Bioacoustics, Ecoacoustics, Ecology Address: Università di Pavia, Dipartimento di Scienze della Terra e dell'Ambiente
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Via Taramelli 24, 27100 Pavia, Italy
Acoustic features of Red Deer (Cervus elaphus) stags vocalizations in the Cansiglio Forest (NE It... more Acoustic features of Red Deer (Cervus elaphus) stags vocalizations in the Cansiglio Forest (NE Italy, 2001-2002) During the rut in the years 2001-2002 in the Cansiglio Forest (NE Italy), more then 1300 vocalizations of red deer stags were recorded and analyzed. The acoustic analysis showed an evident spectrographic and temporal heterogeneity, so that we could classify them in 11 different classes. In particular, for the analyzed population, we found a clear distinction between three principal temporal classes, so we described the acoustic repertoire of the stags population during the considered rutting seasons.
Studies of animal bioacoustics require equipment to record and analyze sounds and sometimes to pl... more Studies of animal bioacoustics require equipment to record and analyze sounds and sometimes to play back recorded sounds. Choosing the right equipment can be a difficult task for the novice bioacoustician. In this chapter, we outline the components that make up a typical recording or playback setup, define some of the commonly used terminology for describing the instruments, and present some illustrative studies that required the use of specific types of equipment. We cover instruments used in both terrestrial and aquatic bioacoustic studies. The ensuing discussions will introduce the reader to some of the commonly used microphones, hydrophones, amplifiers, analog-to-digital converters, projectors (loudspeakers), as well as programmable autonomous recording systems. Where applicable, we also discuss some of the pros and cons to be considered when choosing a particular product for a study, and the limitations that specific equipment may pose to the planned research. We also present e...
I cetacei sfruttano il suono come strumento di comunicazione e di visione subacquea, ma ora si tr... more I cetacei sfruttano il suono come strumento di comunicazione e di visione subacquea, ma ora si trovano ad affrontare un ambiente alterato dall'inquinamento acustico dovuto ad attivita umane. L’implementazione della direttiva sulla marine strategy e stata l’occasione per raccogliere i dati acustici presenti in Italia, nonche per definire le criticita esistenti. Sono qui presentati i risultati del progetto Gionha per la ricostruzione modellistica del rumore sottomarino nell’alto tirreno e gli osservatori sottomarini multidisciplinari realizzati nel mar Ionio. Essi hanno permesso lo studio dei cetacei e la misura del rumore di fondo, sia diffuso che causato da singole navi in transito. ------ Cetaceans use sound as a tool of communication and underwater vision, but now they face an environment altered by noise pollution due to human activities. The implementation of Marine Strategy Framework Directive, has offered the opportunity of collecting acoustic data present in Italy, as wel...
ISBN: 979-10-90821-02-6 We acknowledge CNRS MASTODONS MI for its support to SABIOD.ORG project wh... more ISBN: 979-10-90821-02-6 We acknowledge CNRS MASTODONS MI for its support to SABIOD.ORG project which co-organized this workshop. We thank J. Sueur and F. Jiguet from MNHN Paris who co-organized the bird classification challenge. We thank ADEME and Biotope who support Dufour's PhD grant who participated to the organisation. These proceedings were compiled by A. Mishchenko, Toulon university- UTLN- LSIS
INTRODUCTION C.I.B.R.A. is a research group whose main interest is in the study of underwater sou... more INTRODUCTION C.I.B.R.A. is a research group whose main interest is in the study of underwater sounds related to marine mammals and in the development of acoustic detection and analysis technologies. The "acoustic " aspect in wide area studies, critical habitat identification and population distribution has become more and more popular. According to our experience it is a difficult task to integrate, in one scheme, acoustic evidences with other data sets like remote sensing or seasonal fluctuations models, and scientists often fail to
Acoustic sequences are commonly observed in many animal taxa. The vast vocal repertoire of common... more Acoustic sequences are commonly observed in many animal taxa. The vast vocal repertoire of common bottlenose dolphins (Tursiops truncatus) also includes sequences of multi-unit rhythmic signals called bray-call which are still poorly documented, both functionally and geographically. This study aimed to (1) describe, classify, and characterize series of bray-call recorded in two sites of the Mediterranean basin (Rome—Tyrrhenian Sea and Mazara del Vallo—Strait of Sicily) and (2) investigate for the existence of possible geographic differences. The acoustic analysis identified 13 different sequence types, only two detected in both study areas. The Sørensen–Dice index revealed a low degree of similarity between the sequence repertoire of the two common bottlenose dolphin sub-populations, with the Tyrrhenian being more diversified and complex than the Sicilian one. The acoustic parameters also showed variability between the study area. Different variants of the main acoustic elements com...
The Eurasian griffon vulture (Gyps fulvus) represents an exception among the European accipitrids... more The Eurasian griffon vulture (Gyps fulvus) represents an exception among the European accipitrids, as it forms highly populated colonies. Although it has been the subject of many studies, social in...
