THE DEFINITION OF THE NICHE BY FUZZY SET-THEORY

被引：27
|
作者：
CAO, GX
机构：
[1] Southwestern Forestry College, Kunming
来源：
ECOLOGICAL MODELLING | 1995年 / 77卷 / 01期
关键词：
COMPETITION; INTERSPECIFIC; FUZZY SET THEORY; NICHE DEFINITION;
D O I：
10.1016/0304-3800(93)E0071-A
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
A new fuzzy niche concept is proposed to overcome the limitation of Hutchinson's niche concept. The index alpha that makes a alpha-level set of the fuzzy set of the niche is a nice measure for intercompetition, and further discussions showed that alpha can serve as an index for measuring the existing status of a species in the community: if alpha exceeds its threshold value, the species may be excluded from the community; otherwise the species coexists with other species in the community.
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页码：65 / 71
页数：7
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