Download or read book Nesting Ecology of White throated Sparrows Zonotrichia Albicollis written by Melissa Olmstead and published by . This book was released on 2013 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of nesting success is one of the most widely-used methods for examining the factors governing recruitment in birds. Many ecological influences act together to increase or decrease nesting success, and knowledge of these mechanisms is crucial for determining the habitat or conservation requirements of a given species. One ecological influence is the timing of breeding, which in many species is related to a decline in nest success later in the breeding season. Much of the research on this subject has focused on cavity-nesting species, and the hypothesis that this seasonal decline is caused by a mismatch between clutch-initiation date and peak food availability for young. I tested this hypothesis in a population of white-throated sparrows ( Zonotrichia albicollis ) in Algonquin Provincial Park, Ontario, and I offer the alternate hypothesis that this decline may be caused by increased predation later in the season. Another influence on nest survival is disturbance caused by habitat management, such as the use of prescribed fire to conserve open- and early-successional habitats. While the goal of these restoration initiatives is to maintain landscape heterogeneity, the level of disturbance required to improve a habitat cannot exceed the tolerance of target species. Much of the research on this subject has focused on community-level studies quantifying the change in species abundances after a fire event. These studies capture only the most coarse-grained effects of fire, and may not be used to elucidate the mechanisms driving these changes in population size. I investigate the effect of spring burning on the nesting success of a single species, white-throated sparrows, and reveal that, while overall nesting success is not affected, fire has a substantial impact on nest site selection. This has implications for future controlled burn initiatives, since a matrix of suitable nesting habitat must be left untouched in order to allow breeding in the first year after the burn. Observing the same population in both a natural and managed system represents a valuable contribution to our knowledge of the effects of management strategies on avian nesting success.

Download or read book Some Aspects of the Breeding Biology of the White throated Sparrow Zonotrichia Albicollis Gmelin I The Nesting Cycle II The Nesting Habitat written by James K. Lowther and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impacts of Bloodborne Pathogen Infections on Breeding Ecology and Success in White throated Sparrows Zonotrichia Albicollis written by and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Bloodborne pathogens have significant and persistent impacts on avian populations worldwide, including decreased long-term survival and population size. Existing research indicates that chronic pathogen infections may have negative impacts on nesting success, such as decreased numbers of offspring, hatching probability, and fledging success. In species with multiple reproductive strategies, pathogen infections may have different impacts based on the role of the infected parent. White-throated Sparrows are a polymorphic species that mate disassortatively and display alternative reproductive strategies associated with color morph. White-striped birds are more aggressive, more promiscuous, and less parental than their tan- striped counterparts. I examined the reproductive outcomes of a population of White-throated Sparrows and investigated the factors that influenced variation in reproductive success within the population. I specifically focused on the influence of pathogen infection within the population and how infection interacts with the color morph of the infected parent. I found that bloodborne pathogen infection in white-striped, but not tan-striped, parents was associated with decreased nesting success. I also found an apparent association between pathogen infection in both parents and larger and heavier nestlings, which suggests a trade-off between prospective survival and reproductive effort."--Abstract.

Download or read book Pair Compatibility in White throated Sparrows Zonotrichia Albicollis written by Nina Francesca Langsam and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Migration Ecology of Birds written by Ian Newton and published by Elsevier. This book was released on 2023-12-02 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Migration Ecology of Birds, Second Edition covers all aspects of this absorbing subject, including migratory processes, problems of navigation and vagrancy, timing and physiological control of migration, large-scale movement patterns, the effects of recent climate change, the problems that migrants face, and the factors that limit their populations. This book provides a thorough and in-depth review of the state of the science, with the text supplemented by abundant tables, maps and diagrams. Written by a world-renowned avian ecology and migration researcher, this book reveals the extraordinary adaptability of birds to the variable and changing conditions across the globe. This book represents the most updated and detailed review of bird migration, its evolution, ecology and bird physiology. Written in a clear and readable style, it will appeal not only to migration researchers in the field and ornithologists, but to anyone with an interest in this fascinating subject. - Features updated and trending ecological aspects, including various types of bird movements, dispersal and nomadism, and how they relate to food supplies and other external conditions - Contains numerous tables, maps, diagrams, a glossary, and a bibliography of more than 3,000 up-to-date references - Written by an active researcher with a distinguished career in avian ecology, including migration research

