Aquatic and terrestrial insect activity phenology with trap collections at the Andrews Experimental Forest, 2009-2014

  • Creator(s): Sherri L. Johnson, Judith L. Li
  • PI(s): Sherri L. Johnson
  • Originator(s): Judith L. Li
  • Other researcher(s): William J. Gerth
  • Dates of data preparation: Apr 9 2009 - Jul 2 2014
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • DOI:
  • Last update: Oct 21 2016 (Version 4)
<Citation>     <Acknowledgement>     <Disclaimer>    
Johnson, S.; Li, J. 2016. Aquatic and terrestrial insect activity phenology with trap collections at the Andrews Experimental Forest, 2009-2014. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2023-12-09.
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.
This study was designed to evaluate the influence of microclimatic heterogeneity, associated with complex terrain, on phenology and to evaluate potential trophic responses to scenarios of climate change, disturbance and land use. We focus on a simplified model trophic system involving vascular plants, terrestrial and aquatic insects, and migratory neotropical and resident birds. The model trophic system is interesting because the phenologies of different components in the model system are independent (cued by various abiotic drivers) and dependent (due to trophic interactions), potentially leading to complex system behaviors. Plant and poiklothermic animal (ex. invertebrates) phenologies are highly temperature dependent. Phenologies of terrestrial plants and invertebrates would therefore likely exhibit wide spatial and temporal variation across the landscape in response to temperature variation associated with elevational differences, cold air drainages patterns, and temperature inversions. Aquatic invertebrate phenologies are also tied to temperature, but stream temperatures are influenced by different factors than those driving air temperatures and they may be less sensitive to complex terrain. For the invertebrate part of this study, we are examining spring-time (April through June) flying (terrestrial and adult aquatic) insect activity and adult aquatic insect emergence across a range of sites in the HJ Andrews Experimental Forest. Flying insect activity will be assessed using malaise traps deployed at 16 sites ranging from 450m to over 1300m in elevation, and with a variety of forest stand ages and slope aspects. Emerging aquatic insects will be collected with emergence traps in six 1st to 2nd order streams ranging from 450m to 1000m in elevation, and differing in water source (spring vs run-off) and surrounding forest age. Insects from malaise traps will be identified to varying levels from order to genus, depending on the group and available keys. Adult aquatic insects will be identified to varying levels from subfamily to species. We will be monitoring overall activity levels and emergence rates over time as well as the activity/emergence of selected key taxa. Data collection began in 2009 and is ongoing.

Study Description Study Site Map Taxonomic Hierarchy Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
1Malaise Trap data (May 5 2009 - Jul 2 2014)METADATADATA
2Aquatic Insect Emergence data (Apr 9 2009 - Jun 30 2014)METADATADATA
3Beetle Trap data (May 3 2012 - Jul 2 2014)METADATADATA
4Aquatic Insect Emergence Genus data (Apr 5 2011 - Jul 8 2011)METADATADATA

 Stream temperature at core phenology stream sites in the Andrews Experimental Forest, 2009 - 2014 (HT006)
 Headwater Stream Macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon, 2003-2004 (SA022)
 Vegetative Phenology observations at the Andrews Experimental Forest, 2009 - Present (TV075)
 Forest-wide bird survey at 183 sample sites the Andrews Experimental Forest from 2009 to present (SA024)
 Air temperature at core phenology sites and additional bird monitoring sites in the Andrews Experimental Forest, 2009 to present (MS045)