Populations in a Seasonal Environment by Stephen D. Fretwell (English) Paperback

Description: Populations in a Seasonal Environment by Stephen D. Fretwell Most organisms live in a seasonal environment. During their life cycles, some species face seasons of breeding and nonbreeding. This work analyzes the 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. FORMAT Paperback LANGUAGE English CONDITION Brand New Publisher Description 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 Biography Stephen Fretwell is a member of the Division of Biology, Kansas State University. Table of Contents 1. Balance Sheet and Ledger Accounts. 2. The Journal and Income Statement. 3. Depreciation and Closing the Books. 4. Adjusting Entries. 5. Merchandising Transactions. 6. Miscellaneous Transactions. 7. Corporations. 8. Organizing the Books and Records; and the Worksheet. Appendix: Small Business Ledger Accounts Index. Bibliography. Index. Long Description 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. Details ISBN0691081069 Author Stephen D. Fretwell Short Title POPULATIONS IN A SEASONAL ENVI Publisher Princeton University Press Language English ISBN-10 0691081069 ISBN-13 9780691081069 Media Book Format Paperback DEWEY 574.524 Series Number 5 Illustrations Yes Year 1972 Residence KS, US DOI 10.1604/9780691081069 UK Release Date 1972-07-21 Imprint Princeton University Press Place of Publication New Jersey Country of Publication United States NZ Release Date 1972-07-21 US Release Date 1972-07-21 Pages 224 Series Monographs in Population Biology Publication Date 1972-07-21 Alternative 9780691081052 Audience Professional & Vocational AU Release Date 1972-09-27 We've got this At The Nile, if you're looking for it, we've got it. With fast shipping, low prices, friendly service and well over a million items - you're bound to find what you want, at a price you'll love! TheNile_Item_ID:8371815;

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