Results 11 to 20 of about 1,218 (187)

Exploiting Chemical Ecology to Manage Hyperparasitoids in Biological Control of Arthropod Pests [PDF]

open access: yesPest Management Science, 2020
AbstractInsect hyperparasitoids are fourth trophic level organisms that commonly occur in terrestrial food webs, yet they are relatively understudied. These top‐carnivores can disrupt biological pest control by suppressing the populations of their parasitoid hosts, leading to pest outbreaks, especially in confined environments such as greenhouses where
Antonino Cusumano   +2 more
exaly   +15 more sources

Parasitoid wasp usurps its host to guard its pupa against hyperparasitoids and induces rapid behavioral changes in the parasitized host. [PDF]

open access: yesPLoS ONE, 2017
Some parasites have an ability to fabricate the behavior of their host and impel the host to guard parasites' offspring, which is popularly called as bodyguard manipulation.
Prabitha Mohan, Palatty Allesh Sinu
doaj   +2 more sources

Honeydew composition and its effect on life‐history parameters of hyperparasitoids [PDF]

open access: yesEcological Entomology, 2019
1. Diets that maximise life span often differ from diets that maximise reproduction. Animals have therefore evolved advanced foraging strategies to acquire optimal nutrition and maximise their fitness. The free‐living adult females of parasitoid wasps (Hymenoptera) need to balance their search for hosts to reproduce and for carbohydrate resources to ...
Frank A. C. van Neerbos   +6 more
core   +5 more sources

Semiochemicals Used by Insect Parasitoids and Hyperparasitoids in Complex Chemical Environments and Their Application in Insect Pest Management

open access: yesHorticulturae
Insect parasitoids are key biological agents within terrestrial ecosystems, offering a promising avenue for controlling insect pests. Hyperparasitoids are a group of insects that lay their eggs in or on the body of parasitoid hosts, which can greatly ...
Yalan Sun   +4 more
doaj   +2 more sources

Differing Host Exploitation Efficiencies in Two Hyperparasitoids: When is a ‘Match Made in Heaven’? [PDF]

open access: yesJournal of Insect Behavior, 2011
Host exploitation behavior in two hyperparasitoids, Lysibia nana and Gelis agilis, was compared in single cocoon clusters of their primary parasitoid host, Cotesia glomerata. L. nana reproduces sexually, is fully winged, does not host-feed and matures eggs quite rapidly after eclosion, whereas G. agilis possesses opposite traits.
Harvey, J.A., Wagenaar, R., Gols, R.
openaire   +6 more sources

Cascading effects of herbivore protective symbionts on hyperparasitoids [PDF]

open access: yesEcological Entomology, 2017
1. Microbial symbionts can play an important role in defending their insect hosts against natural enemies. However, researchers have little idea how the presence of such protective symbionts impacts food web interactions and species diversity. 2. This study investigated the effects of a protective symbiont (
McLean, A   +3 more
openaire   +4 more sources

Symbiotic polydnavirus and venom reveal parasitoid to its hyperparasitoids [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance Symbiotic relationships benefit organisms in utilization of new niches. In parasitoid wasps, symbiotic viruses and venom that are injected together with wasp eggs into the host caterpillar suppress immune responses of the host and enhance parasitoid survival.
Zhu, Feng   +10 more
openaire   +6 more sources

Divergent life history strategies in congeneric hyperparasitoids [PDF]

open access: yesEvolutionary Ecology, 2016
Life histories can reveal important information on the performance of individuals within their environment and how that affects evolutionary change. Major trait changes, such as trait decay or loss, may lead to pronounced differences in life history strategies when tight correlations between traits exist.
Visser, Bertanne   +4 more
openaire   +8 more sources

Plant Traits and Reproduction in a Multitrophic System: The Role of Aphids, Parasitoids and Hyperparasitoids

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 8, Page 822-830, August 2026.
This field mesocosm study examined the top‐down effects of hyperparasitoids, parasitoids and aphids on plant growth and fitness. Parasitoids reduced aphid populations, but this effect was attenuated by hyperparasitoids. However, these multitrophic interactions did not affect plant traits and reproduction, likely due to the plant's fast life cycle and ...
Mitchel E. Bourne   +4 more
wiley   +2 more sources

A Parasitoid of Aphids Manipulates Host Mummification Site, With Effects on Survival but Not Hyperparasitism. [PDF]

open access: yesEcol Evol
Parasitoid wasps can manipulate host behavior to enhance their own survival. Here we find that a parasitoid of aphids, Aphelinus chaonia, induces aphids to move to the leaf axil or leave the plant prior to pupation. This seems to have no effect on hyperparasitism, but mummy location may nevertheless impact parasitoid survival.
Reinmann N   +2 more
europepmc   +2 more sources

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