ANTI-PREDATION STRATEGIES OF CHOCOLATE WATTLED BATS (C?ALINOLOBUS MORIO) AFTER A PREDATION EVENT AT A MATERNAL ROOST BY A SOUTHERN BOOBOOK (TYTO NOVAESEELANDIAE)

摘要

In this paper I report an observation of a southern boobook (Ninox novaeseelandiae) predation event on a maternal colony of chocolate wattled bats (Chalinolobus morio) and the response of the bats to the predation event. I use this observation as well as anecdotal and published observations to discuss anti-predation strategies used by bats and how predation risk influences roosting behaviour. These observations support the theory that clustering during roost emergence is an anti-predation strategy used by bats.