On the scale dependence of evenness

• Autorzy: Ulrich W.
• Języki publikacji: EN

Abstrakty

EN

A recently reported (Wilson et al. 1999) effect of spatial scale on evenness is studied and it is shown that such a pattern is not necessarily an effect of changes in community structure at different scales but may simply result as a byproduct from constrains introduced by maximum and minimum allowed densities due to the sampling procedure. Evenness is found to be constant only if the species area relationship of the community under study has exactly the parameter values that are given by the parameter values of the relative abundance distribution of the community. Because such a situation will seldom occur under natural circumstances scale dependence of the evenness (and of related descriptors of structure) is expected to be a general feature.

Słowa kluczowe

EN

evenness; random assortment; relative abundance distribution; spatial scale; species-area relation

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2001
• Tom: Vol. 49, nr 1
• Strony: 91--94
• Opis fizyczny: Bibliogr. 10 poz..

Twórcy

autor

Ulrich W.

• Nicholas Copernicus University in Toruń, Department of Animal Ecology, Gagarina 9, 87-100 Toruń: Poland

Bibliografia

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