Results 91 to 100 of about 20,302 (308)
Rock solid: winter ecology of boreal bats at natural hibernation sites
Wildlife Biology, EarlyView.Overwintering bats at northerly latitudes spend up to eight months a year in a state of dormancy: a period characterised by extended use of torpor, but not an absolute lack of activity. Although this period constitutes a majority of their yearly cycle, little is known about their ecology during this time, because of the cryptic behaviour of bats ...
Anna S. Blomberg +2 more
wiley +1 more source
An overview of fish bioacoustics and the impacts of anthropogenic sounds on fishes
Journal of Fish Biology, 2019 Fishes use a variety of sensory systems to learn about their environments and to communicate. Of the various senses, hearing plays a particularly important role for fishes in providing information, often from great distances, from all around these ...
A. Popper, A. Hawkins
semanticscholar +1 more source
Wildlife Society Bulletin, EarlyView.We compared 2 audio analysis methods: 1) manual spectral analysis, and 2) automated mel‐frequency cepstral coefficients (MFCCs), to identify great gray owls (Strix nebulosa) to individual using territorial calls. The MFCC method was 97.6% accurate at classifying individuals whereas spectral analysis had only a 77.2% accuracy rate.
Julia S. Polasik +2 more
wiley +1 more source
The ultrasonic nonlinearity parameter for biological media
Archives of Acoustics, 2015 The nonlinearity parameter B/A of several soft tissues was measured using two independent methods. The B/A values of most soft tissues were found to be between 7 and 8, with the exception of fat which has a B/A value close to 11.
F. DUNN, W. K. LAW, L. A. FRIZZELL
doaj
Vocal usage learning and vocal comprehension learning in harbor seals
BMC NeuroscienceBackground Which mammals show vocal learning abilities, e.g., can learn new sounds, or learn to use sounds in new contexts? Vocal usage and comprehension learning are submodules of vocal learning.
Diandra Duengen +2 more
doaj +1 more source
Automatic Classification and Speaker Identification of African Elephant (\u3cem\u3eLoxodonta africana\u3c/em\u3e) Vocalizations [PDF]
, 2005 A hidden Markov model (HMM) system is presented for automatically classifying African elephant vocalizations. The development of the system is motivated by successful models from human speech analysis and recognition.
Clemins, Patrick J. +3 more
core +1 more source
Ultrasonic songs and stridulum anatomy of Asiophlugis crystal predatory katydids (Tettigonioidea: Meconematinae: Phlugidini) [PDF]
, 2020 The behavioural ecology of ultrasonic-singing katydids is not well understood, and the general bioacoustics, barely known for a few Neotropical Meconematinae, tends to be overlooked for species from Southeast Asia.
Belabut, D +6 more
core
IMPROVED MULTIPLE BIRDSONG TRACKING WITH DISTRIBUTION DERIVATIVE METHOD AND MARKOV RENEWAL PROCESS CLUSTERING [PDF]
, 2013 DS & MP are supported by an EPSRC Leadership Fellowship EP/G007144 ...
Bonada, J +4 more
core +2 more sources
Shifting Syllable Production in an Ex Situ Population of a Critically Endangered Songbird
Zoo Biology, EarlyView.Bali mynas produced songs containing more syllables under increased anthropogenic disturbance. ABSTRACT Singing is an ecologically important behaviour for songbirds. Syllables function as the building blocks of birdsong, so changes to their production will have implications for overall song structure.
Oliver Jepson +3 more
wiley +1 more source
Frontiers in Ecology and Evolution, 2022 Acoustic communication serves a crucial role in the social interactions of vocal animals. Duetting—the coordinated singing among pairs of animals—has evolved independently multiple times across diverse taxonomic groups including insects, frogs, birds ...
Isabel Comella +4 more
doaj +1 more source