Christian Défarge

Defining organominerals: Comment on ‘Defining biominerals and organominerals: Direct and indirect indicators of life’ by Perry et al. (2009)

Défarge, Christian, Gautret, Pascale, Reitner, Joachim, Trichet, Jean

The paper by Perry et al. (2007, Defining biominerals and organominerals: Direct and indirect indicators of life, Sedimentary Geology, 201, 157-179) proposes to introduce “the new term...

Defining organominerals: Comment on ‘Defining biominerals and organominerals: Direct and indirect indicators of life’ by Perry et al. (2009)

Défarge, Christian, Gautret, Pascale, Reitner, Joachim, Trichet, Jean

The paper by Perry et al. (2007, Defining biominerals and organominerals: Direct and indirect indicators of life, Sedimentary Geology, 201, 157-179) proposes to introduce “the new term...

Microbiotic soil crusts in the Sahel of Western Niger and their influence on Soil POROSITY and water dynamics (2009)

Malam Issa, Oumarou, Défarge, Christian, Trichet, Jean, Valentin, C., Rajot, J.L.

Microbiotic soil crusts are common features of the surface of fallow land in Western Niger. We investigated the interaction between these microbial covers and the porosity and water dynamics of soils...

Microbiotic soil crusts in the Sahel of Western Niger and their influence on Soil POROSITY and water dynamics (2009)

Malam Issa, Oumarou, Défarge, Christian, Trichet, Jean, Valentin, C., Rajot, J.L.

Microbiotic soil crusts are common features of the surface of fallow land in Western Niger. We investigated the interaction between these microbial covers and the porosity and water dynamics of soils...

Reply to comments on defining biominerals and organominerals: Direct and indirect indicators of life [Perry et al., Sedimentary Geology, 201, 157-179] (2009)

Défarge, Christian, Gautret, Pascale, Reitner, Joachim, Trichet, Jean

The best reply to Perry and Sephton's (2009) reply to comments by Altermann et al. (2009) and Défarge et al. (2009) on the paper by Perry et al. (2007, Defining biominerals and organominerals:...

Reply to comments on defining biominerals and organominerals: Direct and indirect indicators of life [Perry et al., Sedimentary Geology, 201, 157-179] (2009)

Défarge, Christian, Gautret, Pascale, Reitner, Joachim, Trichet, Jean

The best reply to Perry and Sephton's (2009) reply to comments by Altermann et al. (2009) and Défarge et al. (2009) on the paper by Perry et al. (2007, Defining biominerals and organominerals:...

Experimental silicification of the extremophilic Archaea Pyrococcus abyssi and Methanocaldococcus jannaschii: applications in the search for evidence of life in early Earth and extraterrestrial rocks (2009)

Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Bienvenu, N., Le Romancer, M., ...

Hydrothermal activity was common on the early Earth and associated micro-organisms would most likely have included thermophilic to hyperthermophilic species. 3.5–3.3 billion-year-old,...

Experimental silicification of the extremophilic Archaea Pyrococcus abyssi and Methanocaldococcus jannaschii: applications in the search for evidence of life in early Earth and extraterrestrial rocks (2009)

Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Bienvenu, N., Le Romancer, M., ...

Hydrothermal activity was common on the early Earth and associated micro-organisms would most likely have included thermophilic to hyperthermophilic species. 3.5–3.3 billion-year-old,...

How to assess cutover Peatland regeneration with combined organic matter indicators ? (2008)

Gogo, Sébastien, Laggoun-Défarge, Fatima, Comont, Laure, Défarge, Christian, Disnar, Jean-Robert, Gautret, Pascale, ...

When restored, cutover peatlands can favour biodiversity and carbon (C) sequestration. Within the EU program RECIPE, we aimed to identify combinations of site physico-chemical conditions, vegetation...

How to assess cutover Peatland regeneration with combined organic matter indicators ? (2008)

Gogo, Sébastien, Laggoun-Défarge, Fatima, Comont, Laure, Défarge, Christian, Disnar, Jean-Robert, Gautret, Pascale, ...

When restored, cutover peatlands can favour biodiversity and carbon (C) sequestration. Within the EU program RECIPE, we aimed to identify combinations of site physico-chemical conditions, vegetation...

Effects of the inoculation of cyanobacteria on the microstructure and the structural stability of a tropical soil. (2007)

Malam Issa, Oumarou, Défarge, Christian, Le Bissonais, Yves, Marin, Béatrice, Duval, Odile, Bruand, Ary, ...

