Unrecognized coral species diversity masks differences in functional ecology

 

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Auteurs: Boulay, Jennifer N., Hellberg, Michael E., Cortés Núñez, Jorge, Baums, Iliana B.
Format: artículo original
Date de publication:2014
Description:Porites corals are foundation species on Pacific reefs but a confused taxonomy hinders understanding of their ecosystem function and responses to climate change. Here, we show that what has been considered a single species in the eastern tropical Pacific, Porites lobata, includes a morphologically similar yet ecologically distinct species, Porites evermanni. While P. lobata reproduces mainly sexually, P. evermanni dominates in areas where triggerfish prey on bioeroding mussels living within the coral skeleton, thereby generating asexual coral fragments. These fragments proliferate in marginal habitat not colonized by P. lobata. The two Porites species also show a differential bleaching response despite hosting the same dominant symbiont subclade. Thus, hidden diversity within these reef-builders has until now obscured differences in trophic interactions, reproductive dynamics and bleaching susceptibility, indicative of differential responses when confronted with future climate change.
Pays:Kérwá
Institution:Universidad de Costa Rica
Repositorio:Kérwá
Langue:Inglés
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/104035
Accès en ligne:https://royalsocietypublishing.org/rspb/article-abstract/281/1776/20131580/76970/Unrecognized-coral-species-diversity-masks?redirectedFrom=fulltext
https://hdl.handle.net/10669/104035
https://doi.org/10.1098/rspb.2013.1580
Mots-clés:cryptic species
zooxanthellae
coral-bleaching susceptibility
asexual coral propagation
trophic interactions
microsatellites