Download or read book The Life and Demography of the Side Blotched Lizard Uta Stansburiana written by Donald W. Tinkle and published by . This book was released on 1967 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Zealand Journal of Zoology written by and published by . This book was released on 1975-11 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Valley Validation Site Report written by Frederick B. Turner and published by . This book was released on 1972 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Homeostasis in Desert Reptiles written by Sidney Donald Bradshaw and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deserts, whether hot or cold, are considered to be one of the most difficult environments for living systems, lacking the essential free water which ac counts for approximately 60-70% of their body mass and more than 98% of their constituent atoms {Macfarlane 1978}. Amongst vertebrates, reptiles are usually thought of as the animals most adapted or suited to such environments because of their diurnal habit, based on a need for external heat, and their ability to survive far from obvious sources of water. This impression is rein forced when one examines the composition of vertebrate faunae characteristic of deserts and arid zones: reptiles predominate and they are often the only vertebrates to be found in hyper-arid areas, such as some parts of the Sahara {Monod 1973}. I recently had occasion to examine this assumption carefully, however, and was led inexorably to the conclusion that reptiles represent a particularly successful desert group, not because of their evolution of superior adaptations, but because of their possession of a basic suite of behavioural and physiologi cal characteristics that suit them uniquely to this very resource-limited environment {Bradshaw 1986a}. These fundamental reptilian characteristics are: 1. their low rates of metabolism, compared with birds and mammals, which result in extremely low rates of resource utilisation and lead to considerable economy in the handling of water 2.
Download or read book Migration of Organisms written by Ashraf M.T. Elewa and published by Springer Science & Business Media. This book was released on 2005-12-14 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do some animals migrate? How does migration affect the gene pool? This book discusses these questions and more, in light of the high evolutionary costs and risks of mass movement. The editor presents a collection of topics explaining the migration of organisms through many examples of different groups of marine and non-marine organisms, from micro-invertebrates to large mammals.
Download or read book Sexual Selection and the Descent of Man written by Bernard Campbell and published by Routledge. This book was released on 2017-07-12 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Just over one hundred and thirty years ago Charles Darwin, in The Descent of Man and Selection in Relation to Sex (1871), developed remarkably accurate conclusions about man's ancestry, based on a review of general comparative anatomy and psychology in which he regarded sexual selection as a necessary part of the evolutionary process. But the attention of biologists turned to the more general concept of natural selection, in which sexual selection plays a complex role that has been little understood. This volume significantly broadens the scope of modern evolutionary biology by looking at this important and long neglected concept of great importance. In this book, which is the first full discussion of sexual selection since 1871, leading biologists bring modern genetic theory and behavior observation to bear on the subject. The distinguished authors consider many aspects of sexual selection in many species, including man, within the context of contemporary evolutionary theory and research. The result is a remarkably original and well-rounded view of the whole concept that will be invaluable especially to students of evolution and human sexual behavior. The lucid authority of the contributors and the importance of the topic will interest all who share in man's perennial fascination with his own history. The book will be of central importance to a wide variety of professionals, including biologists, anthropologists, and geneticists. It will be an invaluable supplementary text for courses in vertebrate biology, theory of evolution, genetics, and physical anthropology. It is especially important with the emergence of alternative explanations of human development, under the rubric of creationism and doctrines of intelligent design.
Download or read book Diseases and Pathology of Reptiles written by Elliott Jacobson and published by CRC Press. This book was released on 2021-08-29 with total page 1564 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set represents a second edition of the original Infectious Diseases and Pathology of Reptiles alongside a new book that covers noninfectious diseases of reptiles. Together, these meet the need for an entirely comprehensive, authoritative single-source reference. The volumes feature color photos of normal anatomy and histology, as well as gross, light, and electron microscopic images of infectious and noninfectious diseases of reptiles. The most detailed and highly illustrated reference on the market, this two-volume set includes definitive information on every aspect of the anatomy, pathophysiology, and differential diagnosis of infectious and noninfectious diseases affecting reptiles.
