Modeling the status, trends, and impacts of wild bee abundance in the United States
2016
Ko, In-su | Lonsdorf, Eric V. | Williams, Neal M. | Brittain, Claire | Isaacs, Rufus | Gibbs, Jason | Ricketts, Taylor H.
Significance In 2014, a presidential memorandum called for an assessment of the nation’s pollinators, in response to growing awareness of their economic importance and recent declines. We assess, for the first time to our knowledge, the status and trends of wild bee abundance and their potential impacts on pollination services across the United States. We develop national maps of wild bee abundance, report land-use–driven changes over time, and relate them to trends in agricultural demand for pollination. We estimate uncertainty in the findings, so future research can target the least-understood regions and topics. Our findings can also help focus conservation efforts where declines in bee abundance are most certain, especially where agricultural demand for pollination services is growing.
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