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Differential responses of body growth to artificial warming between parasitoids and hosts and the consequences for plant seed damage
Stockholm University, Faculty of Science, Department of Zoology.
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Number of Authors: 6
2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, 15472Article in journal (Refereed) Published
Abstract [en]

Temperature increase may disrupt trophic interactions by differentially changing body growth of the species involved. In this study, we tested whether the response of body growth to artificial warming (similar to 2.2 degrees C) of a solitary koinobiont endo-parasitoid wasp (Pteromalus albipennis, Hymenoptera: Pteromalidae) differed from its main host tephritid fly (Tephritis femoralis, Diptera: Tephritidae; pre-dispersal seed predator), and whether the plant seed damage caused by wasp-parasitized and unparasitized maggots (larval flies) were altered by warming. In contrast to the significant and season-dependent effects of warming on body growth of the host tephritid fly reported in one of our previous studies, the effect of artificial warming on body growth was non-significant on the studied wasp. Moreover, the warming effect on seed damage due to unparasitized maggots was significant and varied with season, but the damage by parasitized maggots was not altered by warming. Distinct responses of body growth to warming between parasitoids studied here and hosts assessed in a previous study indicate that temperature increase may differentially affect life history traits of animals along food chains, which is likely to affect trophic interactions.

Place, publisher, year, edition, pages
2017. Vol. 7, 15472
Keyword [en]
Phenology
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Other Natural Sciences Biological Sciences
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URN: urn:nbn:se:su:diva-149813DOI: 10.1038/s41598-017-15453-yISI: 000415023200033PubMedID: 29133829OAI: oai:DiVA.org:su-149813DiVA: diva2:1167065
Available from: 2017-12-18 Created: 2017-12-18 Last updated: 2017-12-18Bibliographically approved

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