Results 51 to 60 of about 337 (166)
Ciencias Marinas, 2016 Abundance estimates for the Antillean manatee, Trichechus manatus manatus, in the southern Gulf of Mexico are based on interviews, mortality reports, and opportunistic sightings.
Giselle Puc-Carrasco +3 more
doaj +1 more source
Endangered Species Research, 2020 Population assessments and species monitoring for many endangered marine megafauna are limited by the challenges of identifying and tracking individuals that live underwater in remote and sometimes inaccessible areas.
Landeo-Yauri, SS +4 more
doaj +1 more source
Twelve years of “Astro” in Sergipe State: in search of harmony between the manatee and the local waterside communities =Doze anos de “Astro” no Estado de Sergipe: buscando harmonia entre o peixe-boi e as comunidades ribeirinhas [PDF]
Acta Scientiarum: Biological Sciences, 2012 The Antillean manatee (Trichechus manatus) is the most threatened aquatic mammal in Brazil. It was considered to be extinct in Sergipe until 1998, when a re-introduced animal (Astro) arrived.
Stephen Francis Ferrari +1 more
doaj +1 more source
Rapidly declining seagrass meadows in Brazil: Findings from satellite imagery and local knowledge
People and Nature, Volume 8, Issue 5, Page 1155-1171, May 2026.Abstract Due to the limitations of individual monitoring approaches, integrating social perceptions with multiple advanced technologies provides a new opportunity to gain a comprehensive understanding of ecosystem degradation. We combined historical aerial mapping, satellite imagery, semi‐structured interviews with local stakeholders, and a bilingual ...
Karine Matos Magalhães +6 more
wiley +1 more source
Multi‐Scale Habitat Selection of Greater Caribbean Manatees in Sian Ka'an Biosphere Reserve, Mexico
Marine Mammal Science, Volume 42, Issue 1, January 2026.ABSTRACT Habitat selection describes population distribution as a function of environmental features. It is a fundamental process with primordial ecological and evolutionary implications. To accurately describe habitat selection, it is important to identify temporal and spatial scales perceived by the population and use these scales when modeling ...
Émilie Gagnon +7 more
wiley +1 more source
Drone photogrammetry reveals contrasting body conditions of dugongs across the Indo‐Pacific
Remote Sensing in Ecology and Conservation, Volume 11, Issue 6, Page 701-718, December 2025.The monitoring of body condition has gained traction as a way to provide early warning signals of population decline, prompting conservation actions. However, the environmental and anthropogenic drivers of body condition variations are rarely investigated.
Camille Goudalier +16 more
wiley +1 more source
Journal of Zoological Systematics and Evolutionary Research, 2016 We employed landmark-based 3D geometric morphometrics to assess cranial size and shape diversification in Trichechus manatus and T. inunguis to compare it with patterns among all manatee taxa (T. manatus latirostris, T. m. manatus, T. inunguis and T. senegalensis), and to analyse geographic variation within American manatee populations, using a sample ...
Helen M. D. do R. Barros +6 more
openaire +1 more source
Ocurrence of Cryptosporidium spp. in Amazonian manatees (Trichechus inunguis, Natterer, 1883) [PDF]
Biotemas, 2007 The apicomplexa protozoa Cryptosporidium infects several mammals, including terrestrial and aquatic species. In the epidemiology of this infection, the ingestion of water and/or food contamined with oocysts comprises the main mechanism of transmission to
Maria Aparecida da Glória Faustino +8 more
doaj
Remote Sensing in Ecology and Conservation, Volume 11, Issue 2, Page 172-186, April 2025.We developed a method combining passive acoustic monitoring and convolutional neural networks to automatically detect the presence of Amazonian manatees in a floodplain lake over two flooded seasons. The CNN model showed a high performance (98% average precision) and was applied to process 226 days of acoustic recordings.
Florence Erbs +5 more
wiley +1 more source
Mammal Review, Volume 55, Issue 2, April 2025.This review identifies key causes of morbidity and mortality in Southern Hemisphere small Odontoceti, highlighting significant anthropogenic threats and the enhanced need for conservation strategies. Key findings include high rates of entanglements and a diverse range of infectious pathogens. Abstract Marine mammals serve as sentinels for environmental
Rebecca Souter +3 more
wiley +1 more source