Project 2246: Delano S. Lewis, Felix A. H. Sperling, Shinichi Nakahara, Adam M. Cotton, Akito Y. Kawahara, Fabien L. Condamine. 2015. Role of Caribbean Islands in the diversification and biogeography of Neotropical Heraclides swallowtails. Cladistics. 31 (3):291–314.
Specimen: Heraclides astyalus (unvouchered)

Abstract

Numerous hypotheses on the evolution of Neotropical biodiversity have stimulated research to provide a better understanding of diversity dynamics and distribution patterns of the region. However, few studies integrate molecular and morphological data with complete sampling of a Neotropical group, and so there has been little synthesis of the multiple processes governing biodiversity through space and time. Here, a total-evidence phylogenetic approach is used to reconstruct the evolutionary history of the butterfly subgenus Heraclides. We used DNA sequences for two mitochondrial genes and one nuclear gene and coded 133 morphological characters of larvae and adults. A robust and well-resolved phylogeny was obtained using several analytical approaches, while molecular dating and biogeographical analyses indicated an early Miocene origin (22 Mya) in the Caribbean Islands. We inferred six independent dispersal events from the Caribbean to the mainland, and three from the mainland to the Caribbean, and we suggest that cooling climates with decreasing sea levels may have contributed to these events. The time-calibrated tree is best explained by a museum model of diversity in which both speciation and extinction rates remained constant through time. By assessing both continental and fine-scale biodiversity patterns, this study provides new findings, for instance that islands may act as source of diversity rather than as a sink, to explain spatio-temporal macroevolutionary processes within the Neotropical region.


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Article DOI: 10.1111/cla.12092

Project DOI: 10.7934/P2246, http://dx.doi.org/10.7934/P2246
This project contains
  • 487 Media
  • 5 Documents
  • 79 Taxa
  • 80 Specimens
Total size of project's media files: 50.6M

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MorphoBank Project 2246
  • Creation Date:
    20 August 2015
  • Publication Date:
    07 December 2015
  • Project views: 97398

    Authors' Institutions

    • Centre National de la Recherche Scientifique (CNRS)

    • University of Alberta

    • University of Florida

    • Northern Caribbean University



    Members

    member name taxa specimens media
    MorphoBank Curator
    Project Administrator
    7880487
    Fabien Condamine
    Full membership
    000
    Delano Lewis
    Full membership
    000


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    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project317
    Project downloads274
    Document downloads43Matrix file (14 downloads); Appendix S7 - Morphological matrix (XLSX) (11 downloads); Appendix S4 - Details for Morphology (PDF) (13 downloads); Fig. 3 - Morphology of Heraclides (PDF) (2 downloads); Appendix S6 - Figures for Morphology (PDF) (3 downloads);