Acoustic analysis of some characteristics of red deer roaring
| Autor: | Emanuela Tullo, Maria Paola Ponzetta, Carmen Trunfio, Davide Gardoni, Sara Ferrari, Marcella Guarino |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Italian Journal of Animal Science, Vol 14, Iss 3 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1594-4077 1828-051X |
| DOI: | 10.4081/ijas.2015.3773 |
| Popis: | Different strategies have been adopted to track and monitor red deer (Cervus elaphus) populations according to different habitats and ecosystems. The population census techniques usually carried out are time consuming and involve lot of manpower. A method that relies on individual animal signs like acoustic indices could be useful to support the wildlife management, since vocalisations can encode and transmit a variety of biologically significant information. The present study considered 460 roars recorded from 14 adult deers, from five to eight years old. Recordings were performed in five different locations of northern-central Italy. The acoustic spectrum of each roar was analysed in order to extract its main features, namely: the fundamental frequency (F0), the peak frequency (PF), the sound length (SL) and 24 frequency bins of 174.3 Hz, representing the sound distribution between 50 and 4233.2 Hz (F1 to F24). Statistical analyses showed that individuality and age of animals were significant on F0 (P0.90; P |
| Databáze: | Directory of Open Access Journals |
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