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Bioacoustics in Naturwissenschaften

To: Bioacoustics <>
Subject: Bioacoustics in Naturwissenschaften
From: Alan McElligott <>
Date: Tue, 24 Apr 2007 07:15:59 +0000 (GMT)
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Emanuel C. Mora  and Silvio Macías 
Echolocation calls of Poey’s flower bat (  Phyllonycteris poeyi  ) unlike those 
of other phyllostomids

Naturwissenschaften Volume 94, Number 5 / May, 380-383

       Abstract  Unlike any other foraging phyllostomid bat studied to date, 
Poey’s flower bats (Phyllonycteris poeyi-Phyllostomidae) emit relatively long 
(up to 7.2 ms), intense, single-harmonic echolocation calls. These calls are 
readily detectable at distances of at least 15 m. Furthermore, the echolocation 
calls contain only the first harmonic, which is usually filtered out in the 
vocal tract of phyllostomids. The foraging echolocation calls of P. poeyi are 
more like search-phase echolocation calls of sympatric aerial-feeding bats 
(Molossidae, Vespertilionidae, Mormoopidae). Intense, long, narrowband, 
single-harmonic echolocation calls focus acoustic energy maximizing range and 
favoring detection, which may be particularly important for cruising bats, like 
P. poeyi, when flying in the open. Flying in enclosed spaces, P. poeyi emit 
short, low-intensity, frequency-modulated, multiharmonic echolocation calls 
typical of other phyllostomids. This is the first report of a
 phyllostomid species emitting long, intense, single-harmonic echolocation 
calls with most energy in the first harmonic. 

       Keywords  Echolocation - Phyllostomidae - Whispering bat -           
Phyllonycteris poeyi                 


                                                              Emanuel C. Mora 
(Corresponding author)


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