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Cues of intraguild predators affect the distribution of intraguild prey
- Source :
- Oecologia, Oecologia, 163(2), 335-340. Springer Verlag
- Publication Year :
- 2010
- Publisher :
- Springer-Verlag, 2010.
-
Abstract
- Theory on intraguild (IG) predation predicts that coexistence of IG-predators and IG-prey is only possible for a limited set of parameter values, suggesting that IG-predation would not be common in nature. This is in conflict with the observation that IG-predation occurs in many natural systems. One possible explanation for this difference might be antipredator behaviour of the IG-prey, resulting in decreased strength of IG-predation. We studied the distribution of an IG-prey, the predatory mite Neoseiulus cucumeris (Acari: Phytoseiidae), in response to cues of its IG-predator, the predatory mite Iphiseius degenerans. Shortly after release, the majority of IG-prey was found on the patch without cues of IG-predators, suggesting that they can rapidly assess predation risk. IG-prey also avoided patches where conspecific juveniles had been killed by IG-predators. Because it is well known that antipredator behaviour in prey is affected by the diet of the predator, we also tested whether IG-prey change their distribution in response to the food of the IG-predators (pollen or conspecific juveniles), but found no evidence for this. The IG-prey laid fewer eggs on patches with cues of IG-predators than on patches without cues. Hence, IG-prey changed their distribution and oviposition in response to cues of IG-predators. This might weaken the strength of IG-predation, possibly providing more opportunities for IG-prey and IG-predators to co-exist.
- Subjects :
- 0106 biological sciences
Intraguild predation
Phytoseiidae
Food Chain
Time Factors
Oviposition
Behavioral Ecology - Original Paper
Ideal free distribution
medicine.disease_cause
Affect (psychology)
010603 evolutionary biology
01 natural sciences
Models, Biological
Predation
Predator avoidance
Pollen
medicine
Mite
Animals
Acari
Predator
Ecology, Evolution, Behavior and Systematics
Ecosystem
Ovum
Mites
Phytoseiid mites
biology
Ecology
Neoseiulus cucumeris
Feeding Behavior
biology.organism_classification
Adaptation, Physiological
Predator–prey interaction
010602 entomology
Predatory Behavior
Female
Subjects
Details
- Language :
- English
- ISSN :
- 14321939 and 00298549
- Volume :
- 163
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Oecologia
- Accession number :
- edsair.doi.dedup.....a26c1d7b9eb8d1ea444e756b07e6451d