Table 1.

Regional variation in local primate species richness

Region	Area rank	Localities, n	Species, n	Rainfall	Dry months, n
Amazon	I	44	9.41  (2.91)	2358  (624)	3.22  (2.36)
Orinoco and N.E. coast	II	14	4.64  (2.41)	2277  (851)	2.71  (2.20)
North or west of Andes	III	6	3.33  (1.75)	2396  (978)	2.33  (3.20)
Island of Trinidad	IV	1	2	2400	NA
Maracá Island, Amapá, Brazil	V	1	2	1600	6

Means and SD are given in columns 4–6. NA, not available.