caa a22 4500 378895508 CHVBK 20180305123505.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.1515/mamm.2004.030 doi (NATIONALLICENCE)gruyter-10.1515/mamm.2004.030 Variability in echolocation call design of 26 Swiss bat species: consequences, limits and options for automated field identification with a synergetic pattern recognition approach [Elektronische Daten] [Martin K. Obrist, Ruedi Boesch, Peter F. Flückiger] Pattern recognition algorithms offer a promising approach to recognizing bat species by their echolocation calls. Automated systems like synergetic classifiers may contribute significantly to operator-independent species identification in the field. However, it necessitates the assembling of an appropriate database of reference calls, a task far from trivial. We present data on species specific flexibility in call parameters of all Swiss bat species (except Nyctalus lasiopterus and Plecotus alpinus). The selection of "training-calls" for the classifier is crucial for species identification success. We discuss this in the context of echolocation call variability differing between species and its consequences for the implementation of an automated, species specific bat activity monitoring system. Copyright 2004, Walter de Gruyter Echolocation nationallicence pattern recognition nationallicence Chiroptera nationallicence monitoring nationallicence Switzerland nationallicence Obrist Martin K. 1. Swiss Federal Research Institute WSL, Research Department Landscape CH-8903 Birmensdorf (Switzerland) aut Boesch Ruedi 2. Swiss Federal Research Institute WSL, Research Department Landscape CH-8903 Birmensdorf (Switzerland) aut Flückiger Peter F. 3. Bat Protection Kt SO. c/o Museum of Natural History Olten, Kirchgasse 10, CH-4600 Olten (Switzerland) aut Mammalia Walter de Gruyter 68/4(2004-12-01), 307-322 0025-1461 68:4<307 2004 68 mamm https://doi.org/10.1515/mamm.2004.030 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/mamm.2004.030 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Obrist Martin K. 1. Swiss Federal Research Institute WSL, Research Department Landscape CH-8903 Birmensdorf (Switzerland) aut NATIONALLICENCE 700 1- Boesch Ruedi 2. Swiss Federal Research Institute WSL, Research Department Landscape CH-8903 Birmensdorf (Switzerland) aut NATIONALLICENCE 700 1- Flückiger Peter F. 3. Bat Protection Kt SO. c/o Museum of Natural History Olten, Kirchgasse 10, CH-4600 Olten (Switzerland) aut NATIONALLICENCE 773 0- Mammalia Walter de Gruyter 68/4(2004-12-01), 307-322 0025-1461 68:4<307 2004 68 mamm CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter