Results 81 to 90 of about 20,302 (308)
Bioacoustic differentiation of calls in the chiffchaff complex
PeerJ, 2022 The chiffchaff complex is a group of common forest bird species, notorious for the number of cryptic taxa recently discovered, being a great example of speciation in action. Vocalizations have been crucial to unveil its hidden diversity. In this study we quantitatively analyze the acoustic characteristics of their calls with permutational analysis of ...
Calviño Cancela, María +2 more
openaire +4 more sources
Remote Sensing in Ecology and Conservation, EarlyView.Birds are commonly used as indicators of the effect of habitat degradation on biodiversity in the tropics. However, monitoring birds and their habitat in a way that is consistent, reliable and scalable remains an important challenge. Here, we examine whether bioacoustics and remote sensing can be used to efficiently monitor avian biodiversity and ...
Marius Somveille +10 more
wiley +1 more source
Low Survivals and Rapid Demographic Decline of a Threatened Estuarine Delphinid
Frontiers in Marine Science, 2022 Beibu Gulf’s (BBG) Indo-Pacific humpback dolphins present both a genetic differentiation and phenotypical differences from conspecifics from other areas of the South China Sea.
Wenzhi Lin +10 more
doaj +1 more source
Enhancing AIS to Improve Whale-Ship Collision Avoidance and Maritime Security [PDF]
, 2009 Whale-ship strikes are of growing worldwide concern due to the steady growth of commercial shipping. Improving the current situation involves the creation of a communication capability allowing whale position information to be estimated and exchanged ...
Fall, Kevin +2 more
core +2 more sources
Methods in Ecology and Evolution, 2021 The field of Bioacoustics has flourished in the past few decades, with numerous initiatives towards its application as a tool for biodiversity conservation.
Pedro C. Rocha, P. Romano
semanticscholar +1 more source
HOWLish: a CNN for automated wolf howl detection
Remote Sensing in Ecology and Conservation, EarlyView.Automated detection of wolf howls presents a great opportunity for large‐scale passive acoustic monitoring of wolf populations. Here we present HOWLish, a CNN trained for automated wolf howl detection, based on thousands of hours of soundscapes recorded in the wild.
Rafael Campos +3 more
wiley +1 more source
The voice from the hereafter: vocalisations in three species of Atelopus from the Venezuelan Andes, likely to be extinct [PDF]
Herpetozoa, 2019 Atelopus is a species-rich group of Neotropical bufonids. Present knowledge on bioacoustics in this genus is relatively poor, as vocalisations have been described in only about one fifth of the ca. 100 species known.
Stefan Lötters +4 more
doaj +3 more sources
Sperm whales in the waters off China: A glimpse of the past and present
Water Biology and Security, 2023 Spatiotemporal information is crucial for cetacean research and conservation, particularly for wide-ranging and migratory species. Sperm whales (Physeter macrocephalus) are distributed worldwide in deep oceans; however, little is known about the species ...
Mingming Liu, Mingli Lin, Songhai Li
doaj +1 more source
Acoustic model adaptation for ortolan bunting (Emberiza hortulana L.) song-type classification [PDF]
, 2008 Automatic systems for vocalization classification often require fairly large amounts of data on which to train models. However, animal vocalization data collection and transcription is a difficult and time-consuming task, so that it is expensive to ...
Johnson, Michael T. +2 more
core +2 more sources
Wildlife Biology, EarlyView.Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner +2 more
wiley +1 more source