BIO205H5 Lecture Notes - Lecture 13: Metapopulation, Spatial Analysis, Carrying Capacity
Document Summary
We explore what spatial characteristics influence population dynamics. Spatial models explain extinction and are important for conservation. Patchy habitat influences dynamics within a population. Metapopulation: spatially separated population sets of the same species. The rocky mountain parnassians butterfly population is spread across patchy habitat. Why are there patches and what are some general patterns to predict what factors are crucial to predict whether one patch is a large patch or small patch. We can use a basic model to describe metapopulation dynamics. Animals moving in - and decreasing would be animals moving out. C = probability of colonization (animals moving in) Patch characteristics are clearly important for metapopulation dynamics. Patch area and patch isolation - for the shrews (rats) Blue dots don"t go anywhere - maybe a little bit up but not much. So patch isolation is not closely related to patch area. What about the red dots? (occupied patches) As patch isolation increase, the patch area increases.
