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Integrative Assessment of Indiana bat Response to Anthropogenic Stimuli


Copperhead Consulting participated in a project initiated by the Engineer Research Development Center, Construction Engineering Research Laboratory (ERDC-CERL) of the U.S. Army Corps of Engineers designed to investigate the behavioral, physiological, and immunological responses of tree-roosting bats (including the federally endangered Indiana bat) to selected disturbance stimuli, e.g., military-generated and human presence noise, near day roosts in experimental (Fort Knox, KY) and control (Taylorsville, KY) environments.

The project methodology involved the capture of bats in mist nets and the fitting of selected bats with temperature sensitive radiotransmitters. Bats were then tracked to diurnal roosts and the relative ambient noise was measured with analog sound equipment. The vocal response to noise stimuli was also recorded with Patterson ultrasonic bat detectors in an effort to measure the relative activity of bats in response to noise in experimental and control populations. Guano and blood was also collected from selected bats in an effort to measure the relative amount of stress hormones produced in the two study groups.

This project utilized the following services:
Bat Survey