Skip to Main content Skip to Navigation
Theses

Variabilité fonctionnelle intraspécifique: quantification in situ et implications dans une vallée alpine

Abstract : Intraspecific functional variability being poorly known, this work aimed at quantifying this variability, understanding the role of environmental gradients on this variability, disentangling its relative importance compared to interspecific variability and testing its impact on the calculation of functional diversity indices and a model of vegetation dynamics. Following a stratified and hierarchical sampling strategy, we collected traits on sixteen contrasted common species in a French alpine valley. We showed a strong intraspecific variability of traits. This variability was lower than interspecific one, but not negligible, it results partly from environmental effects and could be explained by species habitat models; it also strongly altered the calculation of functional diversity indices. In conclusion, intraspecific functional variability should be more often considered.
Document type :
Theses
Complete list of metadata

https://tel.archives-ouvertes.fr/tel-00450219
Contributor : Cécile Albert Connect in order to contact the contributor
Submitted on : Monday, January 25, 2010 - 4:44:45 PM
Last modification on : Friday, March 25, 2022 - 11:10:31 AM
Long-term archiving on: : Wednesday, November 30, 2016 - 11:43:42 AM

Identifiers

  • HAL Id : tel-00450219, version 1

Collections

Citation

Cécile H. Albert. Variabilité fonctionnelle intraspécifique: quantification in situ et implications dans une vallée alpine. Ecologie, Environnement. Université Joseph-Fourier - Grenoble I, 2009. Français. ⟨tel-00450219⟩

Share

Metrics

Record views

521

Files downloads

2747