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An ecological networks approach reveals restored native vegetation benefits wild bees in agroecosystems
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  • Kate Borchardt,
  • Claus Kadelka,
  • Lisa Schulte,
  • Amy Toth
Kate Borchardt
Iowa State University

Corresponding Author:[email protected]

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Claus Kadelka
Iowa State University
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Lisa Schulte
Iowa State University
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Amy Toth
Iowa State University
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Abstract

1. Conservation of species that rely on mutualistic partners such as pollinators may be better studied using interaction networks and indicators of ecological functions. 2. We used a novel systems-ecology approach using network analysis and bee morphology indicators to investigate ecological structure and bee body condition in the context of a conservation practice known as prairie strips established within row-crop fields compared to unrestored field margins. 3. We found the increased flower resources in prairie strips produced a nested network supporting higher bee richness and a greater chance for bee-mediated plant pollination. 4. Some, but not all, bee groups showed improved body condition at prairie strip sites with variation due to taxonomic group, foraging preferences, and body size. 5. This study supports a growing body of literature on the utility of network analysis in more broadly assessing the effect of conservation practices on ecological communities.