Nectar provisioning close to host patches increases parasitoid recruitment, retention and host parasitism

Jamont, Marie; Dubois-Pot, Charles; Jaloux, Bruno

doi:10.1016/j.baae.2014.01.001

Cited by 33 publications

(30 citation statements)

References 52 publications

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“…A key trait shared among the three Pseudacteon species investigated in the present study, as well as P. tricuspis studied previously , is their apparent ability to utilize sucrose with a significant increase in their lifespan, as is reported for a number of other flies in the family Phoridae (Disney, 1994) and hymenopteran parasitoids (Olson et al, 2000;Fadamiro & Heimpel, 2001;Lee & Heimpel, 2008;Jamont et al, 2014). Under the conditions of the present study, continuous provisioning of 20% or 40% sucrose solution increases longevity in the three species.…”

Section: Discussionsupporting

confidence: 77%

Comparing longevity of Pseudacteon species of different sizes: effect of sugar feeding

Ajayi

Fadamiro

2016

Physiol. Entomol.

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Sugar feeding is known to enhance lifespan in many parasitoid species. Several species of phorid flies in the genus Pseudacteon (Diptera: Phoridae) have been introduced in the Southern U.S.A. for the biological control of imported fire ants of Solenopsis species (Hymenoptera: Formicidae). Pseudacteon species are short‐lived flies and little is known about their nutritional ecology. Results from previous studies in our laboratory show that one of the introduced species, Pseudacteon tricuspis Borgmeier, is capable of feeding on sugar sources with a significant increase in lifespan. However, in Pseudacteon phorid flies, the degree to which sugar feeding can enhance the lifespan of other species is not clear, nor is it known whether there is a relationship between body size and longevity. In the present study, the effect of sugar feeding on the survival of three phorid fly species of different body sizes, Pseudacteon cultellatus Borgmeier, Pseudacteon curvatus Borgmeier and Pseudacteon obtusus Borgmeier, is investigated. For all three species, flies continuously provided with 40% or 20% sucrose solution live longer than individuals provided water only or 40% sucrose solution only on the first day of adult life. However, the degree to which sugar feeding enhanced longevity varies by species and is highest for P. obtusus. The data also indicate that longevity in Pseudacteon phorid flies is related to body size: the largest species (P. obtusus) lives significantly longer than the smaller species (P. cultellatus and P. curvatus). These results suggest that adults of all three Pseudacteon species are capable of feeding on sucrose solution and that sugar feeding can enhance their longevity. The significance of these results is discussed in relation to the field performance of Pseudacteon phorid flies as biological control agents of imported fire ants.

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Section: Discussionsupporting

confidence: 77%

Comparing longevity of Pseudacteon species of different sizes: effect of sugar feeding

Ajayi

Fadamiro

2016

Physiol. Entomol.

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“…floral nectar) may be located a considerable distance from suitable hosts (e.g. Tenhumberg et al, 2006;Vollhardt et al, 2010;Jamont et al, 2014). For aphid primary parasitoids and hyperparasitoids, the benefits of honeydew feeding are obvious, as it reduces the need to leave host patches to search for floral nectar.…”

Section: Discussionmentioning

confidence: 99%

Honeydew composition and its effect on life‐history parameters of hyperparasitoids

Neerbos

Boer

Salis

et al. 2019

Ecological Entomology

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1. Diets that maximise life span often differ from diets that maximise reproduction. Animals have therefore evolved advanced foraging strategies to acquire optimal nutrition and maximise their fitness. The free‐living adult females of parasitoid wasps (Hymenoptera) need to balance their search for hosts to reproduce and for carbohydrate resources to feed. 2. Honeydew, excreted by phloem‐feeding insects, presents a widely available carbohydrate source in nature that can benefit natural enemies of honeydew‐producing insects. However, the effects of variation in honeydew on organisms in the fourth trophic level, such as hyperparasitoids, are not yet understood. 3. This study examined how five different honeydew types influence longevity and fecundity of four hyperparasitoid taxa. Asaphes spp. (Pteromalidae) and Dendrocerus spp. (Megaspilidae) are secondary parasitoids of aphid parasitoids and are thus associated with honeydew‐producing insects. Gelis agilis and Acrolyta nens (both Ichneumonidae) are secondary parasitoids of species that do not use honeydew‐producing hosts. 4. Most honeydew types had a positive or neutral effect on life span and fecundity of hyperparasitoids compared with controls without honeydew, although negative effects were also found for both aphid hyperparasitoids. Honeydew produced by aphids feeding on sweet pepper plants was most beneficial for all hyperparasitoid taxa, which can partially be explained by the high amount of honeydew, but also by the composition of dietary sugars in these honeydew types. 5. The findings of this study underline the value of aphid honeydew as a carbohydrate resource for fourth‐trophic‐level organisms, not only those associated with honeydew‐producing insects but also ‘interlopers’ without such a natural association.

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“…Floral and extrafloral nectar, and honeydew excreted by homopteran insects, provide sugar-foraging wasps with rich sources of carbohydrates which generally increase longevity and subsequent rates of parasitism (Géneau et al, 2013;Irvin et al, 2007;Jamont et al, 2014;Lee et al, 2004;Lee and Heimpel, 2008a;Sivinski et al, 2006;Winkler et al, 2006;Wyckhuys et al, 2008). Theoretical and empirical evidence suggests that parasitoid food sources play an important role in regulation of host population dynamics (Heimpel and Jervis, 2005;Jervis et al, 1996;Sabelis et al, 2005).…”

Section: Introductionmentioning

confidence: 96%

Sugar concentration and timing of feeding affect feeding characteristics and survival of a parasitic wasp

Williams¹,

Deschodt

Pointurier

et al. 2015

Journal of Insect Physiology

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Nectar provisioning close to host patches increases parasitoid recruitment, retention and host parasitism

Cited by 33 publications

References 52 publications

Comparing longevity of Pseudacteon species of different sizes: effect of sugar feeding

Comparing longevity of Pseudacteon species of different sizes: effect of sugar feeding

Honeydew composition and its effect on life‐history parameters of hyperparasitoids

Sugar concentration and timing of feeding affect feeding characteristics and survival of a parasitic wasp

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