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.
Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.
Le informazioni nella sezione "Su questo libro" possono far riferimento a edizioni diverse di questo titolo.
Spese di spedizione:
EUR 3,77
In U.S.A.
Descrizione libro Paperback. Condizione: new. New. Fast Shipping and good customer service. Codice articolo Holz_New_0691081069
Descrizione libro Paperback. Condizione: new. New Copy. Customer Service Guaranteed. Codice articolo think0691081069
Descrizione libro Condizione: new. Codice articolo FrontCover0691081069
Descrizione libro Paperback. Condizione: new. New. Codice articolo Wizard0691081069
Descrizione libro Paperback. Condizione: new. Buy for Great customer experience. Codice articolo GoldenDragon0691081069
Descrizione libro Condizione: New. Codice articolo 400465-n
Descrizione libro Condizione: New. Book is in NEW condition. Codice articolo 0691081069-2-1
Descrizione libro paperback. Condizione: New. Language: ENG. Codice articolo 9780691081069
Descrizione libro Condizione: New. 1972. Paperback. . . . . . Codice articolo V9780691081069
Descrizione libro Soft Cover. Condizione: new. Codice articolo 9780691081069