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Predator recognition and evasive behavior by sweat bees, Lasioglossum umbripenne (Hymenoptera: Halictidae), in response to predation by ants, Ectatomma ruidum (Hymenoptera: Formicidae)

Show simple item record Weislo, William T. Schatz, Bertrand 2016-02-21T22:22:04Z 2016-02-21T22:22:04Z 2003-02
dc.identifier.citation Wcislo, W. T., & Schatz, B.. (2003). Predator Recognition and Evasive Behavior by Sweat Bees, Lasioglossum umbripenne (Hymenoptera: Halictidae), in Response to Predation by Ants, Ectatomma ruidum (Hymenoptera: Formicidae). Behavioral Ecology and Sociobiology, 53(3), 182–189. es_CR
dc.identifier.uri 10.1007/s00265-002-0564-1
dc.description.abstract Ectatomma ruidum is an abundant soil-nesting Neotropical ant, which displays extensive behavioral flexibility during foraging activities. We studied here one unusual element of their behavioral repertoire: ambush predation. A worker of E. ruidum waits near a nest of a social sweat bee, Lasioglossum umbripenne, lunging at incoming bees, or less frequently, at departing bees. However, bees detected ambushing ants and modified their behavior. Dead ants placed at bees’ nest entrances significantly decreased bee activity, indicating that bees recognized dead ants as potential predators. Neither simple black models (square and rectangle) nor olfactory cues had any effect on overall bee activity. A returning bee usually approached her entrance and immediately entered, but if an ant was waiting at the nest, a bee was significantly more likely to abort the first approach flight and then to re-approach the nest on the side opposite the ant’s position. As models became increasingly ant-like, returning bees more frequently aborted their first approach flight, expressing other behaviors before entering nests. These behaviors included withdrawal followed by an approach from a different direction; zigzagging flights, either from a distance or close to the entrance or even a close inspection; landing a short distance from the nest, then approaching on foot or waiting for several seconds before entering. Ants responded with effective counter-behaviors. Behavioral flexibility in nest entering/exiting by L. umbripenne and in hunting strategy by E. ruidum shows the complexity of this predator-prey relationship, and illustrates the importance of information processing by both species involved in determining the outcome of the interspecific interaction. es_CR
dc.language.iso en_US es_CR
dc.publisher Behavioral Ecology and Sociobiology es_CR
dc.subject Behavioral flexibility es_CR
dc.subject Anti-predator behavior es_CR
dc.subject Pattern recognition es_CR
dc.subject Predator-prey relationships es_CR
dc.subject flexibilidad de comportamiento es_CR
dc.subject comportamiento antidepredador es_CR
dc.subject reconocimiento de formas es_CR
dc.subject relaciones depredador-presa es_CR
dc.title Predator recognition and evasive behavior by sweat bees, Lasioglossum umbripenne (Hymenoptera: Halictidae), in response to predation by ants, Ectatomma ruidum (Hymenoptera: Formicidae) es_CR
dc.type Article es_CR

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