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Licensed Unlicensed Requires Authentication Published by De Gruyter February 11, 2020

Echolocation calls of some bats of Gujarat, India

  • Tariq Ahmed Shah and Chelmala Srinivasulu ORCID logo EMAIL logo
From the journal Mammalia


Bats play an important role by providing ecosystem services including pollination, seed dispersal, forest regeneration and insect pest control and also serve as bio-indicators. In the present study, we present an acoustic guide to the calls of nine species of bats from Gujarat belonging to families Rhinopomatidae (Rhinopoma hardwickii, Rhinopoma microphyllum), Emballonuridae (Taphozous melanopogon, Taphozous longimanus and Taphozous nudiventris), Rhinolophidaea (Rhinolophus lepidus), Hipposideridae (Hipposideros galeritus) and Vespertilionidae (Scotophilus heathii, Pipistrellus ceylonicus). Discriminant function analysis was used to classify the bat calls to the species level using leave-one-out cross validation. Analysis was carried out separately for constant frequency (CF) calls and frequency-modulated (FM) calls. Bats echolocating with CF calls were classified with 100% success, while in the case of FM calls, the calls were classified with 66.7% accuracy. In species-rich communities, care should be taken while using echolocation calls to identify bats producing FM calls. More such call libraries of bats from other parts of India are needed for non-invasive documentation of chiropteran fauna in different biogeographic zones.


The authors are thankful to PCCF Gujarat State Forest Department, DCFs and ASI Vadodara Circle for permission to carry out the surveys. We are also indebted to the field staff of the Forest Department for logistics in the field. We thank Dr. Ranjit Singh Devkar, Rakesh Singh Joon, Bhupinder Kumar, Ayush Oak, Rutvi Joshi, Forum Munshi, Kartik Upadya, Pranav Wagasiya, Suthar Akshit, Krishna Mishra, and Elvis for help during the surveys. We thank Wildlife Acoustics and Dr. Bhargavi for loaning the bat detector for the present study as well as reading the draft and giving necessary inputs. We also thank Mr. Deepak Tarun for helping out with a distribution map. TAS thanks the Council for Scientific and Industrial Research, New Delhi, for financial support (CSIR-SRF F. No. 09/132 (0861)/2016- EMR-I, 2017). CS acknowledges the support from DSA-I (SAP-II) Programme in Zoology and the Head, Department of Zoology, Osmania University, for the facilities.


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Received: 2019-02-17
Accepted: 2019-11-21
Published Online: 2020-02-11
Published in Print: 2020-09-25

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