AI Article Synopsis
- Ecologists traditionally see community assembly as a straightforward process where species disperse from a fixed regional pool and are filtered by their environment, but this view is overly simplistic.
- The dynamics of species pools are continually changing and influenced by various processes, both short-term (like metacommunity dynamics) and long-term (like speciation and extinction).
- To better understand how communities form, we need to pay more attention to geographic factors in speciation, the occurrence of species living together, and how local and regional processes interact.
Article Abstract
Ecologists often view community assembly as a process involving the dispersal of species from a static regional species pool followed by environmental filtering to establish the local community. This conceptual framework ignores the dynamic nature of species pools and fails to recognize that communities are assembled by processes operating over a vast range of temporal and spatial scales. Species pool richness and composition are influenced by metacommunity dynamics over short timescales and by speciation, extinction, and dispersal over long timescales. We suggest that a stronger focus on the geography of speciation, the formation of secondary sympatry, and the feedback between local and regional processes is needed to fully understand community assembly and the importance of dynamic species pools.
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| http://dx.doi.org/10.1016/j.tree.2015.02.008 | DOI Listing |
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