Avoidance of ladybird trails by an aphid parasitoid <i>Aphidius ervi</i>: active period and effects of prior oviposition experience

Nakashima, Yoshitaka; Senoo, Nozomu

doi:10.1046/j.1570-7458.2003.00094.x

Cited by 46 publications

(47 citation statements)

References 23 publications

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“…Just the potential for intraguild predation may deter other natural enemies. The parasitoid Aphidius ervi Haliday, for example, avoids searching in patches of aphids recently visited by C7 (Taylor et al 1998;Nakashima and Senoo 2003). Effects even more indirect can emerge from ladybird consumption of aphids.…”

Section: Effects On Biological Control Programsmentioning

confidence: 99%

Invasions by ladybugs, ladybirds, and other predatory beetles

2011

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Species of predatory Coleoptera have become abundant in new geographic regions recently, raising concerns for invaded ecosystems. We address this topic by focusing on invasive alien ladybird beetles (Coccinellidae; known also as ladybugs). Humans appear directly or indirectly responsible for all or most ladybird invasions. Factors hypothesized to have promoted ladybird invasions include genetic diversity (e.g., for polymorphism), phenotypic plasticity, adaptation and genetic shift, generalized diet and habitat preferences, flexible life history and reproduction, large body size, and release from enemies. Factors such as climate, habitat and prey availability, and biotic resistance may sometimes prevent or slow ladybird invasions. Indigenous species (e.g., herbivores) may suffer from invasions, and biological control programs may be affected. Species of indigenous ladybirds throughout the world are reported to have declined in abundance following ladybird invasions, with increased competition and/or intraguild predation most often hypothesized or inferred. Similar recent studies especially of ground beetles (Carabidae) also make clear the potential of invasive alien predatory Coleoptera to disrupt invaded natural and agricultural ecosystems.

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Section: Effects On Biological Control Programsmentioning

confidence: 99%

Invasions by ladybugs, ladybirds, and other predatory beetles

2011

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“…For instance, intraguild predation (IGP), trophic interactions between natural enemies sharing the same resource, may be common in agroecosystems and may influence the level of herbivore population suppression (Rosenheim et al, 1993Rosenheim, 1998;Raymond et al, 2000). Interactions between various combinations of intraguild natural enemies associated with aphids are known, such as IGP between parasitoids (Mackauer, 1990), between predators (Wheeler, 1977;Atim and Graham, 1984), between predators and parasitoids (Wheeler et al, 1968;Colfer and Rosenheim, 1995;Wells et al, 2001;Nakashima and Senoo, 2003;Nakashima et al, 2004) and between entomopathogens and parasitoids (Powell et al, 1986;Brooks, 1993). Thus, identifying the spatio-temporal patterns of each member of an aphidophagous guild is important to assess the functional role of the guild in controlling aphid abundance.…”

Section: Introductionmentioning

confidence: 99%

Temporal and within-plant distribution of the parasitoid and predator complexes associated with Acyrthosiphon pisum and A. kondoi (Homoptera: Aphididae) on alfalfa in Japan

Nakashima

Akashi

2005

Appl. Entomol. Zool.

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Seasonal abundance and within-plant distribution of Acyrthosiphon spp. and their natural enemies were investigated on alfalfa in Obihiro, Hokkaido, Japan in 2001. Densities of A. pisum and A. kondoi peaked in early June. Coccinellid and syrphid predators appeared to respond to aphid numbers and were synchronized with aphid populations. Two species of braconid (aphidiine) parasitoids (Aphidius ervi and Praon barbatum) were collected. Parasitism rates for each aphid species were variable through the season, but the estimated number of parasitized aphids reached a peak at the same time as overall aphid densities. After the first harvesting of alfalfa (14 June) aphid densities became very low, and coccinellid and syrphid predators were not found. In contrast to the coccinellid and syrphid predators, the heteropteran predators, Nabis stenoferus and Orius spp. became common during summer. Aphids, immature parasitoids (live parasitized aphids and mummies), Coccinella septempunctata and syrphids occurred more on the upper parts of alfalfa stems than on the lower parts, but this trend was not found for Hippodamia tredecimpunctata. The temporal and spatial distributions of members of the aphidphagous guild are likely to influence natural enemy-aphid relationships and intraguild interactions.

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“…26,27,44 It has been postulated that these behavioural modifications are related to the presence of chemical cues left by the IG predator and their detection by the IG prey. 21 -26 In these cases, the results are intuitive, as behavioural modifications leading to avoidance of IGP (e.g. reducing residence time and foraging time in threatening situations) should be adaptive for the IG prey.…”

Section: No-choice Bioassaymentioning

confidence: 99%

“…19 However, IG prey species have been encountered that are able to avoid IGP through behavioural changes in response to the presence of the IG predator. 19,21 For example, some studies have demonstrated that some IG prey can modify their behaviour and stop foraging on patches with IGP risk. 21 -26 Thus, the behaviour of the parasitoid (IG prey) in evading IGP can play a crucial role in the survival and efficacy of all of the species involved, 27 with possible consequences for pest biological control.…”

Section: Introductionmentioning

confidence: 99%

“…19,21 For example, some studies have demonstrated that some IG prey can modify their behaviour and stop foraging on patches with IGP risk. 21 -26 Thus, the behaviour of the parasitoid (IG prey) in evading IGP can play a crucial role in the survival and efficacy of all of the species involved, 27 with possible consequences for pest biological control. 28 B. tabaci is a polyphagous pest species.…”

Section: Introductionmentioning

confidence: 99%

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Foraging behaviour of the parasitoid Eretmocerus eremicus under intraguild predation risk by Macrolophus pygmaeus

Velasco-Hernández

Ramírez-Romero

Sánchez-Hernández

et al. 2014

Pest Management Science

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BACKGROUND: Intraguild predation (IGP), predation between species that use a common resource, can affect the populations of a pest, of the pest's natural enemy (IG prey) and of the predator of the pest's natural enemy (IG predator). In this study, we determined whether the parasitoid Eretmocerus eremicus (Hymenoptera: Aphelinidae) (IG prey), modifies its foraging behaviour under the risk of IGP by Macrolophus pygmaeus (Hemiptera: Miridae) (IG predator). Parasitoid behaviour was analysed using two bioassays (choice and no-choice) with the following treatments: (i) control, tomato leaf infested with whitefly nymphs; and (ii) PEP, tomato leaf infested with whitefly nymphs and previously exposed to the IG predator; and (iii) PP, tomato leaf infested with whitefly nymphs, with both, the IG predator and the IG prey present. RESULTS:In both bioassays, we found that E. eremicus did not significantly modify the number of ovipositions, time of residence, duration of oviposition or behavioural sequence. However, in the no-choice bioassay, the number of attacks was higher and their duration shorter in the PEP treatment than in the control. CONCLUSION: Our results indicate that the parasitoid may detect IGP risk to a certain extent, but it did not significantly modify its foraging behaviour, suggesting that simultaneous release of the two natural enemies can be successfully employed.

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Avoidance of ladybird trails by an aphid parasitoid Aphidius ervi: active period and effects of prior oviposition experience

Cited by 46 publications

References 23 publications

Invasions by ladybugs, ladybirds, and other predatory beetles

Invasions by ladybugs, ladybirds, and other predatory beetles

Temporal and within-plant distribution of the parasitoid and predator complexes associated with Acyrthosiphon pisum and A. kondoi (Homoptera: Aphididae) on alfalfa in Japan

Foraging behaviour of the parasitoid Eretmocerus eremicus under intraguild predation risk by Macrolophus pygmaeus

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