Behaviour and indirect interactions in food webs of plant-inhabiting arthropods

Janssen, Arne; Pallini, Ângelo; Venzon, Madelaine; Sabelis, Maurice W.

doi:10.1007/978-94-017-1343-6_16

Cited by 82 publications

(118 citation statements)

References 28 publications

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“…These first studies and many since (e.g., Dicke et al, 1990a,b;Takabayashi et al, 1991aTakabayashi et al, , 1994Scutareanu et al, 1997) show that P. persimilis and various other predators that use phytophagous mites as prey make effective use of a specific blend of mite-induced compounds to locate plants with prey. This well-studied model system has proven very valuable in revealing the intricacies and complexity of a multitude of interactions that can be affected by the herbivore-induced plant volatiles (Janssen et al, 1998;Sabelis et al, 1999).…”

Section: The Role Of Plant Volatiles As Prey and Host Location Cuesmentioning

confidence: 99%

“…An additional twist to the refinement of the interactions is that there is now clear evidence for information transfer among plants mediated by volatile signals (Arimura, et al, 2000a;Dolch and Tscharntke, 2000;Karban et al, 2000). These potent plant signals can be expected to affect multiple interactions within entire food webs (Janssen et al, 1998;Sabelis et al, 1999) and many more interchanges are likely to be discovered.…”

Section: Introductionmentioning

confidence: 99%

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Recruitment of predators and parasitoids by herbivore-injured plants

Turlings

Wäckers

2004

Advances in Insect Chemical Ecology

296

258

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Section: The Role Of Plant Volatiles As Prey and Host Location Cuesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recruitment of predators and parasitoids by herbivore-injured plants

Turlings

Wäckers

2004

Advances in Insect Chemical Ecology

296

258

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“…This implies that pest densities are not only determined by the natural enemies of that pest, but also by direct and indirect interactions with other pests and enemies, and such interactions can affect biological control (Rosenheim et al, 1995;Janssen et al, 1998). The use of one natural enemy to control several pests will result in food webs simpler than those in which different enemies are introduced against each pest species.…”

Section: Introductionmentioning

confidence: 99%

“…When two prey species share a natural enemy, the equilibrium density of one of the prey species decreases with increasing equilibrium density of the other species. This is because the density of the shared natural enemy increases with the increased equilibrium density of either prey species (Holt, 1977;Mü ller and Godfray, 1997;Janssen et al, 1998;van Rijn et al, 2002;Morris et al, 2004). This interaction can even lead to exclusion of one of the two prey species (Bonsall and Hassell, 1997).…”

Section: Introductionmentioning

confidence: 99%

Biological control of thrips and whiteflies by a shared predator: Two pests are better than one

et al. 2008

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Biological control of thrips and whiteflies by a shared predator: Two pests are better than one Messelink, G.J.; van Maanen, R.; van Steenpaal, S.E.F.; Janssen, A.R.M. General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. AbstractWe studied the capacity of one species of predator to control two major pests of greenhouse crops, Western flower thrips (Frankliniella occidentalis (Pergande)) and the greenhouse whitefly (Trialeurodes vaporariorum (Westwood)). In such a one-predator-two-prey system, indirect interactions can occur between the two pest species, such as apparent competition and apparent mutualism. Whereas apparent competition is desired because it brings pest levels down, apparent mutualism is not, because it does the opposite. Because apparent competition and apparent mutualism occurs at different time scales, it is important to investigate the effects of a shared natural enemy on biological control on a time scale relevant for crop growth. We evaluated the control efficacy of the predatory mites Amblyseius swirskii (Athias-Henriot) and Euseius ovalis (Evans) in cucumber crops in greenhouse compartments with only thrips, only whiteflies or both herbivorous insects together. Each of the two predators controlled thrips, but A. swirskii reduced thrips densities the most. There was no effect of the presence of whiteflies on thrips densities. Whitefly control by each of the two predators in absence of thrips was not sufficient, yet better with E. ovalis. However, whitefly densities in presence of thrips were reduced dramatically, especially by A. swirskii. The densities of predators were up to 15 times higher in presence of both pests than in the single-pest treatments. Laboratory experiments with A. swirskii suggest that this is due to a higher juvenile survival and developmental rate on a mixed diet. Hence, better control may be achieved not only because of apparent competition, but also through a positive effect of mixed diets on predator population growth. This latter phenomenon deserves more attention in experimental and theoretical work on biological control and apparent competition.

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“…As argued in relation to plant domatia, plants cannot impose sanctions to ban unwanted visitors. For example, infestation by coconut mites increases the distance between perianth and coconut surface, thereby promoting access to predatory mites ), but also to coconut moths that do not suffer from predation by these predators (Santana et al 2009 (Janssen et al 1998;Sabelis et al 1999aSabelis et al , 1999bSabelis et al , 2007. For example, odors from infested plants may trigger or prime the antiherbivore defenses of their neighbors (and thus their competitors) (Ton et al 2007).…”

Section: Herbivory-induced Alliancesmentioning

confidence: 99%