Download or read book Ecology and Management of Cowbirds and Their Hosts written by James N. M. Smith and published by University of Texas Press. This book was released on 2014-09-05 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past two centuries, cowbirds have increased in numbers and extended their range across North America, while many of the native songbird species whose nests they parasitize to raise their young have declined. This timely book collects forty essays by most of the principal authorities on the biology and management of cowbirds. The book's goals are to explore the biology of cowbirds, the threats they pose to host species and populations, and the management programs that are being undertaken to minimize these threats. The book is organized into five sections, each with an extended editors' introduction that places the contributions in a broad, up-to-date setting. The sections cover: The changing abundance of cowbirds and the ways in which their numbers can be estimated. Host choice by cowbirds, the negative effects of cowbirds on particular host species, and the daily patterns of cowbird behavior. Behavioral interactions between cowbirds and specific host species. Patterns of cowbird abundance and host use across varying landscapes. Management programs designed to control cowbirds and protect threatened songbirds.
Download or read book Cowbirds and Other Brood Parasites written by Catherine P. Ortega and published by University of Arizona Press. This book was released on 1998-09 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brown-headed Cowbird is known to use the nests of more than 200 other bird species, and cowbirds in general are believed to play a role in the decline of some migratory songbird populations. These brood parasites—birds that lay their eggs in the nests of others—have long flourished in North America. In this timely book, Catherine Ortega summarizes and synthesizes a wealth of information on cowbirds from around the world that has appeared since the publication of Herbert Friedmann's classic 1929 monograph on these birds. Most of this information has appeared in the last quarter-century and reflects advances in our understanding of how brood parasitism influences, and is influenced by, host species. Ortega shows that in order to manage cowbirds without further damaging delicate balances in host-parasite relationships, it is necessary to understand such factors as behavior, reproduction, population dynamics, and response to landscape patterns. She examines and explains the origin, evolution, and costs of brood parasitism, and she discusses the philosophical and ecological considerations regarding the management of cowbirds—a controversial issue because of their perceived influence on threatened and endangered birds. Because brood parasitism has evolved independently in various bird families, information on this adaptive strategy is of great ecological interest and considerable value to wildlife management. Cowbirds and Other Brood Parasites is an important reference on these creatures that enhances our understanding of both their behavior and their part in the natural world.
Download or read book Cowbirds and Other Brood Parasites written by Catherine P. Ortega and published by University of Arizona Press. This book was released on 2023-01-17 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brown-headed Cowbird is known to use the nests of more than 200 other bird species, and cowbirds in general are believed to play a role in the decline of some migratory songbird populations. These brood parasites—birds that lay their eggs in the nests of others—have long flourished in North America. In this timely book, Catherine Ortega summarizes and synthesizes a wealth of information on cowbirds from around the world that has appeared since the publication of Herbert Friedmann's classic 1929 monograph on these birds. Most of this information has appeared in the last quarter-century and reflects advances in our understanding of how brood parasitism influences, and is influenced by, host species. Ortega shows that in order to manage cowbirds without further damaging delicate balances in host-parasite relationships, it is necessary to understand such factors as behavior, reproduction, population dynamics, and response to landscape patterns. She examines and explains the origin, evolution, and costs of brood parasitism, and she discusses the philosophical and ecological considerations regarding the management of cowbirds—a controversial issue because of their perceived influence on threatened and endangered birds. Because brood parasitism has evolved independently in various bird families, information on this adaptive strategy is of great ecological interest and considerable value to wildlife management. Cowbirds and Other Brood Parasites is an important reference on these creatures that enhances our understanding of both their behavior and their part in the natural world.
