Populations In A Seasonal Environment PDF Download
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Author | : Stephen D. Fretwell |
Publisher | : Princeton University Press |
Total Pages | : 246 |
Release | : 2020-03-31 |
Genre | : Science |
ISBN | : 0691209642 |
Download Populations in a Seasonal Environment. (MPB-5) Book in PDF, ePub and Kindle
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.
Author | : S.D. FRETWELL |
Publisher | : |
Total Pages | : 0 |
Release | : |
Genre | : |
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Download POPULATION IN A SEASONAL ENVIRONMENT. 1972 Book in PDF, ePub and Kindle
Author | : Gustavo Betini |
Publisher | : |
Total Pages | : |
Release | : 2014 |
Genre | : |
ISBN | : |
Download DYNAMICS OF POPULATIONS IN SEASONAL ENVIRONMENTS. Book in PDF, ePub and Kindle
Author | : F. S. Bodenheimer |
Publisher | : |
Total Pages | : 26 |
Release | : 2012-09-01 |
Genre | : |
ISBN | : 9781258478698 |
Download Studies in Animal Populations, Ii Book in PDF, ePub and Kindle
Quarterly Review Of Biology, Volume 12, No. 4, December, 1937.
Author | : M. H. Birley |
Publisher | : |
Total Pages | : |
Release | : 1977 |
Genre | : |
ISBN | : |
Download The Estimation, Stimulation and Control of Pest Populations in a Seasonal Environment Book in PDF, ePub and Kindle
Author | : John C. Moore |
Publisher | : Cambridge University Press |
Total Pages | : 445 |
Release | : 2017-12-21 |
Genre | : Nature |
ISBN | : 1316877256 |
Download Adaptive Food Webs Book in PDF, ePub and Kindle
Presenting new approaches to studying food webs, this book uses practical management and policy examples to demonstrate the theory behind ecosystem management decisions and the broader issue of sustainability. All the information that readers need to use food web analyses as a tool for understanding and quantifying transition processes is provided. Advancing the idea of food webs as complex adaptive systems, readers are challenged to rethink how changes in environmental conditions affect these systems. Beginning with the current state of thinking about community organisation, complexity and stability, the book moves on to focus on the traits of organisms, the adaptive nature of communities and their impacts on ecosystem function. The final section of the book addresses the applications to management and sustainability. By helping to understand the complexities of multispecies networks, this book provides insights into the evolution of organisms and the fate of ecosystems in a changing world.
Author | : Arthur S. Boughey |
Publisher | : |
Total Pages | : 156 |
Release | : 1968 |
Genre | : Biotic communities |
ISBN | : |
Download Ecology of Populations Book in PDF, ePub and Kindle
Author | : M. H. Birley |
Publisher | : |
Total Pages | : 311 |
Release | : 1977 |
Genre | : |
ISBN | : |
Download An Estimation, Simulation and Control Theory for Pest Populations in a Seasonal Environment Book in PDF, ePub and Kindle
Author | : Shixi Simon Hu |
Publisher | : |
Total Pages | : 218 |
Release | : 1993 |
Genre | : Daphnia |
ISBN | : |
Download Competition in a Seasonal Environment Book in PDF, ePub and Kindle
Author | : Russell Greenberg |
Publisher | : JHU Press |
Total Pages | : 502 |
Release | : 2005-05-02 |
Genre | : Nature |
ISBN | : 9780801881077 |
Download Birds of Two Worlds Book in PDF, ePub and Kindle
For centuries biologists have tried to understand the underpinnings of avian migration: where birds go and why, why some migrate and some do not, how they adapt to a changing environment, and how migratory systems evolve. Twenty-five years ago the answers to many of these questions were addressed by a collection of migration experts in Keast and Morton's classic work Migrant Birds in the Neotropics. In 1992, Hagan and Johnston published a follow-up book, Ecology and Conservation of Neotropical Migrant Landbirds. In Birds of Two Worlds Russell Greenberg and Peter Marra bring together the world's experts on avian migration to discuss its ecology and evolution. The contributors move the discussion of migration to a global stage, looking at all avian migration systems and delving deeper into the evolutionary foundations of migratory behavior. Readers interested in the biology, behavior, ecology, and evolution of birds have waited a decade to see a worthy successor to the earlier classics. Birds of Two Worlds will complete the trilogy and become indispensable for ornithologists, evolutionary biologists, serious birders, and public and academic libraries.