Artículos de revistas
Home range evolution and its implication in population outbreaks
Registro en:
Philosophical Transactions Of The Royal Society A-mathematical Physical And Engineering Sciences. Royal Soc, v. 368, n. 1933, n. 5661, n. 5677, 2010.
1364-503X
WOS:000284207100010
10.1098/rsta.2010.0270
Autor
Araujo, SBL
Viswanathan, GM
de Aguiar, MAM
Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We investigated the phenomenon of population outbreaks in a spatial predator-prey model, and we found that pattern formation and outbreaks occur if the predators have a limited neighbourhood of interaction with the preys. The outbreaks can display a scale-invariant power-law tail, indicating self-organized criticality. We have also studied the system from an evolutionary point of view, where the predator home range is a hereditary trait subjected to mutations. We found that mutation drives the predator home range area to an optimal value where pattern formation and outbreaks are still present, but the latter are much less frequent. We developed analytical approximations using mean field and pair correlation techniques that indicate that the predation strategy is crucial for existence of this optimal home range area. 368 1933 5661 5677 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Consortium of the Americas for Interdisciplinary Science Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)