Movement upscaled – the importance of individual foraging movement for community response to habitat loss

摘要: Habitat loss poses a severe threat to biodiversity. While many studies yield valuable information on how specifi c species cope with such environmental modifi cation, the mechanistic understanding of interacting or whole communities are aff ected by habitat is still poor. Individual movement plays crucial role for space use characteristics species, since it determines individuals perceive and their heterogeneous environment. At community level, therefore essential include individual infl uenced resource sharing into investigation consequences loss. To elucidate eff ects foraging in face loss, we here apply recently published spatially-explicit individual-based model home range formation. Th approach allows predicting size distribution (ISD) mammal simulation landscapes that vary amount suitable habitat. We three fundamentally diff erent approaches (central place forager (CPF), patrolling (PF) body mass dependent nomadic (BNF)). Results show effi ciency strategies depends mass, which again structure CPF only cient small animals, yields steep ISD exponents has little ect (due limitation mass). PF particularly BNF more larger resulting less ISDs higher maxima, both showing threshold behaviour regard ese fi ndings represent new way explaining observed ‘ extinction thresholds ’ , indicate importance characterized physiology behaviour, i.e. movement, response Findings also necessity incorporate future conservation orts terrestrial communities.