Research

Past and ongoing research

Plant reproduction

What are the triggers of plant reproduction? Why plants can produce years with heavy crops and then nothing? Why and how plants are synchronized when they reproduce?

Journé V., Szymkowiak J., Foest J., Kelly D., Hacket-Pain A., Bogdziewicz M. (in revision) Maximizing the Moran effect: summer solstice orchestrates the subcontinental-scale synchrony of mast seeding.

Bogdziewicz M., Journé V., Hacket-Pain A., Szymkowiak J. (2023). Mechanisms driving interspecific variation in regional synchrony of trees reproduction. Ecology Letters

Trade-off and resource allocation

Is there any trade-off between growth and reproduction? Are carbohydrates involved in plant reproduction?

Organisms can not allocate all the resources to growth, survival, and reproduction at the same time. Preferences of allocation into one component, or one trait would affect other potentially visible or non-visible traits, and components.

Journé V., Cubaynes S., Papaïx J., Buoro M. (2022). Detection of Eco‐Evolutionary Processes in the Wild: Evolutionary Trade‐Offs Between Life History Traits.

Journé V., Kunstler G. Clark J S et al.. (in revision). The relationship between maturation size and maximum tree size from tropical to boreal climates.

New synthesis

Are there any patterns in tree fecundity? What are the differences in seed production variation across plant species?

I am interested in testing some ecological theories with a large dataset

Journé V., Hacket-Pain A., Bogdziewicz M. (2023) Evolution of masting in plants is linked to investment in low tissue mortality. Nature Communications

Journé V., Courbaud B., Kunstler G., Qiu T., Clark J.S. et al (2022). Globally, tree fecundity exceeds productivity gradients. Ecology Letters.

Forecasting and models

Living on earth is living in a pot, and oceans and forests can help to absorb some carbon.
And plant reproduction is an important aspect of forest resilience, but we are not aware of its implication in forest models. I am trying to understand limits of some currently used models and how we could improve them to better anticipate the effect of climate

Journé V., Hacket-Pain A., Oberklammer I., Pesendorfer M., Bogdziewicz M. (2023). Forecasting seed production in perennial plants: identifying challenges and charting a path forward. New Phytologist

Journé V., Barnagaud JY, Bernard C., Crochet P-A, Morin X (2019). Correlative climatic niche models predict real and virtual species distributions equally well.