Conditional outcomes in a neotropical treehopper-ant association: temporal and species-specific variation in ant protection and homopteran fecundity

dc.creatorDel-Claro, K
dc.creatorOliveira, PS
dc.date2000
dc.dateAUG
dc.date2014-12-02T16:29:21Z
dc.date2015-11-26T16:52:36Z
dc.date2014-12-02T16:29:21Z
dc.date2015-11-26T16:52:36Z
dc.date.accessioned2018-03-28T23:39:34Z
dc.date.available2018-03-28T23:39:34Z
dc.identifierOecologia. Springer-verlag, v. 124, n. 2, n. 156, n. 165, 2000.
dc.identifier0029-8549
dc.identifierWOS:000088824100002
dc.identifier10.1007/s004420050002
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56466
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/56466
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56466
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1276329
dc.descriptionWe studied the association between the honeydew-producing membracid Guayaquila xiphias and its tending ants in the cerrado savanna of Brazil, during 1992 and 1993. Results showed that ants attack potential enemies of G. xiphias, and that increased ant density near the treehoppers affects the spatial distribution of parasitoid wasps on the host plant, keeping them away from brood-guarding G. xiphias females. Controlled ant-exclusion experiments revealed that ant presence (seven species) reduces the abundance of G. xiphias' natural enemies (salticid spiders, syrphid flies, and parasitoid wasps) on the host plant. The data further showed that ant-tending not only increased homopteran survival, but also conferred a direct reproductive benefit to G. xiphias females, which may abandon the first brood to ants and lay an additional clutch next to the original brood. Two years of experimental manipulations, however, showed that the degree of protection conferred by tending ants varies yearly, and that at initially high abundance of natural enemies the ant species differ in their effects on treehopper survival. Ant effects on treehopper fecundity also varied with time, and with shifts in the abundance of natural enemies. This is the first study to simultaneously demonstrate conditionality in ant-derived benefits related to both protection and fecundity in an ant-tended Membracidae, and the first to show the combined action of these effects in the same system.
dc.description124
dc.description2
dc.description156
dc.description165
dc.languageen
dc.publisherSpringer-verlag
dc.publisherNew York
dc.publisherEUA
dc.relationOecologia
dc.relationOecologia
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectants
dc.subjectconditional mutualism
dc.subjectGuayaquila xiphias
dc.subjectspecies-specific effects
dc.subjecttreehopper-ant association
dc.subjectLycaenid Butterfly Larvae
dc.subjectTending Ants
dc.subjectLimiting Resource
dc.subjectPlant-protection
dc.subjectSelective Agents
dc.subjectMutualism
dc.subjectHerbivore
dc.subjectNectaries
dc.subjectAphids
dc.subjectCompetition
dc.titleConditional outcomes in a neotropical treehopper-ant association: temporal and species-specific variation in ant protection and homopteran fecundity
dc.typeArtículos de revistas


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