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NALDC Record Details:

European Earwig, Forficula auricularia L. (Dermaptera: Forficulidae), at the Hanford Reach National Monument, Washington State

Permanent URL:
http://handle.nal.usda.gov/10113/47793
File:
Download [PDF File]
Abstract:
The European earwig, Forficula auricularia L., was surveyed using pitfall traps at 3 sites at the Hanford Reach National Monument in south central Washington State. Pitfall traps were collected weekly from April 2002 through April 2003. The earwig was consistently taken during all months of the year at a disturbed, weedy site along the Columbia River (White Bluffs Ferry site) but was rare or not collected in 2 less-disturbed shrubsteppe habitats. Highest numbers occurred during April––May, when immatures accounted for the majority of the catch; immatures reached the adult stage during mid-July, and the species is univoltine at the site. Possible reasons why earwigs have not colonized the monument's shrubsteppe habitat include the arid climate with lack of available moisture, especially for breeding purposes, and a lack of burrow sites.
Author(s):
Zack Richard S. , Strenge Dennis , Landolt Peter J. , Looney Chris
Source:
Western North American naturalist 2011 1 v.70 no.4
Language:
English
Publisher:
Brigham Young University
Year:
2011
Collection:
Journal Articles, USDA Authors, Peer-Reviewed