Cryptic diversity in the North American Dromochorus tiger beetles (Coleoptera: Carabidae: Cicindelinae): a congruence-based method for species discovery

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dc.citation.firstpage250
dc.citation.issueNumber1
dc.citation.journalTitleZoological Journal of the Linnean Society
dc.citation.lastpage285
dc.citation.volumeNumber186
dc.contributor.authorDuran, Daniel P.
dc.contributor.authorHerrmann, David P.
dc.contributor.authorRoman, Stephen J.
dc.contributor.authorGwiazdowski, Rodger A.
dc.contributor.authorDrummond, Jennifer A.
dc.contributor.authorHood, Glen R.
dc.contributor.authorEgan, Scott P.
dc.date.accessioned2021-10-06T14:15:54Z
dc.date.available2021-10-06T14:15:54Z
dc.date.issued2019
dc.description.abstractA fundamental problem in biodiversity science is determining the number of species in any taxon, and there is a growing awareness that cryptic diversity contributes to this problem – even in well-studied groups. Discovering cryptic species requires several lines of evidence to elucidate congruent patterns across data-types, and distinguish unrecognized species. Tiger beetles are among the most well-studied insect groups; yet few new North American species have been described since the mid-20th century, suggesting that that the number of morphologically distinct species is reaching an asymptote. We explore the possibility that more species exist in the fauna as cryptic species, by analysing a broad geographic sample of all species in the genus Dromochorus. We employ a ‘taxonomic congruence’ approach, where we first generate species hypotheses from patterns of reciprocal monophyly across the mitochondrial and nuclear datasets, and test these hypotheses through congruence with population structure, morphological measures and ecological divergence. We find broad congruence that supports eight species of Dromochorus, more than doubling the known diversity. We also validate a previously ambiguous taxon, and re-describe previously named species. Lastly, we identify new diagnostic morphological characters, include an updated dichotomous key and provide updated natural history/ecological characteristics for the genus and individual species.
dc.identifier.citationDuran, Daniel P., Herrmann, David P., Roman, Stephen J., et al.. "Cryptic diversity in the North American Dromochorus tiger beetles (Coleoptera: Carabidae: Cicindelinae): a congruence-based method for species discovery." <i>Zoological Journal of the Linnean Society,</i> 186, no. 1 (2019) Oxford University Press: 250-285. https://doi.org/10.1093/zoolinnean/zly035.
dc.identifier.digitalzly035
dc.identifier.doihttps://doi.org/10.1093/zoolinnean/zly035
dc.identifier.urihttps://hdl.handle.net/1911/111491
dc.language.isoeng
dc.publisherOxford University Press
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/),
dc.titleCryptic diversity in the North American Dromochorus tiger beetles (Coleoptera: Carabidae: Cicindelinae): a congruence-based method for species discovery
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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