Foraging for Patchily-Distributed Leaf-Miners by the Parasitoid, Dapsilarthra rufiventris (Hymenoptera : Braconidae) : I. Discrimination of Previously Searched Leaflets

Sugimoto, Tuyosi; Uenishi, Masaaki; Machida, Fumitoshi

doi:10.1303/aez.21.500

Cited by 26 publications

(21 citation statements)

References 6 publications

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“…Also, as previously reported. (Sugimoto et al 1986), these values did not vary much in the successive visits by the same female to 5 different leaflets of density 5.…”

Section: Habituation Of Response To Host-produced Factormentioning

confidence: 71%

“…Larvae of P. ranunculi are distributed patchily among leaflets of the host plant. The female of D. rufiventris appears to deposit a marking pheromone on the leaflet during host search (Sugimoto et al 1986). …”

mentioning

confidence: 99%

“…Such site discrimination by parasitoids may be closely related to the stopping rule for deciding when to leave the patch (Hassell & Southwood 1978;Sugimoto et al 1986).…”

mentioning

confidence: 99%

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Foraging for patchily-distributed leaf-miners by the parasitoid,Dapsilarthra rufiventris (Hymenoptera: Braconidae). II. Stopping rule for host search

1987

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Abstract-We studied the stopping rule which the female parasitoid, Dapsilarthra rufiventris, uses for deciding when to leave the leaflet on which she is searching for leaf-mining larvae, Phytomyza ranunculL She is unlikely to employ some current stopping rules, such as fixed-number and fixed-time rules and others. The searching female appears to deposit a marking pheromone on the leaflet. We formulated a model for predicting the amount of pheromone accumulated on the leaflet. The model assumes that she will deposit the pheromone on the leaflet at a given rate (a) per unit time which is proportional to search speed, and will leave it when the amount of pheromone reaches the threshold L. In this model L denotes the amount of the search effort spent on the leaflet. The model was fitted fairly well to the data. A comparison of the observed results with the pre~lictions of the model suggests that L increases markedly at the first encounter with the mine and at a lower rate for the subsequent encounters. This appears to be a kind of area-concentrated search, that is, searching for hosts for a while in the immediate vicinity after finding one host, and would be adaptive in foraging for P. ranunculi larvae, which exhibit clumped distributions among leaflets in the field.

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“…Also, as previously reported. (Sugimoto et al 1986), these values did not vary much in the successive visits by the same female to 5 different leaflets of density 5.…”

Section: Habituation Of Response To Host-produced Factormentioning

confidence: 71%

mentioning

confidence: 99%

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Foraging for patchily-distributed leaf-miners by the parasitoid,Dapsilarthra rufiventris (Hymenoptera: Braconidae). II. Stopping rule for host search

1987

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“…Dispersal by females away from patches containing marked hosts is often correlated with a decrease in time spent searching within a patch of hosts (Price, 1970;Sugimoto et al, 1986;Sheehan et al, 1993). In the bean weevil, Acanthoscelides obtectus, and the flour moth, Ephestia (= Anagasta) kuehniella, MP increases the length of larval wandering periods that precede consumption of their larval resources.…”

Section: Effects Of Mps On Female Behaviormentioning

confidence: 99%

“…In still other insects, females mark substrates around exploited host patches (Price, 1970;Waage, 1979;Sugimoto et al, 1986). Such behavior can improve detection of a MP and reduce the time needed for host assessment (Hoffmeister & Roitberg, 1997).…”

Section: Costs Of Marking Hostsmentioning

confidence: 99%

Host marking behavior in phytophagous insects and parasitoids

Nufio¹,

Papaj²

2001

Entomologia Exp Applicata

189

147

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Oviposition behavior in phytophagous insects and entomophagous parasitoids is often modified by the presence of conspecific brood (eggs and larvae). Often, females avoid laying eggs on or in hosts bearing brood, a behavior that acts to reduce the level of competition suffered by their offspring. Avoidance of occupied hosts is typically mediated by cues and/or signals associated with brood. In this article, we review the role of Marking Pheromones (MPs) as signals of brood presence in both phytophagous and entomophagous insects. We place information about the function and evolution of MPs in the context of recent theory in the field of animal communication. We highlight the dynamics of host-marking systems and discuss how effects of MPs vary according to factors such as female experience and egg load. We also examine variation in the form and function of MP communication across a variety of insect taxa. While studies of MP communication in phytophagous insects have focused on the underlying behavioral mechanisms and chemistry of MP communication, studies in entomophagous insects have focused on the functional aspects of MPs and their role in 'decision-making' in insects. We argue that an approach that incorporates the important contributions of both of these somewhat independent, but complementary areas of research will lead to a more complete understanding of MPs in insects. Finally, we suggest that MP systems are model systems for the study of animal signaling and its evolution.

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Evolutionary Ecology of Oviposition Marking Pheromones

Hoffmeister¹,

Roitberg²

2003

Chemoecology of Insect Eggs and Egg Deposition

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Foraging for Patchily-Distributed Leaf-Miners by the Parasitoid, Dapsilarthra rufiventris (Hymenoptera : Braconidae) : I. Discrimination of Previously Searched Leaflets

Cited by 26 publications

References 6 publications

Foraging for patchily-distributed leaf-miners by the parasitoid,Dapsilarthra rufiventris (Hymenoptera: Braconidae). II. Stopping rule for host search

Foraging for patchily-distributed leaf-miners by the parasitoid,Dapsilarthra rufiventris (Hymenoptera: Braconidae). II. Stopping rule for host search

Host marking behavior in phytophagous insects and parasitoids

Evolutionary Ecology of Oviposition Marking Pheromones

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