Distinct responses of antagonistic and mutualistic networks to agricultural intensification.

Ecology
Beth M L Morrison, Rodolfo Dirzo

Abstract

Species interaction networks, which govern the maintenance of biodiversity and ecosystem processes within ecological communities, are being rapidly altered by anthropogenic activities worldwide. Studies on the response of species interaction networks to anthropogenic disturbance have almost exclusively focused on one interaction type at a time, such as mutualistic or antagonistic interactions, making it challenging to decipher how networks of different interaction types respond to the same anthropogenic disturbance. Moreover, few studies have simultaneously focused on the two main components of network structure: network topology (i.e., architecture) and network ecology (i.e., species identities and interaction turnover), thereby limiting our understanding of the ecological drivers underlying changes in network topology in response to anthropogenic disturbance. Here, we used 16,400 plant-pollinator and plant-herbivore interaction observations from 16 sites along an agricultural intensification gradient to compare changes in network topology and ecology between mutualistic and antagonistic networks. We measured two aspects of network topology-nestedness and modularity-and found that although the mutualistic networks were consist...Continue Reading

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Citations

Mar 28, 2021·Current Opinion in Insect Science·Mayra C VidalKari A Segraves
Apr 19, 2021·Trends in Ecology & Evolution·Willem ProesmansAdam J Vanbergen
May 26, 2021·Trends in Parasitology·Kirsten E MillerDarren M Evans

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