Télécharger - Région Bretagne

De la COP21 à la COP
régionale
Guyane, les Nouragues, © G Boeuf, 2011
Nouvelle Calédonie, récif du Grand Sud, © G Boeuf, 2009
Can a collapse of global civilization be avoided?
Paul R. Ehrlich and Anne H. Ehrlich
Proc. R. Soc. B 2013 280, 20122845,
published 9 January 2013
Gilles Boeuf, UPMC, MEEM, MNHN, Paris, St Malo, 9 mars 2017
© G Boeuf, 2016
© G Boeuf, 2016

Dans le changement global, les grandes
questions environnementales
Energie,
Eau,
Biodiversité,
Climat
Pollution,
Les interactions de l’humain avec la nature
© G Boeuf, 2011
Can a collapse of global civilization be avoided?
Paul R. Ehrlich and Anne H. Ehrlich
Proc. R. Soc. B 2013 280, 20122845, published 9 January 2013
© G Boeuf, 2015

© Chambres d’agriculture de Bretagne, 2017
© Ar C’hannad, 2016
© G Boeuf, 1975

«…Most organisms smaller than 1 mm occur worldwide wherever their required habitats are realised. This is a consequence of
ubiquitous dispersal driven by huge population sizes . Metapopulations of microbial eukaryotes are cosmopolitan…” Finlay & Fenchel
2004. “…Current evidence confirms that, as proposed by the Baas-Becking hypothesis, ‘the environment selects’ and is, in part, responsible for
spatial variation in microbial diversity. However, recent studies also dispute the idea that ‘everything is everywhere’… ». .Martiny et al., 2006.
P Lebaron, 2002

Ocean and human gut core functions
have a large overlap
More abundant in the human gut:
•defense mechanisms, signal transduction, and carbohydrate transport and metabolism
More abundant in the ocean:
•transport mechanisms in general (coenzyme, lipid, nucleotide, amino acids) and
energy production (including photosynthesis)
© Tara Ocean, May 2015