Biodiversity Sampling Using a Global Acoustic Approach: Contrasting Sites with Microendemics in New Caledonia
Figure 4
Principal Coordinate Analysis (PCoA) on the acoustic dissimilarity matrix.
A: Eigenvalue bar plot. B: Results of PCoA applied to the acoustic dissimilarities among recordings with factor “Time” as a supplementary variable subsequently projected on the map. Projection along the axes 1 and 2. C: Results of PCoA applied to the acoustic dissimilarities among recordings with the spatial factor “Site” (A: Aoupinié, K: Koghis, M: Mandjélia). Projection along the axes 3 and 4. The dispersion ellipses surround the position of a time period (Figure 4A) or of a site (Figure 4B) providing an index of the dispersion around the time/site centroid (67% of recordings collected at a given time or at a site are expected to be in the associated ellipse).