Densidade Populational
Mostrando 13-14 de 14 artigos, teses e dissertações.
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13. Analises de problemas populacionais intraespecificos e interespecificos com difusão densidade-dependente
In this text we construct generic models described by partial differential equations for intraspecific populational dynamics problems with density-dependent diffusion, populational decrement coefficient, and/or malthusian intrinsic reproduction rates varying with time, and velocity fields associated to migratory processes or induced convection by chemotaxy,
Publicado em: 1999
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14. Diversidade e densidade de anuros de serralheria num gradiente altitudinal na mata atlantica costeira
Here I present and discuss data about the diversity and abundance ofleaf-litter frogs along an altitudinal gradient (0-1.000 m) in Ubatuba, São Paulo, (Southeastem Brazil). I sampled the area in three transects, with 64 fenced plots (8 x 8 m) in the summer and 32 in the winter. I considered 11 altitudinal strips, from the plains to the top of the hills. In
Publicado em: 1999