The effects of internal ditching on waterfowl use of a 40-acre slough at Kindersley, Saskatchewan. Alex Dzubin
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TextPublication details: Saskatoon : Canadian Wildlife Service, Unpublished Report, 1959Description: 1 v. (unpaged) : ill. ; 28 cmSubject(s): Abstract: During the past ten years, across the Canadian prairies, there has been a marked yearly and seasonal fluctuation in the number of sloughs which waterfowl utilize for breeding purposes. Especially in the grassland habitat, these fluctuations can be large from year to year depending on a number of factors which include rainfall, snowfall, wind velocities,temperature changes, etc. With winters of low snowfall and light spring rains, certain sloughs contain sufficient water in the spring to attract breeding pairs but do not contain sufficient water to allow broods from the nesting activities of these pairs, to reach flying stage. Because of increased evaporation rates during the summer months, the number of sloughs that are used by breeding pairs in May are usually decreasing in number through July and August. Flightless broods must therefore move from sloughs that are dyring.
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Research Library Government Documents | Non-fiction | CA1 EN CWS 1959-1 (Browse shelf(Opens below)) | Available | 2527 |
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| CA1 EN CWA 1999-2000 The Canada water act: annual report | CA1 EN CWA 2000-2001 The Canada water act: annual report | CA1 EN CWA 2001-2002 The Canada water act: annual report | CA1 EN CWS 1959-1 The effects of internal ditching on waterfowl use of a 40-acre slough at Kindersley, Saskatchewan. | CA1 EN CWS 1966-1 Private waterfowl marshes in southwestern Ontario. | CA1 EN CWS 1971-1 A bibliography of wildlife studies for the Saskatchewan - Nelson River basin. | CA1 EN CWS 1971-2 Pesticides and wildlife / |
November 1, 1959
During the past ten years, across the Canadian prairies, there has been a marked yearly and seasonal fluctuation in the number of sloughs which waterfowl utilize for breeding purposes. Especially in the grassland habitat, these fluctuations can be large from year to year depending on a number of factors which include rainfall, snowfall, wind velocities,temperature changes, etc. With winters of low snowfall and light spring rains, certain sloughs contain sufficient water in the spring to attract breeding pairs but do not contain sufficient water to allow broods from the nesting activities of these pairs, to reach flying stage. Because of increased evaporation rates during the summer months, the number of sloughs that are used by breeding pairs in May are usually decreasing in number through July and August. Flightless broods must therefore move from sloughs that are dyring.