Cyanobacteria are widespread photosynthetic microorganisms among which some are able to fix atmospheric nitrogen. We investigated the impact of indigenous cyanobacteria strains (Nostoc) inoculation...

Organic insights into the bioprecipitation of carbonates in photosynthetic biofilms. A case study from La Laguna de Chiprana hypersaline lake (Spain). (2007)

Jacob, Jérémy, Gautret, Pascale, Défarge, Christian, Albéric, Patrick, Baillif, Patrick, Lottier, Nathalie

Within complex systems such as microbial mats formed in benthic environments, calcium carbonates are often associated with photosynthetic biofilms. This biocalcification regulates CO2, calcium and...

Dynamic of dissolved organic matter and trace elements in a steady state lake bottom layer : molecular size fractionation. (2007)

Albéric, Patrick, Jezequel, Didier, Viollier, Eric, Défarge, Christian, Gautret, Pascale

Dissolved organic matter (DOM) in aquatic systems interacts with most processes including redox reactions, trace elements complexation, sorption and sedimentation. The complex nature of DOM in...

Dynamic of dissolved organic matter and trace elements in a steady state lake bottom layer : molecular size fractionation. (2007)

Albéric, Patrick, Jezequel, Didier, Viollier, Eric, Défarge, Christian, Gautret, Pascale

Dissolved organic matter (DOM) in aquatic systems interacts with most processes including redox reactions, trace elements complexation, sorption and sedimentation. The complex nature of DOM in...

Organic insights into the bioprecipitation of carbonates in photosynthetic biofilms. A case study from La Laguna de Chiprana hypersaline lake (Spain). (2007)

Jacob, Jérémy, Gautret, Pascale, Défarge, Christian, Albéric, Patrick, Baillif, Patrick, Lottier, Nathalie

Within complex systems such as microbial mats formed in benthic environments, calcium carbonates are often associated with photosynthetic biofilms. This biocalcification regulates CO2, calcium and...

Effects of the inoculation of cyanobacteria on the microstructure and the structural stability of a tropical soil. (2007)

Malam Issa, Oumarou, Défarge, Christian, Le Bissonais, Yves, Marin, Béatrice, Duval, Odile, Bruand, Ary, ...

Cyanobacteria are widespread photosynthetic microorganisms among which some are able to fix atmospheric nitrogen. We investigated the impact of indigenous cyanobacteria strains (Nostoc) inoculation...

Mécanismes de précipitation de carbonate de calcium dans les biofilms photosynthétiques (2006)

Gautret, Pascale, De Wit, Rutger, Albéric, Patrick, Défarge, Christian, Masseret, Estelle, Bouvier, Thierry

La précipitation de carbonate de calcium dans les systèmes benthiques est souvent associée aux biofilms photosynthétiques, et notamment observée au sein de structures d'une grande complexité...

Experimental silicification of extremophilic Archaea, Methanococcus jannaschii. Applications for the search of evidence of life in early Earth and extraterrestrial rocks. (2006)

Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian

Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...

Experimental silicification of extremophilic Archaea, Methanococcus jannaschii. Applications for the search of evidence of life in early Earth and extraterrestrial rocks. (2006)

Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian

Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...

Mécanismes de précipitation de carbonate de calcium dans les biofilms photosynthétiques (2006)

Gautret, Pascale, De Wit, Rutger, Albéric, Patrick, Défarge, Christian, Masseret, Estelle, Bouvier, Thierry

La précipitation de carbonate de calcium dans les systèmes benthiques est souvent associée aux biofilms photosynthétiques, et notamment observée au sein de structures d'une grande complexité...

Experimental silicification of extremophilic Archaea, Methanococcus jannaschii. Applications for the search of evidence of life in early Earth and extraterrestrial rocks. (2006)

Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian

Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...

Mécanismes de précipitation de carbonate de calcium dans les biofilms photosynthétiques (2006)

Gautret, Pascale, De Wit, Rutger, Albéric, Patrick, Défarge, Christian, Masseret, Estelle, Bouvier, Thierry

La précipitation de carbonate de calcium dans les systèmes benthiques est souvent associée aux biofilms photosynthétiques, et notamment observée au sein de structures d'une grande complexité...

