Vulnerability of algae and seagrasses to climate change

Graziano, M; Toccaceli, M

Risultato della ricerca: Paper

Abstract

Biodiversity is undergoing rapid and worrying changes, partially driven by anthropogenic activities. Human impacts and climate change (e.g. increasing temperature and ocean acidification) represent the most serious threats to biodiversity and ecosystem functioning. Aim of this study was to assess, analysing the scientific literature and published data, how climate change can affect algae and seagrasses, evaluating their vulnerability and the possibility to use these organisms as indicators. Algae and seagrasses have a central role for several important ecological processes in aquatic ecosystems, and their loss can lead repercussions for the ecological function. Climate stressors affected acquatic vegetation, acting both in isolation and in combination with local perturbations (e.g. nutrient enrichment), reducing the resilience of marine communities. Ocean acidification has negative effects on calcification rates of calcareous algae; sea warming affects both the stability of Posidonia oceanica meadows and their potential recolonization. Considering future climate scenario researchers and policy makers have to plan measures to preserve biodiversity and the status of health of the marine ecosystems.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2012

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vulnerability
alga
biodiversity
climate change
calcareous alga
calcification
nutrient enrichment
climate
recolonization
marine ecosystem
anthropogenic effect
aquatic ecosystem
meadow
human activity
warming
perturbation
ecosystem
vegetation
temperature
ocean acidification

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Vulnerability of algae and seagrasses to climate change. / Graziano, M; Toccaceli, M.

2012.

Risultato della ricerca: Paper

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AU - Graziano, M; Toccaceli, M

AU - Mannino, Anna Maria

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AB - Biodiversity is undergoing rapid and worrying changes, partially driven by anthropogenic activities. Human impacts and climate change (e.g. increasing temperature and ocean acidification) represent the most serious threats to biodiversity and ecosystem functioning. Aim of this study was to assess, analysing the scientific literature and published data, how climate change can affect algae and seagrasses, evaluating their vulnerability and the possibility to use these organisms as indicators. Algae and seagrasses have a central role for several important ecological processes in aquatic ecosystems, and their loss can lead repercussions for the ecological function. Climate stressors affected acquatic vegetation, acting both in isolation and in combination with local perturbations (e.g. nutrient enrichment), reducing the resilience of marine communities. Ocean acidification has negative effects on calcification rates of calcareous algae; sea warming affects both the stability of Posidonia oceanica meadows and their potential recolonization. Considering future climate scenario researchers and policy makers have to plan measures to preserve biodiversity and the status of health of the marine ecosystems.

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