Results 21 to 30 of about 15,371 (258)
A decade of monitoring Atlantic cod Gadus morhua spawning aggregations in Massachusetts Bay using passive acoustics [PDF]
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Caiger, P. E., Dean, M. J., DeAngelis, A. I., Hatch, L. T., Rice, A. N., Stanley, J.
Caiger, Paul E.+8 more
core +1 more source
Satellite-tagging is increasingly becoming a powerful biotelemetry approach to obtain remote measurement through tracking free-living cetaceans, which can fill knowledge gaps on cetaceans and facilitate conservation management.
Mingming Liu+9 more
doaj +1 more source
Aircraft events correspond with vocal behavior in a passerine
Airports can affect birds by hindering acoustic communication. Here, we investigated the impacts of aircraft events on vocal behavior in wood thrush (Hylocichla mustelina) breeding one mile from an airport in Ithaca, NY, USA.
Allison S. Injaian+2 more
doaj +1 more source
Anomalous Coloration of Indo-Pacific Humpback Dolphins off Southern China
The Indo-Pacific humpback dolphin is characterized by a particular ontogenic change in body color from dark gray at birth to pure white (or with a few dark-gray spots) after reaching adulthood.
Wenzhi Lin+7 more
doaj +1 more source
A Framework for Bioacoustic Vocalization Analysis Using Hidden Markov Models [PDF]
Using Hidden Markov Models (HMMs) as a recognition framework for automatic classification of animal vocalizations has a number of benefits, including the ability to handle duration variability through nonlinear time alignment, the ability to incorporate ...
Clemins, Patrick J.+6 more
core +4 more sources
Speeding up training of automated bird recognizers by data reduction of audio features [PDF]
Automated acoustic recognition of birds is considered an important technology in support of biodiversity monitoring and biodiversity conservation activities. These activities require processing large amounts of soundscape recordings.
Allan G. de Oliveira+5 more
doaj +2 more sources
Chaos in a bioacoustic signal [PDF]
Zebra finches (Poephila guttata) emit sexually dimorphic, multiharmonic distance calls. These calls exhibit deterministic chaos. This was demonstrated by first digitizing the time series of the calls of five adult birds of each sex, then embedding a stationary portion of each, selecting an appropriate time delay (tau) value, and generating three ...
Edward R. Buchler+2 more
openaire +2 more sources
Small-and-coastal-form Bryde’s whales (Balaenoptera edeni edeni) are known to inhabit coastal and continental shelf waters. However, little is known on their ethological activities, especially underwater behaviours. Here, we deployed a suction cup tag on
Lijun Dong+3 more
doaj +1 more source
First record of humpback whale songs in Southern Chile: Analysis of seasonal and diel variation [PDF]
Male humpback whales (Megaptera novaeangliae) produce complex, patterned songs that are traditionally recorded on their breeding grounds. In this work, we report results from the first continuous acoustic monitoring of a humpback whale feeding ground off
Acevedo+90 more
core +2 more sources
Seagrass Posidonia is impaired by human-generated noise
Solé et al. report morphological and ultrastructural changes in seagrass, after exposure to human generated noise. These data suggest that noise pollution can potentially affect the health status of seagrass and thereby contribute to the depletion of ...
Marta Solé+6 more
doaj +1 more source