On a generalization of Morisita's model for estimating the habitat preference期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

On a generalization of Morisita's model for estimating the habitat preference

Authors:	Ch. A. Charalambides and M. V. Koutras

Affiliation:	(1) Department of Mathematics, Section of Statistics and O.R., University of Athens, Panepistemiopolis, 157 84 Athens, Greece

Abstract:	The Morisita's model for estimating the habitat preference by the ant lionsGenuroides japonicus is generalized by introducing, in addition to the environmental densitiesa andb, a repulsivity parameter . The probability function of the numberL_n of individuals choosing fine sand to settle when a total ofn ant lions are introduced is examined. A heuristic and the minimum chi-square methods for estimating the parametersa, b and are discussed.

Keywords:	Eulerian numbers Gould and Hopper numbers minimum chi-square estimation unimodality
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