Distributional patterns of the Neotropical genus Thecomyia Perty (Diptera, Sciomyzidae) and phylogenetic support

Revista Brasileira de Entomologia

Amanda Ciprandi Pires¹  Luciane Marinoni¹ 

[1],Universidade Federal do Paraná Departamento de Zoologia Laboratório de Estudos em Syrphidae e Sciomyzidae NeotropicaisCuritiba PR ,Brasil

关键词: Areas of endemism;    diversification;    panbiogeography;    phylogeny;    Tetanocerini;    Áreas de endemismo;    diversificação;    filogenia;    pan-biogeografia;    Tetanocerini;   

DOI  :  10.1590/S0085-56262011000100002

来源: SciELO

【 摘 要 】

Distributional patterns of the Neotropical genus Thecomyia Perty (Diptera, Sciomyzidae) and phylogenetic support. The distributional pattern of the genus Thecomyia Perty, 1833 was defined using panbiogeographic tools, and analyzed based on the phylogeny of the group. This study sought to establish biogeographical homologies in the Neotropical region between different species of the genus, based on their distribution pattern and later corroboration through its phylogeny. Eight individual tracks and 16 generalized tracks were identified, established along nearly the entire swath of the Neotropics. Individual tracks are the basic units of a panbiogeographic study, and correspond to the hypothesis of minimum distribution of the organisms involved. The generalized tracks, obtained from the spatial congruence between two or more individual tracks, are important in the identification of smaller areas of endemism. Thus, we found evidence from the generalized tracks in support of previous classification for the Neotropical region. The Amazon domain is indicated as an area of outstanding importance in the diversification of the group, by the confluence of generalized tracks and biogeographic nodes in the region. Most of the generalized tracks and biogeographical nodes were congruent with the phylogenetic hypothesis of the genus, indicating support of the primary biogeographical homologies originally defined by the track analysis.

【 授权许可】

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