Titlebook: Ecological Heterogeneity; Jurek Kolasa,Steward T. A. Pickett Book 1991 Springer-Verlag New York Inc. 1991 complexity.desert.ecology.ecosys

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The National Air and Space Museum,many early ecologists (see review by Lussenhop, 1974) perceived especially the pelagic milieu to be uniform [hence the term plankton or “wanderers” for its inhabitants (Ruttner, 1953)], early quantitative limnologists such as Birge (1897) found the aquatic habitat to be highly heterogeneous in facto

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Luis Madeira,Maria Luisa Figueirae variable in organism abundance (e.g., Sousa, 1984). In the literature there are discrepancies as to the usage of the terms heterogeneity and variability (see Chapter 1); therefore we define our usage of the terms. . refers to composition of parts of different kinds, and . indicates changes in valu

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Introducing Wireless Communications,sulfur, or consuming organic resources, e.g., other organisms or their products, virtually every aspect of the biology of a species is affected by the quantity, quality, and availability of consumable resources. In the simplest systems—such as a uniformly distributed population under homogeneous env

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An Experimental Study of Pituitary Tumoursnization and yet is expressed differently in each context (Hutchinson, 1953). One of the principal problems in understanding heterogeneity is to discover its patterns and, subsequently, its functional significance in its various manifestations. In this chapter we take heterogeneity to be the spatial

PTCA635

Descriptive Synopsis of the Text,ariation in the physical and biological constraints encountered by populations. In marine systems hydrodynamic processes (water column stability, temperature and nutrient gradients, turbulent oceanographic features, storm disturbances) and biological processes (competition, grazing, predation) affec

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Descriptive Synopsis of the Text,e zones relating plant distributions to changes in air temperature along an elevation gradient was an early explanation of environmentally controlled community patterns. Terrestrial biomes (Clements and Shelford, 1939) are defined by large-scale changes in physical and biological characteristics of

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