Nature based solutions to promote pest regulation, pollination and related species diversity at landscape scale, in a Long-Term Socio-Ecological Research Site in south western France - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Conference Papers Year : 2023

Nature based solutions to promote pest regulation, pollination and related species diversity at landscape scale, in a Long-Term Socio-Ecological Research Site in south western France

Abstract

Societal demand for multifunctional agricultural landscapes keeps increasing. Nature based solutions (NBS) consider the benefits of biodiversity and green infrastructures to support multiple ecosystem services but also their positive impact on the associated biodiversity, not directly involved in the ES provision. Ecosystem services based on mobile organisms such as pest regulation and pollination should be considered at landscape scale. In this study we examined how landscape heterogeneity could promote pest regulation and pollination and related species diversity in 36 landscapes of the ZA PYGAR, a Long-Term Socio-Ecological Research site in South Western France. Pest regulation was evaluated by predation cards (dead aphids, seeds, lepidopteran eggs) and potential of pollination was based on strawberry phytometers. We show how the different components of landscape heterogeneity (composition, configuration) and practices at local scale influence the predation rate on cards, strawberry weight, as well as carabid, spider and wild bee diversities. Wild bees seemed to be more affected by landscape heterogeneity than local practices with no effect on pollination. The production mode and local farming practices had more effects on predators like carabids and spiders. The first results showed than Nature Based Solutions such as grasslands or hedgerows planting would rather support wild bees’ diversity with no effect on pollination service while extensification of local practices and greening of the landscapes would favour predators’ diversity and pest regulation.
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Dates and versions

hal-04216684 , version 1 (25-09-2023)

Identifiers

  • HAL Id : hal-04216684 , version 1

Cite

Annie Ouin, Émilie Andrieu, Aude Vialatte, Mélodie Ollivier, Justine Rivers-Moore. Nature based solutions to promote pest regulation, pollination and related species diversity at landscape scale, in a Long-Term Socio-Ecological Research Site in south western France. 11th IALE World Congress: Transboundary resource management, climate change and environmental resilience, Jul 2023, Nairobi, Kenya. ⟨hal-04216684⟩
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