Results 61 to 70 of about 19,759 (293)

Long-Distance Counter Calling in Maned Wolves: Friends or Foes?

Animals, 2022
Maned wolves (Chrysocyon brachyurus) are monogamous and display biparental care for their young, although adults rarely spend time in close proximity. To better understand vocal interactions of maned wolves over long-distances, we passively recorded >10 ...
Luane S. Ferreira, Victor Sábato, Thiago A. Pinheiro, Edvaldo Neto, Luciana H. Rocha, Júlio Baumgarten, Flávio H. Rodrigues, Renata S. Sousa-Lima   +7 more
doaj   +1 more source

The Feasibility of Counting Songbirds Using Unmanned Aerial Vehicles

, 2017
Obtaining unbiased survey data for vocal bird species is inherently challenging due to observer biases, habitat coverage biases, and logistical constraints.
Barr, Janine M., Wilson, Andrew M., Zagorski, Megan E.   +2 more
core   +1 more source

Sound production in the Meagre, Argyrosomus regius (Asso, 1801): intraspecific variability associated with size, sex and context [PDF]

, 2020
Many fish taxa produce sound in voluntary and in disturbance contexts but information on the full acoustic repertoire is lacking for most species. Yet, this knowledge is critical to enable monitoring fish populations in nature through acoustic monitoring.
Amorim, Maria Clara P., Barata, Marisa, Candeias-Mendes, Ana, Fonseca, Paulo J., Pereira, Beatriz P., Pousão-Ferreira, Pedro, Vieira, Manuel   +6 more
core   +3 more sources

An Acoustic Treatment to Mitigate the Effects of the Apple Snail on Agriculture and Natural Ecosystems

Journal of Marine Science and Engineering, 2021
Global change is the origin of increased occurrence of disturbance events in natural communities, with biological invasions constituting a major threat to ecosystem integrity and functioning.
Marta Solé, José-Manuel Fortuño, Mike van der Schaar, Michel André   +3 more
doaj   +1 more source

Stress and Emotion Classification Using Jitter and Shimmer Features [PDF]

, 2007
In this paper, we evaluate the use of appended jitter and shimmer speech features for the classification of human speaking styles and of animal vocalization arousal levels.
Johnson, Michael T., Leong, Kirsten, Li, Xi, Newman, John D., Savage, Anne, Soltis, Joseph, Tao, Jidong   +6 more
core   +2 more sources

From buzzes to bytes: A systematic review of automated bioacoustics models used to detect, classify and monitor insects

Journal of Applied Ecology
Insects play vital ecological roles; many provide essential ecosystem services while others are economically devastating pests and disease vectors. Concerns over insect population declines and expansion have generated a pressing need to effectively ...
Anna B. Kohlberg, Christopher R. Myers, Laura L. Figueroa   +2 more
semanticscholar   +1 more source

Multiscale CNN based Deep Metric Learning for Bioacoustic Classification: Overcoming Training Data Scarcity Using Dynamic Triplet Loss

, 2019
This paper proposes multiscale convolutional neural network (CNN)-based deep metric learning for bioacoustic classification, under low training data conditions.
Nigam, Aditya, Rajan, Padmanabhan, Thakur, Anshul, Thapar, Daksh   +3 more
core   +1 more source

Vocal complexity in the long calls of Bornean orangutans [PDF]

PeerJ
Vocal complexity is central to many evolutionary hypotheses about animal communication. Yet, quantifying and comparing complexity remains a challenge, particularly when vocal types are highly graded.
Wendy M. Erb, Whitney Ross, Haley Kazanecki, Tatang Mitra Setia, Shyam Madhusudhana, Dena J. Clink   +5 more
doaj   +2 more sources

The shape of sound: A new R package that crosses the bridge between Bioacoustics and Geometric Morphometrics

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

Robust sound event detection in bioacoustic sensor networks

, 2019
Bioacoustic sensors, sometimes known as autonomous recording units (ARUs), can record sounds of wildlife over long periods of time in scalable and minimally invasive ways.
Bello, Juan Pablo, Farnsworth, Andrew, Kelling, Steve, Lostanlen, Vincent, Salamon, Justin   +4 more
core   +1 more source