Download or read book Character Variation and Evolution of Sibling Species in the Empidonax Difficilis flavescens Complex Aves Tyrannidae written by Ned K. Johnson and published by Univ of California Press. This book was released on 1980-01-01 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sibling Species of Titmice in the Parus Inornatus Complex Aves written by Carla Cicero and published by Univ of California Press. This book was released on 1996-04-08 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a comprehensive investigation of macrogeographic variation in the Plain Titmouse (Parus inornatus) complex in western North America, the author assessed population-level patterns of differentiation in morphometric, colorimetric, allozymic, mtDNA, and vocal characters. These suites of traits showed broad geographic concordance, distinguishing Pacific slope from interior populations. These two groups of populations are treated as sibling species.
Download or read book Evolutionary Differentiation in Morphology Vocalizations and Allozymes Among Nomadic Sibling Species in the North American Red Crossbill Loxia Curvirostra Complex written by Jeffrey G. Groth and published by Univ of California Press. This book was released on 1993-08-16 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highly variable North American red crossbill complex has presented one of the most controversial problems in avian systematics. Although crossbills wander nomadically and breed all year, they have not become homogenized in bill and body size. This study suggests that this crossbill complex contains several distinctive sibling species that breed sympatrically and show ecological differences.
Download or read book Birds of British Columbia Volume 3 written by Wayne Campbell and published by UBC Press. This book was released on 2007-10-01 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: British Columbia has one of the richest assemblages of bird species in the world. The four volumes of The Birds of British Columbia provide unprecedented coverage of this region's birds, presenting a wealth of information on the ornithological history, habitat, breeding habits, migratory movements, seasonality, and distribution patterns of each of the 472 species of birds. This third volume, covering the first half of the passerines, builds on the authoritative format of the previous bestselling volumes. It contains 89 species, including common ones such as swallows, jays, crows, wrens, thrushes, and starlings. The text is supported by hundreds of full-colour pictures, including unique habitat photographs, detailed distribution maps, and beautiful illustrations of the birds, their nests, eggs, and young. The Birds of British Columbia is a complete reference work for bird-watchers, ornithologists, and naturalists who want in-depth information on the province's regularly occurring and rare birds.
Download or read book Evolution and Learning written by R. C. Bolles and published by Psychology Press. This book was released on 2013-08-21 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1987. Evolutionary theory and learning theory have for a long time developed in quite separate traditions. The purpose of this book is partly to celebrate new developments in the two theories by displaying some of the work of this new breed of scholar. It is the editors’ hope that they can encourage others to look more carefully at the mechanisms that make learning an evolutionary consideration and evolution a learning theory consideration.
Download or read book Birds of the Salton Sea written by Michael A. Patten and published by Univ of California Press. This book was released on 2003-08-19 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Salton Sea, California's largest inland lake, supports a huge bird population that is among the most concentrated and most diverse in the world. Sadly this environment is close to collapse from several environmental threats. This book describes the more than 450 species and sub-species.
Download or read book Handbook of Bird Biology written by Irby J. Lovette and published by John Wiley & Sons. This book was released on 2016-09-19 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected by Forbes.com as one of the 12 best books about birds and birding in 2016 This much-anticipated third edition of the Handbook of Bird Biology is an essential and comprehensive resource for everyone interested in learning more about birds, from casual bird watchers to formal students of ornithology. Wherever you study birds your enjoyment will be enhanced by a better understanding of the incredible diversity of avian lifestyles. Arising from the renowned Cornell Lab of Ornithology and authored by a team of experts from around the world, the Handbook covers all aspects of avian diversity, behaviour, ecology, evolution, physiology, and conservation. Using examples drawn from birds found in every corner of the globe, it explores and distills the many scientific discoveries that have made birds one of our best known - and best loved - parts of the natural world. This edition has been completely revised and is presented with more than 800 full color images. It provides readers with a tool for life-long learning about birds and is suitable for bird watchers and ornithology students, as well as for ecologists, conservationists, and resource managers who work with birds. The Handbook of Bird Biology is the companion volume to the Cornell Lab’s renowned distance learning course, Ornithology: Comprehensive Bird Biology.
Download or read book The Extended Specimen written by Michael S. Webster and published by CRC Press. This book was released on 2017-07-20 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Extended Specimen highlights the research potential for ornithological specimens, and is meant to encourage ornithologists poised to initiate a renaissance in collections-based ornithological research. Contributors illustrate how collections and specimens are used in novel ways by adopting emerging new technologies and analytical techniques. Case studies use museum specimens and emerging and non-traditional types of specimens, which are developing new methods for making biological collections more accessible and "usable" for ornithological researchers. Published in collaboration with and on behalf of The American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series documents the power of ornithological collections to address key research questions of global importance.
Download or read book Geographic Variation and Speciation in the Torrent Salamanders of the Genus Rhyacotriton Caudata Rhyacotritonidae written by David A. Good and published by Univ of California Press. This book was released on 1992-01-01 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors analyze the morphological, biochemical, and ecological differentiation of salamanders endemic to the Pacific Northwest, the Torrent Salamanders, Rhyacotriton. The authors analyze the morphological, biochemical, and ecological differentiation of salamanders endemic to the Pacific Northwest, the Torrent Salamanders, Rhyacotriton.
