The expansion of agriculture has shaped the recent evolutionary history of a specialized squash pollinator

Nathaniel S. Pope,Avehi Singh,Anna K. Childers,K. Kapheim,J. Evans,M. López-Uribe

Published 2023 in Proceedings of the National Academy of Sciences of the United States of America

ABSTRACT

Significance The conversion of natural to agricultural environments results in a dramatic modification of existing ecological conditions, and there are well-studied examples of crop pests that have rapidly evolved to fill novel agricultural niches. However, the degree to which agricultural intensification influences the evolution of wild insect pollinators is unknown, despite the importance of these mutualists to the global food supply and the persistence of plant populations. This study demonstrates that historical human agriculture in North America has had a profound impact on the recent evolutionary history of a wild, squash-specialized bee that is an essential pollinator of cucurbit crops. This provides a clear example of the role of agriculture as an evolutionary force acting on wild insect pollinators.

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