Coexistence mechanisms at multiple scales in mosquito assemblages

Autor(es)

Laporta, Gabriel Zorello ^{[1, 2]} ; Sallum, Maria Anice Mureb ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Saude Publ, Dept Epidemiol, Sao Paulo - Brazil

^[2] Univ Sao Paulo, Fac Saude Publ, Lab Informat Med LIM 01, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: BMC ECOLOGY; v. 14, NOV 11 2014.
• Citações Web of Science: 10

Resumo

Background: Species coexistence in mosquito assemblages may depend on mechanisms related to interspecific resource partitioning occurring at multiple scales. In the present work we investigated co-occurrence or spatial segregation in mosquito assemblages sharing resources at micro-habitat, habitat and landscape scales. Environmental characteristics, mosquito fauna as adults and larvae were assessed along vegetation gradient in a natural landscape of tropical rainforest. Huisman-Olff-Fresco (HOF) and Generalized Additive (GAM) models were employed to explore relationships between abundances of potential competitors in mosquito assemblages and vegetation gradient (e.g., scrublands, mixed arboreal vegetation and dense ombrophilous forest). We tested hypotheses concerning mosquito species co-occurrence or spatial segregation employing binomial logistic regression models. Results: Co-occurrences and spatial segregation of mosquito species showed evidences of three scales of coexistence mechanisms: 1) micro-habitat - scale 1: different behaviors in response to food availability in specific vertical strata within larval container; 2) habitat - scale 2: specialized strategies related to heterogeneity of resource availability among larval containers and 3) landscape - scale 3: asymmetrical competition dependent upon the context of abiotic and biotic variables. Conclusion: Results of the present work suggest that coexistence mechanisms can concomitantly work at multiple scales. (AU)

• Processo FAPESP: 11/20397-7 - Taxonomia morfológica e molecular e filogenia do subgênero Nyssorhynchus do gênero Anopheles (Diptera: Culicidae), com ênfase especial em Anopheles darlingi da Mata Atlântica
• Beneficiário: Maria Anice Mureb Sallum
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/09939-5 - Compreensão dos efeitos da paisagem e da biodiversidade na dinâmica de transmissão de malária
• Beneficiário: Gabriel Zorello Laporta
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado