Discovery of Paratelenomus saccharalis (Dodd) (Hymenoptera: Platygastridae), an Egg Parasitoid of Megacopta cribraria F. (Hemiptera: Plataspidae) in its Expanded North American Range

Gardner, Wayne A.; Blount, J. L.; Golec, Julian R.; Jones, Walker A.; Hu, Xing Ping; Talamas, Elijah J.; Evans, Richard M.; Dong, Xiangli; Ray, Christopher; Buntin, G. David; Gerardo, Nicole M.; Couret, Jannelle

doi:10.18474/0749-8004-48.4.355

Cited by 41 publications

(28 citation statements)

References 3 publications

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“…This study represents a simulation of novel multitrophic interactions that may arise from the concurrent arrival of closely associated spe- (Gardner et al, 2013;Herlihy, Talamas, & Weber, 2016). As illustrated in Figure 6, our results reflect the complexity and diversity of the ecological mechanisms that mediate the effects of concurrent range expanding species on native interaction networks (see Engelkes & Mills, 2011;Harvey, Malcicka, & Ellers, 2015).…”

Section: Discussionmentioning

confidence: 76%

“…This study represents a simulation of novel multitrophic interactions that may arise from the concurrent arrival of closely associated species from different trophic levels into a new community. The simultaneous arrival of associated species is increasingly likely to occur in nature as a result of climate‐driven species expansions (Hickling et al., ), or multiple accidental introductions (Gardner et al., ; Herlihy, Talamas, & Weber, ). As illustrated in Figure , our results reflect the complexity and diversity of the ecological mechanisms that mediate the effects of concurrent range expanding species on native interaction networks (see Engelkes & Mills, ; Harvey, Malcicka, & Ellers, ).…”

Section: Discussionmentioning

confidence: 99%

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With or without you: Effects of the concurrent range expansion of an herbivore and its natural enemy on native species interactions

Carrasco

Desurmont

Laplanche

et al. 2017

Global Change Biology

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Global climatic changes may lead to the arrival of multiple range-expanding species from different trophic levels into new habitats, either simultaneously or in quick succession, potentially causing the introduction of manifold novel interactions into native food webs. Unraveling the complex biotic interactions between native and range-expanding species is critical to understand the impact of climate change on community ecology, but experimental evidence is lacking. In a series of laboratory experiments that simulated direct and indirect species interactions, we investigated the effects of the concurrent arrival of a range-expanding insect herbivore in Europe, Spodoptera littoralis, and its associated parasitoid Microplitis rufiventris, on the native herbivore Mamestra brassicae, and its associated parasitoid Microplitis mediator, when co-occurring on a native plant, Brassica rapa. Overall, direct interactions between the herbivores were beneficial for the exotic herbivore (higher pupal weight than the native herbivore), and negative for the native herbivore (higher mortality than the exotic herbivore). At the third trophic level, both parasitoids were unable to parasitize the herbivore they did not coexist with, but the presence of the exotic parasitoid still negatively affected the native herbivore (increased mortality) and the native parasitoid (decreased parasitism rate), through failed parasitism attempts and interference effects. Our results suggest different interaction scenarios depending on whether S. littoralis and its parasitoid arrive to the native tritrophic system separately or concurrently, as the negative effects associated with the presence of the parasitoid were dependent on the presence of the exotic herbivore. These findings illustrate the complexity and interconnectedness of multitrophic changes resulting from concurrent species arrival to new environments, and the need for integrating the ecological effects of such arrivals into the general theoretical framework of global invasion patterns driven by climatic change.

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Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

With or without you: Effects of the concurrent range expansion of an herbivore and its natural enemy on native species interactions

Carrasco

Desurmont

Laplanche

et al. 2017

Global Change Biology

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“…This would be a loss for platygastroid systematics, as now we have data indicating that generic limits and ovipositor systems were well formed, in some cases, more than 40 million years ago, and these data may inform current research programs on platygastroids that are of considerable economic importance,e.g. Paratelonomus (Gardner et al 2013) and Trissolcus (Talamas et al 2015). As in all taxonomic research, fossils are a work in progress, and we hope future contributors to the field will find this work useful.…”

Section: Discussionmentioning

confidence: 99%

Fossil Platygastroidea in the National Museum of Natural History, Smithsonian Institution

