Ring-necked duck Aythya collaris
Area|--------1966-1994 trends--------| |--1966-1979---||--1980-1994---|
Trend P N ( 95% CI ) R.A. Trend P N Trend P N
S28 2.6 22 -4.4 9.6 0.18 -9.7 ** 12 8.5 ** 14
S30 2.0 20 -9.8 13.8 0.32 2.1 5 -9.0 16
S64 1.2 16 -11.5 13.8 0.30 0.6 4 4.4 15
EA 2.7 40 -4.1 9.5 0.10 -9.0 *** 22 10.8 *** 21
WE 12.3 *** 49 5.0 19.6 0.23 -2.6 8 5.3 44
RE3 6.4 17 -9.3 22.0 0.09 -21.1 *** 7 14.1 *** 9
US 68.0 *** 41 53.1 82.9 0.09 -19.4 *** 11 16.2 *** 29
CAN 2.3 57 -2.7 7.3 0.19 -5.6 ** 22 6.7 ** 42
SUR 6.1 ** 98 1.1 11.1 0.16 -6.5 *** 33 7.4 *** 71
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