| Texto completo | |
| Autor(es): |
Cancello, Eliana M.
[1]
;
Silva, Rogerio R.
[2]
;
Vasconcellos, Alexandre
[3]
;
Reis, Yana T.
[4]
;
Oliveira, Luis M.
[5]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo MZUSP, Museu Zool, BR-04263000 Sao Paulo - Brazil
[2] Museu Paraense Emilio Goeldi, BR-66077530 Belem, Para - Brazil
[3] Univ Fed Paraiba, Dept Sistemat & Ecol, Lab Termitol, BR-58051900 Joao Pessoa, Paraiba - Brazil
[4] Univ Fed Sergipe, Lab Entomol, Dept Biol, CCBS, BR-49100000 Sao Cristovao, SE - Brazil
[5] Embrapa Agrobiol, BR-23890000 Seropedica, RJ - Brazil
Número total de Afiliações: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Biotropica; v. 46, n. 4, p. 441-450, JUL 2014. |
| Citações Web of Science: | 21 |
| Resumo | |
In this study, we investigated the termites of the Brazilian Atlantic Forest, one of the most threatened biodiversity hotspots in the world, in regularly spaced sites from 7 degrees S to 27 degrees S latitude. To our knowledge, this is the only report of a latitudinal survey of termites at species level performed with a standardized sampling protocol. We evaluate termite diversity and abundance, and describe patterns of species composition based on feeding groups along the latitudinal gradient. We also describe the relative contribution of environmental variables to explain diversity patterns. Termite assemblages were investigated by standardized surveys at 15 Atlantic Forest sites, on six transects divided into five sections of 10 m(2), with 30 sections per site (or 300 m(2)/site), which were investigated by one trained person for one hour. Observed species richness and abundance were negatively correlated with latitude. The influence of latitude was explained mainly by variables related to temperature, precipitation and ambient energy (potential evapotranspiration). Our results also suggest that temperature exerts a greater constraint on Atlantic Forest termites than productivity, because ambient productivity increases with latitude in this forest but termite diversity decreases. Termite species richness in the Atlantic Forest showed a different pattern than those described for other organisms, increasing in diversity where the coastal-forest strip narrows. Overall, our results indicate comparatively high termite species richness at northeastern sites and a significant impoverishment of termite assemblages in the southeastern and southern regions of the Atlantic Forest. (AU) | |
| Processo FAPESP: | 98/05083-0 - Biodiversidade de Isoptera e Hymenoptera |
| Beneficiário: | Carlos Roberto Ferreira Brandão |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOTA - Temático |