Intraguild predation among aphidophagous predators
نویسندگان
چکیده
منابع مشابه
Intraguild Predation Responses in Two Aphidophagous Coccinellids Identify Differences among Juvenile Stages and Aphid Densities
(1) Intraguild predation (IGP) can occur among aphidophagous predators thus reducing their effectiveness in controlling crop pests. Among ladybirds, Coccinella septempunctata L. and Hippodamia variegata Goeze are the most effective predators upon Aphis gossypii Glov., which is an economically important pest of melon. Understanding their likelihood to engage in reciprocal predation is a key poin...
متن کاملThe Ubiquity of Intraguild Predation among Predatory Arthropods
Intraguild predation (IGP) occurs when one predator species attacks another predator species with which it competes for a shared prey species. Despite the apparent omnipresence of intraguild interactions in natural and managed ecosystems, very few studies have quantified rates of IGP in various taxa under field conditions. We used molecular analyses of gut contents to assess the nature and inci...
متن کاملPredators, parasitoids, and pathogens: a cross-cutting examination of intraguild predation theory.
Although the canonical concept of intraguild predation evokes images of predators and prey, several subdisciplines within ecology have developed theory not specifically framed in terms of predation and competition and often using system-specific terminology, yet functionally quite similar. Here, we formulate models combining exploitation and competition in predator-prey, host-parasitoid, and ho...
متن کاملBiological control of toxic cyanobacteria by mixotrophic predators: an experimental test of intraguild predation theory.
Intraguild predators both feed on and compete with their intraguild prey. In theory, intraguild predators can therefore be very effective as biological control agents of intraguild prey species, especially in productive environments. We investigated this hypothesis using the mixotrophic chrysophyte Ochromonas as intraguild predator and the harmful cyanobacterium Microcystis aeruginosa as its pr...
متن کاملGeneralist predators disrupt parasitoid aphid control by direct and coincidental intraguild predation.
Generalist predators and parasitoids are considered to be important regulators of aphids. The former not only feed on these pests, but might also consume parasitoids at all stages of development. This direct or coincidental interference affects the natural control of aphids, the scale of which is largely unknown, and it has rarely been examined under natural conditions. Here, molecular diagnost...
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ژورنال
عنوان ژورنال: European Journal of Entomology
سال: 2005
ISSN: 1210-5759,1802-8829
DOI: 10.14411/eje.2005.052