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Spatial congruence between biotic history and species richness of Muscidae (Diptera, Insecta) in the Andean and Neotropical regions.(Report)

Lowenberg - Neto, P. ; De Carvalho, C. J. B. ; Diniz - Filho, J. A. F.

Journal of Zoological Systematics and Evolutionary Research, Nov, 2008, Vol.46(4), p.374(7) [Peer Reviewed Journal]

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  • Title:
    Spatial congruence between biotic history and species richness of Muscidae (Diptera, Insecta) in the Andean and Neotropical regions.(Report)
  • Author: Lowenberg - Neto, P. ; De Carvalho, C. J. B. ; Diniz - Filho, J. A. F.
  • Subjects: Geographers -- Analysis
  • Is Part Of: Journal of Zoological Systematics and Evolutionary Research, Nov, 2008, Vol.46(4), p.374(7)
  • Description: To purchase or authenticate to the full-text of this article, please visit this link: http://dx.doi.org/10.1111/j.1439-0469.2008.00484.x Byline: P. Lowenberg-Neto (1), C. J. B. De Carvalho (1), J. A. F. Diniz-Filho (2) Keywords: Cladistic Biogeography; root distance; Muscidae; Paleogene; Pleistocene; species richness Abstract: Abstract Considering that Earth and life evolve together, the present study aims to verify whether the species richness patterns are spatially congruent to biotic history. Niche conservatism was adopted as a background hypothesis to associate species richness with phylogenetic information. A parallel analysis between this procedure and cladistic biogeography was undertaken. Eleven Muscidae genera that were previously systematically reviewed for phylogenetic hypotheses were chosen for the analysis. The genera were split into 'basal' and 'derived' species, following terminal taxon root distance within each genus. Richness patterns were contrasted for the most basal and most derived 33% of species, and richness maps were constructed at 220 x 220 km grid size. A difference richness map was drawn by derived minus basal values (=derived-basal). For regions with difference values around zero, a component analysis was performed and compared with relationships established by other studies. Derived and basal species richness showed a very concise richness gradient in the Neotropical region and it was compatible with its known biogeographical history. In the Andean region, richness did not show any pattern. The area cladogram grouped Subantarctic subregion in a polytomy and Central Chile as a paraphyletic group. All hypotheses about area relationship were divergent and no vicariant pattern could be recognized in Andean region. In Neotropical region, Muscidae results corroborated a previous component relationship. The hypothesis that Paleogene climatic changes could drive the biotic component's split was suggested. In the Andean region, recently ice sheet covering events had driven the species to disperse and/or extinct resulted in absence of pattern seen either in richness analysis or in component analysis. It is believed that species richness is linked to biotic history and this fact may be considered when evaluating hypotheses to explain broad-scale richness gradients. Author Affiliation: (1)Departamento de Zoologia, SCB, Universidade Federal do Parana, Curitiba, PR, Brazil (2)Departamento de Biologia Geral, ICB, Universidade Federal de Goias, Goiania, GO, Brazil Article History: Accepted on 19 May 2008 Article note: Authors' addresses: Peter Lowenberg Neto (for correspondence) and Claudio Jose Barros de Carvalho, Departamento de Zoologia, SCB, Universidade Federal do Parana, CP 19020, 81531-980 Curitiba, PR, Brazil. E-mail: lowenberg_p@yahoo.com.br, cjbcarva@ufpr.br. Jose Alexandre Felizola Diniz Filho, Departamento de Biologia Geral, ICB, Universidade Federal de Goias, CP 131, 74001-970 Goiania, GO, Brazil. E-mail: diniz@icb.ufg.br
  • Language: English
  • Identifier: ISSN: 0947-5745

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