NDLI: Prey-stage preferences and functional and numerical responses of Amblyseius largoensis (Acari: Phytoseiidae) to Raoiella indica (Acari: Tenuipalpidae)

Content Provider	Springer Nature Link
Author	Carrillo, Daniel Peña, Jorge E.
Copyright Year	2011
Abstract	Raoiella indica Hirst (Acari: Tenuipalpidae) is a phytophagous mite that recently invaded the Western Hemisphere. This mite is a multivoltine and gregarious species that can reach very high population densities and cause significant damage to various palm species (Arecaceae). The predatory mite Amblyseius largoensis (Muma) (Acari: Phytoseiidae) has been found associated with R. indica in Florida. This study evaluated A. largoensis for potential to control R. indica by (1) determining predator preferences among developmental stages of R. indica, and (2) estimating predator functional and numerical responses to varying densities of its most preferred prey-stage. Under no-choice conditions A. largoensis consumed significantly more eggs than other stages of R. indica. In choice tests A. largoensis showed a significant preference for R. indica eggs over all other prey stages. Amblyseius largoensis displayed a type II functional response showing an increase in number of prey killed with an increase in prey population density. Consumption of prey stabilized at approximately 45 eggs/day, the level at which oviposition by the predator was maximized (2.36 ± 0.11 eggs/day; mean ± SEM). Results of this study suggest that A. largoensis can play a role in controlling R. indica populations, particularly when prey densities are low.
Starting Page	361
Ending Page	372
Page Count	12
File Format	PDF
ISSN	01688162
Journal	Experimental & Applied Acarology
Volume Number	57
Issue Number	3-4
e-ISSN	15729702
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-09-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mites Invasive species Cocos nucifera Raoiella indica Amblyseius largoensis Prey-stage preference Functional response Numerical response Life Sciences Animal Genetics and Genomics Animal Systematics/Taxonomy/Biogeography Animal Ecology Entomology
Content Type	Text
Resource Type	Article
Subject	Ecology Medicine Insect Science

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