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Ecological Factors and Diversification among Neotropical Characiforms


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dc.creator Guisande González, Cástor es
dc.creator Pelayo Villamil, Patricia es
dc.creator Vera, Manuel es
dc.creator Manjarrés Hernández, Ana es
dc.creator Carvalho, Monica R. es
dc.creator Granado Lorencio, Carlos Antonio es 2016-11-21T12:44:51Z 2016-11-21T12:44:51Z 2012
dc.identifier.citation Guisande González, C., Pelayo Villamil, P., Vera, M., Manjarrés Hernández, A., Carvalho, M.R. y Granado Lorencio, C.A. (2012). Ecological Factors and Diversification among Neotropical Characiforms. International Journal of Ecology, 2012, 1-20.
dc.identifier.issn 1687-9708 es
dc.description.abstract Morphological and DNA sequence data has been used to propose hypotheses of relationships within the Characiformes with minimal comparative discussion of causes underpinning the major intraordinal diversification patterns. We explore potential primary morphological factors controlling the early diversification process in some Neotropical characiforms as the first step to identifying factors contributing to the pronounced intraordinal morphological and species diversity. A phylogenetic reconstruction based on 16S rDNA (mitochondrial) and 18S rDNA (nuclear) genes provided the framework for the identification of the main morphological differences among the Acestrorhynchidae, Anostomidae, Characidae, Ctenoluciidae, Curimatidae, Cynodontidae, Gasteropelecidae, Prochilodontidae and Serrasalmidae. Results indicate an initial split into two major groupings: (i) species with long dorsal-fin bases relative to the size of other fins (Curimatidae, Prochilodontidae, Anostomidae, Serrasalmidae) which primarily inhabit lakes, swamps, and rivers (lineage I); and (ii) species with short dorsal-fin bases (Acestrorhynchidae, Gasteropelecidae, Characidae) which primarily inhabit creeks and streams (lineage II). The second diversification stage in lineage I involved substantial morphological diversification associated with trophic niche differences among the monophyletic families which range from detritivores to large item predators. Nonmonophyly of the Characidae complicated within lineage II analyzes but yielded groupings based on differences in pectoral and anal fin sizes correlated with life style differences. es
dc.description.sponsorship España, Ministerio de Educación y Ciencia CGL2006-02155 BOS es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher Hindawi Publishing Corporation es
dc.relation.ispartof International Journal of Ecology, 2012, 1-20.
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights.uri *
dc.title Ecological Factors and Diversification among Neotropical Characiforms es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/publishedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Biología Vegetal y Ecología es
dc.relation.projectID CGL2006-02155 BOS es
dc.relation.publisherversion es
dc.identifier.doi 10.1155/2012/610419 es
idus.format.extent 20 p. es
dc.journaltitle International Journal of Ecology es
dc.publication.volumen 2012 es
dc.publication.initialPage 1 es
dc.publication.endPage 20 es
dc.contributor.funder Ministerio de Educación y Ciencia (MEC). España
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