Results 71 to 80 of about 3,666 (187)

Exploring Progesterone Levels and Scaled Mass Index as Predictors of Pregnancy in Free‐Ranging Belugas

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Monitoring pregnancy rates can provide vital information regarding a population's viability and trajectory. This study combined drone‐based photogrammetry with biopsy darting to determine if the Scaled Mass Index (SMI) estimated from aerial images can be used to identify pregnant, free‐ranging St.
Meredith Sherrill, Limoilou‐Amélie Renaud, Nicholas Kellar, Robert Michaud, Véronique Lesage, Jonathan Verreault   +5 more
wiley   +1 more source

Vulnerability to Global Environmental Change? Isotopic Inference of a Resident Population of Common Bottlenose Dolphins, Tursiops truncatus, in a Coastal Lagoon in the Southern Gulf of Mexico

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Through the isotopic composition of 211 samples of six different tissues (muscle, liver, heart, kidney, spleen, and lung) obtained from 51 Tursiops truncatus strandings over nearly a decade (2013–2022), this study evaluated the impact of environmental variations on a resident population in a coastal lagoon in the southern Gulf of Mexico ...
Karem Leonela Naranjo‐Ruiz, Yassir Edén Torres‐Rojas, Alberto Delgado‐Estrella, Antonio Luis Delgado‐Huertas   +3 more
wiley   +1 more source

The Case Study of Nesfatin-1 in the Pancreas of Tursiops truncatus

Frontiers in Physiology, 2018
Nesfatin-1 (Nesf-1) is an anorexigenic peptide involved in the regulation of homeostatic feeding. Nesf-1 is expressed in the central nervous system and other organs, including pancreas, where it promotes the release of insulin from β-cells. This raises the possibility that Nesf-1 dysfunction could be involved in metabolic disorders, particularly in ...
Claudia Gatta, Elena De Felice, Livia D’Angelo, Livia D’Angelo, Lucianna Maruccio, Adele Leggieri, Carla Lucini, Antonio Palladino, Marina Paolucci, Paola Scocco, Ettore Varricchio, Paolo de Girolamo   +11 more
openaire   +6 more sources

First isolation of Prototheca bovis from a bottlenose dolphin (Tursiops truncatus)

Medical Mycology Case Reports
To our knowledge, this is the first report of Prototheca sp. isolated from the digestive tract of a dolphin. A captive-born female bottlenose dolphin (Tursiops truncatus) weighing 165 kg that was housed at Enoshima Aquarium presented with a slightly ...
Chika Shirakata, Kanon Tsurumi, Koichi Makimura, Rui Kano   +3 more
doaj   +1 more source

Identifying Dolphin Whistle Producers With Deep Learning: Moving Beyond Signature Whistles

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Bottlenose dolphins produce several types of whistle contours, including signature whistles, shared whistles, copies of conspecifics' signature whistles, and variant whistles. While signature whistles as individual identifiers are well studied, less has been demonstrated for identifying dolphins from non‐signature whistle types.
Brittany Jones, Maximilian Du, Jessica Sportelli   +2 more
wiley   +1 more source

Morfologia do aparato hióide de algumas espécies de odontocetos do sul do Brasil

Biotemas, 2009
O aparato hióide dos odontocetos serve como principal ponto de fixação de músculos e ligamentos que subsidiam a respiração, a produção de sons e a alimentação.
Dan Jacobs Pretto, Gabriela Oliveira, Maurício Eduardo Graipel, Paulo César Simões-Lopes   +3 more
doaj   +1 more source

Preserving an Imperiled Porpoise Through Pixels: Digitization of a Vaquita (Phocoena sinus) Skeleton, the World's Most Endangered Marine Mammal

Marine Mammal Science, Volume 42, Issue 3, July 2026.
Jamie L. Knaub, Brittany A. Dolan, Philip Unitt, Robert L. Brownell Jr., Tricia L. Meredith, Marianne E. Porter   +5 more
wiley   +1 more source

Investigating the Predation Risk of Coastal Dolphins via the Presence of Shark Bite Scars Across Southeast Queensland, Australia

Ecology and Evolution, Volume 16, Issue 6, June 2026.
Shark bite scars were analysed on coastal dolphins in southeast Queensland, Australia to compare the predation risk between species and habitats. Australian humpback dolphins (Sousa sahulensis) exhibited the highest bite rates and individuals found in sheltered waters had higher shark bite scar prevalence than open waters.
Georgina V. Hume, Alexis L. Levengood, Gemma L. Webster, Kathy A. Townsend, Victor M. Peddemors, Bonnie J. Holmes   +5 more
wiley   +1 more source

Mating Attempts and Sustained Interest Behaviors of Wild Boars (Sus scrofa) Toward a Dead Conspecific

Ecology and Evolution, Volume 16, Issue 6, June 2026.
We documented behavioral responses of wild boars (Sus scrofa) to a conspecific carcass using camera traps throughout the full decomposition process. One adult male exhibited necrophilic behavior and sustained non‐feeding interactions with the carcass, highlighting pronounced individual variation.
Akino Inagaki, Kei Okuda, Maximilian L. Allen, Shinsuke Koike   +3 more
wiley   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

Oikos, Volume 2026, Issue 6, June 2026.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley, Philip S. Hammond, Paul M. Thompson, Graham J. Pierce, Lindsay J. Wilson, Ailsa J. Hall, Gordon D. Hastie, Debbie J. F. Russell   +7 more
wiley   +1 more source