02167nas a2200229   4500008004100000245016300041210006900204260001200273300001400285490000700299520143900306653001101745653001701756653001401773653001901787653001701806653001401823100001501837700001601852700001601868856005301884       2010                        eng d00aA watershed study on genetic diversity: phylogenetic analysis of  the Platypleura plumosa (Hemiptera: Cicadidae) complex reveals catchment-specific lineages0 awatershed study on genetic diversity phylogenetic analysis of th  c2010///  a617 - 6260 v543 aHistorical biogeography studies have at their disposal a small suite of vicariance models to explain genetic differentiation within and between species. One of these processes involves the role of river catchments and their associated watersheds, in driving diversification and is applicable to both aquatic and terrestrial organisms. Although the idea of catchments structuring the genetic history of aquatic organisms is reasonably well understood, their effect on terrestrial organisms has largely been overlooked, with relevant studies being limited in scope. South Africa presents a perfect test-bed for elucidating this mechanism of diversification due to its rich biodiversity, range of climatic environments and many large river catchments. Here we use the cicadas of the Platypleura plumosa complex to highlight the importance of catchments and their associated watersheds in driving diversification of terrestrial invertebrates that lack an aquatic life-stage. Population structure was found to correspond to primary and in some cases secondary catchments; highlighting the need to include information on catchment structure when formulating hypotheses of population diversification. Recognizing that climate change in the near future is likely to alter the environment, and particularly precipitation patterns, insight into recent patterns of population change related to catchments may be useful in a conservation context.10aAFRICA10aBIOGEOGRAPHY10aCicadidae10aclimate change10aCONSERVATION10aDIVERSITY1 aPrice, B W1 aBarker, N P1 aVillet, M H  uhttp://dx.doi.org/10.1016/j.ympev.2009.10.011
