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Dryad

Data from: Landscape complexity promotes resilience of biological pest control to climate change

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May 01, 2021 version files 73 KB

Abstract

Increased climate variability as a result of anthropogenic climate change can threaten the functioning of ecosystem services. However, diverse responses to climate change among species (response diversity) can provide ecosystems with resilience to this growing threat. Measuring and managing response diversity and resilience to global change are key ecological challenges. Here, we develop a novel index of climate resilience of ecosystem services, exemplified by calculating the thermal resilience of predator communities providing biological pest control. Field assays revealed substantial differences in temperature-dependent activity of predator species. Based on this information, our index revealed higher thermal resilience in predator communities of high response diversity and functional evenness (equity in service provisioning). Predator assemblages with higher thermal resilience provided more stable pest control in microcosms where temperature was experimentally varied, confirming that the index of thermal resilience developed here is linked to predator function. Importantly, complex landscapes containing a high number of non-crop habitat patches were more likely to contain predator communities with high thermal resilience. Thus, the conservation and restoration of non-crop habitats in agricultural landscapes – practices known to strengthen natural pest suppression under current conditions – will also confer resilience in ecosystem service provisioning within a changing climate.