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Short-term but not long-term patch avoidance in an orchid-pollinating solitary wasp

Whitehead, Michael; Peakall, Rodney

Description

The success of exploitative attraction of insect pollinators to rewardless flowers may depend on a constrained capacity for learning. In the case of sexually deceptive orchids, the extent to which pollinators can avoid dishonest signals through learning or adaptation is poorly known. We used field experiments with synthetic pheromone baits in concert with novel miniaturized marking techniques to investigate patterns of behavior and movement in Neozeleboria cryptoides, the wasp pollinator of the...[Show more]

dc.contributor.authorWhitehead, Michael
dc.contributor.authorPeakall, Rodney
dc.date.accessioned2015-12-10T23:35:11Z
dc.identifier.issn1045-2249
dc.identifier.urihttp://hdl.handle.net/1885/69744
dc.description.abstractThe success of exploitative attraction of insect pollinators to rewardless flowers may depend on a constrained capacity for learning. In the case of sexually deceptive orchids, the extent to which pollinators can avoid dishonest signals through learning or adaptation is poorly known. We used field experiments with synthetic pheromone baits in concert with novel miniaturized marking techniques to investigate patterns of behavior and movement in Neozeleboria cryptoides, the wasp pollinator of the sexually deceptive orchid Chiloglottis trapeziformis. In trials of 4-and 60-min duration, visitation rates to synthetic sex pheromone declined rapidly after the first minute and remained low, suggesting short-term avoidance. Using spatially explicit capture-recapture models, we then assessed if wasps maintained this avoidance for more than 24h. Among our 4 competing behavioral models, the best supported model was one which showed an increase in detection probability at a location for wasps that had previously been caught at that location. Therefore, we found no evidence for long-term patch avoidance. If spatial learning underpins the short-term avoidance we observed, then this information appears not to be retained beyond 24h. The typical patterns of N. cryptoides movement (range = 0-161 m, median = 14.8) coupled with short-term patch avoidance likely promote outcrossing in the clonal, self-compatible orchid it pollinates.
dc.publisherOxford University Press
dc.sourceBehavioral Ecology
dc.subjectKeywords: adaptation; avoidance reaction; flower; honest signaling; learning; long-term change; mark-recapture method; movement; outcrossing; patch dynamics; sex pheromone; sexual behavior; wasp; Chiloglottis trapeziformis; Hexapoda; Megascolia flavifrons; Neozeleb capture-mark-recapture; learning; mate search; pollination; sexual deception; spatially explicit capture-recapture; thynnine
dc.titleShort-term but not long-term patch avoidance in an orchid-pollinating solitary wasp
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume24
dc.date.issued2013
local.identifier.absfor060808 - Invertebrate Biology
local.identifier.absfor060399 - Evolutionary Biology not elsewhere classified
local.identifier.ariespublicationf5625xPUB2108
local.type.statusPublished Version
local.contributor.affiliationWhitehead, Michael, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationPeakall, Rodney, College of Medicine, Biology and Environment, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage162
local.bibliographicCitation.lastpage168
local.identifier.doi10.1093/beheco/ars149
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
dc.date.updated2016-02-24T08:54:14Z
local.identifier.scopusID2-s2.0-84871196483
local.identifier.thomsonID000312431000024
CollectionsANU Research Publications

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