Hummingbird foraging patterns across alpine meadows with RFID-equipped feeders in the HJ Andrews Experimental Forest, 2014-2017

  • Creator(s): Sarah J. K. Frey, Dustin Gannon, Matthew G Betts
  • PI(s): Matthew G Betts
  • Originator(s): Sarah J. K. Frey
  • Other researcher(s): Dustin Gannon, Adam Scott Hadley
  • Dates of data collection: Jul 11 2014 - Jul 25 2017
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • DOI:
  • Access constraint: Please cite this public dataset upon use.
  • Last update: Jul 30 2021 (Version 2)
<Citation>     <Acknowledgement>     <Disclaimer>    
Frey, S.; Gannon, D.; Betts, M. 2021. Hummingbird foraging patterns across alpine meadows with RFID-equipped feeders in the HJ Andrews Experimental Forest, 2014-2017. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2023-12-11.
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.
Landscape changes can alter pollinator movement and foraging patterns which can in turn influence demographic processes of plant populations. In the Cascade Mountains of the Pacific Northwest, USA, forests are encroaching on alpine meadows that harbor diverse plant and pollinator communities. Whether encroachment and isolation of sub-meadows will influence pollinator foraging behaviors is unknown. To help assess those behaviors, subcutaneous Passive Integrated Transponders were implanted into 163 Rufous Hummingbirds (Selasphorus rufus), common avian pollinators in western North America and four arrays of five hummingbird feeders were established equipped with Radio Frequency Identification data loggers to passively relocate individuals at points throughout the landscape. The feeder arrays were established on four peaks along Frizzel Ridge in the H. J. Andrews Experimental Forest (Lookout Mountain, M1, M2, and Carpenter Mountain). A center feeder was established in a large, central alpine meadow and four satellite feeders c.a. 250m from the center. The satellite feeders were positioned such that at least one was in the open and connected to the center feeder by open habitat, one was in the open but separated from the center by coniferous forest canopy, and one was placed under coniferous forest canopy. Feeders were maintained for 1.5-12 weeks per year from 2014-2017.

Study Description Study Site Map Taxonomic Hierarchy Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
1Relocation data for Hummingbirds implanted with passive integrated transponders (RFID reads) (Jul 11 2014 - Jul 25 2017)METADATADATA
2Locations and characteristics of each hummingbird feeder equipped with radio-frequency identification data loggers (Jul 11 2014 - Jul 25 2017)METADATADATA
3Hummingbirds capture data for birds implanted with passive integrated transponders, including standard banding data (Jul 11 2014 - Jul 25 2017)METADATADATA
4Raster of forested and non-forested areas along Frizzel Ridge METADATADATA
geoTIFF with embedded metadata

 Western columbine genetics across HJ Andrews Experimental Forest meadow communities (SA029)

 Gannon, Dustin G., Hadley, Adam S., Frey, Sarah J.K. 2021, Pairing automated mark–recapture and social network models to explore the effects of landscape configuration on hummingbird foraging patterns (Pub. No: 5192)