Chemically Mediated Intraguild Predator Avoidance by Aphid Parasitoids: Interspecific Variability in Sensitivity to Semiochemical Trails of Ladybird Predators

Nakashima, Yoshitaka; Birkett, Michael A.; Pye, B. J.; Powell, W.

doi:10.1007/s10886-006-9123-y

Cited by 49 publications

(36 citation statements)

References 22 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…to C7 trails was stronger than to those of A. bipunctata. It was found that the hydrocarbons n-pentacosane and n-heptacosane occur in significantly greater amounts in C7 trails compared to A. bipunctata (Nakashima et al, 2006). This response may preserve food resources for both C7 adults and their offspring and disperse aphid parasitism more widely among aphid patches.…”

Section: Relation To Aphid Parasitoidsmentioning

confidence: 96%

Why is Coccinella septempunctata so successful? (A point-of-view)

Hodek¹,

Michaud²

2008

Eur. J. Entomol.

120

View full text Add to dashboard Cite

Abstract. Factors were examined that could be responsible for the predominance of Coccinella septempunctata (C7) in most habitats of the Palaearctic and for its successful invasion of the Nearctic Region. C7 is euryphagous, but less polyphagous than Harmonia axyridis or Coleomegilla maculata in that it cannot develop or reproduce on non-aphid food. The intraguild status of C7 is intermediate. Although adult size is large, preimaginal stages are palatable to those of H. axyridis and Adalia bipunctata, whereas it is not an intraguild predator of these species. Although these traits appear to be neutral or negative, many aspects of population plasticity are advantageous for C7, often acting in concert with a bet-hedging strategy. Given its high mobility and eurytopy, the inhibition of oviposition in the presence of conspecific larval trails represents an adaptive advantage that favors increased egg dispersal and lowers the risk of offspring mortality due to cannibalism. The ability to temporarily suspend oviposition, combined with heterogenous voltinism and diapause tendencies, enable a portion of C7 populations to feed and reproduce on unpredictably occurring aphid populations. An absence of reproductive diapause in males and pre-hibernation mating are other significant adaptations, along with the tendency to produce offspring in excess of the carrying capacity of local food resources. We suggest that one explanation for the broad geographic success of C7 resides in an ecological plasticity that is based on both genetic and phenotypic polymorphisms.

show abstract

Section: Relation To Aphid Parasitoidsmentioning

confidence: 96%

Why is Coccinella septempunctata so successful? (A point-of-view)

Hodek¹,

Michaud²

2008

Eur. J. Entomol.

120

View full text Add to dashboard Cite

show abstract

“…To enhance their fitness, for instance, females of insects tend to choose an oviposition site that provides suitable food as well as reduced risk of predation, as achieved by avoiding patches containing potential predators (e.g., Sadeghi and Gilbert, 2000a, b;Blaustein et al, 2004). These relationships have been studied mainly in several taxonomic groups of phytophagous insects (e.g., Yamaga and Ohgushi, 1999;Mira and Bernays, 2002;Singer et al, 2004), and predatory insects as well (e.g., Doumbia et al, 1998;Nakashima et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Oviposition preference of two hoverfly species in response to risk of intraguild predation

Putra

Yasuda

Sato

2009

Appl. Entomol. Zool.

View full text Add to dashboard Cite

Two experiments were performed in the laboratory to understand the relationships between oviposition preference and larval performance of the two predatory hoverfly species, Episyrphus balteatus de Geer and Metasyrphus corollae Fabricius. We first conducted laboratory experiments to understand the nature and relative strengths of intraguild predation between the larvae of three ladybird species, Harmonia axyridis Pallas, Propylea japonica Thunberg, and Scymnus posticalis Sicard, and two predatory hoverfly species. The interactions between larvae of the three ladybird and two hoverfly species differed depending on the species and developmental stages involved: the relationships between H. axyridis or S. posticalis and the two hoverfly larvae tended to be asymmetric with H. axyridis being a superior species and S. posticalis an inferior species, although the reverse was true for each of these two species when small larvae were paired with large larvae of the hoverflies. The ladybird, P. japonica, had both asymmetric and symmetric relationships depending on the hoverfly species with which it interacted. Secondly, we tested the preference and performance hypothesis for hoverflies, by determining whether hoverfly oviposition preference was related to the risk of intraguild predation posed by the presence of a ladybird larva in an aphid colony. Oviposition preference in relation to larval performance of the two hoverflies differed between the species: E. balteatus females tended to adjust their rate of eggs laying in response to the presence of ladybird larvae, while similar responses of M. corollae females were weak. The relationship between oviposition preference and larval performance in hoverflies is discussed.

show abstract

“…In contrast, Taylor et al (1998) reported that A. ervi spend less time in a patch containing predatory Coccinella septempunctata L. than in predator-free host patches. It appears that some aphid parasitoids avoid foraging on plant parts that were visited earlier by IG predatory coccinellids (Nakashima et al 2006). …”

Section: Introductionmentioning

confidence: 99%

The importance of intraguild interactions to the combined effect of a parasitoid and a predator on aphid population suppression

Bilu

Coll

2007

BioControl

View full text Add to dashboard Cite

Intraguild predation (IGP) occurs when consumers competing for a resource also engage in predatory interactions. A common type of IGP involves aphid predators and parasitoids: since parasitoid offspring develop within aphid hosts, they are particularly vulnerable to predation by aphid predators such as coccinellid beetles. Other intraguild interactions that include non-lethal behavioral effects, such as interference with foraging and avoidance of IGP, may also hamper parasitoid activity and reduce their effectiveness as biological control agents. In this study, we quantified mortality in and behavioral effects on Aphidius colemani Viereck (Hymenoptera: Aphidiidae) by its IG-predator Coccinella undecimpunctata L. (Coleoptera: Coccinellidae), and compared the impact of two release ratios of these natural enemies on aphid populations.Parasitoids did not leave the plant onto which they were first introduced, regardless of the presence of predators, even when alternative prey was offered on predator-free plants nearby. In 2-hour experiments, predator larvae interfered with wasp activity, and the level of aphid parasitism was lower in the presence of predators than in their absence. In these experiments, the parasitoids contributed more to aphid mortality than the predators and aphid suppression was higher when a parasitoid acted alone than in combination with a predator larva. These results were confirmed in a 5-day experiment, but only at one parasitoid:predator release ratio (4:3) not another (2:3). The over-all impact on aphid population growth was non-the-less stronger when both enemies acted together than when only one of them was present. Results indicate that for given release ratios and time scale, the negative lethal and non-lethal effects of the predator on parasitoid performance did not fully cancelled the direct impact of the predator on the aphid population.

show abstract

Chemically Mediated Intraguild Predator Avoidance by Aphid Parasitoids: Interspecific Variability in Sensitivity to Semiochemical Trails of Ladybird Predators

Cited by 49 publications

References 22 publications

Why is Coccinella septempunctata so successful? (A point-of-view)

Why is Coccinella septempunctata so successful? (A point-of-view)

Oviposition preference of two hoverfly species in response to risk of intraguild predation

The importance of intraguild interactions to the combined effect of a parasitoid and a predator on aphid population suppression

Contact Info

Product

Resources

About