James J. Vaillant, Dan G. Bock, G. Douglas Haffner and Melania E. Cristescu Speciation patterns and processes in the zooplankton of the ancient lakes of Sulawesi Island, Indonesia Ecology and Evolution 3
Studies of ancient lake fauna have provided important insights about speciation patterns and processes of organisms in heterogeneous benthic environments, however the evolutionary forces responsible for speciation in the relatively homogenous planktonic environment remain largely unexplored. In this study, we investigate mechanisms of speciation in zooplankton using the freshwater diaptomids of the ancient lakes of Sulawesi, Indonesia as a model system. Overall, our results support the conclusion that colonization order is crucial at the large, island scale, while at local and intralacustrine scales, speciation processes are regulated by gene flow among genetically differentiated and locally adapted populations.
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