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Long-term Declines in Nest Success of Prairie Ducks

Appendix A

Published and unpublished sources of nest success data for 5 species of upland-nesting ducks in the Prairie Pothole Region. 1935-92. Unpooled refers to nest success estimates that were kept separate for each species at each site in each year. Pooled refers to nest success estimates pooled for all species present at each site each year. Note that the pooled dataset may include more species and more nests. The number of estimates of nest success (n) and the number of nests on which each study was based are given. Data from islands or predator control sites were not included. NWA = national wildlife area, WMD = wetland management district, WPA = waterfowl production area.

Reference	Year(s) of study	Study Site	Unpooled		Pooled		Estimator used
Reference	Year(s) of study	Study Site	n	No. nests	n	No. nests	Estimator used
Adams, G. D., unpubl.	1981-82	Thickwood Hills, SK	3	54	2	63	Mayfield
Adams, G. D., unpubl.	1989-90	Thickwood Hills, SK	2	49	2	49	Mayfield
Clark et al. 1991	1980-81	St. Denis, NWA, Sask.	6	153	2	153	Mayfield
Clark et al. 1991	1983-85	St. Denis, NWA, Sask.	11	281	3	281	Mayfield
Clark, R. G., unpubl. data	1990	Elstow, Sask.			1	32	Mayfield
Clark, R. G., unpubl. data	1990	Yorkton, Sask.	3	39	1	78	Green
Cowardin et al. 1985	1977-80	N.D.	4	129	4	129	Mayfield
Duebbert and Kantrud 1974	1971	S.D. (2 sites)			2	245	Green
Duebbert and Lokemoen 1976	1971-73	Edmunds County, S.D.	12	544	3	569	Green
Duebbert and Lokemoen 1980	1973-74	Hosmer, S.D.	5	167	2	180	Green
Dzubin and Gollop 1972	1952-55	Roseneath, Manit.	4	213	4	213	Green
Dzubin and Gollop 1972	1956-58	Kindersley, Sask.	3	611	3	611	Green
Furniss 1938	1935, 1937	Prince Albert, Sask.	2	33	2	33	Green
Greenwood 1986	1979	Gaier WPA, N.D.			1	204	Mayfield
	1979	Haglund WPA, N.D.			1	68	Mayfield
	1980	Crystal Springs WPA, N.D.			1	73	Mayfield
	1980	Haglund, N.D.			1	71	Mayfield
	1980-81	Ackerson, WPA, N.D.			2	110	Mayfield
	1981	Jamestown College WPA, N.D.			1	91	Mayfield
Greenwood et al. 1990	1982-84	Ackerson WPA, N.D.			3	96	Mayfield
	1982-85	Gaier WPA, N.D.			4	87	Mayfield
	1983-84	Jamestown College WPA, N.D.			2	35	Mayfield
	1984	Hertel WPA, N.D.			1	13	Mayfield
Greenwood, R. J., USFWS, pers. comm.	1982	Tichfield, Sask.	5	91	1	91	Mayfield
	1982-85	Hanley, Sask.	9	212	4	212	Mayfield
	1982-85	Shamrock, Sask.	14	838	4	884	Mayfield
	1983	Cartwright, Manit.	2	32	1	32	Mayfield
	1983	Goodwater, Sask.	5	265	1	281	Mayfield
	1983	Holden, Alta.	4	158	1	158	Mayfield
	1983-84	Ceylon, Sask.	9	718	2	774	Mayfield
	1983-84	Hay Lakes, Alta.	8	324	2	324	Mayfield
	1983-84	Moorepark, Manit.	8	257	2	257	Mayfield
	1984-85	Craik, Sask.	3	39	2	39	Mayfield
	1984-85	Denzil, Sask.	7	189	2	189	Mayfield
	1984-85	Leask, Sask.	7	225	2	225	Mayfield
	1984-85	Penhold, Alta.	2	66	2	66	Mayfield
	1985	Earl Grey, Sask.	4	123	1	123	Mayfield
	1984-85	Inchkeith, Sask.	4	67	2	67	Mayfield
	1985	Gayford, Alta.	4	57	1	57	Mayfield
	1985	Yorkton, Sask.	3	144	1	156	Mayfield
Hawkins 1949	1949	Southwestern Manit.	3	132	1	150	Green
Hawkins 1950	1950	Southwestern Manit.	2	51	1	57	Green
Higgins et al. 1992	1966-81	Woodworth, N.D.			16	3,517	Mayfield
Howard et al. 1954	1953	Elkhorn Area, Manit.	1	63	1	89	Green
Johnson et al. 1988a	1983	Streeter, N.D.	4	115	1	124	Mayfield
	1983	Sharon, N.D.	1	42	1	56	Mayfield
	1983	Plaza, N.D.	5	193	1	198	Mayfield
	1983	Madison, S.D.	2	68	1	78	Mayfield
	1983	Parkston, S.D.	2	63	1	73	Mayfield
Kaiser 1976	1974	Madison WMD, S.D.	1	61	1	81	Green
Kaiser 1976	1974	Lake Andes WMD, S.D.	1	137	1	167	Green
Kalmbach 1938	1936	Lower Souris Refuge, N.D.	5	303	1	326	Green
Kiel 1951	1949-51	Newdale-Erickson Area, Manit.			3	101	Green
Kiel 1953	1952	Newdale-Erickson			1	48	Green
Kiel 1954	1953	Newdale-Erickson	3	238	1	238	Green
Lokemoen et al. 1982	1978-80	Gaub WPA, N.D.			3	64	Mayfield
Oetting and Dixon 1975	1974	Oak Hammock Marsh, Manit.	4	223	1	224	Green
Page and Cassel 1971	1969	Railway ROW, N.D.			1	80	Green
Reeves et al. 1956	1955	Success, Sask.	2	130	1	138	Green
Simpson 1988	1985	S.D. (11 sites)	6	132	11	228	Mayfield
Smith 1954	1953	Lousana, Alta	2	24	1	30	Green
Smith 1954	1953	Vermillion, Alta.	1	50	1	61	Green
Smith 1956	1955	Lousana, Alta.	3	65	1	73	Green
Smith 1956	1955	Vermillion, Alta.	1	35	1	49	Green
Stoudt 1953	1952	Redvers, Sask.	2	94	1	109	Green
Stoudt 1971	1956-60	Redvers, Sask.	12	1,324	5	1,347	Green
Stoudt 1971	1964	Redvers, Sask.	2	24	1	26	Green
Stoudt and Buller 1954	1953	Redvers, Sask.	3	287	1	299	Green
Stoudt and Stinnett 1955	1954	Redvers, Sask.	4	334	1	353	Green
Stoudt and Yeager 1956	1955	Redvers, Sask.	3	294	1	313	Green
Taylor, P. S., CWS, pers. comm.	1992	Last Mt. NWA, Sask.			1	389	Green
Wright, M., DU (Can.), unpubl. data	1972	Colonsay, Sask.	4	86	1	91	Green
Total			232	10,646	143	163,513

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