| Texto completo | |
| Autor(es): |
Romero, Gustavo Q.
[1]
;
Vasconcellos-Neto, João
Número total de Autores: 2
|
| Afiliação do(s) autor(es): | [1] Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia - Brasil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Natural History; v. 38, n. 10, p. 1287-1296, May 2004. |
| Área do conhecimento: | Ciências Biológicas - Ecologia |
| Assunto(s): | Araneae Misumenops argenteus Asteraceae |
| Resumo | |
In this study, the foraging sites of the crab spider Misumenops argenteus on Trichogoniopsis adenantha (Asteraceae) were investigated over a 2-year period. The choice of sites was examined in relation to prey density in rainy and dry seasons, in leaves versus stems, reproductive branches versus vegetative branches, and in flowerheads in different phenophases. Misumenops argenteus generally occupied sites where the prey frequency was high, indicating that this species was able to evaluate the quality of the foraging sites, as predicted by optimal foraging theory. One exception to the rule was that adult males occurred at all sites, independently of prey density, as also observed in other spider species in which males search for females and not for prey. In addition, young (third and fourth instar) spiders occupied flowerheads with few prey, but which provided shelter. (AU) | |
| Processo FAPESP: | 98/15854-3 - Estudo experimental da associação entre Misumenops sp. (Araneae, Thomisidae) e Trichogoniopsis adenantha (Asteraceae) |
| Beneficiário: | Gustavo Quevedo Romero |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |