Assessment of seabird richness and seasonality on the seamounts of Cocos Submarine Volcanic Ridge: analysis along routes of research and ecotourism

 

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Bibliographische Detailangaben
Autoren: Sergio Arias, Roberto Vargas-Masís, Geiner Golfín Duarte
Format: artículo original
Status:Versión publicada
Publikationsdatum:2025
Beschreibung:Seabirds play a critical role in oceanic ecosystems, yet they remain one of the least studied groups in the Tropical Eastern Pacific, particularly in Costa Rica. This study analyzed the richness and seasonality of seabirds associated with the submarine seamounts of the Cocos Submarine Volcanic Ridge, through systematic observations conducted in 182 surveys between 2020 and 2025 during nine expeditions following research and ecotourism routes to Cocos Island. A total of 31 species belonging to eight families were recorded, with Laridae, Hydrobatidae, and Procellariidae being the most represented. The most frequently detected species were Sula sula, Sula brewsteri and Ardenna pacifica. Nine species are breeding residents, twenty are migratory, and two are accidental; additionally, six species are listed under some threat category according to the IUCN. The results highlight the role of seamounts as key habitats and aggregation and transit points for oceanic birds of diverse origins and emphasize the value of scientific ecotourism as a monitoring tool. This study provides a baseline for future marine conservation programs and promotesthe integration of seabirds as bioindicators or focal elements in the management of the Tropical Eastern Pacific.
Land:Portal de Revistas UNED
Institution:Universidad Estatal a Distancia
Repositorio:Portal de Revistas UNED
Sprache:Español
OAI Identifier:oai:revistas.investiga.uned.ac.cr:article/6275
Online Zugang:https://revistas.uned.ac.cr/index.php/biocenosis/article/view/6275
Stichwort:seabirds
Eastern Tropical Pacific
Cocos Range
seasonality
bird richness
aves marinas
Pacífico Este Tropical
Cordillera del Coco
estacionalidad
riqueza de aves