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Terrestrial invertebrate abundance in the Elwha River estuary, Washington, in 2007 and 2013.


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Foley, M.M., Shafroth, P.B., Beirne, M.M., Paradis, R., Ritchie, A.C., and Duda, J.J., 2020, Ecological parameters in the Elwha River estuary before and during dam removal (ver. 2.0, August 2020): U.S. Geological Survey data release,


This portion of the data release presents terrestrial invertebrate abundance data from samples collected in emergent and shrub vegetation along the edge of the Elwha River estuary, Washington, in 2007 and 2013 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). We deployed terrestrial insect fallout traps at ten locations in the east estuary, five replicates each in shrub and emergent (littoral) vegetation habitats. Clear, rectangular traps (2,400 cm2 in 2007 and 3,526 cm2 in 2013) were filled with 5 cm of filtered soapy water and deployed for 72 hours. Invertebrate counts from 2013 were standardized to the 2007 bin size to account for the different [...]


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Elwha_estuary_terrestrial_invertebrates_2007-2013.csv 6.18 KB


Data were obtained to assess the change in terrestrial invertebrate abundance and diversity in the Elwha estuary following the removal of two dams on the Elwha River between 2011 and 2014. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.



  • Pacific Coastal and Marine Science Center



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