Results 161 to 170 of about 1,218 (187)
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A test of kin recognition in a heteronomous hyperparasitoid
Entomologia Experimentalis et Applicata, 1996Introduction equilibrium sex ratio depended on the probability that males developed at the expense of their sisters. When this probability was high, fue sex ratio was strongly female biased, whereas if low, fue sex ratio moved in favour of males. However, altemative explanations for adaptive sex ratios in heteronomous hyperparasitoids have since been ...
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Microsatellite markers for a hyperparasitoid wasp from a fragmented landscape
Conservation Genetics Resources, 2015We developed 31 microsatellite loci for a specialist hyperparasitoid wasp, Mesochorus cf. stigmaticus that parasitizes the parasitoid Hyposoter horticola, in Aland islands of southwestern Finland. The microsatellites were developed from 454 sequencing of the enriched libraries.
Nair Abhilash, van Nouhuys Saskya
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Apparent competition between parasitoids mediated by a shared hyperparasitoid
Ecology Letters, 2000Cocoons of the specialist parasitoidCotesia melitaearum, which attacks the Glanville fritillary butterfly in the Åland islands of SW Finland, are parasitized by the generalist hyperparasitoidGelis agilis. We added experimentally to the system a second host species forG. agilis,C. glomerata, with whichC. melitaearumdoes not compete for resources.
Saskya Van Nouhuys, Ilkka Hanski
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Environmental Entomology, 2014
The population dynamics of the cabbage aphid, Brevicoryne brassicae (L.), its parasitoid, Diaeretiella rapae McIntosh, and hyperparasitoids, Pachyneuron spp., were quantified under field conditions during 2011-2013, by examining synchronization, parasitoid: aphid ratio, possible effect of density on the finite rate of increase, and spatial coincidence.
Nematollahi, Mohammad Reza +4 more
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The population dynamics of the cabbage aphid, Brevicoryne brassicae (L.), its parasitoid, Diaeretiella rapae McIntosh, and hyperparasitoids, Pachyneuron spp., were quantified under field conditions during 2011-2013, by examining synchronization, parasitoid: aphid ratio, possible effect of density on the finite rate of increase, and spatial coincidence.
Nematollahi, Mohammad Reza +4 more
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Current Opinion in Insect Science, 2016
Parasitoids kill and live at the expense of their hosts, but they also serve as food for intraguild predators and hyperparasitoids. Natural enemy diversity can thus challenge herbivore suppression by parasitoids, but this depends on the ecological niches of the species involved and their functional diversity.
Enric Frago
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Parasitoids kill and live at the expense of their hosts, but they also serve as food for intraguild predators and hyperparasitoids. Natural enemy diversity can thus challenge herbivore suppression by parasitoids, but this depends on the ecological niches of the species involved and their functional diversity.
Enric Frago
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Evidence for a two-component external marking pheromone system in an aphid hyperparasitoid
Journal of Chemical Ecology, 1991The megaspilidDendrocerus carpenteri (Curtis) is a solitary ectohyperparasitoid of aphid primary parasitoids. It avoids superparasitism, but the avoidance rate depends on the amount of time elapsed after the first oviposition. In addition, females discriminate in a time-dependent manner between hosts parasitized by themselves and hosts parasitized by ...
C, Höller, H J, Williams, S B, Vinson
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Host selection and sex ratio in a heteronomous hyperparasitoid
Ecological Entomology, 1991Abstract. Encarsia tricolor Förster is a heteronomous hyperparasitoid: females develop as primary endoparasitoids of Homoptera, whereas males develop hyperparasitically in primary endoparasitoids, including ...
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Hyperparasitoids of Polysphinctine Darwin Wasps (Hymenoptera: Ichneumonidae) in South America
Austral Entomology, 2022Diego Galvão de Pádua +2 more
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Sequential allocation of offspring sexes in the hyperparasitoid wasp,
Animal Behaviour, 1996A. CHOW, M. MACKAUER
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