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An individual‐based model for competing Drosophila populations
Author(s) -
Jansen Vincent A. A.,
Sevenster Jan G.
Publication year - 1997
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/bf02765268
Subject(s) - biology , drosophila (subgenus) , chaotic , competition (biology) , evolutionary biology , simple (philosophy) , dynamics (music) , statistical physics , ecology , overlapping generations model , biological system , genetics , physics , microeconomics , computer science , economics , philosophy , epistemology , artificial intelligence , gene , acoustics
An individual‐based model for Drosophila is formulated, based on competition amongst larvae consuming the same batch of food. The predictions of the model are supported by data for single species Drosophila populations reared in the laboratory. The model is used to build a simple discrete model for the dynamics of Drosophila populations that are kept over a number of generations. The dynamics of a single species is shown to give either a stable equilibrium or fluctuations which can be periodic or chaotic. When the dynamics of a species in the absence of the other is periodic or chaotic, we found coexistence or two alternative states, on neither of which the species can coexist.