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Parsimony analysis and ecological communities, phytosociology, nested subsets analysis, forest fragmentation: a reply to Giannini and Keller.
Pellens, Roseli; Grandcolas, Philippe; Guilbert, Eric.
Afiliação
  • Pellens R; Laboratório de Gestão da Biodiversidade, Depto. de Botânica/IB, UFRJ, CCS, BI.A, Ilha do Fundão, CEP 21941-590, Riode Janeiro, Brazil.
  • Grandcolas P; UMR 5202 CNRS, Département Systématique et Évolution, case 50, Muséum national d'Histoire naturelle, 45, rue Buffon, 75005 Paris, France.
  • Guilbert E; UMR 5202 CNRS, Département Systématique et Évolution, case 50, Muséum national d'Histoire naturelle, 45, rue Buffon, 75005 Paris, France.
Cladistics ; 23(4): 385-389, 2007 Aug.
Article em En | MEDLINE | ID: mdl-34905836
We suggested using parsimony analysis to study community evolution in terms of species composition and to apply these results in the context of forest fragmentation as a replacement for the so-called "nested subsets analysis" or other phenetic synecological or phytosociological methods (Pellens et al., 2005). Giannini and Keller (2007) took issue with this new application on the basis of three misunderstandings. We re-emphasize that communities themselves are analyzed, not landscape parts such as forest fragments. Therefore, it must be clear that communities are analogous to taxa and landscape parts such as fragments are analogous to distributions of taxa. Community evolution is the change in community composition by immigration, emigration and local extinction. Thus, gains and losses of species should not be confused with horizontal transfer. Parsimony analysis does not necessarily group communities based on shared absences of rare species. Rare species are not necessarily absent in the same communities and these absences are not necessarily inferred to be synapomorphies after rooting. This is the main advance expected when cladistics is used instead of the previously cited phenetic methods working with overall similarity.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Cladistics Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Cladistics Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos