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Distribution, Abundance and Molecular Analysis of Genus Barbadocladius Cranston & Krosch (Diptera, Chironomidae) in Tropical, High Altitude Andean Streams and Rivers.
Prat, N; Ribera, C; Rieradevall, M; Villamarín, C; Acosta, R.
Afiliação
  • Prat N; Grupo de investigación Freshwater Ecology and Management (F.E.M.), Depto d'Ecologia, Univ de Barcelona, 08028, Barcelona, Spain. nprat@ub.edu.
  • Ribera C; Depto de Biologia Animal, Univ de Barcelona, Barcelona, Spain.
  • Rieradevall M; Institut de Recerca de Biodiversitat (IRBio), Univ de Barcelona, Barcelona, Spain.
  • Villamarín C; Grupo de investigación Freshwater Ecology and Management (F.E.M.), Depto d'Ecologia, Univ de Barcelona, 08028, Barcelona, Spain.
  • Acosta R; Institut de Recerca de Biodiversitat (IRBio), Univ de Barcelona, Barcelona, Spain.
Neotrop Entomol ; 42(6): 607-17, 2013 Dec.
Article em En | MEDLINE | ID: mdl-27193279
The distribution of the genus Barbadocladius Cranston & Krosch (Diptera: Chironomidae), previously reported from Chile to Bolivia, has extended northwards. Larvae, pupae and pupal exuviae of this genus have been found in the high mountain tropical streams of Peru to 9°22'56″, but are restricted to very high altitude streams (altitudes over 3,278 m asl) compared to the lower altitude streams (below 1,100 m asl) in which the genus is reported in Chile and Argentina. Based on morphological studies, both described species in the genus, Barbadocladius andinus Cranston & Krosch and Barbadocladius limay Cranston & Krosch, have been found in Peru as pupae or pupal exuviae. Morphological analysis of the larvae and pupae revealed no differences between the two described species from Patagonia and Peru, which are of similar size and with a similar armament of hooklets and spines in pupal tergites and sternites. However, molecular analysis of larvae and pupae revealed that in Peru, there are at least two different evolutionary lines, one distributed widely and another restricted to one site. Phylogenetic analysis (using cox1 mitochondrial sequences) of all available sequences of Barbadocladius shows that the Chilean and Argentinean material differs from that of Peru. Therefore, a total of four molecular segregates are identified, although morphologically, neither larvae nor the pupae may be differentiated.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Chironomidae / Genética Populacional Limite: Animals País/Região como assunto: America do sul / Argentina / Barbados / Bolivia / Caribe ingles / Chile Idioma: En Revista: Neotrop Entomol Assunto da revista: BIOLOGIA Ano de publicação: 2013 Tipo de documento: Article País de afiliação: Espanha País de publicação: Holanda
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Chironomidae / Genética Populacional Limite: Animals País/Região como assunto: America do sul / Argentina / Barbados / Bolivia / Caribe ingles / Chile Idioma: En Revista: Neotrop Entomol Assunto da revista: BIOLOGIA Ano de publicação: 2013 Tipo de documento: Article País de afiliação: Espanha País de publicação: Holanda