Plant Pollinator data at HJ Andrews Experimental Forest, 2011 to 2021

  • Creator(s): Eugene Seo, Julia A. Jones, Rebecca A. Hutchinson, Vera Wilder Pfeiffer
  • PI(s): Julia A. Jones
  • Originator(s): Vera Wilder Pfeiffer
  • Other researcher(s): Andrew R. Moldenke, Rebecca A. Hutchinson, Eugene Seo, Thomas G. Dietterich, Matthew G Betts, Melinda Vickers
  • Dates of data collection: Jun 1 2011 - Jul 21 2021
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • DOI:
  • Last update: Aug 5 2022 (Version 8)
<Citation>     <Acknowledgement>     <Disclaimer>    
Seo, E.; Jones, J.; Hutchinson, R.; Pfeiffer, V. 2022. Plant Pollinator data at HJ Andrews Experimental Forest, 2011 to 2021. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2024-06-15.
Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
Despite the importance of plant-pollinator interactions for ecological communities, few long-term observational studies have been conducted of plant-pollinator networks. This study involves the annual collection of plant-pollinator interaction data from up to 18 meadows in the Willamette National Forest, Oregon, including 12 meadows in the HJ Andrews Forest. This study addresses how meadow size, the amount of nearby meadow habitat, weather, degree days, and soil moisture are related to the flowering of meadow plants and the frequency of plant-pollinator interactions.

Study Description Study Site Map Taxonomic Hierarchy Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
1Plant-pollinator interactions (Jun 1 2011 - Jul 21 2021)METADATADATA
Plant-pollinator interaction data from 15 minute plot watches in montane meadows
2Flowering plant surveys (Jun 1 2011 - Jul 21 2021)METADATADATA
Flowering plant surveys from plant-pollinator interaction plots

 Proposed standard protocol for flower surveys (2015) - Brief description of the proposed standardized protocol for flower surveys for the EISI plant-pollinator project
 An Analysis of Long-term Data Consistency and a Proposal to Standardize Flower Survey Methods for the EISI Pollinator Project - unpublished paper from summer 2015 EISI group
 Flower survey data sheet - PDF file used for flower survey
 Interactions data sheet - PDF file used for interactions data collection

 Vickers, Melinda 2022, Climate Variability and Plant-Pollinator Networks in the Cascade Range, Oregon (Pub. No: 5234)
 Jones, Julia A., Hutchinson, Rebecca, Moldenke, Andy, Pfeiffer, Vera, Helderop, Edward, Thomas, Elaina, Griffin, Josh, Reinholtz, Amanda 2018, Landscape patterns and diversity of meadow plants and flower-visitors in a mountain landscape (Pub. No: 5075)
 Young, Anna 2016, The Effect of Climate Change on Pollinators and the Implications for Global Agriculture: A Case Study in the H.J. Andrews Experimental Forest, Oregon. (Pub. No: 4945)
 Helderop, Edward 2015, Diversity, Generalization, and Specialization in Plant-Pollinator Networks of Montane Meadows, Western Cascades, Oregon (Pub. No: 4913)
 Kumaran, Sneha Krishna 2015, Identifying a Ranking of Plant Preferences for a Pollinator (Pub. No: 5233)
 Pfeiffer, Vera W. 2012, Influence of Spatial and Temporal Factors on Plants, Pollinators and Plant-pollinator Interactions in Montane Meadows of the Western Cascades Range (Pub. No: 4766)
 Highland, Steven A. 2011, The historic and contemporary ecology of western Cascade Meadows: archeology, vegetation, and macromoth ecology (Pub. No: 4704)
 Rice, Janine M. 2009, Forest-meadow dynamics in the central western Oregon Cascades: topographic, biotic, and environmental change effects (Pub. No: 4619)
 Dailey, Michele Meadows 2007, Meadow classification in the Willamette National Forest and conifer encroachment patterns in the Chucksney-Grasshopper Meadow Complex, western Cascade Range, Oregon (Pub. No: 4357)
 Khattar, Gabriel, Peres-Neto, Pedro R. 2024, The Geography of Metacommunities: Landscape Characteristics Drive Geographic Variation in the Assembly Process through Selecting Species Pool Attributes (Pub. No: 5340)
 Fu, Xiao, Seo, Eugene, Clarke, Justin, Hutchinson, Rebecca A. 2019, Link Prediction Under Imperfect Detection: Collaborative Filtering for Ecological Networks (Pub. No: 5164)
 Seo, Eugene, Hutchinson, Rebecca A. 2018, Predicting Links in Plant-Pollinator Interaction Networks Using Latent Factor Models with Implicit Feedback (Pub. No: 5084)
 Rice, Janine. M., Halpern, Charles. B., Antos, Joseph. A., Jones, Julia. A. 2012, Spatio-temporal patterns of tree establishment are indicative of biotic interactions during early invasion of a montane meadow (Pub. No: 4710)
 Takaoka, Sadao, Swanson, Frederick J. 2008, Change in extent of meadows and shrub fields in the central western Cascade Range, Oregon (Pub. No: 3847)
 Miller, Eric A., Halpern, Charles B. 1998, Effects of environment and grazing disturbance on tree establishment in meadows of the central Cascade Range, Oregon, USA (Pub. No: 2325)