590 species and 152 genera in total

Cluster 1 (light blue): centered on Reserva Nacional Allpahuayo-Mishana, Peru (ER 737)
79 genera (60 unique), 266 species (218 unique), 175 samples, 4757 records
most common: Artibeus (138 samples), Artibeus lituratus (121 samples), Carollia (115 samples)

Cluster 2 (dark green): centered on Voinjama, Liberia (ER 716)
75 genera (41 unique), 291 species (233 unique), 77 samples, 1501 records
most common: Rhinolophus (52 samples), Hipposideros (48 samples), Myotis (40 samples)

Cluster 3 (red): centered on Bullock Creek, Australia (ER 939)
44 genera (8 unique), 109 species (46 unique), 38 samples, 548 records
most common: Tadarida (22 samples), Chalinolobus (18 samples), Vespadelus (17 samples), Nyctophilus (17 samples)

Unclassified samples are in grey. These samples share no species with any of the cluster centers.

This cluster analysis tool is meant for educational purposes only. It uses a simplified and fast algorithm that it is related to the k-medoids method, which might yield better results. It first chooses the most diverse sample to be a cluster center (medoid), and then sequentially selects centers that are maximally dissimilar to those chosen already. It measures similarity using a variant of the Ochiai index that allows for non-zero values when no species are shared. After choosing the centers, it assigns the remaining samples to the clusters based on the same index. To speed up the computation, swaps are not considered.