(full paper is archived in the Miller Library)
Title: Habitat, general behavior, nest building, and brooding in the littoral pseudoscorpion, Garypus californicus Banks (psuedoscorpionida-garypidae)
Student Author(s): Lum, Bryant J.
Faculty Advisor(s): Abbott, Donald
Location: Final Papers Biology 175H
Date: June 1982
Keywords: upper intertidal
Abstract: The general behavior of the supralittoral pseudoscorpion Garypus californicus was studied along the shoreline of Pacific Grove, California, where it is commonly found. Behavior, observed in the field and the lab, was analyzed and broken into components which were described and figured. The components were divided into solitary and social behaviors, which were further divided into more specific categories containing specific actions and postures. 116 encounters between adult organisms were analyzed and treated as sequences of behaviors. An "intruder" either randomly entered or was placed in the area of an initially stationary "host". Threatening gestures made by the two participants usually resulted in one organism leaving or a fight. In 101 cases the end result was the intruder leaving. Significant amounts of clustering behavior were found and correlate well with the initial posture of the host.