Acoustic features of Red Deer (Cervus elaphus) stags vocalizations in the Cansiglio Forest (NE It... more Acoustic features of Red Deer (Cervus elaphus) stags vocalizations in the Cansiglio Forest (NE Italy, 2001-2002) During the rut in the years 2001-2002 in the Cansiglio Forest (NE Italy), more then 1300 vocalizations of red deer stags were recorded and analyzed. The acoustic analysis showed an evident spectrographic and temporal heterogeneity, so that we could classify them in 11 different classes. In particular, for the analyzed population, we found a clear distinction between three principal temporal classes, so we described the acoustic repertoire of the stags population during the considered rutting seasons.
Studies of animal bioacoustics require equipment to record and analyze sounds and sometimes to pl... more Studies of animal bioacoustics require equipment to record and analyze sounds and sometimes to play back recorded sounds. Choosing the right equipment can be a difficult task for the novice bioacoustician. In this chapter, we outline the components that make up a typical recording or playback setup, define some of the commonly used terminology for describing the instruments, and present some illustrative studies that required the use of specific types of equipment. We cover instruments used in both terrestrial and aquatic bioacoustic studies. The ensuing discussions will introduce the reader to some of the commonly used microphones, hydrophones, amplifiers, analog-to-digital converters, projectors (loudspeakers), as well as programmable autonomous recording systems. Where applicable, we also discuss some of the pros and cons to be considered when choosing a particular product for a study, and the limitations that specific equipment may pose to the planned research. We also present e...
I cetacei sfruttano il suono come strumento di comunicazione e di visione subacquea, ma ora si tr... more I cetacei sfruttano il suono come strumento di comunicazione e di visione subacquea, ma ora si trovano ad affrontare un ambiente alterato dall'inquinamento acustico dovuto ad attivita umane. L’implementazione della direttiva sulla marine strategy e stata l’occasione per raccogliere i dati acustici presenti in Italia, nonche per definire le criticita esistenti. Sono qui presentati i risultati del progetto Gionha per la ricostruzione modellistica del rumore sottomarino nell’alto tirreno e gli osservatori sottomarini multidisciplinari realizzati nel mar Ionio. Essi hanno permesso lo studio dei cetacei e la misura del rumore di fondo, sia diffuso che causato da singole navi in transito. ------ Cetaceans use sound as a tool of communication and underwater vision, but now they face an environment altered by noise pollution due to human activities. The implementation of Marine Strategy Framework Directive, has offered the opportunity of collecting acoustic data present in Italy, as wel...
ISBN: 979-10-90821-02-6 We acknowledge CNRS MASTODONS MI for its support to SABIOD.ORG project wh... more ISBN: 979-10-90821-02-6 We acknowledge CNRS MASTODONS MI for its support to SABIOD.ORG project which co-organized this workshop. We thank J. Sueur and F. Jiguet from MNHN Paris who co-organized the bird classification challenge. We thank ADEME and Biotope who support Dufour's PhD grant who participated to the organisation. These proceedings were compiled by A. Mishchenko, Toulon university- UTLN- LSIS
INTRODUCTION C.I.B.R.A. is a research group whose main interest is in the study of underwater sou... more INTRODUCTION C.I.B.R.A. is a research group whose main interest is in the study of underwater sounds related to marine mammals and in the development of acoustic detection and analysis technologies. The "acoustic " aspect in wide area studies, critical habitat identification and population distribution has become more and more popular. According to our experience it is a difficult task to integrate, in one scheme, acoustic evidences with other data sets like remote sensing or seasonal fluctuations models, and scientists often fail to
Acoustic sequences are commonly observed in many animal taxa. The vast vocal repertoire of common... more Acoustic sequences are commonly observed in many animal taxa. The vast vocal repertoire of common bottlenose dolphins (Tursiops truncatus) also includes sequences of multi-unit rhythmic signals called bray-call which are still poorly documented, both functionally and geographically. This study aimed to (1) describe, classify, and characterize series of bray-call recorded in two sites of the Mediterranean basin (Rome—Tyrrhenian Sea and Mazara del Vallo—Strait of Sicily) and (2) investigate for the existence of possible geographic differences. The acoustic analysis identified 13 different sequence types, only two detected in both study areas. The Sørensen–Dice index revealed a low degree of similarity between the sequence repertoire of the two common bottlenose dolphin sub-populations, with the Tyrrhenian being more diversified and complex than the Sicilian one. The acoustic parameters also showed variability between the study area. Different variants of the main acoustic elements com...
The Eurasian griffon vulture (Gyps fulvus) represents an exception among the European accipitrids... more The Eurasian griffon vulture (Gyps fulvus) represents an exception among the European accipitrids, as it forms highly populated colonies. Although it has been the subject of many studies, social in...
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