Direct and indirect effects of landscape and field management intensity on carabids through trophic resources and weeds

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F22%3A10174962" target="_blank" >RIV/00027006:_____/22:10174962 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41330/21:85738

Result on the web

<a href="https://besjournals.onlinelibrary.wiley.com/toc/13652664/2022/59/1" target="_blank" >https://besjournals.onlinelibrary.wiley.com/toc/13652664/2022/59/1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1365-2664.14043" target="_blank" >10.1111/1365-2664.14043</a>

Result language

angličtina

Original language name

Direct and indirect effects of landscape and field management intensity on carabids through trophic resources and weeds

Original language description

Carabids are important biological control agents of weeds and other pests in agricultural fields. The carabid community is built upon direct and indirect ecological effects of landscape complexity, field management intensity and biotic components that in interaction make any prediction of community size and composition challenging. We analyse a large-scale sample of 60 European cereal fields using structural equation modelling to quantify the direct effects of field management intensity and the surrounding landscape, and their indirect effect via biotic components, on carabid diversity. Our results highlight that direct and indirect effects of increasing landscape complexity, mediated by trophic resources, mainly affect carabids positively. Field management intensity only ever affects carabids through indirect effects that are generally negative, by suppressing standing weeds and weed seeds. Indirect effects on granivore carabid species depended on weed seed availability, whereas omnivores depended on the availability of both weed seeds and animal prey. Synthesis and applications. A consideration of both the direct and indirect effects of landscape and field management is necessary for predicting carabid communities. These indirect effects, mediated via trophic resources, supports the diversity and abundance of carabid communities and their provision of ecosystem services. Our results show that promoting crop diversity and connectivity to semi-natural habitats will directly enhance carabid communities in farmland by manipulating their migration from source habitats and indirectly by promoting the presence and diversity of their trophic resources. A reduction in field management intensity will preserve local standing weeds and weed seeds, and indirectly support carabid communities. These local and landscape modifications could contribute to improve the natural regulation of pests and weeds by carabids.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF APPLIED ECOLOGY

ISSN

0021-8901

e-ISSN

—

Volume of the periodical

59

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

176-187

UT code for WoS article

000705539900001

EID of the result in the Scopus database

2-s2.0-85116554489