Mathieu Millan

Seminar of Mathieu Millan

“On the relationships between plant architecture, ontogeny andecological functions in savanna woody species”

Open ecosystems, such as savannas, are shaped and maintained by disturbances, for example fire and herbivory. In such ecosystems, plants are exposed to regular biomass loss, preventing the regular course of growth. Thus, it is difficult to understand how they build their bodies, how and when they invest their biomass in their different parts, when they reach their flowering onset, and how their population dynamics works. As the growth process is often interrupted and altered, the use of size-related traits, such as classic plant height and stem diameter, has limited utility in understanding the processes involved in coping with disturbances. An alternative tool to size classes is the use of developmental stages,like seedling, sapling, adult, senescent, etc. In this presentation, I will show how plant architecture (whole plant approach based on morphogenetics and plant morphology) helps define such developmental stages (called ontogenetic stages) and how the developmental status of individuals mediates size-related trait scaling relationships. Additionally, I will discuss how it allows us to predict flowering thresholds (flowering onset and large flower production). I will then discuss the benefits of including plant development in functional ecology and how to incorporate this ontogenetic stage-based approachto improve our understanding of woody species population and community dynamics in open ecosystems.

The event is finished.


Mar 28 2024


11 h 00
iEES Paris


iEES Paris
Campus Pierre & Marie Curie, corridor 44 – 45, floor 4, conferences room – CC 237, 4 place Jussieu, 75005 PARIS


iEES Paris


Please follow & share us :)

Adaptation Adaptation, evolution and phenotype Africa ageing Agriculture Agroecology Animal ecophysiology Animals Anthropization Ants Arabidopsis thaliana Asia Bactéria Behaviours Biocontrol Biodiversity Biome Butterflies Carbon Cultures Cyanbacteria Dispersion Drosophila Drought and desertifications Earthworm Ecological engineering Ecophysiology Ecosystem functions and services Electrophysiology Environmental disturbances Erosion Fertility and reproduction Fire Freshwater aquatic environment Genomics Herbivores hormons Immune system Insects Interaction networks Lizards and reptiles Metabolomic micro-organisms Mineralogy Modeling and self-centered simulation Neurobiology Nitrogen Nutrients Olfaction and taste Parasitism Participatory science Pathogens Pesticides and endocrine disruptors Pests and invasive species Pheromones Physical and chemical properties Pigeons Plant ecophysiology Plants Pollinators Pollutants Porosity Proline proteomic Root system Savannah Size Sociality Sociology Soil Organic Matter - SOM Soils Springtails Stress Survival Sustainable development Temperature and climate change Termites Tits Transcriptomic Tropical environments and forests Urban environments Volatile organic compounds - VOCs Wasps Water cycle Watershed


Seminars and events

10 October 2024

Seminar of Cécile Auger

iEES Paris, Campus Pierre & Marie Curie, corridor 44 – 45, floor 4, conferences room – CC 237, 4 place Jussieu, 75005 PARIS

No event found!