Talamas¹,

Buffington²

2015

JHR

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Platygastroid wasps preserved in Dominican amber and oil shale from the Kishenehn formation (Montana, USA) in the National Museum of Natural History are catalogued. Compression fossils in Kishenehn oil shale yield a specimen of Fidiobia, a specimen of Telenominae, and a specimen with a Scelio-type ovipositor system. Twenty-five described genera are documented from Dominican amber, all of which are known from the extant fauna: Allostemma Masner & Huggert, Aradophagus Ashmead, Calliscelio Ashmead, Calotelea Westwood, Duta Nixon, Embidobia Ashmead, Embioctonus Masner, Fidiobia Ashmead, Gryon Haliday, Idris Förster, Inostemma Haliday, Leptacis Förster, Leptoteleia Kieffer, Macroteleia Kieffer, Odontacolus Kieffer, Opisthacantha Ashmead, Parabaeus Kieffer, Paridris Kieffer, Platygaster Latreille, Plaumannion Masner & Johnson, Probaryconus Kieffer, Psilanteris Kieffer, Spiniteleia Masner, Telenomus Haliday, and Triteleia Kieffer. Fourteen of these genera do not have previously published fossil records and are here documented for the first time. Plaumannion fistulosum Talamas, sp. n., and Paridris yumai Talamas, sp. n. are described as new species. A phylogenetic analysis of Paridris including P. yumai is presented. A male specimen belonging to an undescribed scelionine genus is documented and illustrated, but not described, as the best features for circumscribing this taxon are found in the female, and monographic work on this group is currently underway by other workers. Four specimens from Baltic amber, belonging to Leptacis, Platygaster, and Sembilanocera Brues are presented for comparison to extant specimens and inclusions in Dominican amber.

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“…Understanding the nutritional requirements of parasitoids is important for maintaining an ecologically sound agricultural landscape, both for native parasitoids, such as T. podisi and any future importation biocontrol efforts involving natural enemies closely related to native parasitoids, such as Paratelenomus saccharalis Dodd, an egg parasitoid of an invasive soybean pest in the USA since 2009, Megacopta cribraria Fabricius (Gardner et al, 2013;Medal et al, 2015). The present study clearly indicates that certain honeydew resources that exist naturally in a parasitoid's habitat can be highly beneficial for enhancing parasitoid fitness.…”

Section: Discussionmentioning

confidence: 99%

Longevity and fecundity of the egg parasitoid Telenomus podisi provided with different carbohydrate diets

Lahiri

Orr

Cardoza

et al. 2017

Entomologia Exp Applicata

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In order for successful biological pest control using parasitoids, the most suitable naturally available food resources, as well as the fitness of parasitoids feeding on these resources, need to be ascertained. The goal of this study was to improve the understanding of the ecological requirements and consequent fitness of one such parasitoid, Telenomus podisi Ashmead (Hymenoptera: Platygastridae), a predominant stink bug (Heteroptera: Pentatomidae) egg parasitoid native to southeastern USA. We assessed the effects of carbohydrate resources readily available in the wasp's natural habitat on longevity and fecundity of female T. podisi under laboratory conditions. Carbohydrate diets included in the study were buckwheat, Fagopyrum esculentum Moench (Polygonaceae) nectar and honeydew from cowpea aphid, Aphis craccivora Koch (Hemiptera: Aphididae), compared with honey or water controls, which are normally used for laboratory rearing of this species. Eggs of Podisus maculiventris Say (Hemiptera: Pentatomidae) were provided as hosts for oviposition. Honeydew of cowpea aphid proved to be as good a nutrition source as buckwheat nectar, in enhancing wasp longevity and fecundity. We also assessed the importance of honeydew freshness on the biological attributes of T. podisi, as honeydew becomes crystallized or highly viscous on drying up and therefore may pose an issue for uptake by parasitoids. We found that fresh honeydew of the pea aphid, Acyrthosiphon pisum Harris (Hemiptera: Aphididae) significantly enhanced wasp longevity when compared to a diet of 1-day-old honeydew and the fava bean leaf (control). However, fresh honeydew of green peach aphid, Myzus persicae Sulzer (Hemiptera: Aphididae) had the same effect on wasp longevity, fecundity, and proportion of male progeny as radish leaf (control).

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Discovery of Paratelenomus saccharalis (Dodd) (Hymenoptera: Platygastridae), an Egg Parasitoid of Megacopta cribraria F. (Hemiptera: Plataspidae) in its Expanded North American Range

Cited by 41 publications

References 3 publications

With or without you: Effects of the concurrent range expansion of an herbivore and its natural enemy on native species interactions

With or without you: Effects of the concurrent range expansion of an herbivore and its natural enemy on native species interactions

Fossil Platygastroidea in the National Museum of Natural History, Smithsonian Institution

Longevity and fecundity of the egg parasitoid Telenomus podisi provided with different carbohydrate diets

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