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Helene MORLON

Researcher
Research Director
Biology
biodiversity modeling, phylogenetics, macroecology, macroevolution, biogeography
ENS-PSL
Department of Biology
Published on
13 October 2021
, updated on
11 January 2022
heleneMORLON
6ème étage, bureau 607b
46, rue d'Ulm 75230 Paris cedex 05
01 44 323535
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As a biodiversity mathematician, I study the diversification of life using present-day data

Field of research

My research team is interested in understanding the ecological and evolutionary processes that gave rise to biological diversity as we see it around us today. We aim to reconstruct past variations in biodiversity from present-day data, and to assess how past environnemental changes influenced the diversification of life. We combine approaches from mathematics, bioinformatics and statistics with global scale data compilation to tackle questions ranging from macroecology and macroevolution to community assembly, biogeography, and conservation. Two key components of our research are stochastic processes and molecular phylogenies, which we use too study speciation, extinction, dispersal, phenotypic evolution and community assembly. We work closely with mathematicians, phylogeneticists, and é-field ecologists.

Publications

Sommeria-Klein, G., Watteaux, R., Ibarbalz, F.M., Pierella Karlusich, J.J.; Iudicone, D.; Bowler, C., Morlon, H. (in press) Global drivers of eukaryotic plankton biogeography in the sunlit ocean Science

Maliet, O., Hartig, F., Morlon, H. (2019) A model with many small shifts for estimating species-specific diversification rates Nature Ecology and Evolution 3: 1086-1092

Clavel, J., Aristide, L., Morlon, H. (2018) A penalized likelihood framework for high-dimensional phylogenetic comparative methods and an application to new-world monkeys brain evolution Systematic Biology 68: 93-116

Lewitus, E., Bittner, L., Malviya, S., Bowler, C., Morlon, H. (2018) Clade-specific diversification dynamics in marine diatoms since the Jurassic Nature Ecology and Evolution 2: 1715-1723

Clavel, J., Morlon, H. (2017) Accelerated body-size evolution during cold climatic periods in the Cenozoic Proceedings of the National Academy of Sciences 114: 4183-4188

Morlon, H., Lewitus, E., Condamine, F.L., Manceau, M., Clavel, J., Drury, J. RPANDA: an R package for macroevolutionary analyses on phylogenetic trees (2016) Methods in Ecology & Evolution 7: 589–597

Morlon, H. (2014) Phylogenetic approaches for studying diversification Ecology Letters 17: 508-525

Moen, D.S., Morlon, H. (2014) Why does diversification slow down? Trends in      Ecology and Evolution 29: 190-197

Rolland, J., Condamine, F.L., Jiguet, F., Morlon, H. (2014) Faster speciation and reduced extinction in the tropics explain the mammalian latitudinal diversity gradient PloS Biology 12(1): e1001775

Morlon, H., Parsons, T.L., Plotkin, J.B. (2011) Reconciling molecular phylogenies with the fossil record  Proceedings of the National Academy of Sciences 108: 16327-16332

Publications de Helene MORLON