Climate-driven impacts of exotic species on marine ecosystems

• Autores: Bennett, Scott; Santana Garcon, Julia; Marbà, Núria; Jorda, Gabriel; Anton, Andrea; Apostolaki, Eugenia T.; Cebrian, Just; Geraldi, Nathan R.; Krause Jensen, Dorte; Lovelock, Catherine E.; Martinetto, Paulina Maria del Rosario; Pandolfi, John M.; Duarte, Carlos M.
• Año de publicación: 2021
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: ALIEN; CLIMATE CHANGE; ENVIRONMENTAL MATCHING; INVASIVE; NON-NATIVE; TEMPERATURE
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

Aim: Temperature is fundamental to the physiological and ecological performance of marine organisms, but its role in modulating the magnitude of ecological impacts by exotic species remains unresolved. Here, we examine the relationship between thermal regimes in the range of origin of marine exotic species and sites of measured impact, after human-induced introduction. We compare this relationship with the magnitude of impact exerted by exotic species on native ecosystems. Location: Global. Time period: 1977–2017 (meta-analysis). Major taxa studied: Marine exotic species. Methods: Quantitative impacts of exotic species in marine ecosystems were obtained from a global database. The native range of origin of exotic species was used to estimate the realized thermal niche for each species and compared with the latitude and climatic conditions in recipient sites of recorded impact of exotic species. The difference in median temperatures between recipient sites and the thermal range of origin (i.e., thermal midpoint anomaly) was compared with the magnitude of effect sizes by exotic species on native species, communities and ecosystems. Results: Recorded impacts occurred predominantly within the thermal niche of origin of exotic species, albeit with a tendency toward higher latitudes and slightly cooler conditions. The severity of impacts by exotic species on abundance of native taxa displayed a hump-shaped relationship with temperature. Peak impacts were recorded in recipient sites that were 2.2°C cooler than the thermal midpoint of the range of origin of exotic species, and impacts decreased in magnitude toward higher and lower thermal anomalies. Main conclusions: Our findings highlight how temperature and climatic context influence ecological impacts by exotic species in marine ecosystems and the implications for existing and novel species interactions under climate change.
Fil: Bennett, Scott. Consejo Superior de Investigaciones Científicas. Instituto Mediterráneo de Estudios Avanzados; España. University of Tasmania; Australia
Fil: Santana Garcon, Julia. Consejo Superior de Investigaciones Científicas. Instituto Mediterráneo de Estudios Avanzados; España
Fil: Marbà, Núria. Consejo Superior de Investigaciones Científicas. Instituto Mediterráneo de Estudios Avanzados; España
Fil: Jorda, Gabriel. Consejo Superior de Investigaciones Científicas. Instituto Mediterráneo de Estudios Avanzados; España
Fil: Anton, Andrea. King Abdullah University of Science and Technology; Arabia Saudita
Fil: Apostolaki, Eugenia T.. Hellenic Center for Marine Research; Grecia
Fil: Cebrian, Just. Mississippi State University; Estados Unidos
Fil: Geraldi, Nathan R.. King Abdullah University of Science and Technology; Arabia Saudita
Fil: Krause Jensen, Dorte. University Aarhus; Dinamarca
Fil: Lovelock, Catherine E.. The University of Queensland; Australia
Fil: Martinetto, Paulina Maria del Rosario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Pandolfi, John M.. The University of Queensland; Australia
Fil: Duarte, Carlos M.. King Abdullah University of Science and Technology; Arabia Saudita