Results 1 to 10 of about 5,581 (218)

Long-term associations among male sperm whales (Physeter macrocephalus). [PDF]

PLoS ONE, 2020
Little is known about the social structure of male sperm whales (Physeter macrocephalus) after they leave their natal units. While previous studies found no evidence for preferred associations among males, the observation of mass-strandings consisting ...
Hayao Kobayashi, Hal Whitehead, Masao Amano   +2 more
doaj   +5 more sources

Nursing behavior in sperm whales (Physeter macrocephalus) [PDF]

Animal Behavior and Cognition, 2023
In mammals, lactation is the universal behavior of feeding offspring and has a fundamental nutritional and social value with offspring staying near their mothers.
François Sarano, Véronique Sarano, Modan-Lou Tonietto, Adrien Yernaux, Jean-Luc Jung, Marion Arribart, Justine Girardet, Axel Preud'homme, René Heuzey, Fabienne Delfour, Hervé Glotin, Isabelle Charrier, Olivier Adam   +12 more
doaj   +3 more sources

Dolphin Morbillivirus Associated with a Mass Stranding of Sperm Whales, Italy [PDF]

Emerging Infectious Diseases, 2017
In September 2014, seven sperm whales were stranded along Italy’s Adriatic coastline. Postmortem investigations on 3 female adult whales and 1 male fetus carried by the largest female revealed molecular and immunohistochemical evidence of dolphin ...
Sandro Mazzariol, Cinzia Centelleghe, Andrea Di Provvido, Ludovica Di Renzo, Giusy Cardeti, Antonella Cersini, Gianluca Fichi, Antonio Petrella, Cristina Esmeralda Di Francesco, Walter Mignone, Cristina Casalone, Giovanni Di Guardo   +11 more
doaj   +4 more sources

Age and interpulse interval relation from newborn to adult sperm whale (Physeter macrocephalus) off Mauritius [PDF]

Scientific Reports
Sperm whales (Physeter macrocephalus) have been studied for decades, but the development of their clicks during the animal growth is not yet well known.
Maxence Ferrari, Marie Trinh, François Sarano, Véronique Sarano, Pascale Giraudet, Axel Preud’homme, René Heuzey, Hervé Glotin   +7 more
doaj   +2 more sources

Multidisciplinary studies on a sick-leader syndrome-associated mass stranding of sperm whales (Physeter macrocephalus) along the Adriatic coast of Italy. [PDF]

Sci Rep, 2018
Mass strandings of sperm whales (Physeter macrocephalus) are rare in the Mediterranean Sea. Nevertheless, in 2014 a pod of 7 specimens stranded alive along the Italian coast of the Central Adriatic Sea: 3 individuals died on the beach after a few hours ...
Mazzariol S, Centelleghe C, Cozzi B, Povinelli M, Marcer F, Ferri N, Di Francesco G, Badagliacca P, Profeta F, Olivieri V, Guccione S, Cocumelli C, Terracciano G, Troiano P, Beverelli M, Garibaldi F, Podestà M, Marsili L, Fossi MC, Mattiucci S, Cipriani P, De Nurra D, Zaccaroni A, Rubini S, Berto D, de Quiros YB, Fernandez A, Morell M, Giorda F, Pautasso A, Modesto P, Casalone C, Di Guardo G.   +32 more
europepmc   +5 more sources

Life History Traits of Sperm Whales Physeter macrocephalus Linnaeus, 1758 Stranded along Italian Coasts (Cetartiodactyla: Physeteridae) [PDF]

Animals, 2022
We investigated the relationship between age and body length, and age at sexual maturity of Physeter macrocephalus individuals stranded along the Italian coast.
Nicola Maio, Tatiana Fioravanti, Lucrezia Latini, Agnese Petraccioli, Marcello Mezzasalma, Bruno Cozzi, Sandro Mazzariol, Michela Podestà, Gianni Insacco, Francesco Pollaro, Giuseppe Lucifora, Ida Ferrandino, Nicola Zizzo, Filippo Spadola, Fulvio Garibaldi, Fabio Maria Guarino, Andrea Splendiani, Vincenzo Caputo Barucchi   +17 more
doaj   +2 more sources

Female, juvenile, and calf sperm whale Physeter macrocephalus (Linnaeus 1758) records from Ireland [PDF]

Ecology and Evolution
Sperm whales spatially segregate by sex and social behavior as they mature. In the North Atlantic, male whales move to higher latitudes as far as Svalbard at 80° N, while females and young whales typically remain around lower latitudes below 40–45° N ...
Seán A. O'Callaghan, Bogna Griffin, Stephanie Levesque, Martin Gammell, Joanne O'Brien   +4 more
doaj   +2 more sources

Cultural turnover among Galápagos sperm whales [PDF]

Royal Society Open Science, 2016
While populations may wax and wane, it is rare for an entire population to be replaced by a completely different set of individuals. We document the large-scale relocation of cultural groups of sperm whale off the Galápagos Islands, in which two ...
Mauricio Cantor, Hal Whitehead, Shane Gero, Luke Rendell   +3 more
doaj   +4 more sources

Behaviour and vocalizations of two sperm whales (Physeter macrocephalus) entangled in illegal driftnets in the Mediterranean Sea. [PDF]

PLoS ONE, 2021
Illegal driftnetting causes each year several entanglements and deaths of sperm whales in different Mediterranean areas, primarily in the Tyrrhenian Sea.
Monica Francesca Blasi, Valentina Caserta, Chiara Bruno, Perla Salzeri, Agata Irene Di Paola, Alessandro Lucchetti   +5 more
doaj   +2 more sources

Classification of Sperm Whale Clicks (Physeter Macrocephalus) with Gaussian-Kernel-Based Networks [PDF]

Algorithms, 2009
With the aim of classifying sperm whales, this report compares two methods that can use Gaussian functions, a radial basis function network, and support vector machines which were trained with two different approaches known as C-SVM and ν-SVM.
Michel André, Eric Delory, Mike van der Schaar   +2 more
doaj   +5 more sources