Populations In A Seasonal Environment Mpb 5

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Populations In A Seasonal Environment Mpb 5

Author : Stephen D. Fretwell
ISBN : 9780691209647
Genre : Science
File Size : 37.90 MB
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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.
Category: Science
Populations in a Seasonal Environment. (MPB-5)
Language: en
Pages: 224
Authors: Stephen D. Fretwell
Categories: Science
Type: BOOK - Published: 2020-03-31 - Publisher: Princeton University Press

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
Self-Organization in Complex Ecosystems. (MPB-42)
Language: en
Pages: 384
Authors: Ricard Solé, Jordi Bascompte
Categories: Science
Type: BOOK - Published: 2012-01-06 - Publisher: Princeton University Press

Can physics be an appropriate framework for the understanding of ecological science? Most ecologists would probably agree that there is little relation between the complexity of natural ecosystems and the simplicity of any example derived from Newtonian physics. Though ecologists have long been interested in concepts originally developed by statistical
A Hierarchical Concept of Ecosystems. (MPB-23), Volume 23
Language: en
Pages: 262
Authors: Robert V. O'Neill, Donald Lee Deangelis, J. B. Waide, Timothy F.H. Allen
Categories: Science
Type: BOOK - Published: 2021-09-14 - Publisher: Princeton University Press

"Ecosystem" is an intuitively appealing concept to most ecologists, but, in spite of its widespread use, the term remains diffuse and ambiguous. The authors of this book argue that previous attempts to define the concept have been derived from particular viewpoints to the exclusion of others equally possible. They offer
Consanguinity, Inbreeding, and Genetic Drift in Italy (MPB-39)
Language: en
Pages: 328
Authors: Luigi Luca Cavalli-Sforza, Antonio Moroni, Gianna Zei
Categories: Science
Type: BOOK - Published: 2013-02-15 - Publisher: Princeton University Press

In 1951, the geneticist Luigi Luca Cavalli-Sforza was teaching in Parma when a student--a priest named Antonio Moroni--told him about rich church records of demography and marriages between relatives. After convincing the Church to open its records, Cavalli-Sforza, Moroni, and Gianna Zei embarked on a landmark study that would last
The Publishers' Trade List Annual
Language: en
Pages:
Authors: Luigi Luca Cavalli-Sforza, Antonio Moroni, Gianna Zei
Categories: American literature
Type: BOOK - Published: 1982 - Publisher:

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