BIO205H5 Lecture Notes - Lecture 11: Pepita, Lake Ontario, Metapopulation
Document Summary
We define metapopulations as: a set of subpopulations within a given area Held together by dispersal or movement between subpopulations. We can use four conditions to define metapopulations: suitable habitat occurs in discrete patches. If they"re too isolated, there"s no movements: dynamics of subpopulations are not synchronized. If they"re all synchronized, it"s just one big population. The dynamics of a metapopulation are influenced by three variables: extinction (e, colonization (c, proportion of occupied patches (p, deltap/delta t (time) = c-e. These three variables are influenced in turn by a set of factors: patch area, distance between patches, habitat heterogeneity within patches, source/sink habitats, synchronization of subpopulation dynamics, species differences. Could there be metapopulations in: yes to pictures. There are metapopulations in lake ontario: based on temperature, warm water species. The liberian lynx is the most endangered cat species in the world: lives in europe. It"s population is a classic example of a metapopulation: probability of extinction.
