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Some Notes on Estimating the Competition Matrix, a
Author(s) -
May Robert M.
Publication year - 1975
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1935511
Subject(s) - competition (biology) , dimension (graph theory) , resource (disambiguation) , measure (data warehouse) , matrix (chemical analysis) , path (computing) , ecology , field (mathematics) , econometrics , work (physics) , mathematics , computer science , statistics , mathematical economics , biology , pure mathematics , physics , chemistry , data mining , computer network , chromatography , programming language , thermodynamics
Recent theoretical and field work on communities of interacting species has employed various forms for estimating the competition matrix elements, α i j , from utilization coefficients p i a (which measure the relative utilization of the path resource category by the ith species). Some little—known properties of these forms are discussed. When more than one resource dimension is involved, there is in general no substitute for measuring the species' full multidimensional utilization functions; a critical discussion is given of the estimation of such multidimensional competition coefficient α i j by products of one—dimensional coefficients.