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Field Experiments Testing for Apparent Competition Between Primary Parasitoids Mediated by Secondary Parasitoids [PDF]

Journal of Animal Ecology, 2001
Summary  Two field manipulation experiments were performed to look for apparent competition between primary parasitoids of aphids, mediated by shared secondary parasitoids. In each case the frequency of secondary parasitism on a ‘focal’ species was compared in the presence or absence of a ‘treatment’ species and its aphid host.
Charles Godfray, Rebecca J Morris, Christine B Müller   +2 more
exaly   +4 more sources

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Intraspecific hyperparasitism in a primary hymenopteran parasitoid

Behavioral Ecology and Sociobiology, 1995
In solitary parasitoids, in which only one individual can emerge per host, the adaptive value of conspecific superparasitism is a function of the survival probability of the egg laid by the superparasitizing female. In the few cases which these probabilities are compared, the oldest immature has an advantage over the other individuals.
J. van Baaren, G. Boivin, J. P. Nénon
openaire   +2 more sources

Molecular Analysis Reveals High Compartmentalization in Aphid–Primary Parasitoid Networks and Low Parasitoid Sharing Between Crop and Noncrop Habitats

Molecular Ecology, 2014
AbstractThe ecosystem service of insect pest regulation by natural enemies, such as primary parasitoids, may be enhanced by the presence of uncultivated, semi‐natural habitats within agro‐ecosystems, although quantifying such host–parasitoid interactions is difficult.
Anne le Ralec, Stephane A P Derocles, Manuel PLANTEGENEST   +2 more
exaly   +5 more sources

The Secondary Parasitoid Perilampus tristis Mayr, 1905 and its Effect on the Primary Parasitoids on the Codling Moth, Cydia pomonella L.

Arab Journal for Plant Protection, 2023
Basheer, A., G. Ibrahim, N. Diab, K. Al-Assas, R. Alsaied Omar, F. Al-Ghammaz, H. Nasrallah and Y. Idris. 2023. The Secondary Parasitoid Perilampus tristis Mayr, 1905 and its Effect on the Primary Parasitoids on the Codling Moth, Cydia pomonella L. Arab Journal of Plant Protection, 41(2): 146-151. https://doi.org/10.22268/AJPP-41.2.146151 The study was
Abdel Nabi Basheer, Ghassan Ibraheem, Nesrine Diab, Rasheed Sayyed Omar, Firas Al Ghamaz, Hadi Nasrallah, Younis Idriss   +6 more
openaire   +1 more source

Reproductive Strategies of Primary Parasitoids of the Green Cloverworm (Lepidoptera: Noctuidae)

Environmental Entomology, 1991
Cotesia marginiventris (Cresson), Diolcogaster facetosa (Weed), and Rogas nolophanae Ashmead, which respectively parasitize progressively older green cloverworm, Plathypena scabra (F.) larvae, produced (x ± SE) 362.7 ± 24.1, 83.2 ± 11.4, 66.3 ± 6.1 offspring, respectively, during their lifetimes. Adult female longevity at 24°C averaged lS.l ± O.S, ~3.0
S. K. Braman, K. V. Yeargan
openaire   +1 more source

Does an Autoparasitoid Disrupt Host Suppression Provided by a Primary Parasitoid?

Ecology, 2002
Theory predicts that intraguild consumers such as predators or parasitoids may displace more specialized heterospecific competitors and thereby actually increase the population densities of a shared host or prey. We tested this idea with a native primary parasitoid, Eretmocerus eremicus, and an exotic autoparasitoid Encarsia sophia, both at- tacking ...
Martha S. Hunter, Timothy R. Collier, Suzanne E. Kelly   +2 more
openaire   +1 more source

Relationships between primary and secondary parasitoids of cereal aphids

Journal of Applied Entomology, 1998
Abstract: The aim of the study was to compare relationships between primary and secondary parasitoids associated with cereal aphids on winter as well as on spring crops. The study was carried out between 1991–1994 in two regions in Poland, 400 km apart (vicinities of Warsaw and Wrocław).
M. Pankanin‐Franczyk, G. Sobota
openaire   +1 more source