Bird Population Studies
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Author | : Christopher M. Perrins |
Publisher | : Oxford University Press, USA |
Total Pages | : 712 |
Release | : 1991 |
Genre | : History |
ISBN | : |
There are more than one thousand species of threatened birds in the world, while many others are valued for sport and some are serious pests. This volume reviews our current understanding of avian population dynamics and explores ways in which population studies can contribute to effective conservation and management. Estimation of demographic parameters, the role of mathematical modelling, and the special problems of island populations and seabird populations are discussed. The emphasis throughout is on how bird populations are regulated under various constraints and conditions, including the impact of environmental changes.
Author | : C. John Ralph |
Publisher | : DIANE Publishing |
Total Pages | : 192 |
Release | : 1998-05 |
Genre | : |
ISBN | : 9780788143441 |
Point counts of birds are the most widely used quantitative method and involve an observer recording birds from a single point for a standardized time period. In response to the need for standardization of methods to monitor bird populations by census, researchers met to present data from various investigations working under a wide variety of conditions, and to examine various aspects of point count methodology. Statistical aspects of sampling and analysis were discussed and applied to the objectives of point counts. The final chapter presents these standards and their applications to point count methodology.
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 1991 |
Genre | : Aves |
ISBN | : |
Author | : John R. Sauer |
Publisher | : |
Total Pages | : 184 |
Release | : 1990 |
Genre | : Bird populations |
ISBN | : |
Proceedings of a workshop on the analysis of avian population trends, held April 1988 in Laurel, Maryland. Describes the design of major avian surveys, presents major analytical methods used to estimate population trends, and provides analyses of scissor-tailed flycatcher data set.
Author | : Heimo Mikkola |
Publisher | : BoD – Books on Demand |
Total Pages | : 170 |
Release | : 2021-07-21 |
Genre | : Science |
ISBN | : 1839689978 |
For many humans, birds are the most fascinating group of animals and they are definitely among the best-known and studied organisms. Thanks to global citizen science data, we know that there are some 50 billion individual birds in the world at present, which is about six birds for every human on the planet. Birds have an important role as indicators of the state of the environment, giving them high public value. Human-related global impacts such as climate changes and accelerating urbanization force extant species to continuous adaptations, population modifications, or even outright extinction. This book includes nine chapters covering such topics as bird genetics, the colour of avian plumage, conservation problems, sustainable hunting, habitat disturbance, range expansion and introductions, and long-term bird population changes and challenges. A key chapter explains the genetic rules and reasons why we have continuously more bird species in the world and why we may end up having 7,000 species more than the present 11,000 species.
Author | : Colin J. Bibby |
Publisher | : Academic Press |
Total Pages | : 276 |
Release | : 2012-12-02 |
Genre | : Science |
ISBN | : 0080984509 |
Wild birds are counted for a wide variety of reasons and by a bewildering array of methods. However, detailed descriptions of the techniques used and the rationale adopted are scattered in the literature, and the newcomer to bird census work or the experienced bird counter in search of a wider view, may well have difficulty in coming to grips with the subject as a whole. While not an end in itself, numerical and distributional census work is a fundamental part of many scientific and conservation studies, and one in which the application of given standards is vital if results are not to be distorted or applied in a misleading way. This book provides a concise guide to the various census techniques and to the opportunities and pitfalls which each entails. The common methods are described in detail, and illustrated through an abundance of diagrams showing examples of actual and theoretical census studies. Anyone with a bird census job to plan should be able to select the method best suited to the study at hand, and to apply it to best effect within the limits inherent in it and the constraints of the particular study. The Royal Society for the Protection of Birds and the British Trust for Ornithology have for many years pioneered the collaboration of amateurs and professionals in various census studies. Three members of their staff, each with extensive field experience, now pool the knowledge of these investigations to lay the groundwork for sound census work in future years.
Author | : |
Publisher | : DIANE Publishing |
Total Pages | : 47 |
Release | : |
Genre | : |
ISBN | : 1428962050 |
Author | : Deborah M. Finch |
Publisher | : |
Total Pages | : 32 |
Release | : 1991 |
Genre | : Bird populations |
ISBN | : |
This report was prepared in support of the National Fish and Wildlife Foundation's Neotropical Migratory Bird Conservation Program and the USDA Forest Service's role in the program. Recent analyses of data on forest-dwelling species, many of which are neotropical migrants, show population declines in many North American areas. The literature review summarizes current information on population trends of neotropical migratory birds and the factors affecting migrant populations on the breeding and wintering grounds. Opportunities for research, monitoring, and conservation of these migrants on Forest Service lands are discussed.
Author | : |
Publisher | : |
Total Pages | : 296 |
Release | : 1972 |
Genre | : Animal ecology |
ISBN | : |
Author | : John M. Marzluff |
Publisher | : Springer Science & Business Media |
Total Pages | : 608 |
Release | : 2001-09-30 |
Genre | : Nature |
ISBN | : 9780792374589 |
The twenty-seven contributions authored by leaders in the fields of avian and urban ecology present a unique summary of current research on birds in settled environments ranging from wildlands to exurban, rural to urban.