Can we detect oceanic biodiversity hotspots from space ?

Document type :

Article dans une revue scientifique

DOI :

10.1038/ismej.2013.72

Title :

Can we detect oceanic biodiversity hotspots from space ?

Author(s) :

de Monte, Silvia [Auteur]
Laboratoire Ecologie et évolution
Soccodato, Alice [Auteur]
Couplage physique-biogéochimie-carbone [PHYBIOCAR]
Alvain, Séverine [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
d'Ovidio, Francesco [Auteur]
Couplage physique-biogéochimie-carbone [PHYBIOCAR]

Journal title :

ISME Journal

Pages :

2054–2056

Publisher :

Nature Publishing Group

Publication date :

2013-05-02

ISSN :

1751-7362

HAL domain(s) :

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

English abstract : [en]

Understanding the variability of marine biodiversity is a central issue in microbiology. Current observational programs are based on in situ studies, but their implementation at the global scale is particularly challenging, ...
Show more >Understanding the variability of marine biodiversity is a central issue in microbiology. Current observational programs are based on in situ studies, but their implementation at the global scale is particularly challenging, owing to the ocean extent, its temporal variability and the heterogeneity of the data sources on which compilations are built. Here, we explore the possibility of identifying phytoplanktonic biodiversity hotspots from satellite. We define a Shannon entropy index based on patchiness in ocean color bio-optical anomalies. This index provides a high resolution (1 degree) global coverage. It shows a relation to temperature and mid-latitude maxima in accordance with those previously evidenced in microbiological biodiversity model and observational studies. Regional maxima are in remarkable agreement with several known biodiversity hotspots for plankton organisms and even for higher levels of the marine trophic chain, as well as with some in situ planktonic biodiversity estimates (from AMT Q1 cruises). These results encourage to explore marine biodiversity with a coordinated effort of the molecular, ecological and remote sensing communities.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Rétroactions écologie-climat dues à l'évolution de la taille et de la forme du phytoplancton

Collections :

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

Source :

Harvested from HAL

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