Ambient noise causes independent changes in distinct spectro-temporal features of echolocation calls in horseshoe bats

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Ambient noise causes independent changes in distinct spectro-temporal features of echolocation calls in horseshoe bats.

One of the most efficient mechanisms to optimize signal-to-noise ratios is the Lombard effect - an involuntary rise in call amplitude due to ambient noise. It is often accompanied by changes in the spectro-temporal composition of calls. We examined the effects of broadband-filtered noise on the spectro-temporal composition of horseshoe bat echolocation calls, which consist of a constant-frequen...

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ژورنال

عنوان ژورنال: Journal of Experimental Biology

سال: 2014

ISSN: 1477-9145,0022-0949

DOI: 10.1242/jeb.102855