A5055932309- Marine animal studies overview
- Underwater Acoustics Research
- Animal Vocal Communication and Behavior
- Marine and coastal plant biology
- Coral and Marine Ecosystems Studies
- Arctic and Antarctic ice dynamics
- Adventure Sports and Sensation Seeking
- Diverse Aspects of Tourism Research
- Cephalopods and Marine Biology
- Coastal and Marine Management
- Cruise Tourism Development and Management
- Marine and fisheries research
Universidad San Francisco de Quito
2012-2024
University of Antofagasta
2024
Cultural transmission of behaviour is an important aspect many animal communities ranging from humans to birds. Male humpback whales (Megaptera novaeangliae) sing a repetitive, stereotyped, socially learnt and culturally transmitted song display that slowly evolves each year. Most males within population the same, slow-evolving type; but in South Pacific, 'revolutions' have led rapid complete replacement one type by another introduced neighbouring population. Songs spread eastwards, eastern...
Abstract Understanding the distribution, habitat preference, and social structure of highly migratory species at important life history stages ( e.g ., breeding calving) is essential for conservation efforts. We investigated spatial distribution preference humpback whale groups singers, in relation to depth categories (<20 m, 20–50 >50 m) substrate type (muddy mixed) on a coastal southeastern Pacific ground. One hundred forty‐three acoustic stations 304 visual sightings were made...
Abstract Killer whales ( Orcinus orca ) have strong social matrilineal bonds and form groups long‐lasting associations, but little is known about their population or structure in an equatorial setting such as the waters around Galápagos Islands. Using 91 encounters identification photographs from 1991 to 2017, we identified 64 killer of which 18 individuals were locals with high resighting rates. Group size was small, ranging 1 15 animals, 69% containing four fewer animals. network analysis...
Abstract The Atlantic sector of the Southern Ocean (ASSO) has one highest densities Antarctic krill ( Euphausia superba ) compared to other polar and subpolar regions, which attracts migratory baleen whale species aggregate in this area for feeding. Humpback whales Megaptera novaeangliae also sing extensively while on feeding grounds allows exploration song similarity between breeding populations helps understand population mixing. results comparative analyses ASSO Ecuadorian Brazilian...
Abstract Southern Pacific humpback whales ( Megaptera novaeangliae ) breed in subtropical and tropical waters off Peru the south to Nicaragua north. The effect of warming oceans on whale distribution breeding areas remains unclear. We modeled spatial coast Ecuador relation environmental variables. analyzed temporal variability sighting rates (animals/hour) a (Manabí, 1996–1999) (Esmeraldas, 2001–2019) ground. At regional scale, we found presence was more likely shallow over continental...
Orcas ( Orcinus orca ) are the top marine predators of ocean, targeting multiple taxa including teleost fishes, elasmobranchs, seabirds, sea turtles, pinnipeds, odontocetes and other large cetaceans. According to their foraging strategies, genetics, acoustics, morphology, orcas differentiate into ecotypes. Despite cosmopolitan distribution, poorly studied in areas such as Humboldt Current System Southeast Pacific coast. Since 2018 northern Chile, presumed Type A have been observed on South...
Abstract Song evolution and revolution events recorded through time are typical cultural features for humpback whale ( Megaptera novaeangliae ) populations worldwide. However, it is unknown if song dynamics equivalent among subpopulations or breeding stocks of the South Pacific Ocean. To contribute to understanding temporal off coast Ecuador, we analyzed acoustic richness repertoire composition based on unit, phrase, over consecutive seasons from 2012 2019. We observed incomplete revolutions...
Fisheries bycatch, when non-target species are unintentionally caught in fishing gear often result fatal outcomes for wildlife and loss or damage fishers. Fishing nets mostly made of plastic other long-lasting nondegradable materials. Consequently, marine debris has been flooding the oceans over past decades with plastics contributing 60 to 80% all threatening cetaceans wildlife. Marine based form abandoned, lost, discarded “ghost-nets”, is reported as main cause entanglement cetaceans, but...
Tropical reefs provide shelter for a rich biodiversity of marine species. Off the coast Esmeraldas, rocky are scattered in shallow, small scale fishing area. Human impacts, such as fisheries, pollution, and loss gear challenging coastal ecosystems worldwide. In Eastern Pacific, there very few compilations diversity with current threats, species can be lost without notice.We mapPed benthic habitats, listed all found area compared observed Bajos de Atacames 2006 surveys conducted same...
El turismo científico es un campo emergente pero poco estudiado en la región del Pacífico sudeste. Realizamos una revisión bibliográfica para evaluar el estado actual e incluimos estudio de caso sobre los viajes investigación escuchar ballenas jorobadas costa Esmeraldas, norte Ecuador. entrevistas línea conocer cambios percepción las personas avistamiento (visual frente a auditiva). La evaluación arrojó más artículos publicados relacionados con asistidas por que literatura científico. Aun...