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Interactive effects of climate and land-use gradients on the abundance of arthropod functional groups and trait syndromes in agroecosystems
  • Jessica Guezen,
  • Madhur Anand
Jessica Guezen
University of Guelph

Corresponding Author:[email protected]

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Madhur Anand
University of Guelph
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Abstract

Land-use changes and climatic changes are two entwined stressors on ecosystems and studies on such interactions often focus on species-level or region-specific responses. Here we examine the influence of land-use and climate gradients on the abundance of functional groups and trait syndromes (based on diet breadth, habitat breadth, and dispersal mode) in arthropod communities within European agroecosystems. Using a previously compiled data set along with additional climatic data, we found that both climate and land-use gradients significantly influenced the abundance of pollinator and pest functional groups; examining trait syndromes with functional groups, only diet and habitat specialists were influenced by interactive effects of climate and land-use, but not generalists. Increasing semi-natural habitat in landscapes appeared to mitigate some of the negative effects of increasing temperature and precipitation on certain arthropods. We conclude that functional approaches examining impacts of qualitatively different stressors can help inform future conservation actions or mitigation efforts.