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The species‐area relation III. A third model for a delimited community
Author(s) -
Kobayashi Shiro
Publication year - 1976
Publication title -
population ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 59
eISSN - 1438-390X
pISSN - 1438-3896
DOI - 10.1007/bf02530776
Subject(s) - biology , ecology , habitat , sigmoid function , relation (database) , connection (principal bundle) , group (periodic table) , rare species , mathematics , geometry , physics , computer science , quantum mechanics , database , machine learning , artificial neural network
Summary A mathematical model of the species‐area relation is described for a group of limited species. This model is a modification of that proposed earlier ( Kobayashi , 1975), being assumed that the limited species are expected to occur in a habitat under consideration. The model equation gives a sigmoid species‐log area curve implying that few rare species are found in a group of species. The good agreement between observation and this model is exemplified with the data of plant and arthropod communities. The implication of parameters involved are examined in connection with those of the preceding model, and the underlying ecology of the model is discussed.