Table S1. Bat species found in the West Wyalong region, New South Wales: echolocation characteristics, presence recorded at the Cowal Gold Mine tailings dam and freshwater farm dam during monthly surveys from April 2006 to May 2012. Species distributions from Churchill (2008) and on advice from M. Pennay (Australasian Bat Society Inc.). Echolocation call characteristics and frequency range (AnalookW characteristic frequency) from Pennay et al. (2004).

Species / Echolocation characteristics / Frequency range (kHz) / Recorded at tailings dam / Recorded at farm dam
Vespertilionidae
Gould’s wattled bat (Chalinolobus gouldii) / Calls often overlap with Mormopterus spp., but readily distinguishable when showing alternating frequency / 25–34 / ü / ü
chocolate wattled bat (Chalinolobus morio) / Calls curve downward with a down-sweeping tail / 46–53 / ü / ü
little pied bat
(Chalinolobus picatus) / Curved calls, distinctive alternating frequency, non-alternating calls can overlap with S. greyii / 38–43 / ü / ü
lesser long-eared bat, Gould’s long-eared bat, south-eastern long-eared bat (Nyctophilus geoffroyi/gouldi/corbeni) / Short duration broadband (near vertical) calls, which can be confused with attack-phase calls from other species / 30–80 / ü / ü
inland broad-nosed bat (Scotorepens balstoni) / Down-sweeping tail, similar to C. gouldii’s calls, but no alternating pulse / 28–34 / ü / ü
little broad-nosed bat
(Scotorepens greyii) / Curved calls, tail sometimes absent but usually up sweeping. Calls often overlap with C. picatus / 35–40 / ü / ü
inland forest bat, large forest bat, southern forest bat, little forest bat (Vespadelus baverstocki/darlingtoni/
regulus/vulturnus) / Curved calls, tail sometimes absent but usually up-sweeping / 38–53 / ü / ü
Molossidae
eastern free-tailed bat, inland free-tailed bat, south-eastern free-tailed bat (Mormopterus sp2/sp3/sp4) / Similar to C. gouldii, but no alternating pulse, calls generally flatter at low frequency / 26–36 / ü / ü
white-striped free-tailed bat
(Tadarida australis) / Very distinctive low frequency calls, typically flat or slightly curvilinear / 10–15 / ü / ü
Emballonuridae
yellow-bellied sheath-tailed bat (Saccolaimus flaviventris) / Flat or curved calls similar to T. australis, but frequency higher / 17–20 / ü