presents the first unified conceptual and statistical framework for understanding the evolution of reproductive strategies. Using the concept of the opportunity for sexual selection, the authors illustrate how and why sexual selection, though restricted to one sex and opposed in the other, is one of the strongest and fastest of all evolutionary forces. They offer a statistical framework for studying mating system evolution and apply it to patterns of alternative mating strategies. In doing so, they provide a method for quantifying how the strength of sexual selection is affected by the ecological and life history processes that influence females' spatial and temporal clustering and reproductive schedules. Directly challenging verbal evolutionary models that attempt to explain reproductive behavior without quantitative reference to evolutionary genetics, this book establishes a more solid theoretical foundation for the field. Among the weaknesses the authors find in the existing data is the apparent ubiquity of condition-dependent mating tactics. They identify factors likely to contribute to the evolution of alternative mating strategies--which they argue are more common than generally believed--and illustrate how to measure the strength of selection acting on them. Lastly, they offer predictions on the covariation of mating systems and strategies, consider the underlying developmental biology behind male polyphenism, and propose directions for future research. Informed by genetics, this is a comprehensive and rigorous new approach to explaining mating systems and strategies that will influence a wide swath of evolutionary biology.
Author: Allison B. Kaufman
Publisher: Cambridge University Press
Published: 2021-07-22
Total Pages: 1032
ISBN-13: 110856125X
DOWNLOAD EBOOKThis handbook lays out the science behind how animals think, remember, create, calculate, and remember. It provides concise overviews on major areas of study such as animal communication and language, memory and recall, social cognition, social learning and teaching, numerical and quantitative abilities, as well as innovation and problem solving. The chapters also explore more nuanced topics in greater detail, showing how the research was conducted and how it can be used for further study. The authors range from academics working in renowned university departments to those from research institutions and practitioners in zoos. The volume encompasses a wide variety of species, ensuring the breadth of the field is explored.