Experimental silicification of extremophilic Archaea, Methanococcus jannaschii. Applications for the search of evidence of life in early Earth and extraterrestrial rocks. (2006)

Orange, François, Westall, Francès, Disnar, Jean-Robert, Prieur, D., Défarge, Christian

Early life forms on Earth included chemolithotrophic organisms and such organisms would probably have existed on Mars, if life was present on that planet. Since the earliest life forms known to date...

Mécanismes de précipitation de carbonate de calcium dans les biofilms photosynthétiques (2006)

Gautret, Pascale, De Wit, Rutger, Albéric, Patrick, Défarge, Christian, Masseret, Estelle, Bouvier, Thierry

La précipitation de carbonate de calcium dans les systèmes benthiques est souvent associée aux biofilms photosynthétiques, et notamment observée au sein de structures d'une grande complexité...

Phytoplankton composition and organic matter organization of mucous aggregates by means of light and cryo-scanning electron microscopy. (2005)

Kovac, Nives, Mozetic, Patricija, Trichet, Jean, Défarge, Christian

Two types of northern Adriatic mucous macroaggregates—surface and cloud-like—collected in June 2000 at the sea surface and at the depth of the pycnocline, respectively, were studied by light and...

Phytoplankton composition and organic matter organization of mucous aggregates by means of light and cryo-scanning electron microscopy. (2005)

Kovac, Nives, Mozetic, Patricija, Trichet, Jean, Défarge, Christian

Two types of northern Adriatic mucous macroaggregates—surface and cloud-like—collected in June 2000 at the sea surface and at the depth of the pycnocline, respectively, were studied by light and...

Structure and Dynamics of Exopolymers in an Intertidal Diatom Biofilm. (2005)

Stal, Lucas J., Défarge, Christian

Diatom biofilms growing at the surface of the intertidal mudflat of Marennes Oléron, France, were incubated for 48 h in the laboratory under simulated conditions of high- and low tide (immersed and...

Structure and Dynamics of Exopolymers in an Intertidal Diatom Biofilm. (2005)

Stal, Lucas J., Défarge, Christian

Diatom biofilms growing at the surface of the intertidal mudflat of Marennes Oléron, France, were incubated for 48 h in the laboratory under simulated conditions of high- and low tide (immersed and...

Phytoplankton composition and organic matter organization of mucous aggregates by means of light and cryo-scanning electron microscopy. (2005)

Kovac, Nives, Mozetic, Patricija, Trichet, Jean, Défarge, Christian

Two types of northern Adriatic mucous macroaggregates—surface and cloud-like—collected in June 2000 at the sea surface and at the depth of the pycnocline, respectively, were studied by light and...

Structure and Dynamics of Exopolymers in an Intertidal Diatom Biofilm. (2005)

Stal, Lucas J., Défarge, Christian

Diatom biofilms growing at the surface of the intertidal mudflat of Marennes Oléron, France, were incubated for 48 h in the laboratory under simulated conditions of high- and low tide (immersed and...

Structure and Dynamics of Exopolymers in an Intertidal Diatom Biofilm. (2005)

Stal, Lucas J., Défarge, Christian

Diatom biofilms growing at the surface of the intertidal mudflat of Marennes Oléron, France, were incubated for 48 h in the laboratory under simulated conditions of high- and low tide (immersed and...

Characterization of model soil colloids by cryo-scanning electron microscopy. (2004)

Nègre, M., Leone, P ., Trichet, Jean, Défarge, Christian, Boero, V., Gennari, M.

The cryo-scanning electron microscopy (cryo-SEM) consists of the SEM examination of samples whose microstructure has been fixed by plunge-freezing into a liquid with a high thermal conductivity, such...

Effet des cyanobactéries sur les propriétés physiques d'un sol sub-tropical (2004)

Duval, Odile, Le Bissonais, Y., Annerman, M., Gaillard, H., Renaux, B., Nordenberg, S., ...

La croissance de souches indigènes de cyanobactéries sur des sols pauvres dans les régions semi-arides de l'Afrique Australe pourrait être une solution pour remédier aux rendements faibles et à...

Biominéralisation vs Organominéralisation: Comparaison des processus de minéralisation dans la matière organique, vivante et "morte" (2004)

Trichet, Jean, Défarge, Christian, Bourrat, Xavier

Les dépôts sédimentaires et les organismes fossilisés offrent de nombreux modèles où des minéralisations – essentiellement carbonatées et phosphatées - se développent au sein de matières...