Download or read book Fire Ecology written by Henry A. Wright and published by John Wiley & Sons. This book was released on 1982-03-18 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regional Silviculture of the United States, 2nd Edition John W. Barrett This is the only regional silviculture text now on the market. It assesses the significant biological, physical, and economic qualities of forest regions in the continental U.S., and their effect on silviculture practices. The first chapter provides an overview of the forests of the U.S. and introduces the topic of social and institutional constraints on silviculture. Subsequent chapters each deal with a specific forest region, are written by a person intimately acquainted with the locality, and follow a regular outline to provide cohesion and facilitate regional comparisons. 1980 551 pp. Forest Ecology, 3rd Edition Stephen H. Spurr and Burton V. Barnes The growing interest and literature in this field created a need for a fresh updating of this classic text. It remains a comprehensive yet highly readable account of real world forests, including ecological aspects of successful forest management. Broad coverage embraces genetics and variation, environmental factors, site, community relations, ecosystem studies, glacial forest history, post-settlement history, compostition and succession. 1980 687 pp. Wildlife Biology, 2nd Edition Raymond F. Dasmann This updated and revised edition of the standard introductory text brings together the principles of ecology and population biology and the practice of wildlife conservation and management. It presents basic information on the value and present status of wild animal life, including a history of human relationships with and attitudes toward wildlife. Examines wildlife within the context of ecosystems, indicating why single-species approaches to conservation and management often fail. 1981 212 pp.

Download or read book The Foraging Ecology of Nesting Black throated Sparrows written by Kevin J. Zimmer and published by . This book was released on 1983 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology Abstracts written by and published by . This book was released on 1997 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coverage: 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.

Download or read book The Role of Organismal Oxidative Stress in the Ecology and Life History Evolution of Animals written by David Costantini and published by Springer Nature. This book was released on with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nesting Biology and Population Ecology of Yellow Wagtails at Cape Romanzof Alaska written by Heather Moore and published by . This book was released on 2000 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Impact of Weather on the Behavior and Ecology of Birds written by Stuart Peter Sharp and published by Frontiers Media SA. This book was released on 2021-12-29 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nest and Roost Site Selection in Mountain White Crowned Sparrows Zonotrichia Leucophrys Oriantha in the Central Sierra Nevada written by Judith L. Sanders and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1976 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Birds of the Rocky Mountains written by Paul A. Johnsgard and published by U of Nebraska Press. This book was released on 1992-03-01 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This comprehensive reference work . . . describes in detail 354 species found in a 353,000 square mile area, from the 40th parallel in Colorado north to the 52nd parallel in Canada; from the western border of Idaho to the eastern boundaries of Montana and Wyoming. . . . Here a visitor to any of the major national parks in the Rocky Mountain region can have quick access to the abundance and seasonality of a given species. In addition, a comprehensive introduction describes the predominant life zones of the region, and over a dozen maps illustrate such significant features as precipitation patterns, vegetation community types, and major physiographic provinces. The book is well written and an essential guide for the birder who visits the Rockies."?Indiana Audubon Quarterly Birds as common as the bobwhite and blue-winged teal and as rarely seen as the great egret are featured in Paul A. Johnsgard's informative book, profusely illustrated with drawings and color plates.

Download or read book The Atlas of Breeding Birds in New York State written by Robert F. Andrle and published by Cornell University Press. This book was released on 1988 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: This generously illustrated, easy-to-use reference gives instant information on 238 birds that are native to New York State. The core of the atlas is a series of accounts of each species, each account including a distribution map with possible, probable, or confirmed breeding. Facing each map is an explanatory page of text that covers a number of topics: abundance, historical and current distirbution, habitat, and nest description and location. On the same page is an illustration of the bird, often with its nest and young.

Download or read book The Comparative Breeding Ecology of the Harris Sparrow Zonotrichia Querula and White crowned Sparrow Zonotrichia Leucorphrys in the Northwest Territories Canada microform written by Christopher John Norment and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1992 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral thesis addressing five aspects of the breeding ecology of Harris' Sparrows (Zonotrichia querula) and White-crowned Sparrows (Zonotrichia leucophrys) in the Northwest Territories, Canada: basic breeding biology, nest-site selection, nest attendance, foraging ecology, and temporal variation in life-history traits.

Download or read book Territorial Behavior of White throated Sparrows Zonotrichia Albicollis with Special Emphasis on Song written by Frederick E. Wasserman and published by . This book was released on 1977 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: