Results 111 to 120 of about 8,674 (182)

Source amplitude increases with body‐mass across avian genera

Ibis, Volume 168, Issue 1, Page 127-139, January 2026.
Amplitude, or intensity, of sound is a fundamental characteristic of acoustic communication, with relevance in many scientific fields. The amplitude of an animal's acoustic signal at its source (‘source amplitude’) may be particularly relevant in the field of acoustic allometry, where relationships between species' physical and acoustic features (e.g ...
Morgan A. Ziegenhorn, Richard B. Lanctot, Stephen C. Brown, Sarah T. Saalfeld, Paul A. Smith, Nicolas Lecomte   +5 more
wiley   +1 more source

Estimating population size for California spotted owls and barred owls across the Sierra Nevada ecosystem with bioacoustics

Ecological Indicators, 2023
Kevin G. Kelly, Connor M. Wood, Kate A. McGinn, H. A. Kramer, Sarah C. Sawyer, S. Whitmore, Dana S. Reid, Stefan Kahl, Aimee Reiss, Jonathan P. Eiseman, W. Berigan, J. Keane, P. Shaklee, Lief R Gallagher, Thomas E. Munton, H. Klinck, R. J. Gutiérrez, M. Z. Peery   +17 more
semanticscholar   +1 more source

Comparative Analysis of the Whistles of Three Oceanic Dolphins in the Comoros

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT The Shisiwani National Park (Anjouan, Comoros) is a cetacean biodiversity hotspot. However, the vocal behavior of marine mammals inhabiting the area has never been studied. In 2023, we conducted a 400‐nautical‐mile survey from a 5‐m motorboat to determine their presence.
Rihana Ali Ahmed, Anna Zanoli, Federica Scebba, Fouad Abdou Rabi, Youssouf Ben Ali Abdallah, Sara Ferri, Francesco Caruso, Cristina Giacoma, Livio Favaro   +8 more
wiley   +1 more source

Temporal Variability in Call Rates of Weddell (Leptonychotes weddellii) and Leopard (Hydrurga leptonyx) Seals Near Davis Station, East Antarctica

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT We investigated Weddell seal (Leptonychotes weddellii) and leopard seal (Hydrurga leptonyx) vocalizations using passive acoustic monitoring beneath landfast ice and open water, 5.6 km seaward from Davis Station, East Antarctica. Eight‐minute recordings were manually sampled at 1 h intervals over 24 h every 10 days from 24 July 2021 to 30 ...
Emma A. Simmonds, John M. Terhune, Brian S. Miller, John van den Hoff   +3 more
wiley   +1 more source

orcAI: A Machine Learning Tool to Detect and Classify Acoustic Signals of Killer Whales in Audio Recordings

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Acoustic monitoring is an essential tool for investigating animal communication and behavior when visual contact is limited, but the scalability of bioacoustic projects is often limited by time‐intensive manual auditing of focal signals. To address this bottleneck, we introduce orcAI—a novel deep learning framework for the automated detection ...
Sebastian Bonhoeffer, Anna Selbmann, Daniel C. Angst, Nicolas Ochsner, Patrick J. O. Miller, Filipa I. P. Samarra, Chérine D. Baumgartner   +6 more
wiley   +1 more source

Melon‐Headed Whale (Peponocephala electra) Occurrence in the Equatorial Mid‐Atlantic Ocean With Descriptions of Their Whistles

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Acoustic studies for any cetacean species in tropical Atlantic Ocean waters are scarce, especially for oceanic dolphins, such as the melon‐headed whale, Peponocephala electra. Here we describe a unique visual and acoustic record for this species, filling an information gap about the acoustic patterns of these delphinids in this part of the ...
Diana C. Freitas, Manuela Bassoi, Isis V. B. Da Silva, Luane S. Ferreira, Izabela C. Laurentino, Juliana R. Moron, Renata S. Sousa‐Lima   +6 more
wiley   +1 more source

A Detailed Characterization of the Whistle Repertoire of Fraser's Dolphins (Lagenodelphis hosei) From the Lesser Antilles

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Fraser's dolphin (Lagenodelphis hosei) remains poorly studied due to its elusive behavior, rarity, and preference for deep offshore habitats. While dolphins use frequency‐modulated whistles for communication, detailed acoustic descriptions exist for only a few species.
Laura J. May‐Collado, Maia Austin, Lucas Bernier, Jeffrey Bernus, Beth Brady, Lauren Viegas, Eric A. Ramos   +6 more
wiley   +1 more source

Exploring Marine Mammal Cognition as a Conservation Tool

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Cognition is an animal's real‐time adaptation system for responding to change. Rapid environmental change, often anthropogenic, is expanding the range and severity of challenges confronting wild animals. Effective conservation requires a multifaceted approach that includes animals' capacities.
Gordon B. Bauer, Peter F. Cook, Heidi E. Harley, Jason Bruck, Mel Cosentino, Charles J. Deutsch, Nicola Erdsack, Wendi Fellner, Tabitha Gunnars, Heather Manitzas Hill, Sonia V. Kumar, Malin K. Lilley, Katherine A. McHugh, Jennifer Moore, Juliana R. Moron, Andrea Ravignani, Roger L. Reep, Athena M. Rycyk, Laela S. Sayigh, Anikó Szegedi, Christina Toms, Randall S. Wells   +21 more
wiley   +1 more source

Machine Learning Methods for the Detection of Antarctic Minke Whales (Balaenoptera bonaerensis) in East Antarctica and Western Australia

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Passive acoustic monitoring is a cost‐effective means of studying marine mammals that inhabit remote and poorly accessible habitats. Since the 1970s, the mysterious “bio‐duck” sound has been reported throughout the Southern Ocean. In 2014, this was attributed to the Antarctic minke whale and has since been retrospectively categorized into ...
Aimee Kate Darias‐O'Hara, Paul Nguyen Hong Duc, Shyam Madhusudhana, Robert McCauley, Cristina Tollefsen, Christine Erbe, Brian S. Miller   +6 more
wiley   +1 more source

Population‐Level Acoustic Classification of Salish Sea Killer Whales: Integrating Biologically Informed Call Type Balancing to Build Robust Models for Conservation Monitoring

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT There is a pressing need to build population‐specific acoustic classifiers for killer whales (Orcinus orca) in the Salish Sea. However, building datasets that result in generalizable models is challenging due to diverse killer whale repertoires and confounding signals such as humpback whale calls and environmental noise.
K. J. Palmer, April Houweling, Lauren Laturnus, James Pilkington, Amalis Riera Vuibert, Jennifer Wladichuk, Ruth Joy   +6 more
wiley   +1 more source