Biominéralisation vs Organominéralisation: Comparaison des processus de minéralisation dans la matière organique, vivante et "morte" (2004)

Trichet, Jean, Défarge, Christian, Bourrat, Xavier

Les dépôts sédimentaires et les organismes fossilisés offrent de nombreux modèles où des minéralisations – essentiellement carbonatées et phosphatées - se développent au sein de matières...

Effet des cyanobactéries sur les propriétés physiques d'un sol sub-tropical (2004)

Duval, Odile, Le Bissonais, Y., Annerman, M., Gaillard, H., Renaux, B., Nordenberg, S., ...

La croissance de souches indigènes de cyanobactéries sur des sols pauvres dans les régions semi-arides de l'Afrique Australe pourrait être une solution pour remédier aux rendements faibles et à...

Characterization of model soil colloids by cryo-scanning electron microscopy. (2004)

Nègre, M., Leone, P ., Trichet, Jean, Défarge, Christian, Boero, V., Gennari, M.

The cryo-scanning electron microscopy (cryo-SEM) consists of the SEM examination of samples whose microstructure has been fixed by plunge-freezing into a liquid with a high thermal conductivity, such...

Biominéralisation vs Organominéralisation: Comparaison des processus de minéralisation dans la matière organique, vivante et "morte" (2004)

Trichet, Jean, Défarge, Christian, Bourrat, Xavier

Les dépôts sédimentaires et les organismes fossilisés offrent de nombreux modèles où des minéralisations – essentiellement carbonatées et phosphatées - se développent au sein de matières...

Effet des cyanobactéries sur les propriétés physiques d'un sol sub-tropical (2004)

Duval, Odile, Le Bissonais, Yves, Annerman, Marcus, Gaillard, H., Renaux, B., Nordenberg, S., ...

La croissance de souches indigènes de cyanobactéries sur des sols pauvres dans les régions semi-arides de l'Afrique Australe pourrait être une solution pour remédier aux rendements faibles et à...

Characterization of model soil colloids by cryo-scanning electron microscopy. (2004)

Nègre, M., Leone, P ., Trichet, Jean, Défarge, Christian, Boero, V., Gennari, M.

The cryo-scanning electron microscopy (cryo-SEM) consists of the SEM examination of samples whose microstructure has been fixed by plunge-freezing into a liquid with a high thermal conductivity, such...

Effet des cyanobactéries sur les propriétés physiques d'un sol sub-tropical (2004)

Duval, Odile, Le Bissonais, Yves, Annerman, Marcus, Gaillard, H., Renaux, B., Nordenberg, S., ...

La croissance de souches indigènes de cyanobactéries sur des sols pauvres dans les régions semi-arides de l'Afrique Australe pourrait être une solution pour remédier aux rendements faibles et à...

Biominéralisation vs Organominéralisation: Comparaison des processus de minéralisation dans la matière organique, vivante et "morte" (2004)

Trichet, Jean, Défarge, Christian, Bourrat, Xavier

Les dépôts sédimentaires et les organismes fossilisés offrent de nombreux modèles où des minéralisations – essentiellement carbonatées et phosphatées - se développent au sein de matières...

Characterization of model soil colloids by cryo-scanning electron microscopy. (2004)

Nègre, M., Leone, P ., Trichet, Jean, Défarge, Christian, Boero, V., Gennari, M.

The cryo-scanning electron microscopy (cryo-SEM) consists of the SEM examination of samples whose microstructure has been fixed by plunge-freezing into a liquid with a high thermal conductivity, such...

Mg-Calcites and dolomite in the Brejo do Espinho lagoon, Rio de Janeiro. (2003)

Anjos, A.P.A., Sifeddine, Abdelfettah, Pachineelam, S.R., Défarge, Christian, Turcq, Bruno

The aim of this research is to study the carbonate sedimentation in a hypersaline coastal (Brejo do Espinho) where dolomite precipitation can be expected. The study allowed to make a general...

Mg-Calcites and dolomite in the Brejo do Espinho lagoon, Rio de Janeiro. (2003)

Anjos, A.P.A., Sifeddine, Abdelfettah, Pachineelam, S.R., Défarge, Christian, Turcq, Bruno

The aim of this research is to study the carbonate sedimentation in a hypersaline coastal (Brejo do Espinho) where dolomite precipitation can be expected. The study allowed to make a general...

Mg-Calcites and dolomite in the Brejo do Espinho lagoon, Rio de Janeiro. (2003)

Anjos, A.P.A., Sifeddine, Abdelfettah, Pachineelam, S.R., Défarge, Christian, Turcq, Bruno

The aim of this research is to study the carbonate sedimentation in a hypersaline coastal (Brejo do Espinho) where dolomite precipitation can be expected. The study allowed to make a general...

