Journal of Insect Behavior (2014) 27, 503-513

Lucas Del Bianco Faria, Juliana Tuller, Laís Ferreira Maia, Carolina Reigada and Wesley Augusto Conde Godoy (2014)
Alternative prey and abundance covariance switches an intraguild predator's functional response
Journal of Insect Behavior 27 (4), 503-513
Abstract: Positive or negative prey abundance covariances play an important role in determining prey preference of predators. The goal here was to understand how variations in abundance of two blowfly prey species, a native and a non-native species, influence the switching behavior and functional response of Chrysomya albiceps, an intraguild predatory blowfly, under laboratory conditions. The results suggest C. albiceps prefers to consume a native prey species rather than a non-native prey species. However, when prey densities covariate negatively, both species were consumed at the same rate, changing predator's functional response from type II to type III. The conditions that trigger the switching behavior in blowfly communities are discussed in detail in this study.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Carolina Reigada

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cochliomyia macellaria
Chrysomya albiceps (parasitoid)	Cochliomyia macellaria