Diversity type |
Diversity index |
Description |
TD |
Species Richness |
Number of species per community |
FD |
FDiv (Functional Divergence) |
Degree of functional dissimilarity
within the community weighted by abundance (Villéger et al.
2008). |
|
FEve (Functional Evenness) |
Regularity of distribution of species
abundances in functional space as a measure of resource utilization
(Villéger et al., 2008). |
PD |
MPD (Mean Pairwise Distance) |
Average nodal distance on a
phylogenetic tree between species of a community (Webb, 2000). High
values indicate species in the community are distributed across a wide
range of clades, while low values mean the species in the community are
clustered. |
|
sesMPD (standard effect size Mean Pairwise Distance) |
MPD adjusted
for species richness. Positive sesMPD values indicate communities with
higher MPD than expected (overdispersed), and the opposite for negative
values (clustered). |