Rosine Cartier

JPEG Doctor

Institut Méditerranéen de Biodiversité et d’Ecologie Marine et Continentale (IMBE)
Aix-Marseille Université, UMR AMU / CNRS / IRD / Univ. Avignon
Technopôle Arbois-Méditerranée, Bât. Villemin – BP 80
F-13545 Aix-en-Provence cedex 04, France

e-mail : rosine.cartier@imbe.fr ; cartier@cerege.fr


Biosketch

Lake Allos (Southern Alps)

Cumulative effects of climate change and human activities have already resulted in major changes in physico-chemistry and biological communities of many lakes.

Therefore, understanding complex interactions between aquatic systems, climate and watershed dynamics is a key point to improve conservation strategies.

Palaeolimnological studies allow investigation of lake ecosystem responses (progressive changes, abrupt regime shits) with regard to natural and anthropogenic disturbances over long timescales.

My researches use two main approaches to reconstruct past lake trajectories including the study of (1) aquatic bioindicators assemblages (diatoms and ostracods) and (2) palaeohydrology using oxygen isotope records.

Lake Petit (Southern Alps)

Abstract

Long-term ecological trajectories of alpine lakes since 13 500 cal. BP in the Mediterranean Alps (Mercantour national park, France) : between climate forcing and plurimillenial human pressure

Diatom (SEM)

The thesis is devoted to the reconstruction of long-term changes in two lacustrine ecosystems in the Southern Alps. This study aims at assessing (1) the lateglacial-holocene variability of water physico-chemistry, lake levels and aquatic species dynamics ; and (2) the environmental responses of the lacustrine ecosystem to external forcing (watershed and climate changes), with the study of Lake Allos (2200 m a.s.l in the Southern Alps, Mercantour Massif, 42 meters deep) and the Lake Petit (2200 m a.s.l in the Southern Alps, Mercantour Massif, 7 meters deep). The two sedimentary cored profiles provided a detailed record of the past dynamics of the lacustrine ecosystems since 13.500 cal. BP.

An integrative approach was carried out including (1) the study of fossils of aquatic bioindicators species (diatoms and ostracods) informing about changes in lacustrine living conditions ; (2) the analysis of oxygen isotopes recorded by these aquatic fossils tracing a palaeohydrological signal ; (3) a multiproxy comparison linking the aquatic environment with changes in watershed dynamics.

These results integrated into a rich multidisciplinary framework evidenced the major role of erosion processes and changes in vegetation cover as factors triggering lake responses to disturbance, with concomitant changes in aquatic communities and trophic levels at several timescales. The different geological settings and lake morphologies have also played a significant role, modulating changes in benthic and planktonic aquatic communities over long time periods marked by erosion of carbonates, silicates or pH changes. Finally, oxygen isotopes records allow to trace for the first time palaeohydrological changes in the region : this innovative approach represents an original outcome for reconstructing a reference past climate for the Southern Alps.

Publications et communications orales

Research articles in peer-reviewed international journal

(2015) CARTIER R., BRISSET E., PAILLES C., GUITER F., SYLVESTRE F., RUAUDEL F., ANTHONY J. E., MIRAMONT C., 2015. 5000 years of lacustrine ecosystem changes from Lake Petit (Southern Alps, 2200 m a.s.l.) : regime shift and resilience of algal communities. The Holocene, 25, (8), p. 1231-1245. IF : 3.8.
(2014) BRISSET E., MIRAMONT C., GUITER F., ARNAUD F., ANTHONY E., DELHON C., GUIBAL F., CARTIER R., POHER Y., CHAUMILLON E., 2014. Données nouvelles sur la chronologie de la déglaciation dans la vallée du Haut Verdon (Lac d’Allos, Alpes Françaises du Sud). Quaternaire. 2014. 25(2), p. 145-153. Citation : 1. IF : 1.02013

Research reports

(2013) MIRAMONT C., BRISSET E., CARTIER R., GUITER F., MOCCI F., POHER Y., PONEL P., TROUSSIER T., 2013. Quand l’homme et le climat façonnent la montagne méridionale. Le Lac d’Allos : une histoire du Détritisme, des Instabilités Climatiques et des Impacts Anthropiques. Rapport de réalisation LADICIA, 184 p.
(2013) GUITER F., MIRAMONT C., BRISSET E., CARTIER R., DELHON C., POHER Y., PONEL P., 2013. Étude de l’usage et de l’occupation du sol du territoire Mercantour. Rapport final, Lot 1 – Taches 1 et 2, Parc National du Mercantour, 142 p.
(2012) TESSIER B., DEBRET M., DURAND A., HERMIER G., JARDANI A., LAIGNEL B., LESUEUR P., SEBAG B., SECHI S., SIMON M., ATTIBA C., AYANG NZAME L., CARTIER R., 2012. Impacts des crises climatiques sur la morphologie et la sédimentation dans l’estuaire de la Seine au cours des derniers millénaires. Rapport de réalisation, GIP Seine-Aval, 22 p.

