Patterns of speciation in the genus Lopidea (Heteroptera: Miridae: Orthotylinae) |
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Authors: | ADAM ASQUITH |
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Institution: | Department of Entomology, University of Hawaii, Kauai Research Station, Kapaa, Hawaii |
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Abstract: | Abstract. Speciation in four monophyletic species groups of the mirid genus Lopidea is examined. An analysis of twelve speciation events suggests that vicariance can account for at least 50% of speciation in Lopidea , and the frequency of sympatric host plant speciation may be as high as 25%. In examples attributable to peripheral isolate speciation, the daughter taxa typically occur in recognized areas of endemism, suggesting a common cause (vicariance) for their origins. In addition, seven zones of disjunction between subspecies and allopatric sister species were identified for Lopidea , which correspond with similar disjunctions between sister taxa in other groups of organisms. |
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