Arrestment responses of the parasitoid, <i>Nemeritis canescens</i>, to a contact chemical produced by its host, <i>Plodia interpunctella</i>

Waage, J. K.

doi:10.1111/j.1365-3032.1978.tb00143.x

Cited by 159 publications

(116 citation statements)

References 48 publications

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“…Substrate-borne chemicals often elicit "arrestment" or "area restricted search" (33) mi2, nearly 100% of 2-day-old females would be mated for all of the giving-up times we modeled. Our model also predicts that the time required for a female to be encountered by a male would be short enough to result in most females being mated for the majority of their lives.…”

Section: Discussionmentioning

confidence: 99%

Mate finding via a trail sex pheromone by a parasitoid wasp.

Fauvergue¹,

Hopper²,

Antolin³

1995

Proc. Natl. Acad. Sci. U.S.A.

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In field observations and laboratory experiments, we found that virgin females of the solitary parasitoid Aphelinus asychis did not emit a volatile sex pheromone to attract males, contrary to what has been reported in many other parasitoid species. Instead, we found that virgin females deposited a sex pheromone on the substrate to which males responded by intensively searching on and near the marked area. Males did not respond to leaves exposed to mated females or to other males. In patches of 64 wheat leaves, males were dispersed from a central release point, and more males were subsequently observed on leaves exposed to virgin females than on unexposed leaves. The pheromone faded to inactivity in less than 24 h. To examine whether the trail pheromone would be sufficient for mate finding by males in the field, we modeled random movement of males among plant stems where the trail pheromone was the only cue males used to find females. The probability that females encountered at least one male in their lifetime increased with male density and time after female emergence. Given the range of densities of A. asychis in barley and wheat fields near Montpellier, France, the model generated an encounter probability sufficient to explain the survival of established populations. The model also suggested that difficulty in finding mates at low density might be a problem for invading populations.

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Section: Discussionmentioning

confidence: 99%

Mate finding via a trail sex pheromone by a parasitoid wasp.

Fauvergue¹,

Hopper²,

Antolin³

1995

Proc. Natl. Acad. Sci. U.S.A.

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“…In this time the memory of food may have lost its strength, but was still strong enough to keep female C. rubecula responsive to their environment. Apart from time passed after encountering the odor source the success linked with it and the odor concentration will affect the waning of the responsiveness as well (Waage, 1978). As nectar-experienced female C. rubecula were as active and successful in finding resources as well-fed wasps, the question arises if sampling the food source on the previous day substantially increased their nutritional state.…”

Section: Response To Flowersmentioning

confidence: 99%

The Sweet Tooth of Adult Parasitoid Cotesia rubecula: Ignoring Hosts for Nectar?

Siekmann

Keller

Tenhumberg

2004

Journal of Insect Behavior

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Investing time and energy into survival and reproduction often presents a trade-off to many species of animals. In parasitic wasps, both hosts and sugar sources contribute to the forager's fitness but are often found in different locations. The decision to search for hosts or for food can have a strong impact on fitness when the forager's lifetime is short and resources are not abundant. We investigated the tendency of flowers and hosts to attract 1-day-old female Cotesia rubecula Marshall (Hymenoptera: Braconidae) with different feeding histories in a wind tunnel. Only well-fed wasps exhibited a preference for hosts. In comparison, unfed wasps visited hosts and flowers in equal proportions. Feeding experience had a strong impact on the searching behavior and the number of landings on both resources. Host and food stimuli seem to be equally attractive to hungry parasitic wasps such as C. rubecula. We expect that under field conditions the time available for active food searching in female C. rubecula is short and influenced by the presence of hosts.

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“…19, 45, 157,190,200). It is an important process that is thought to be the underlying mechanism making parasitoids eventually disperse from patches if foraging is not or is no longer profitable (190). Habituation to synomones still unstudied.…”

mentioning

confidence: 99%

Ecology of Infochemical Use by Natural Enemies in a Tritrophic Context

Vet¹,

Dicke²

1992

Annu. Rev. Entomol.

1,581

1,279

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KEY WORDS:predators, parasitoids, searching behavior, learning, evolutionary theory, integrated pest management PERSPECTIVES AND OVERVIEW Parasitoids and predators of herbivores have evolved and function within a multitrophic context. Consequently, their physiology and behavior are influenced by elements from other trophic levels such as their herbivore victim (second trophic level) and its plant food (first trophic level) (126). Natural enemies base their foraging decisions on information from these different trophic levels, and chemical information plays an important role. This review is restricted to the ecology of chemical information from the first and second trophic levels. The importance of so-called infochemicals, a subcategory of semiochemicals, in foraging by parasitoids and predators has been well documented (e.g. reviewed in 31,78,111,183,185), and we do not intend repeat the details. But because of a lack of testable hypotheses, all this research is conducted rather haphazardly: the total puzzle of infochemical use has not been solved for any natural enemy species. Here we approach the use of infochemicals by natural enemies from an evolutionary and ecological standpoint. Our basic concept is that information from the first and second trophic levels differs in availability and in reliability, a difference that shapes the way infochemicals are used by a species. We generate hypotheses on (a) 141

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Arrestment responses of the parasitoid, Nemeritis canescens, to a contact chemical produced by its host, Plodia interpunctella

Cited by 159 publications

References 48 publications

Mate finding via a trail sex pheromone by a parasitoid wasp.

Mate finding via a trail sex pheromone by a parasitoid wasp.

The Sweet Tooth of Adult Parasitoid Cotesia rubecula: Ignoring Hosts for Nectar?

Ecology of Infochemical Use by Natural Enemies in a Tritrophic Context

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