Results 11 to 20 of about 616 (169)
Sirenian pachyostosis revisited [PDF]
Swiss Journal of PalaeontologyPachyostosis, the increase in volume of bones, has been documented in a myriad of tetrapods that secondarily adapted to the aquatic environment. However, this convergent trait has hitherto only been quantified in complete ribs and long bones.
Nicolas Wagner +5 more
doaj +4 more sources
Cetacean loss of the master adipose tissue regulator β3-adrenergic receptor may underlie their thick blubber and an Oligocene radiation and dispersal [PDF]
Nature CommunicationsBlubber is a hydrostatic pressure-resistant and insulating vascularized layer of subcutaneous adipose tissue beneath the skin found in cetaceans, pinnipeds, and sirenians.
Ran Tian +4 more
doaj +2 more sources
Salmonellosis in a young Amazonian manatee (Trichechus inunguis) [PDF]
Ciência Rural, 2020 : The objective of this study was to describe a case of salmonellosis in an Amazonian manatee (Trichechus inunguis). The animal was rescued from a tributary of the Capim River, in the municipality of Goianésia do Pará, Pará, Brazil, kept in a pool, and ...
José de Jesus Correa Neto +8 more
doaj +1 more source
Estimating the Abundance of Marine Mammal Populations
Frontiers in Marine Science, 2021 Motivated by the need to estimate the abundance of marine mammal populations to inform conservation assessments, especially relating to fishery bycatch, this paper provides background on abundance estimation and reviews the various methods available for ...
Philip S. Hammond +16 more
doaj +1 more source
First Non-Invasive Monitoring of Fecal Steroids in Greater Caribbean Manatees (Trichechus manatus manatus). [PDF]
Zoo BiolThis study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Bermúdez-Cardona V +3 more
europepmc +2 more sources
Life Expectancy in Marine Mammals Is Unrelated to Telomere Length but Is Associated With Body Size
Frontiers in Genetics, 2021 Marine mammals vary greatly in size and lifespan across species. This study determined whether measures of adult body weight, length and relative telomere length were related to lifespan.
Kittisak Buddhachat +8 more
doaj +1 more source
Widespread Use of Migratory Megafauna for Aquatic Wild Meat in the Tropics and Subtropics
Frontiers in Marine Science, 2022 Wild animals are captured or taken opportunistically, and the meat, body parts, and/or eggs are consumed for local subsistence or used for traditional purposes to some extent across most of the world, particularly in the tropics and subtropics.
Daniel J. Ingram +24 more
doaj +1 more source
Associated benefits of manatee watching in the Costa dos Corais Environmental Protection Area
Frontiers in Marine Science, 2022 Marine mammals provide diverse and interconnected ecosystem services. According to the literature, the use of these services is associated with human needs related to provision, ecosystem regulation, education, culture, spirituality, and recreation ...
Flávia Bonfietti Izidoro +5 more
doaj +1 more source
Nature Conservation Research: Заповедная наука, 2023 Marine mammal watching is a non-consumptive wildlife-oriented tourism practice. Trichechus manatus manatus (hereinafter – Antillean manatee) belongs to the charismatic marine megafauna and is subject to this practice at many places.
Paula D. F. Coutinho +2 more
doaj +1 more source
Comparative Cognition & Behavior Reviews, 2022 Vocal production learning is the ability to modify a vocal output in response to auditory experience. It is essential for human speech production and language acquisition. Vocal learning evolved independently several times in vertebrates, indicating evolutionary pressure in favor of this trait. This enables cross-species comparative analysis to be used
Anton Baotic +3 more
doaj +3 more sources