Individual specialization in the hunting wasp Trypoxylon (Trypargilum) albonigrum (Hymenoptera, Crabronidae)

dc.creatorAraujo, MS
dc.creatorGonzaga, MO
dc.date2007
dc.dateOCT
dc.date2014-11-19T07:50:44Z
dc.date2015-11-26T17:03:56Z
dc.date2014-11-19T07:50:44Z
dc.date2015-11-26T17:03:56Z
dc.date.accessioned2018-03-28T23:52:08Z
dc.date.available2018-03-28T23:52:08Z
dc.identifierBehavioral Ecology And Sociobiology. Springer, v. 61, n. 12, n. 1855, n. 1863, 2007.
dc.identifier0340-5443
dc.identifierWOS:000249401700006
dc.identifier10.1007/s00265-007-0425-z
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60080
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/60080
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60080
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279219
dc.descriptionIndividual-level variation in resource use occurs in a broad array of vertebrate and invertebrate taxa and may have important ecological and evolutionary implications. In this study, we measured the degree of individual-level variation in prey preference of the hunting wasp Trypoxylon albonigrum, which inhabits the Atlantic Forest in southeastern Brazil. This wasp captures several orb-weaving spider genera to provision nests. Individuals consistently specialized on a narrow subset of the prey taxa consumed by the population, indicating the existence of significant individual-level variation in prey preferences. The population niche was broader in the wet season in terms of both prey size and taxa. In the case of prey size, the population niche expansion was achieved via increased individual niche breadths, whereas in the case of prey taxa, individual niches remained relatively constrained, and the population niche expanded via increased interindividual variation. The observed pattern suggests the possibility of functional trade-offs associated with the taxon of the consumed prey. The nature of the trade-offs remains unknown, but they are likely related to learning in searching and/or handling prey. We hypothesize that by specializing on specific prey taxa, individuals increase foraging efficiency, reducing foraging time and ultimately increasing reproductive success.
dc.description61
dc.description12
dc.description1855
dc.description1863
dc.languageen
dc.publisherSpringer
dc.publisherNew York
dc.publisherEUA
dc.relationBehavioral Ecology And Sociobiology
dc.relationBehav. Ecol. Sociobiol.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectapoidea
dc.subjectlearning trade-offs
dc.subjectniche variation
dc.subjectintra-population variation
dc.subjectNiche Width
dc.subjectInterindividual Variation
dc.subjectFeeding Specialization
dc.subjectBluegill Sunfish
dc.subjectSpiders Araneae
dc.subjectPrey Selection
dc.subjectCosta-rica
dc.subjectPopulation
dc.subjectSphecidae
dc.subjectBrazil
dc.titleIndividual specialization in the hunting wasp Trypoxylon (Trypargilum) albonigrum (Hymenoptera, Crabronidae)
dc.typeArtículos de revistas


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