How common are dot-like distributions? Taxonomical oversplitting in western European Agrodiaetus (Lepidoptera: Lycaenidae) revealed by chromosomal and molecular markers

Roger Vila, Vladimir A. Lukhtanov, Gerard Talavera, Felipe Gil-t., Naomi E. Pierce

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37 Citations (Scopus)

Abstract

Approximately 50 taxa of butterflies in Western Europe have been described as new species or elevated to the level of species during the last 40 years. Many, especially those belonging to the genus Agrodiaetus, have unusually localized, 'dot-like' distributional ranges. In the present study, we use a combination of chromosomal and molecular markers to re-evaluate the species status of Agrodiaetus distributed west of the 17th meridian. The results obtained do not support the current designations of Agrodiaetus galloi, Agrodiaetus exuberans, and Agrodiaetus agenjoi as endemic species with highly restricted distribution ranges, but indicate that these taxa are more likely to be local populations of a widely distributed species, Agrodiaetus ripartii. Agrodiaetus violetae is shown to be a polytypic species consisting of at least two subspecies, including Agrodiaetus violetae subbaeticus. comb. nov. and Agrodiaetus violetae violetae. Agrodiaetus violetae is genetically (but not chromosomally) distinct from Agrodiaetus fabressei and has a wider distribution in southern Spain than previously believed. Agrodiaetus humedasae from northern Italy is supported as a highly localized species that is distinct from its nearest relatives. We propose a revision of the species lists for Agrodiaetus taking these new data into account. The results reported in the present study are relevant to animal conservation efforts in Europe because of their implications for IUCN Red List priorities. © 2010 The Linnean Society of London.
Original languageEnglish
Pages (from-to)130-154
JournalBiological Journal of the Linnean Society
Volume101
Issue number1
DOIs
Publication statusPublished - 1 Sep 2010

Keywords

  • Conservation
  • Distribution
  • Phylogeny
  • Range
  • Reinforcement
  • Species
  • Systematics

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