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The resilience of weed seedbank regulation by carabid beetles, at continental scales, to alternative prey

Carbonne, Benjamin and Petit, Sandrine and Neidel, Veronika and Foffova, Hana and Daouti, Eirini and Frei, Britta and Skuhrovec, Jiri and Rezac, Milan and Saska, Pavel and Wallinger, Corinna and Traugott, Michael and Bohan, David A. (2020). The resilience of weed seedbank regulation by carabid beetles, at continental scales, to alternative prey. Scientific Reports. 10 , 19315
[Research article]

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Abstract

Carabids are generalist predators that contribute to the agricultural ecosystem service of seedbank regulation via weed seed predation. To facilitate adoption of this ecosystem services by farmers, knowledge of weed seed predation and the resilience of seedbank regulation with co-varying availability of alternative prey is crucial. Using assessments of the seedbank and predation on seed cards in 57 cereal fields across Europe, we demonstrate a regulatory effect on the soil seedbank, at a continental scale, by groups formed of omnivore, seed-eating (granivore+omnivore) and all species of carabids just prior to the crop-harvest. Regulation was associated with a positive relationship between the activity-density of carabids and seed predation, as measured on seed cards. We found that per capita seed consumption on the cards co-varied negatively with the biomass of alternative prey, i.e. Aphididae, Collembola and total alternative prey biomass. Our results underline the importance of weed seedbank regulation by carabids, across geographically significant scales, and indicate that the effectiveness of this biocontrol may depend on the availability of alternative prey that disrupt the weed seed predation.

Authors/Creators:Carbonne, Benjamin and Petit, Sandrine and Neidel, Veronika and Foffova, Hana and Daouti, Eirini and Frei, Britta and Skuhrovec, Jiri and Rezac, Milan and Saska, Pavel and Wallinger, Corinna and Traugott, Michael and Bohan, David A.
Title:The resilience of weed seedbank regulation by carabid beetles, at continental scales, to alternative prey
Series Name/Journal:Scientific Reports
Year of publishing :2020
Volume:10
Article number:19315
Number of Pages:14
Publisher:NATURE RESEARCH
ISSN:2045-2322
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 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
URN:NBN:urn:nbn:se:slu:epsilon-p-109986
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109986
Additional ID:
Type of IDID
DOI10.1038/s41598-020-76305-w
Web of Science (WoS)000594627400004
ID Code:21282
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:19 Jan 2021 14:23
Metadata Last Modified:19 Jan 2021 14:31

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