Download or read book Natural Selection and Social Theory written by Robert Trivers and published by Oxford University Press, USA. This book was released on 2002 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: From scholarly journals, Trivers (anthropology and biological sciences, Rutgers U.) has selected five of his papers published between 1971 and 1976, and another five published between 1982 and 2000. He has added accounts of how they were written, and short postscripts to bring readers up to date or at least point them to more recent work on the issues discussed. Annotation (c)2003 Book News, Inc., Portland, OR (booknews.com).
Download or read book Reproductive Biology and Phylogeny of Lizards and Tuatara written by Justin L. Rheubert and published by CRC Press. This book was released on 2014-12-19 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproductive Biology and Phylogeny of Lizards and Tuatara is a remarkable compendium of chapters written by the world's leading experts from over four continents. The book begins with a chapter recounting historical discoveries in reproductive biology and a review of phylogenetics and up-to-date hypotheses concerning evolutionary relationships amon
Download or read book Methods in Chemical Ecology Volume 2 written by Kenneth F. Haynes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identification of chemicals that affect the naturally occurring interactions be tween organisms requires sophisticated chemical techniques, such as those docu mented in volume 1, in combination with effective bioassays. Without an effective bioassay, the identification becomes akin to looking for a needle in a haystack, but without any idea of what a needle looks like. To a large extent serniochemical identifications must be driven by bioassays. The design of bioassays for use in chemical ecology is governed by the sometimes conflicting objectives of ecological relevance and the need for simplic ity. Bioassay design should be based on observations of the interactions between organisms in their natural context, a theme that appears throughout this volume. As a result, this volume is as much about ecology and behavior as it is about specific methods. It is impossible to design a relevant bioassay, whether it is simple or complex, without understanding at least the fundamentals of how chemical cues or signals mediate the interaction in nature. Thus, the development of bioassay methods must be driven by an understanding of ecology and a knowledge of the natural history of the organisms under study. Given such an understanding, it is often possible to design assays that are both ecologically relevant and easy to perform.
Download or read book Journal of the Royal Society of New Zealand written by and published by . This book was released on with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hormones Brain and Behavior written by Carl Gans and published by University of Chicago Press. This book was released on 1992 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 18.
Download or read book Lizard Social Behavior written by Stanley F. Fox and published by JHU Press. This book was released on 2003-02-25 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: The evolutionary study of social behavior and the role of lizards as model organisms / Stanley F. Fox, J. Kelly McCoy and Troy A. Baird -- Variation among individuals. Introduction / Peter Marler. Intra- and intersexual variation in social behavior : effects of ontogeny, phenotype, resources, and season / Troy A. Baird, Dusti K. Timanus and Chris L. Sloan. Evolution and maintenance of social status-signaling badges : experimental manipulations in lizards / Martin J. Whiting, Kenneth A. Nagy and Philip W. Bateman. Ecological and social contexts for the evolution of alternative mating strategies / Kelly R. Zamudio and Barry Sinervo. Social behavior and antipredatory defense in lizards / William E. Cooper, Jr. -- Variation among populations. Introduction / Gordon H. Orians.
Download or read book Herpetological Communities written by Norman J. Scott and published by . This book was released on 1982 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Woodcock Ecology and Management written by Harold A. Kantrud and published by . This book was released on 1981 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Research Report written by and published by . This book was released on 1972 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Populations in a Seasonal Environment MPB 5 written by Stephen D. Fretwell and published by Princeton University Press. This book was released on 2020-03-31 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most organisms live in a seasonal environment. During their life cycles, some species face seasons of cold and heat, aridity and abundant rainfall, migration and stable residence, breeding and nonbreeding. Populations grow and decline as supplies of materials essential to their survival wax and wane. Such qualitative truths as these flow obviously from field observations. In this original monograph, Stephen Fretwell analyzes the highly complex interaction between a population and a regularly varying environment in an attempt to define and measure seasonality as a critical parameter in the general theory of population regulation. Concerned primarily with the size and the habitat distribution of populations, Professor Fretwell develops simple models that, when applied to specific populations, usually of birds, demonstrate the effect of seasonal variations on the regulation of populations. He maintains that seasonality, as a concept, is essential to a full understanding of environmental interaction. During the course of his exposition, the author offers several new hypotheses, including theories affecting the breeding, numbers, distribution, and diversity of wintering birds, and a theory affecting the body size of sparrows.
