Behaviour of simple population models under ecological processes |
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Authors: | Somdatta Sinha S Parthasarathy |
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Affiliation: | (1) Centre for Cellular and Molecular Biology, Hppal Hoad, 500 007 Hyderabad, India |
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Abstract: | The two most popular and extensively-used discrete models of population growth display the generic bifurcation structure of a hierarchy of period-doubling sequence to chaos with increasing growth rates. In this paper we show that these two models, though they belong to a general class of one-dimensional maps, show very different dynamics when important ecological processes such as immigration and emigration/depletion, are considered. It is important that ecologists recognize the differences between these models before using them to describe their data—or develop optimization strategies—based on these models. |
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Keywords: | Population dynamics immigration and emigration logistic equations discrete models chaos |
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