Predation potency and intraguild interactions between generalist (Forficula auricularia) and specialist (Episyrphus balteatus) predators of the rosy apple aphid (Dysaphis plantaginea)

Dib, Hazem; Jamont, Marie; Sauphanor, Benoît; Capowiez, Yvan

doi:10.1016/j.biocontrol.2011.07.012

Cited by 46 publications

(33 citation statements)

References 46 publications

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“…These results add to the body of evidence that the term generalist is an uninformative typology and yet E . balteatus is still referred to both as a generalist (Table ) and a specialist (Miñarro, Hemptinne & Dapena, ; Dib et al ., ).…”

Section: An Alternative Interpretation Of the Behaviour Of Predatory mentioning

confidence: 97%

The conceptual and practical implications of interpreting diet breadth mechanistically in generalist predatory insects

Finlay-Doney

Walter

2012

Biol J Linn Soc Lond

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The concept of ecological generalism (or polyphagy) is widely used in ecology to describe and predict aspects of the behaviour of predatory insects, notably with regard to the management of insect pests. The assumptions of ecological generalism have their basis in competition and optimization. We review the historical context and perspectives that led to the development of the concept of ecological generalism as it is applied to diet breadth in predatory insects. We identify how flaws in this concept limit its utility in describing and predicting the behaviour of organisms. We re‐analyse the behavioural expectations of putatively generalist organisms with a focus on the mechanistic aspects of predation; that is, we develop an interpretation based on the adaptations that mediate their responses to particular cues in their environment. This mechanistic analysis emphasizes the need to determine the primary environmental associations of putatively generalist species, and the adaptations that underpin those associations. This approach thus highlights the importance of appropriate matching of predator species to prey species in biological control, based on an understanding of these adaptations and associations. © 2012 The Linnean Society of London, Biological Journal of the Linnean Society, 2012, ••, ••–••.

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Section: An Alternative Interpretation Of the Behaviour Of Predatory mentioning

confidence: 97%

The conceptual and practical implications of interpreting diet breadth mechanistically in generalist predatory insects

Finlay-Doney

Walter

2012

Biol J Linn Soc Lond

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“…The larvae of this species are predators on more than 200 species of aphids worldwide (Gilbert, 2005). Dib et al (2011) measured individual and combined effects of both predator species on suppression of RAA on detached plantain (Plantago lanceolata L.) leaves in plastic Petri dishes. In addition, although eggs as well as first and second instars of E. balteatus are highly susceptible to predation, third instars can kill larvae and nymphs of other aphidophagous predators .…”

Section: Introductionmentioning

confidence: 99%

“…Since the maximum predacious activity of E. balteatus (Ankersmit et al, 1986) occurs at night, like F. auricularia, and the rolled apple leaves can be used as shelters by these nocturnal insects during the day, this coexistence in space and time could increase the possibility of IGP between earwigs and syrphids. Moreover, in the Petri dishes the aphids have decreased mobility and their main escaping abilities, such as excreted droplets (Mandour et al, 2006), alarm pheromones (Almohamad et al, 2008), and dropping techniques (Lucas et al, 1997) are not effective (Dib et al, 2011). Therefore, depending on the date of earwig release, different types of interaction between F. auricularia and E. balteatus may occur depending on the larvae instars of E. balteatus under consideration.…”

Section: Introductionmentioning

confidence: 99%

Individual and combined effects of the generalist Forficula auricularia and the specialist Episyrphus balteatus on Dysaphis plantaginea – are two predators better than one?

Dib

Jamont

Sauphanor

et al. 2016

Entomologia Exp Applicata

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Individual and combined effects of the generalist Forficula auricularia and the specialist Episyrphus balteatus on Dysaphis plantagineaare two predators better than one? AbstractThe interactions between specialist and generalist natural enemies could affect the success of biological pest control, especially in augmentation programmes. The aim of this laboratory study was to quantitate the individual and combined effects of the generalist predator Forficula auricularia L. (Dermaptera: Forficulidae) and the specialist Episyrphus balteatus De Geer (Diptera: Syrphidae) on the population growth of the rosy apple aphid (RAA), Dysaphis plantaginea Passerini (Hemiptera: Aphididae). The experiment was carried out using apple seedlings with five levels of initial RAA infestation. In most cases, both predator species (alone and in combination) were able to reduce RAA densities or to keep them at their initial level. This suppression effect was greater when RAA densities were low and resulted in near-complete mortality of the RAA colony after 4-6 days. Without predators, RAA population size almost doubled within 10 days, whereas with predators, RAA population size was reduced by about 20 (alone) and 50% (in combination). Although RAA numbers in the two-predators treatment were ca. 81% of RAA numbers in the one-predator treatment for pooled numbers across dates and densities, the difference between the two treatments was not significant. Some predator mortality occurred with first and second instars of the syrphid larvae and only at the two lowest initial RAA infestation levels. This mortality may be explained by inadequate food supply, intraguild predation (IGP) (in 13.3% of the possible cases), or both. However, the incidence of IGP under natural conditions could be even less frequent, as both predators were never observed on the same leaf.

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“…Earwigs are crop-pest predators and therefore of interest for biological control (Dib et al 2011). A large-scale rearing system of D. lineare would benefit from the following findings: 1) The rearing set-up proposed by Pasini et al (2007) is effective, as long as it is kept humid, and straw color does not matter.…”

Section: Discussionmentioning

confidence: 99%

Maternal Care by the Earwig Doru lineare Eschs. (Dermaptera: Forficulidae)

et al. 2013

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We performed laboratory experiments to study maternal care in Doru lineare Eschs. (Dermaptera: Forficulidae), a predator of the maize pest Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae). Females laid 29.7±8.43 (SD) eggs which took 7-10 days to hatch. Mothers searched for an appropriate nest, where they cleaned and defended eggs and nymphs. Females did not recognize eggs from other females as foreign and adopted them. Other evidence of maternal behavior was also observed, such as egg-cleaning, nest-cleaning, and a lower viability of eggs not cared for by females.

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Predation potency and intraguild interactions between generalist (Forficula auricularia) and specialist (Episyrphus balteatus) predators of the rosy apple aphid (Dysaphis plantaginea)

Cited by 46 publications

References 46 publications

The conceptual and practical implications of interpreting diet breadth mechanistically in generalist predatory insects

The conceptual and practical implications of interpreting diet breadth mechanistically in generalist predatory insects

Individual and combined effects of the generalist Forficula auricularia and the specialist Episyrphus balteatus on Dysaphis plantaginea – are two predators better than one?

Maternal Care by the Earwig Doru lineare Eschs. (Dermaptera: Forficulidae)

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