INTRODUCTION One approach to the assessment of the potential value to be obtained from wildlife in different vegetation types is to measure the capacity of each to support an animal population. Such a measurement, termed the « carrying capacity », is also of value in planning the correct management of the land concerned. It is commonly expressed in one of two ways. The first method of expression, density or numbers of animals per unit area, affords a satisfactory basis for the comparison of different areas when a single species only is concerned. Where numbers of species varying in size are present a comparison of total population densities may be misleading. The second method of expression, biomass or total weight of animals per unit area, avoids this difficulty. Some of the published figures for biomass, however, are unrealistic or at least incomplete for two reasons. Firstly, calculations have sometimes been based on a single count of an area which is not a complete ecological unit; it may therefore be subject to periodic movement of animals in and out of the area. The count, and the biomass data derived from it, may then represent a minimum, maximum or intermediate value.
Mammalia - International Journal of the Systematics, Biology and Ecology of Mammals – de Gruyter
Published: Jan 1, 1963
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