[PCA] ARTICLE: Pollination biology and ecology of Willamette Valley prairies and rare plant species

[Krone, Elizabeth C]

Pollination biology and ecology of Willamette Valley prairies and rare plant species, March 2024

Link: https://appliedeco.org/wp-content/uploads/Mitchell_IAE_Willamette-Valley-Prairie-Pollinator-2023-Report.pdf

Mitchell, J.C., T. Kaye, and S. Harris. 2024. Pollination biology of Willamette Valley prairies and rare plant species. Institute for Applied Ecology. Corvallis, Oregon.

Summary

Global losses in biodiversity highlight the diverse, and often dependent connections between species. The conservation of endangered plants must also consider management of associated plant and arthropod communities, including pollinators. To better understand the role of pollinator communities for the conservation of rare plants, we conducted a 5-year study of Willamette daisy (Erigeron decumbens, Asteraceae), a perennial forb endemic to the Willamette Valley, Oregon, and listed as endangered under the U.S. Endangered Species Act. Between 2019 and 2023, the Institute for Applied Ecology (IAE) partnered with the US Army Corps of Engineers (USACE) and the Bureau of Land Management (BLM) to better understand Willamette daisy pollination biology and Willamette Valley pollinator ecology. We conducted pollen supplementation experiments between 2019 and 2022 to determine the effect of pollinators on Willamette daisy seed set, and corresponding field observations to understand the role of insect pollinators and other flowering prairie plants on Willamette daisy population growth and survival.

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