Host growth form underlies enemy-free space for lichen-feeding moth larvae
نویسندگان
چکیده
منابع مشابه
Enemy-free space for parasitoids.
Natural enemies often cause significant levels of mortality for their prey and thus can be important agents of natural selection. It follows, then, that selection should favor traits that enable organisms to escape from their natural enemies into "enemy-free space" (EFS). Natural selection for EFS was originally proposed as a general force in structuring ecological communities, but more recentl...
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Natural enemies can be significant sources of mortality for herbivorous insects and therefore important agents of natural selection. One might expect selection to favor herbivores that escape from their natural enemies into enemy-free space. Although this is an appealing idea, it has received little empirical support, and no studies have documented enemy-free space as part of a nonagricultural,...
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Utilization of a novel plant host by herbivorous insects requires coordination of numerous physiological and behavioral adaptations in both larvae and adults. The recent host range expansion of the crucifer-specialist diamondback moth (DBM), Plutella xylostella L. (Lepidoptera: Plutellidae), to the sugar pea crop in Kenya provides an opportunity to study this process in action. Previous studies...
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متن کاملBehavioral adaptations increase the value of enemy-free space for Heliothis subflexa, a specialist herbivore.
We investigated the importance of specialized behaviors in the use of enemy-free space by comparing the host-use behavior of two closely related moths, Heliothis subflexa Guenee and H. virescens Fabricius. Heliothis subflexa is a specialist on plants in the genus Physalis, whereas H. virescens is an extreme generalist, feeding on plants in at least 14 families. Heliothis subflexa uses the infla...
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ژورنال
عنوان ژورنال: Journal of Animal Ecology
سال: 2011
ISSN: 0021-8790
DOI: 10.1111/j.1365-2656.2011.01866.x