Results 11 to 20 of about 2,310 (195)

Drone photogrammetry reveals contrasting body conditions of dugongs across the Indo‐Pacific

open access: yesRemote Sensing in Ecology and Conservation
The monitoring of body condition, reflecting the state of individuals' energetic reserves, can provide early warning signals of population decline, facilitating prompt conservation actions.
Camille Goudalier   +16 more
doaj   +2 more sources

Elephants and Sirenians: A Comparative Review across Related Taxa in Regard to Learned Vocal Behavior

open access: yesComparative 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

Vulnerability of marine megafauna to global at-sea anthropogenic threats. [PDF]

open access: yesConserv Biol
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
VanCompernolle M   +309 more
europepmc   +2 more sources

Agonistic interactions initiated by adult bottlenose dolphins on Antillean manatee calves in the Caribbean Sea. [PDF]

open access: yesPLoS ONE
The dynamics and drivers of inter-species interactions in the wild are poorly understood, particularly those involving social animal species. Inter-species interactions between cetaceans and sirenians have rarely been documented and investigated.
Eric A Ramos   +8 more
doaj   +2 more sources

Salmonellosis in a young Amazonian manatee (Trichechus inunguis) [PDF]

open access: yesCiência 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

open access: yesFrontiers 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

Life Expectancy in Marine Mammals Is Unrelated to Telomere Length but Is Associated With Body Size

open access: yesFrontiers 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

open access: yesFrontiers 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

open access: yesFrontiers 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

Manatee watching is widespread and seasonally affected in Northeast Brazil: a case of the Endangered Trichechus manatus manatus (Sirenia: Trichechidae)

open access: yesNature 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

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