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BATS Magazine

VOLUME 11, NO. 4 Winter 1993


Motorola Supports Bat House Research Project
Hensley, Donna

BCI's North American Bat House Research Project is off to a good start. Nearly 800 Research Associates have signed up in 47 states in the United States, two provinces in Canada, and Belize and Trinidad. The project was initiated this spring as a result of a BCI study on bat house use [BATS, Spring 1993]. Designed to gather additional data on bat preferences in artificial roosts, the research project enlists the active participation of volunteers to make observations on their bat houses. Participants then return the information on a standardized report form to BCI for inclusion and analysis in an ongoing database.

In Austin, Texas, the project is receiving support from Motorola Corporation. Bob Jones, Head of Operations for Motorola's semiconductor plant in Austin, has initiated an on-going research partnership with BCI to test and improve bat house designs. During July, August, and September, 15 Motorola employees headed by Fred Blackman, Toni Lowe, Glen Schneider, and Gwen Turner, worked with Donna Hensley of BCI.

Together they built and tested BCI's new nursery house designs (as seen in the Spring 1993 issue of BATS) for adaption in southern climates. Investigating a variety of heat-sink and insulation materials, they monitored each bat house roosting chamber with different treatments and solar exposures throughout 24-hour cycles. After extensive tests of internal temperatures, the team modified two of the large nursery houses, attaching them back-to-back to enable heat exchange and greater thermal consistency. On September 9, these prototypes were hung 25 feet up on a metal pole on Steve and Marianne Sprinkel's organic farm near Austin. Finally, a single tin roof with a four-inch overhang was attached one inch above the wooden roofs to protect the houses from potentially excessive midday heat. When first checked for occupancy six days later, six cave myotis had moved in.

This winter, the Motorola team anticipates building and placing 14 additional pairs of the large nursery houses, three at Motorola headquarters, and the remainder at additional organic farms in the Austin area. Houses will be tested with further modifications and with different colored exteriors to provide a range of roost temperatures. Team spirits are high, and by the end of next summer, we should know a great deal more about how to accommodate bats in hot climates, thanks to the dedication of our friends at Motorola. Texas Governor Ann Richards has congratulated Motorola and BCI for their cooperative efforts in conservation.

If you haven't already joined North American Bat House Research Project, and are interested in becoming an active participant, write for information to North American Bat House Research Project: BCI, P.O. Box 162603, Austin, Texas 78716. Full details about this summer's research with Motorola and others can be found in the project newsletter, The Bat House Researcher, available to Research Associates.
--Donna Hensley



These back-to-back bat houses were occupied only six days after Motorola erected them on an organic farm in central Texas. A single tin roof placed over both protects them from excessive midday heat.
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All articles in this issue:
ON THE COVER
A New Beginning for an Old Mine
Bats 101: High School Students and Field Research
Tips on Establishing Research Partnerships Between Schools and Wildlife Agencies
Folklore and the Origin of Bats
Guam National Wildlife Refuge Under Fire
Motorola Supports Bat House Research Project
BCI Helps Protect Pennsylvania Mine for Bats
BCI-Sponsored Education Campaign in Mexico Leads to Cave Protection
Annual Report Available
WISH LIST. 1993
Look for "Masters of the Night: The True Story of Bats"
GET INVOLVED! MEMBER OPPORTUNITIES FOR 1994
Even vampires can be cute

Unless otherwise noted, all images are copyright ©Merlin D. Tuttle and/or ©Bat Conservation International