Download or read book Birds of British Columbia Volume 4 written by Wayne Campbell and published by UBC Press. This book was released on 2001-02-23 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: This much-awaited final volume of The Birds of British Columbia completes what some have called one of the most important regional ornithological works in North America. It is the culmination of more than 25 years of effort by the authors who, with the assistance of thousands of dedicated volunteers throughout the province, have created the basic reference work on the avifauna of British Columbia. Volume 4 covers the last half of the passerines and describes 102 species, including the warblers, sparrows, grosbeaks, blackbirds, and finches. The text builds upon the authoritative format of the previous volumes and is supported by hundreds of full-colour illustrations, including detailed distribution maps, unique habitat shots, and beautiful photographs of the birds, their nests, eggs, and young. In addition, a species update lists and describes 27 species of birds new to the province since the first three volumes were published. The book concludes with Synopsis: The Birds of British Columbia into the 21st Century, which synthesizes data and information from all four volumes and looks at the conservation challenges facing birds in the new millennium. The four volumes in The Birds of British Columbia provide unprecedented coverage of the region's birds, presenting a wealth of information on the ornithological history, regional environment, habitat, breeding habits, migratory movements, seasonality and distribution patterns of 472 species of birds. It is the complete reference work for birdwatchers, ornithologists and naturalists.
Download or read book Birder s Handbook written by Paul Ehrlich and published by Simon and Schuster. This book was released on 1988 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: On t.p.: A field guide to the natural history of North American birds : including all species that regularly breed north of Mexico.
Download or read book Neotropical Birds written by Douglas F. Stotz and published by University of Chicago Press. This book was released on 1996-06 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unparalleled wealth of finely detailed ecological information on Neotropical bird communities will prove invaluable to all Neotropical wildlife managers, conservation biologists, and serious birders.
Download or read book Current Ornithology written by Richard Johnston and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: If it is still true that more than 80% of the ornithologists in North America are primarily interested or engaged in ecological studies on birds (J. R. King and W. J. Bock, Final Report of the Workshop on a National Plan For Ornithology, 1978), then Volume 3 of Current Orni thology is preadapted for their consideration. All but one article in this volume are somehow concerned with the ecological aspects of the bi ology of birds. Variation in the scope of topical coverage is relatively broad, and includes conservation, reproduction, behavior, community structure, and evolutionary ecology. Three reviews concern the pervasive effects of man and industry on various bird populations of the world. Risebrough provides a de tailed description of the relationships between pesticides and bird pop ulations. Morrison ass es ses aspects of bird population numbers as in dicators of environmental change, and Temple outlines current research on endangered species. The broad spectrum of reproductive ecology of birds is variously treated in this volume. Jehl and Murray explore sexual selection and some of the resulting complexities in the evolution of sexual size di morphism, primarily in shorebirds. Lawton and Lawton are concerned with the relationships between social behavior and breeding systems in which variation is found in the age at which reproduction is first undertaken. Oring examines the wide-ranging variation in polyandrous breeding systems in birds, while Rohwer is concerned with adoption versus infanticide in birds, and their relationships to reproductive fit ness.
Download or read book Community Ecology of Neotropical Kingfishers written by James Vanderbeek Remsen and published by Univ of California Press. This book was released on 1991-01-01 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: To determine the mechanisms for species-spacing in a group of closely related bird species--namely, five species of Neotropical Kingfishers--the author studied their feeding behavior and diet at three sites, two in Bolivia and one in Colombia. He found that changes in number of coexisting species were correlated with changes in abundance and size distribution of their prey, surface-dwelling fishes.
Download or read book Phylogenetic Relationships Among Gerrhonotine Lizards written by David A. Good and published by Univ of California Press. This book was released on 1988-01-01 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study the author analyzes the phylogenetic relationships among the genera and species of alligator lizards (Squamata: Anguidae: Gerrhonotinae). The subfamily consists of six monophyletic genera: Coloptychon, Gerrhonotus, Elgaria, Barisia, Mesaspis, and Abronia. The author reviews the history of gerrhonotine taxonomy, provides a key to, and diagnoses of, all gerrhonotine taxa, and discusses taxonomic and biogeographic implications of gerrhonotine relationships. In this study the author analyzes the phylogenetic relationships among the genera and species of alligator lizards (Squamata: Anguidae: Gerrhonotinae). The subfamily consists of six monophyletic genera: Coloptychon, Gerrhonotus, Elgaria, Barisia, Mesaspis, and Abronia. The author reviews the history of gerrhonotine taxonomy, provides a key to, and diagnoses of, all gerrhonotine taxa, and discusses taxonomic and biogeographic implications of gerrhonotine relationships.
Download or read book Wildlife Review written by and published by . This book was released on 1983 with total page 1266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phylogenetic Relationships Among Advanced Snakes written by John E. Cadle and published by Univ of California Press. This book was released on 1988-01-01 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph addresses questions concerning the evolutionary history of advanced snakes using molecular phylogenetic data. Viperids are the sister group of the other clades examined. Atractaspis may share a lineage with elapids. The study concludes that, because of sampling problems, many generalizations concerning snake evolution derived from the fossil record, particularly those about the age of lineages, are probably in error.