Mg-Calcites and dolomite in the Brejo do Espinho lagoon, Rio de Janeiro. (2003)

Anjos, A.P.A., Sifeddine, Abdelfettah, Pachineelam, S.R., Défarge, Christian, Turcq, Bruno

The aim of this research is to study the carbonate sedimentation in a hypersaline coastal (Brejo do Espinho) where dolomite precipitation can be expected. The study allowed to make a general...

Role of a cyanobacterial cover on structural stability of sandy soils in the Sahelian part of western Niger (2001)

Malam Issa, O., Le Bissonais, Y., Défarge, Christian, Trichet, Jean

Microbiotic soil crusts, mostly formed by cyanobacteria, are widespread on the surface of fallow land in western Niger. They lie adjacent to completely bare soils. We have investigated the structural...

Christmas Island lagoonal lakes, models for the deposition of carbonate–evaporite–organic laminated sediments (2001)

Trichet, Jean, Défarge, Christian, Tribble, J., Tribble, G.W., Sansone, F.J.

The atoll of Christmas Island (now known as Kiritimati) in the Kiribati Republic (Central Pacific) lies at about 2°N in the intertropical convergence zone. Much of the surface area of the atoll (ca....

Nitrogen fixation by microbial crusts from desiccated Sahelian soils (Niger) (2001)

Malam Issa, O., Stal, Lucas J., Défarge, Christian, Trichet, Jean, Couté, A.

Cyanobacterial crusts developing on the sandy and loamy soils of fallow lands in the Sahel (Niger) were investigated for their potential to fix nitrogen. Three sites were selected in this arid...

Nitrogen fixation by microbial crusts from desiccated Sahelian soils (Niger) (2001)

Malam Issa, O., Stal, Lucas J., Défarge, Christian, Trichet, Jean, Couté, A.

Cyanobacterial crusts developing on the sandy and loamy soils of fallow lands in the Sahel (Niger) were investigated for their potential to fix nitrogen. Three sites were selected in this arid...

Role of a cyanobacterial cover on structural stability of sandy soils in the Sahelian part of western Niger (2001)

Malam Issa, O., Le Bissonais, Y., Défarge, Christian, Trichet, Jean

Microbiotic soil crusts, mostly formed by cyanobacteria, are widespread on the surface of fallow land in western Niger. They lie adjacent to completely bare soils. We have investigated the structural...

Christmas Island lagoonal lakes, models for the deposition of carbonate–evaporite–organic laminated sediments (2001)

Trichet, Jean, Défarge, Christian, Tribble, J., Tribble, G.W., Sansone, F.J.

The atoll of Christmas Island (now known as Kiritimati) in the Kiribati Republic (Central Pacific) lies at about 2°N in the intertropical convergence zone. Much of the surface area of the atoll (ca....

Nitrogen fixation by microbial crusts from desiccated Sahelian soils (Niger) (2001)

Malam Issa, Oumarou, Stal, Lucas J., Défarge, Christian, Trichet, Jean, Couté, A.

Cyanobacterial crusts developing on the sandy and loamy soils of fallow lands in the Sahel (Niger) were investigated for their potential to fix nitrogen. Three sites were selected in this arid...

Role of a cyanobacterial cover on structural stability of sandy soils in the Sahelian part of western Niger (2001)

Malam Issa, Oumarou, Le Bissonais, Yves, Défarge, Christian, Trichet, Jean

Microbiotic soil crusts, mostly formed by cyanobacteria, are widespread on the surface of fallow land in western Niger. They lie adjacent to completely bare soils. We have investigated the structural...

Christmas Island lagoonal lakes, models for the deposition of carbonate–evaporite–organic laminated sediments (2001)

Trichet, Jean, Défarge, Christian, Tribble, J., Tribble, G.W., Sansone, F.J.

The atoll of Christmas Island (now known as Kiritimati) in the Kiribati Republic (Central Pacific) lies at about 2°N in the intertropical convergence zone. Much of the surface area of the atoll (ca....

Role of a cyanobacterial cover on structural stability of sandy soils in the Sahelian part of western Niger (2001)

Malam Issa, Oumarou, Le Bissonais, Yves, Défarge, Christian, Trichet, Jean

Microbiotic soil crusts, mostly formed by cyanobacteria, are widespread on the surface of fallow land in western Niger. They lie adjacent to completely bare soils. We have investigated the structural...

