Dynamics of plant-pollinator communities
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For over a decade, our lab has been studying plant–pollinator interactions at Elk Meadow, a subalpine meadow at CU’s Mountain Research Station. Each week, from the first flowers in early summer to the last blooms in the fall, we track which plants are flowering and which pollinators are visiting them. This long-term work has helped us understand which plant-pollinator interactions remain consistent over time, how these interactions “rewire” within the network, and how they change as the climate shifts. Our research shows that long-term, consistent observation and natural history are essential for understanding how ecological patterns and processes work—and how they are changing.
To learn more about this topic and our work at Elk Meadow, check out the paper below and this article I wrote in The Conversation: I’ve visited the same Rocky Mountain subalpine meadow weekly for a decade of summers looking at plant‑pollinator interactions – here’s what I learned
Relevant publications:
- Zoller L, Vázquez DP, and Resasco J (2026) Phenological shifts in plants and pollinators over a century disrupt interaction persistence. The American Naturalist. 207(1): 169-181.
- Manning I, Zoller L, and Resasco J (2025) Impacts of sampling effort on seasonal plant-pollinator interaction turnover over eight years. Oecologia. 207: 131.
- Barthell K and Resasco J (2025) Bumble bee niche overlap along an elevation gradient: how traits can inform novel competitive pressures under climate change. Oikos 2025: e10650.
- Peralta G, CaraDonna PJ, Rakosy D, Fründ J, Pascual Tudanca MP, Dormann CF, Burkle LA, Kaiser-Bunbury NC, Knight TM, Resasco J, Winfree R, Blüthgen N, Castillo WJ, and Vázquez DP (2024) Predicting plant-pollinator interactions: concepts, methods, and challenges. Trends in Ecology and Evolution 39(5): 494–505.
- Peralta G, Resasco J, Worthy S, Frost CM, Guevara AT, Manning I, Cagnolo L, and Burkle LA. (2024) Pollinator intraspecific body size variation and sociality influence their interactions with plants. Functional Ecology 38: 875–882.
- Resasco J, Chacoff NP, and Vázquez DP (2021) Plant-pollinator interactions between generalists persist over time and space. Ecology. 102: e03359.
- CaraDonna PJ, Burkle LA, Schwarz B, Resasco J, Knight T, Benadi G, Blüthgen N, Dormann CF, Fang Q, Fründ J, Gauzens B, Kaiser-Bunbury C, Winfree R, and Vázquez DP (2021) Seeing through the static: the temporal dimension of plant–animal mutualistic interactions. Ecology Letters 24: 149-161.
- Schwarz B, Vázquez DP, CaraDonna PJ, Knight TM, Benadi G, Dormann CF, Gauzens B, Motivans E, Resasco J, Blüthgen N, Burkle LA, Fang Q, Kaiser-Bunbury CN, Alarcón R, Bain JA, Chacoff NP, Huang S-Q, LeBuhn G, MacLeod M, Petanidou T, Rasmussen C, Simanonok MP, Thompson AH, and Fründ J (2020) Temporal scale-dependence of plant-pollinator networks. Oikos 129: 1271-1439.
- Chacoff NP, Resasco J, and Vázquez DP (2018) Interaction frequency, network position, and the temporal persistence of interactions in a plant-pollinator network. Ecology 99: 21-28.

