IMPACT OF CLIMATE CHANGE ON MARINE ECOSYSTEMS

Beaugrand, Grégory

Document type :

Autre communication scientifique (congrès sans actes - poster - séminaire...): Communication dans un congrès avec actes

Title :

IMPACT OF CLIMATE CHANGE ON MARINE ECOSYSTEMS

Author(s) :

Beaugrand, Grégory [Auteur]

Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]

Conference title :

ClimECO2 International Summer School - Oceans, Marine Ecosystems, and Society facing Climate Change

City :

Brest

Country :

France

Start date of the conference :

2010-08-23

HAL domain(s) :

Planète et Univers [physics]/Sciences de la Terre/Océanographie

English abstract : [en]

Climate change is unambiguous and its effects are clearly detected in all functional units of the Earth System. This course presents new analyses of sea surface temperature changes and show that climate change is affecting ...
Show more >Climate change is unambiguous and its effects are clearly detected in all functional units of the Earth System. This course presents new analyses of sea surface temperature changes and show that climate change is affecting hydrodynamics and the pelagic biodiversity of the North Atlantic Ocean. Changes are seen from phytoplankton to zooplankton to fish and are modifying the dominance of species and the structure, the diversity and the functioning of marine ecosystems. Changes also range from phenological to biogeographical shifts and have involved in some regions of the Atlantic abrupt ecosystem shifts. These alterations reflect an adaptation of pelagic ecosystems to a warmer temperature regime. Mechanisms are complex because they are nonlinear exhibiting tipping points and varying in space and time. Sensitivity of organisms to temperature changes is high, implicating that a small temperature modification can have sustained ecosystem effects. Implications of these changes for biogeochemical cycles are discussed.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Non spécifiée

Popular science :

Non

Comment :

Invited Speaker

Collections :

Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL

IMPACT OF CLIMATE CHANGE ON MARINE ECOSYSTEMS BibTeX CSV Excel RIS

IMPACT OF CLIMATE CHANGE ON MARINE ECOSYSTEMS

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