Results 31 to 40 of about 12,723 (151)

Active and Passive acoustic logging applied to the detection of preferential flow in a sedimentary aquifer

Science and Technology for Energy Transition, 2023
Two boreholes of an experimental site located in the Cher region (France) were investigated via Full Waveform Acoustic Logging (FWAL). The acoustic tool used for the FWAL experiments is a flexible monopole tool holding two pairs of piezoelectric ...
Mari Jean Luc, Delay Frederick, Voisin Christophe, Gaudiani Pierre   +3 more
doaj   +1 more source

Acoustic Signals and Behavior of the Invasive Freshwater Crayfish Cherax destructor (Clark, 1936)

Journal of Marine Science and Engineering, 2023
The study of acoustic signals in aquatic animals contributes to developing new monitoring systems based on passive acoustics and improves our knowledge of their behaviors and ecology.
Clarissa De Vita, Manuela Mauro, Mirella Vazzana, Marco Arculeo, Vincenzo Arizza, Maria Ceraulo, Giuseppa Buscaino   +6 more
doaj   +1 more source

Underwater Soundscape Monitoring and Fish Bioacoustics: A Review

Fishes, 2018
Soundscape ecology is a rapidly growing field with approximately 93% of all scientific articles on this topic having been published since 2010 (total about 610 publications since 1985).
Adelaide V. Lindseth, Phillip S. Lobel
doaj   +1 more source

Population size estimation of chirp and grunt generating fish and mammals using cross-correlation based technique with three acoustic sensors

Journal of Ocean Engineering and Science, 2019
Passive acoustic monitoring has the potential to be a useful tool for population estimation of sound-producing fish and mammals (mostly whales).
Shaik Asif Hossain, Monir Hossen
doaj   +1 more source

Automated detection of Hainan gibbon calls for passive acoustic monitoring

Remote Sensing in Ecology and Conservation, 2021
Extracting species calls from passive acoustic recordings is a common preliminary step to ecological analysis. For many species, particularly those occupying noisy, acoustically variable habitats, the call extraction process continues to be largely ...
Emmanuel Dufourq, Ian Durbach, James P. Hansford, Amanda Hoepfner, Heidi Ma, Jessica V. Bryant, Christina S. Stender, Wenyong Li, Zhiwei Liu, Qing Chen, Zhaoli Zhou, Samuel T. Turvey   +11 more
doaj   +1 more source

Buzzy bees: Improving the monitoring of pollinator activity in sunflower fields with continuous acoustic recording and deep learning

Ecological Informatics
Animal pollination is involved in the reproduction of 90% of flowering plants. Approximately 70% of crops at global scale rely on pollinators, and growing concerns about insect decline highlight the need for effective monitoring of their activity ...
Ludovic Crochard, Léa Mariton, Colin Fontaine, Mathilde Baude, Maxime Ragué, Didier Bas, Sabrina Gaba, Vincent Bretagnolle, Romain Julliard, Yves Bas   +9 more
doaj   +1 more source

Community Bioacoustics: Studying Acoustic Community Structure for Ecological and Conservation Insights

Frontiers in Ecology and Evolution, 2021
The diversity of animal acoustic signals has evolved due to multiple ecological processes, both biotic and abiotic. At the level of communities of signaling animals, these processes may lead to diverse outcomes, including partitioning of acoustic signals
Vaibhav Chhaya, Sutirtha Lahiri, M. Abhinava Jagan, Ram Mohan, Nafisa A. Pathaw, Anand Krishnan   +5 more
doaj   +1 more source

Sensors versus surveyors: Comparing passive acoustic monitoring, camera trapping and observer‐based monitoring for terrestrial mammals

Methods in Ecology and Evolution
Mammals play vital roles in ecological communities, but many are in rapid decline worldwide. Comprehensive monitoring of mammal populations is crucial for effective conservation, but large‐scale monitoring presents significant challenges.
Sebastian Hoefer, Slade Allen‐Ankins, Donald T. McKnight, Eric J. Nordberg, Lin Schwarzkopf   +4 more
doaj   +1 more source

Passive acoustic monitoring and convolutional neural networks facilitate high-resolution and broadscale monitoring of a threatened species

Ecological Indicators
Population monitoring is an essential component of biodiversity conservation and management, but low detection probabilities for rare and/or cryptic species makes estimating abundance and occupancy challenging.
Adam Duarte, Matthew J. Weldy, Damon B. Lesmeister, Zachary J. Ruff, Julianna M.A. Jenkins, Jonathon J. Valente, Matthew G. Betts   +6 more
doaj   +1 more source

Estimating the minimum numbers of calling mysticetes using passive acoustic bearings [PDF]

JASA Express Letters
Monitoring the abundance and distribution of marine mammals is essential for evaluating human and environmental effects. Passive acoustic monitoring offers a non-visual alternative, but estimating animal numbers remains difficult.
S. Bruce Martin, Julien J.-Y. Delarue, Ildar R. Urazghildiiev, Briand J. Gaudet, Eloise T. Callaghan, Kerkeslin MacDonald, Joanna E. Mills Flemming, Jennifer L. Miksis-Olds   +7 more
doaj   +1 more source