Broad-scale spatial patterns of canopy cover and pond morphology affect the structure of a Neotropical amphibian metacommunity

Autor(es)

Provete, Diogo B. ^[1] ; Goncalves-Souza, Thiago ^[2] ; Garey, Michel V. ^[3] ; Martins, Itamar A. ^[4] ; Rossa-Feres, Denise de C. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, BR-15054000 Sao Paulo - Brazil

^[2] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, BR-13083862 Sao Paulo - Brazil

^[3] Univ Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, Dept Bot & Zool, BR-15054000 Sao Paulo - Brazil

^[4] Univ Taubate, Zool Lab, Dept Biol, Inst Ciencias Biol, BR-12030180 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Hydrobiologia; v. 734, n. 1, p. 69-79, AUG 2014.
• Citações Web of Science: 16

Resumo

Spatial and environmental processes influence species composition at distinct scales. Previous studies suggested that the distribution of larval anurans at the landscape-scale is influenced by environmental gradients related to adult breeding site selection, such as pond canopy cover, but not by water chemistry. However, the combined effects of spatial, pond morphology, and water chemistry variables on metacommunity structure of larval anurans have not been analyzed yet. We used a partial redundancy analysis with variation partitioning to analyze the relative influence of pond morphology (e.g., depth, area, and aquatic vegetation), water chemistry, and spatial variables on a tadpole metacommunity from southeastern Brazil. We predict that pond morphology and canopy cover will influence the metacommunity at broad spatial scales, while water chemistry would play a larger role at finer scales. We found that broad-scale spatial patterns of pond canopy cover and pond morphology strongly influenced metacommunity structure, with water chemistry being not significant. Additionally, species composition was spatially autocorrelated at short distances. We suggest that the reproductive behavior of adult anurans is driving tadpole metacommunity dynamics, since pond morphology, but not water chemistry affects breeding site selection by adults. Our results contribute to the understanding of amphibian species diversity in tropical wetlands. (AU)

• Processo FAPESP: 01/13341-3 - Diversidade de anfíbios anuros do estado de São Paulo
• Beneficiário: Célio Fernando Baptista Haddad
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 08/58979-4 - Aranhas associadas a plantas em restingas ao longo da costa brasileira: efeitos da arquitetura da vegetacao e da distancia geografica sobre a estrutura de comunidades
• Beneficiário: Thiago Gonçalves Souza
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 06/56007-0 - Comunidades de anfíbios anuros em diferentes gradientes altitudinais na região da Serra da Mantiqueira, SP
• Beneficiário: Itamar Alves Martins
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 08/50575-1 - Estrutura da comunidade de anfibios do parque nacional da serra da bocaina, sao paulo, brasil.
• Beneficiário: Michel Varajão Garey
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 08/55744-6 - Uso de recursos e padrao de co-ocorrencia com insetos predadores em comunidades sub-tropicais de girinos.
• Beneficiário: Diogo Borges Provete
• Modalidade de apoio: Bolsas no Brasil - Mestrado