Table 7. Deriving mean age of primiparity from wolf breeder data from throughout Minnesota wolf range (Table 5).

				First		Total
		Breeders		Breeders		cohort
Age	N	No.	%	%	No.	Yearsa
2	45	15	33	33	15.0	30.0
3	37	17	46	13	4.8	14.4
4	26	20	77	31	8.1	32.4
5	16	11	69	0	0.0	0
6	14	11	79	2	0.3	1.8
7	4	4	100	21	0.8	5.6
8	8	8	100	-	-	-
9	6	5	83	-	-	-
10	2	1	50	-	-	-
11	1	0	0	-	-	-
Total	159	92	-	100	29.0b	84.2b

^a Number of first breeders times age.

^b Mean age of primiparity (84.2/29.0) = 2.9 years.