Response of bats to artificial lighting in churches.

<p>The figure shows the total number of bat passes (<i>n</i> = 4 sites) recorded each night in experimental lit zones inside churches during control (ambient light), deterrent (artificial light) and post-deterrent (ambient light) periods. P. pyg = soprano pipistrelle <i>Pipistrellus pygmaeus</i>; P. pip = common pipistrelle <i>P</i>. <i>pipistrellus</i>; Myotis = <i>Myotis nattereri</i>.