Download or read book Cuckoos Cowbirds and Other Cheats written by Nick Davies and published by A&C Black. This book was released on 2010-09-30 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fascinating study describes the natural histories of these brood parasites and examines many of the exciting questions they raise about the evolution of cheating and the arms race between parasites and their prey. Brood parasites fill their armoury with adaptations including exquisite egg mimicry, rapid laying, ejection of host eggs, murder of host young, chick mimicry and manipulative begging behaviour: ploys shown by recent research to have evolved in response to host defence behaviour or through competition among the parasites themselves. While many host species appear defenceless, accepting parasite eggs quite unlike their own, many are more discriminating against odd-looking eggs and some have evolved the ability to discriminate against odd-looking chicks as well. How is this arms race conducted? Will defenceless hosts develop defences in time, or are there constraints which limit the evolution and perfection of host defences? And why are so few species obliged only to lay eggs in host nests? Have host defences limited the success of brood parasitism, or is it in fact much more common than we suspect, but occurring mainly when birds parasitize the nest of their own kind? All of these puzzles are examined in descriptions of the natural history of each of the groups of parasites in turn. Here is a book with wide appeal, both to amateur naturalists fascinated by this most singular and macabre of behaviours and by ornithologists and ecologists interested in the evolution of ecology and behaviour. The story takes us from the classic field work by pioneer ornithologists such as Edgar Chance, Stuart Baker, Herbert Friedmann and others, through to the experimental field work and molecular techniques of today's leading scientists. We visit brood parasites in Europe, Asia, Japan, Africa, Australasia, and North and South America, to look at some of the world's most interesting birds and some of biology's most interesting questions, many of which still beg answers from ornithologists in the future. Brilliant illustrations by David Quinn illuminate the species discussed, showing many behaviours never before illustrated and conveying the thrill of watching these astonishing birds in the wild.
Download or read book The Cowbirds written by Charles Bendire and published by . This book was released on 1895 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Avian Brood Parasitism written by Manuel Soler and published by Springer. This book was released on 2018-05-02 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brood parasitism has become one of the most flourishing areas of research in evolutionary ecology and one of the best model systems for investigating coevolution. This subject has undergone remarkable advances during the last two decades, but has not been covered by any book in the 21st century. This book offers a comprehensive and up-to-date overview of the fascinating field of avian brood parasitism. The topics covered include conspecific brood parasitism; evolution and phylogenetic history of avian brood parasites; parasitic behaviour used by brood parasites; adaptations and counter-adaptations of brood parasites and their hosts at every stage of the breeding cycle (before laying, egg, chick and fledgling stages); factors affecting the evolution of host defences and parasitic attacks; the role of phenotypic plasticity in host defences; mechanisms driving egg recognition and rejection; evolution of nest sharing or nest killing by brood parasite chicks; begging behaviour in parasitized nests and food delivery by host adults; and recognition of conspecifics by juvenile brood parasites. This volume provides a comprehensive reference resource for readers and researchers with an interest in birds, behaviour and evolution, as well as a source of hypotheses and predictions for future investigations into this dynamic subject.
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lake Tahoe Watershed Assessment Appendixes written by and published by . This book was released on 2000 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cowbirds written by Herbert Friedmann and published by . This book was released on 1929 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior of Brown headed Cowbirds Foraging with American Bison and Insect Communities of a New Mexico Shortgrass Prairie written by Elisabeth M. Webster and published by . This book was released on 2005 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Host Relations of the Parasitic Cowbirds written by Herbert Friedmann and published by . This book was released on 1963 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cowbirds are an ideal group in which to study the biology of brood parasitism; within the six included species there are displayed all stages of the development of this mode of reproduction ranging from that of the non-parasitic bay-wing through those of the completely parasitic screaming, shiny, brown-headed, bronzed, and giant cowbirds. The present report deals only with their host relationships, as this is the aspect of their biology in which our knowledge has shown the greatest increase since the author's discussion was published in 1929.
Download or read book The O logist written by and published by . This book was released on 1922 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Young Oologist written by and published by . This book was released on 1921 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cognitive Challenges for Brood parasitic Cowbirds written by Mark Erno Hauber and published by . This book was released on 2002 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observations of Juvenile Brown headed Cowbirds and an Hypothesis on Species Recognition written by George Emery Wright and published by . This book was released on 1972 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