International congress

(2016) CARTIER R., BRISSET E., SYLVESTRE F., GUITER F., PAILLES C., MIRAMONT C., 2016. Long-term aquatic dynamics of alpine lakes (L. Allos and Petit, 2200 m a.s.l) during The Holocene and their close links with terrestrial ecosystems. SFEcology, International Conference of Ecological Sciences, Marseille, France.
(2016) CARTIER R., SYLVESTRE F., PAILLES C., BRISSET E., GUITER F., MIRAMONT C., 2016. Long-term evolution of the high altitude Lake Allos (Southern Alps, 2200 m a.s.l) since 13,500 cal. BP revealed by diatom assemblages. 24th International Diatom Symposium ? Québec City, Canada.
(2015) CARTIER R., BRISSET E., PAILLES C., GUITER F., SYLVESTRE F., MIRAMONT C., 2015. Long-term ecological dynamics of an alpine lacustrine ecosystem during the Holocene in the French Alps (Lake Petit, 2200 m a.s.l.) : regime shift and resilience of algal communities. Our Common Future Under Climate Change, COP21, Paris, France.
(2015) BRISSET E., GUITER F., MIRAMONT C., TROUSSIER T., POHER Y., CARTIER R., ANTHONY E., 2015. How humans feed flood : lessons from the past. Our Common Future Under Climate Change, COP21, Paris, France.
(2015) CARTIER R., BRISSET E., PAILLES C., GUITER F., SYLVESTRE F., MIRAMONT C., 2015. Terrestrial and lacustrine ecosystem trajectories and thresholds over the last 5000 years : the example of Lake Petit (2200 m a.s.l., Mediterranean Alps). Aquatic Transition, Nottingham, United Kingdom.
(2012) BRISSET E., CARTIER R., GUITER F., MIRAMONT C., GUEDRON S., ANTHONY E., BEAULIEU de J.-L., DELHON C., ARNAURD F., PAILLES C., SYLVESTRE F., POULENARD J., MEUNIER J.-D., SONZOGNI C., 2012. Using palaeobotanical and geochemical investigations to disentangle complex relations between human and landscape : The lacustrine record of Lake Petit. XIII IPC, Tokyo, Japan.

National congress

(2016) BRISSET E., GUITER F., MIRAMONT C., TROUSSIER T., ARNAUD F., POHER Y., CARTIER R., SABATIER P., ANTHONY E. J., 2015. La variabilité holocène des crues torrentielles en montagne : un éclairage donné par l’étude micro-sédimentologique et pollinique des sédiments du lac d’Allos (2200 m, Alpes du Sud). 15ème congrès de l’ASF. Chambery, France.
(2015) BRISSET E., GUITER F., MIRAMONT C., TROUSSIER T., ARNAUD F., POHER Y., CARTIER R., SABATIER P., ANTHONY E. J., 2015. La variabilité holocène des crues torrentielles en montagne : un éclairage donné par l’étude micro-sédimentologique et pollinique des sédiments du lac d’Allos (2200 m, Alpes du Sud). 15ème congrès de l’ASF. Chambery, France.
(2013) CARTIER R., SYLVESTRE F., GUITER F., BRISSET E., PAILLES C., MIRAMONT C., 2013. Apports des diatomées fossiles à l’histoire paléoenvironnementale des lacs d’altitude du massif du Mercantour (France) : premiers résultats. 32ème Colloque de l’ADLaF - 7th CE-diatom meeting, Thonon-les-bains, France.

Diffusion to broader audience

(2016) CARTIER R., BRISSET E., SYLVESTRE F., GUITER F., PAILLES C., MIRAMONT C., 2016. Evolution à long-terme du lac d’Allos en lien avec l’histoire de son bassin versant depuis 13,500 ans (2230 m d’altitude, Massif du Mercantour). CLIMALPSUD (“climate change in the Southern Alps, awareness and adaptation”). CRIGE Paca, Barcelonnette, France. Communication book and public presentation.
(2013) MIRAMONT C., BRISSET E., GUITER F., PONEL P., MOCCI F., CARTIER R., POHER Y., TROUSSIER T., DAMBRINE E., CHAUMILLON E., ARNAUD F. Public conference on Lake Allos palaeo-landscape, France.