476
477

For the second CA, the first three axes explain 35% of the variance. The CA conducted on

478

the first two axes (Fig. 5b) shows that Axis 2, which explains 11.1%, is not decisive in the

479

distribution of samples and species. Axis 1 (15.3% of the variance) distinguishes the quadrats

480

associated with the bajo areas located at its negative end from the hill and site quadrats at its

481

positive end. Axis 3 (9.4% of the variance; Fig. 5c) distinguishes the forest areas of hills with

482

samples of the Ramonal/Zapotal zones at its negative end, and samples of Carrizal environments at

483

its positive end
18

484

These conclusive statistical analyses demonstrate that our sampling and botanical survey method is

485

statistically reliable, except for the identified plant transition zones. Thus, this classification of plant

486

communities can be used to characterize modern phytolith assemblages.

### Language ###
English

### Assessment ###
Getting the percentage of variance explained by the first three axes in the CA analysis

### Query ###
Tell me the total percentage of variance covered by the first three principal axes in the correspondence analysis.
Tell me the total percentage of variance covered by the first three principal axes in the correspondence analysis.