Compute Traits metrics per plots

[kunstler]

Use species basal area as an estimate of species abundance.

Look at what I did in Ecolt Let 2011

Derive:

• trait CWM
• Multi traits CWM ?
• trait diversity sd what index of traits diversity?
• multi traits diversity

[kunstler]

Need to list which diversity index to use

• First solution use only CWM and Mean pairwise functional distance using the package of Webb see ref in Tatsumi et al. 2018 J Ecol

• Second solution use CWM and the three functional div index Functional richness, Functional evenness, and Functional divergence cf https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/2041-210X.12696 ou https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.0030-1299.2005.13886.x ou https://www.annualreviews.org/doi/abs/10.1146/annurev-ecolsys-120213-091540

TODO Maude to read ref on these other fun div index

[kunstler]

If decide to use richness, evenness, and divergence we need to be explicit about what we learn about the mechanisms. How the avalanche disturbance change the assembly.

• more richness then what does it mean
• more evenness then what does it mean
• ...