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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.
About the Author: Stephen Fretwell is a member of the Division of Biology, Kansas State University.
Titel: Populations in a Seasonal Environment. (MPB-...
Verlag: Princeton University Press
Zustand: very good
Buchbeschreibung Princeton University Press, 1973. Buchzustand: Fair. This book has soft covers. Ex-library, With usual stamps and markings, In fair condition, suitable as a study copy. No dust jacket. Buchnummer des Verkäufers 3190088
Buchbeschreibung Princeton University Press, 1972. Buchzustand: Fair. Former Library book. Shows definite wear, and perhaps considerable marking on inside. Buchnummer des Verkäufers GRP81193719
Buchbeschreibung Princeton University Press, 1972. Buchzustand: Very Good. Former Library book. Great condition for a used book! Minimal wear. Buchnummer des Verkäufers GRP68822004
Buchbeschreibung Princeton University Press, 1972. Buchzustand: Good. Shows some signs of wear, and may have some markings on the inside. Buchnummer des Verkäufers GRP10670146
Buchbeschreibung Princeton University Press, Princeton, N.J., 1972. Hardcover. Buchzustand: Fine. Zustand des Schutzumschlags: VERY GOOD PLUS. FINE in VERY GOOD PLUS DUST JACKET. Book itself appears new and unused except for owner's name inked on front flyleaf; dust jacket is clean and bright with light wear. Buchnummer des Verkäufers 010648
Buchbeschreibung Princeton University Press, Princeton, 1972. Hard Cover. Buchzustand: G+. Zustand des Schutzumschlags: Fair. First Edition. Library markings; covers lightly edge-rubbed; dust wrapper edgeworn; internally vg; 217p, bibliog, index. Size: 8vo - over 7¾" - 9¾" tall. Ex-Academic Library. Buchnummer des Verkäufers 78818
Buchbeschreibung Princeton University Press, 1973. Paperback. Buchzustand: Used: Good. Buchnummer des Verkäufers SONG0691081050
Buchbeschreibung Princeton University Press, 1972. Paperback. Buchzustand: Good. Ships with Tracking Number! INTERNATIONAL WORLDWIDE Shipping available. May not contain Access Codes or Supplements. Buy with confidence, excellent customer service!. Buchnummer des Verkäufers 0691081050