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Parasitoids indicate major climate-induced shifts in arctic communities

Kankaanpaa, Tuomas and Vesterinen, Eero and Hardwick, Bess and Schmidt, Niels M. and Andersson, Tommi and Aspholm, Paul E. and Barrio, Isabel C. and Beckers, Niklas and Bety, Joel and Birkemoe, Tone and DeSiervo, Melissa and Drotos, Katherine H. and Ehrich, Dorothee and Gilg, Olivier and Gilg, Vladimir and Hein, Nils and Hoye, Toke T. and Jakobsen, Kristian M. and Jodouin, Camille and Jorna, Jesse and Kozlov, Mikhail and Kresse, Jean-Claude and Leandri-Breton, Don-Jean and Lecomte, Nicolas and Loonen, Maarten and Marr, Philipp and Monckton, Spencer K. and Olsen, Maia and Otis, Josee-Anne and Pyle, Michelle and Roos, Ruben E. and Raundrup, Katrine and Rozhkova, Daria and Sabard, Brigitte and Sokolov, Aleksandr and Sokolova, Natalia and Solecki, Anna M. and Urbanowicz, Christine and Villeneuve, Catherine and Vyguzova, Evgenya and Zverev, Vitali and Roslin, Tomas (2020). Parasitoids indicate major climate-induced shifts in arctic communities. Global Change Biology. 26 , 6276-6295
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Abstract

Climatic impacts are especially pronounced in the Arctic, which as a region is warming twice as fast as the rest of the globe. Here, we investigate how mean climatic conditions and rates of climatic change impact parasitoid insect communities in 16 localities across the Arctic. We focus on parasitoids in a widespread habitat,Dryasheathlands, and describe parasitoid community composition in terms of larval host use (i.e., parasitoid use of herbivorous Lepidoptera vs. pollinating Diptera) and functional groups differing in their closeness of host associations (koinobionts vs. idiobionts). Of the latter, we expect idiobionts-as being less fine-tuned to host development-to be generally less tolerant to cold temperatures, since they are confined to attacking hosts pupating and overwintering in relatively exposed locations. To further test our findings, we assess whether similar climatic variables are associated with host abundances in a 22 year time series from Northeast Greenland. We find sites which have experienced a temperature rise in summer while retaining cold winters to be dominated by parasitoids of Lepidoptera, with the reverse being true for the parasitoids of Diptera. The rate of summer temperature rise is further associated with higher levels of herbivory, suggesting higher availability of lepidopteran hosts and changes in ecosystem functioning. We also detect a matching signal over time, as higher summer temperatures, coupled with cold early winter soils, are related to high herbivory by lepidopteran larvae, and to declines in the abundance of dipteran pollinators. Collectively, our results suggest that in parts of the warming Arctic,Dryasis being simultaneously exposed to increased herbivory and reduced pollination. Our findings point to potential drastic and rapid consequences of climate change on multitrophic-level community structure and on ecosystem functioning and highlight the value of collaborative, systematic sampling effort.

Authors/Creators:Kankaanpaa, Tuomas and Vesterinen, Eero and Hardwick, Bess and Schmidt, Niels M. and Andersson, Tommi and Aspholm, Paul E. and Barrio, Isabel C. and Beckers, Niklas and Bety, Joel and Birkemoe, Tone and DeSiervo, Melissa and Drotos, Katherine H. and Ehrich, Dorothee and Gilg, Olivier and Gilg, Vladimir and Hein, Nils and Hoye, Toke T. and Jakobsen, Kristian M. and Jodouin, Camille and Jorna, Jesse and Kozlov, Mikhail and Kresse, Jean-Claude and Leandri-Breton, Don-Jean and Lecomte, Nicolas and Loonen, Maarten and Marr, Philipp and Monckton, Spencer K. and Olsen, Maia and Otis, Josee-Anne and Pyle, Michelle and Roos, Ruben E. and Raundrup, Katrine and Rozhkova, Daria and Sabard, Brigitte and Sokolov, Aleksandr and Sokolova, Natalia and Solecki, Anna M. and Urbanowicz, Christine and Villeneuve, Catherine and Vyguzova, Evgenya and Zverev, Vitali and Roslin, Tomas
Title:Parasitoids indicate major climate-induced shifts in arctic communities
Year of publishing :2020
Volume:26
Page range:6276-6295
Number of Pages:20
Publisher:WILEY
ISSN:1354-1013
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Arctic, climate change, DNA barcoding, Dryas, food webs, functional traits, host-parasitoid interactions, insect herbivory, pollinators
URN:NBN:urn:nbn:se:slu:epsilon-p-107865
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107865
Additional ID:
Type of IDID
DOI10.1111/gcb.15297
Web of Science (WoS)000567836800001
ID Code:18039
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:03 Nov 2020 11:03
Metadata Last Modified:03 Nov 2020 11:11

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