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Science 19 October 2001:
Vol. 294. no. 5542, p. 473
DOI: 10.1126/science.294.5542.473m
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Organisms are discrete entities in space and time, but most ecological models simulate populations as a continuum. Lattice models can handle populations that have discrete numbers, and by this means Henson et al. (p. 602) have shown in laboratory populations of the flour beetle, Tribolium, that it does matter whether organisms are treated as points rather than smears. Accounting for lattice effects can dramatically alter the predictions of ecological models, especially those with complex dynamics used in conservation biology and wildlife management.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)