Table 1.

Number and proportion (in brackets) of OTUs and their classification by habitat (generalist ≥3 and specialist = 1). More bacterial OTUs were classified as generalists (~50%) than was the case for eukaryotes (~25%), while eukaryotes OTUs were more specialist (~50%) than prokaryotes (~25%)

Group	Total	Generalist	Specialist
All	39,351	10,875 (28%)	20,495 (52%)
Bacteria	9943	5007 (50%)	2761 (28%)
Protists	6568	1659 (25%)	3395 (52%)
Fungi	6750	1394 (21%)	3843 (57%)
Metazoa	5107	1242 (24%)	2763 (54%)
Chloroplastida	438	107 (24%)	231 (53%)
Unknown	10,443	1422 (14%)	7477 (72%)