Spatially structured populations: how much do they match the classic metapopulation concept?

摘要: In the classic metapopulation concept a specific range of animal movements is assumed, not too large and small. Thus, knowledge mobility necessary to determine degree which given population matches model. It seems that usually small mammal underestimated, this has important consequences for way we view dynamics. Data on (Clethrionomys glareolus Apodemus flavicollis) are presented in paper. The material was collected two year study western Poland using set six woodlots different sizes isolation, located among agricultural fields. Various methods were used study: colored bait, live-trapping, radio-telemetry. suggested populations under match patchy (sensu Harrison 1991), being poorly isolated individual patches with encompassing whole patches. Moreover, use changes between seasons according changing needs and/or resource abundance woodlots. Density composition local may be influenced both by patch area its also filtering effect matrix depends season. context it pointed out more attention should paid matrix, research practice conservation as factor influencing functioning quantitative qualitative ways. any generalizations about spatial organization impossible without detailed long distance focal animals their matrix.