Nitrogen fixation by microbial crusts from desiccated Sahelian soils (Niger) (2001)

Malam Issa, Oumarou, Stal, Lucas J., Défarge, Christian, Trichet, Jean, Couté, A.

Cyanobacterial crusts developing on the sandy and loamy soils of fallow lands in the Sahel (Niger) were investigated for their potential to fix nitrogen. Three sites were selected in this arid...

Christmas Island lagoonal lakes, models for the deposition of carbonate–evaporite–organic laminated sediments (2001)

Trichet, Jean, Défarge, Christian, Tribble, J., Tribble, G.W., Sansone, F.J.

The atoll of Christmas Island (now known as Kiritimati) in the Kiribati Republic (Central Pacific) lies at about 2°N in the intertropical convergence zone. Much of the surface area of the atoll (ca....

A Jurassic counterpart for modern kopara of the Pacific atolls: lagoonal, organic matter-rich, laminated carbonate of Orbagnoux (Jura Mountains, France) (2000)

Tribovillard, N., Trentesaux, A., Trichet, Jean, Défarge, Christian

Two types of laminated sediments are compared in this paper: the Kimmeridgian bituminous laminites of Orbagnoux (French Southern Jura Mountains) and the present-day ‘kopara' of the French Polynesia...

A Jurassic counterpart for modern kopara of the Pacific atolls: lagoonal, organic matter-rich, laminated carbonate of Orbagnoux (Jura Mountains, France) (2000)

Tribovillard, Nicolas, Trentesaux, A., Trichet, Jean, Défarge, Christian

Two types of laminated sediments are compared in this paper: the Kimmeridgian bituminous laminites of Orbagnoux (French Southern Jura Mountains) and the present-day ‘kopara' of the French Polynesia...

A Jurassic counterpart for modern kopara of the Pacific atolls: lagoonal, organic matter-rich, laminated carbonate of Orbagnoux (Jura Mountains, France) (2000)

Tribovillard, Nicolas, Trentesaux, A., Trichet, Jean, Défarge, Christian

Two types of laminated sediments are compared in this paper: the Kimmeridgian bituminous laminites of Orbagnoux (French Southern Jura Mountains) and the present-day ‘kopara' of the French Polynesia...

A Jurassic counterpart for modern kopara of the Pacific atolls: lagoonal, organic matter-rich, laminated carbonate of Orbagnoux (Jura Mountains, France) (2000)

Tribovillard, Nicolas, Trentesaux, A., Trichet, Jean, Défarge, Christian

Two types of laminated sediments are compared in this paper: the Kimmeridgian bituminous laminites of Orbagnoux (French Southern Jura Mountains) and the present-day ‘kopara' of the French Polynesia...

Morphology and microstructure of microbiotic soil crusts on a tiger bush sequence (Niger, Sahel) (1999)

Malam Issa, O., Trichet, Jean, Défarge, Christian, Couté, A., Valentin, C.

Microbiotic crusts resulting from the colonization of soil surfaces by communities of micro-organisms dominated by cyanobacteria, eucaryotic algae or lichens are widespread in arid and semi-arid...

Morphology and microstructure of microbiotic soil crusts on a tiger bush sequence (Niger, Sahel) (1999)

Malam Issa, O., Trichet, Jean, Défarge, Christian, Couté, A., Valentin, C.

Microbiotic crusts resulting from the colonization of soil surfaces by communities of micro-organisms dominated by cyanobacteria, eucaryotic algae or lichens are widespread in arid and semi-arid...

Morphology and microstructure of microbiotic soil crusts on a tiger bush sequence (Niger, Sahel) (1999)

Malam Issa, Oumarou, Trichet, Jean, Défarge, Christian, Couté, A., Valentin, C.

Microbiotic crusts resulting from the colonization of soil surfaces by communities of micro-organisms dominated by cyanobacteria, eucaryotic algae or lichens are widespread in arid and semi-arid...

Morphology and microstructure of microbiotic soil crusts on a tiger bush sequence (Niger, Sahel) (1999)

Malam Issa, Oumarou, Trichet, Jean, Défarge, Christian, Couté, A., Valentin, C.

Microbiotic crusts resulting from the colonization of soil surfaces by communities of micro-organisms dominated by cyanobacteria, eucaryotic algae or lichens are widespread in arid and semi-arid...