| Ace |
An estimate of species richness using a correction factor |
[18,34] |
| Observed OTUs |
The number of different OTUs per sample |
[16] |
| Chao1 |
A measure of species richness, which gives more weight to rare species |
[34] |
| Margalef |
Measure of species richness in a given area or community |
[35,36] |
| Fisher alpha |
Relationship between the number of species and the relative abundance of each species; referred to as a measure of richness |
[37,38] |
| Faith pd |
Sum of OTU branch lengths; takes into account phylogenic distance between OTUs; the greater the number of unique OTUs, the higher this index will be |
[18,39] |
| Brillouin d |
Measures the diversity of the species present |
[18] |
| Shannon |
Calculation of richness and evenness using a natural logarithm; accounts for both relative abundance and evenness of the taxa present; referred to as an attempt for one metric to capture both richness and relative evenness |
[18,40] |
| Enspie (ENS) |
Measure of the number of equally abundant species; if the relative abundance of all species in a community were exactly identical, ENS would simply be the total number of species in that community |
[41] |
| Menhinick |
The ratio of the number of taxa to the square root of the sample size; referenced as "species richness" |
[18,35] |
| Mcintosh e |
A measure of how evenly/unevenly abundant taxa are in the sample |
[18,42] |
| Simpson |
Measure of relative abundance of the different species making up the sample richness; referred to as an attempt for one metric to capture both richness and relative abundance |
[40,43] |
| Berger Parker d |
A measure of relative richness of the abundant species; higher values indicate relative abundance disturbance |
[18,44,45] |
| Strong |
Assesses species relative abundance unevenness/dominance concentration |
[46] |
| Simpson e |
A measure of evenness based on the number of organisms and number of species |
[43] |
| Pielou e |
Measure of relative evenness of species richness |
[12,42,47] |
| Heip e |
A measure of evenness |
[18,42] |
| Lladser pe |
A measure of how much of the environment contains unsampled taxa |
[18,48] |
