The Avoidance of Stationary and Moving Obstacles by Little Brown Bats, Myotis lucifugus
Echolocating bats sense their environments by emitting ultrasonic signals and listening to the echoes. The simplest way to measure this ability is by the obstacle-avoidance test in which a bat flies through an array of stationary wires and the numbers of hits and misses are recorded. By extending this test and making their bats fly between both stationary and moving obstacles, Jen and McCarty (1978) reported that bets avoid moving objects more successfully than stationary ones. Using the same experimental method and more bats, we report here more quantitative data on the sensitivity of the echolocation system of bats.
KeywordsEarly Summer Early Fall Wooden Panel Stationary Obstacle Nylon Monofilament
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