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	Waterfowl Species Abundance an indicator of wildlife sustainability in British Columbia's Interior

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Table 1. Mean numbers of Dabbling and Diving ducks seen per survey in the British Columbia Interior Cooperative Wetland Survey, 1988-2004.

Year	Dabblers	Divers	Total Waterfowl
1988	2725.3	3297.8	6023.1
1989	2007.2	3506.2	5513.4
1990	2011.2	3888.0	5899.2
1991	2952.8	4488.7	7441.5
1992	3255.3	4449.3	7704.6
1993	2559.5	4495.5	7055.0
1994	2372.0	5430.3	7802.3
1995	3123.0	5561.7	8684.7
1996	2398.7	5897.7	8296.4
1997	2282.7	5777.2	8059.9
1998	3755.2	5479.7	9234.8
1999	2880.7	5389.5	8270.2

2000	2785.5	4991.7	7777.2
2001	2362.0	5005.8	7367.8
2002	2395.3	6217.7	8613.0
2003	2266.0	5976.8	8242.8
2004	1712.8	4576.2	6289.0
1988-03, Mean	2633.3	4990.9	7624.1
2004, % change from 2003 mean	-24.4	-23.4	-23.7
2004, % change from 1988-03 mean	-35.0	-8.3	-17.5

Table 2. Mean number of breeding pairs of Dabbling and Diving ducks seen per survey in the British Columbia Interior Cooperative Wetland Survey.

Year	Dabblers	Divers	Total Breeding Pairs
1988	913.7	884.2	1797.8
1989	903.0	793.9	1696.9
1990	790.8	830.2	1621.0
1991	1134.0	986.3	2120.3
1992	1319.0	964.0	2283.0
1993	1230.7	949.5	2180.2
1994	1216.0	1014.4	2230.4
1995	1289.8	986.0	2275.8
1996	732.7	703.3	1436.0
1997	720.0	626.5	1346.5
1998	1098.8	610.0	1708.8
1999	697.3	578.0	1275.2
2000	864.3	624.8	1489.1
2001	802.5	698.2	1500.7
2002	780.8	821.2	1602.0
2003	701.5	841.3	1542.8
2004	593.0	770.8	1363.8
1988-03, mean	949.7	807.0	1756.7
2004, % change from 2002 mean	-15.5	-8.4	-11.6
2004, % change from 1988-03 mean	-37.6	-4.5	-22.4

Source: Breault 2005.

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Table 3. The total migratory bird hunting permit sales, estimated number of active hunters and the estimated harvest of all duck species for the province of British Columbia from the CWS National Harvest Survey database.

Fall Year*	Permits Sold	Estimated Active Hunters¹	Estimated Harvest of all Ducks
1974	27764	11642	120792
1975	25918	16900	235448
1976	26561	17378	231424
1977	28357	18721	259489
1978	28561	18504	210766
1979	28263	17009	204605
1980	27943	17511	185833
1981	28243	18012	186700
1982	26522	17350	163191
1983	24170	17436	193600
1984	21892	14092	174324
1985	18753	12413	145848
1986	17924	12371	125035
1987	16259	10894	126703
1988	15595	9280	115664
1989	14694	9325	102899
1990	13851	8788	96160
1991	13601	8255	80403
1992	12429	8138	82280
1993	11818	6943	72830
1994	11037	7052	78687
1995	9855	6265	62217
1996	10069	6058	72237
1997	10185	6354	81176
1998	9816	6573	87426
1999	9314	6025	70934
2000	9007	5945	73408
2001	8185	5090	55594
2002	7464	5009	58734
2003	6509	4021	51989
2004	6693