Animal movements and population dynamics in heterogeneous landscapes

摘要: Organisms respond to environmental heterogeneity at different scales and in ways. These differences are consequences of how the movement characteristics animals—their rates, directionality, turning frequencies, angles—interact with patch boundary features landscape mosaics. The interactions patterns turn produce spatial individual space-use, population dynamics dispersion, gene flow, redistribution nutrients other materials. We describe several theoretical approaches for modeling diffusion, foraging behavior, animals heterogeneous landscapes, including: (1) scaling relationships derived from percolation theory fractal geometry, (2) extensions traditional patch-based metapopulation models, (3) individual-based, spatially explicit models governed by local rules. conclude emphasizing need couple empirical studies usefulness ‘microlandscape’ investigations.