Results 271 to 280 of about 91,039 (325)

Optimal Foraging by Parasitoid Wasps

The Journal of Animal Ecology, 1978
(1) Experiments have been described in which insect parasites were observed continuously searching in a patchy host habitat. (2) The results of these experiments have been used to examine in greater detail the predictions of the Cook & Hubbard (1977) model for the outcome of search by insect parasites and predators.
Hubbard, S. F., Cook, R.M.
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The state of parasitoid wasp genomics

Trends in Parasitology
Parasitoid wasps represent a group of parasitic insects with high species diversity that have played a pivotal role in biological control and evolutionary studies. Over the past 20 years, developments in genomics have greatly enhanced our understanding of the biology of these species.
Xinhai Ye, Yi Yang, Xianxin Zhao, Qi Fang, Gongyin Ye   +4 more
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Intrinsic Inter- and Intraspecific Competition in Parasitoid Wasps

Annual Review of Entomology, 2013
Immature development of parasitoid wasps is restricted to resources found in a single host that is often similar in size to the adult parasitoid. When two or more parasitoids of the same or different species attack the same host, there is competition for monopolization of host resources.
Harvey, J.A., Poelman, E.H., Tanaka, T.
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African fig wasp parasitoid communities

1994
Abstract What are fig trees and fig wasps? Fig trees are a group of approximately 850 species placed in the genus Ficus (Moraceae), and are characterized by their unique inflorescence-the fig. Around 105 Ficus species are found in Africa, where they range in size from small shrubs to huge rain forest emergents (Berg 1990; Berg and Wiebes
Compton, S.G., Rasplus, Jean Yves, Ware, A.B.   +2 more
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Mating systems of parasitoid wasps

1997
ABSTRACT Parasitoid wasps are a large group of hymenopteran insects whose larvae develop by feeding on the bodies of other insects. The spatial distributions of both the hosts and the parasitoid larvae influence the mating systems found in these wasps.
H. C. J. Godfray, J. M. Cook
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Selective information use in parasitoid wasps

Animal Biology, 2006
Abstract Foraging animals frequently have to decide where to search, what host or prey to accept, and when to leave a patch. To achieve optimal patch exploitation rates, foragers can base their decisions on information about the quality of the current patch and on an estimate of the quality of the entire habitat.
Andra Thiel, Thomas Hoffmeister
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Reproductive Strategies in Parasitoid Wasps

The American Naturalist, 1973
In an effort to explain different reproductive strategies among parasitoid wasps, differences in potential fecundity of members of the family Ichneumonidae were compared in relation to the availability of the host and the probability of survival of the parasitoid once it was associated with the host.
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Host-feeding strategies of parasitoid wasps

Evolutionary Ecology, 1993
Three models of the evolution of host-feeding behaviour in parasitoid wasps are developed. The first assumes that the wasp host feeds purely to obtain resources to mature eggs (limited resource model) while the second assumes that host feeding provides energy for maintenance (pro-ovigenic model).
M. S. Chan, H. C. J. Godfray
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Mixed sex allocation strategies in a parasitoid wasp

Oecologia, 1997
The sex allocation strategy of the parasitoid Laelius pedatus (Hymenoptera: Bethylidae) on different-sized hosts was investigated. The wasp lays from one to five eggs, and clutch size increases with host size. On the smallest hosts, single male eggs are laid, while on slightly larger hosts single female eggs are laid.
P J, Mayhew, H C J, Godfray
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Short Interval Time Measurement by a Parasitoid Wasp

Science, 1987
The number of eggs laid by the parasitoid wasp Trichogramma varies with host volume. The duration of the wasp's initial transit across the host surface during host examination is used to determine the number of eggs laid.
J M, Schmidt, J J, Smith
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