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Cryptic variation in an ecological indicator organism: mitochondrial and nuclear DNA sequence data confirm distinct lineages of Baetis harrisoni Barnard (Ephemeroptera: Baetidae) in southern Africa

By L.L. Pereira-da-Conceicoa, B.W. Price, Helen Margaret Barber-James, N.P. Barker, F.C. de Moor and M.H. Villet

Abstract

Baetis harrisoni Barnard is a mayfly frequently encountered in river studies across Africa, but the external morphological features used for identifying nymphs have been observed to vary subtly between different geographic locations. It has been associated with a wide range of ecological conditions, including pH extremes of pH 2.9–10.0 in polluted waters. We present a molecular study of the genetic variation within B. harrisoni across 21 rivers in its distribution range in southern Africa.

Topics: Insects
Publisher: BioMedCentral
Year: 2012
DOI identifier: 10.1186/1471-2148-12-26
OAI identifier: oai:eprints.ru.ac.za:4296

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