| Registro completo |
| Provedor de dados: |
Rev. Bras. Zool.
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| País: |
Brazil
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| Título: |
Spatial diversity patterns of birds in a vegetation mosaic of the Pantanal, Mato Grosso, Brazil
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| Autores: |
Signor,Cleiton Adriano
Pinho,João Batista
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| Data: |
2011-12-01
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| Ano: |
2011
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| Palavras-chave: |
Additive diversity
Beta diversity
Flood plains
Regional migration
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| Resumo: |
In this contribution we characterize the spatial diversity of bird populations in a heterogeneous landscape with respect to vegetation in the northern Pantanal region of Brazil. The method of additive partitioning of species diversity (γ = α + β) was used. Samples were collected in a grid with 30 sampling plots within a 25 km² area (5 x 5 km). A total of 163 bird species were found, comprising 114 resident species and 49 regional migrants. Most species were restricted spatially, with 58% found in a maximum of five sampling plots, while 15% were found in only one plot. The beta diversity comprised 77% of total diversity and was lower for residents than for regional migrants (66% and 88%, respectively). This suggests greater spatial heterogeneity in diversity patterns for regional migrants. Seasonal availability of resources caused by changing water levels as well as anthropogenic influences may also play a role in species diversity patterns by influencing species composition across sampling plots. High beta diversity and species-specific habitat occupancy suggest that conservation and management strategies should be implemented at a regional spatial scale and focus on the conservation of this environmental mosaic.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000600005
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| Editor: |
Sociedade Brasileira de Zoologia
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| Relação: |
10.1590/S1984-46702011000600005
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| Formato: |
text/html
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| Fonte: |
Zoologia (Curitiba) v.28 n.6 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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