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Bird species diversity in the Atlantic Forest of Brazil is not explained by the Mid-domain Effect Rev. Bras. Zool.
Cavarzere,Vagner; Silveira,Luís Fábio.
The Atlantic Forest is an excellent case study for the elevational diversity of birds, and some inventories along elevational gradients have been carried out in Brazil. Since none of these studies explain the patterns of species richness with elevation, we herein review all Brazilian studies on bird elevational diversity, and test a geometric constraint null model that predicts a unimodal species-altitude curve, the Mid-domain Effect (MDE). We searched for bird inventories in the literature and also analysed our own survey data using limited-radius point counts along an 800 m elevational gradient in the state of São Paulo, Brazil. We found 10 investigations of elevational diversity of Atlantic Forest birds and identified five different elevational...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Altitudinal gradient; Avian species richness; Geometric constraints; Mountain ecology; Null model; Rain forest.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000400001
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Diversité ichtyologique en Méditerranée : patrons, modélisation et projections dans un contexte de réchauffement global ArchiMer
Ben Rais Lasram, Frida.
Due to its semi-enclosed shape, to its high species richness and high endemism levels and to its invasiveness, the Mediterranean Sea is one of the most particular and critical ecosystems of the world. The Mediterranean has been intensively studied since the Antiquity, yet foundations underlying fish diversity patterns have been overlooked. In this study, as a first step, we studied fish diversity patterns in the Mediterranean and their determinants. Towards this objective, we built the first comprehensive database on the spatial distributions of the 619 Mediterranean fish species. We then carried out spatial analyses in order to assess the relative contribution of historical and geometric contingencies as well as environmental influences in shaping fish...
Tipo: Text Palavras-chave: Niche modeling; Global warming; Climatic envelopes; Geometric constraints; Endemism; Exotic invasions; Mediterranean Sea; Modélisation des niches; Réchauffement global; Enveloppes climatiques; Contraintes géométriques; Endémisme; Invasions exotiques; Mer Méditerranée.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/these-7407.pdf
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