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Member Symposium

Applications of Species Occupancy Models to Insect Population Research and Monitoring

Harnessing community science to estimate native bumble bee distributions and monitor occupancy trends

Tuesday, November 11, 2025
2:20 PM - 2:40 PM Pacific
Location: Oregon Convention Center, F149, OCC
Oral Presentation
Pollinator decline is a global conservation concern due to the importance of pollinators not only in our agricultural systems but also our natural ecosystems. However, despite their role in these crucial processes, fundamental information on the distribution and population status of many invertebrate pollinators is missing. The Pacific Northwest Bumble Bee Atlas is a multi-state, cross-agency effort to better understand the distribution and community composition of native bumble bee species in Washington, Oregon, and Idaho. Coordinating partners across state agencies, non-profits, and community scientists, we conducted a broad-scale survey of the Pacific Northwest to better understand our native bumble bee species communities. Using hierarchical multispecies occupancy models that incorporate species-specific range information, we can generate maps of predicted occupancy across the Pacific Northwest, provide guidance on how best to survey bumble bee communities, and identify clusters of species that may provide insights into the population status of some of our species of greatest conservation need. This information is not only crucial for planning conservation initiatives in the Pacific Northwest but for implementing long-term sentinel site monitoring here and across the United States.