Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/67016
Type: Artigo de periódico
Title: Foraging by the flower-dwelling spider, Misumenops argenteus (Thomisidae), at high prey density sites
Author: Romero, GQ
Vasconcellos-Neto, J
Abstract: 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.
Subject: optimal foraging theory
patch choice
crab spider
Misumenops argenteus
Asteraceae
flowerhead
Brazil
Country: Inglaterra
Editor: Taylor & Francis Ltd
Rights: fechado
Identifier DOI: 10.1080/0022293031000155188
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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