Classifying life-style types of phytoseiid mites: diagnostic traits

Several traits are useful for identifying life-style types of predaceous phytoseiid mites when either 2 (diet generalist-specialist) or 4 (specialist I and II-generalist III and IV) type models [McMurtry J.A. and Croft B.A. 1997. Annu. Rev. Entomol. 42: 291-321] are considered. Traits useful for bot...

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Bibliographic Details
Published in:Experimental & applied acarology 2004-01, Vol.33 (4), p.247-260
Main Authors: Croft, B.A, Blackwood, J.S, McMurtry, J.A
Format: Article
Language:English
Subjects:
Animals
Behavior, Animal - physiology
Biological and medical sciences
Biological control
classification
Control
Ecology
Feeding Behavior - physiology
feeding preferences
Female
Fundamental and applied biological sciences. Psychology
generalist predators
Integrated pest control
Larvae
life history
life-style traits
Mites
Mites - anatomy & histology
Mites - classification
Mites - growth & development
Mites - physiology
Oviposition
Pest Control, Biological
Phytopathology. Animal pests. Plant and forest protection
Phytoseiidae
predation
predator-prey relationships
Predatory Behavior - physiology
predatory mites
Prey
Protozoa. Invertebrates
specialist predators
Tetranychus urticae
traits
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Summary:Several traits are useful for identifying life-style types of predaceous phytoseiid mites when either 2 (diet generalist-specialist) or 4 (specialist I and II-generalist III and IV) type models [McMurtry J.A. and Croft B.A. 1997. Annu. Rev. Entomol. 42: 291-321] are considered. Traits useful for both models are developmental time and oviposition rates when feeding on several food types. Discriminating for the 2-types model are dorsal shield setae lengths, and intra- and inter-specific predation. Another trait useful for both models is feeding preferences of adult female phytoseiids on eggs versus larvae of Tetranychus urticae Koch. In this paper, we review established and other traits that need more study such as mouthpart types, other morphological features, spider mite webbing effects, distributions relative to prey-foods, plant-host relationships including domatia and sap feeding, density-dependent responses to prey and predator-prey ratios required for biological control. Uses of life-style data in biological control decision-making are discussed.
ISSN:0168-8162
1572-9702
DOI:10.1023/B:APPA.0000038622.26584.82