The effects of artificial barriers and loafing sites on nesting densities of waterfowl / David M. Sill.
Material type:
TextPublication details: Logan, UT : Utah State University, 1966.Description: 1 v. (various pagings) : ill. ; 28 cmOnline resources: Abstract: Waterfowl breeding habitat has been reduced in recent years by drainage of many marshlands and drought over much of the continent. Therefore,encouragement of waterfowl to nest and produce young in existing publicly-owned lands is desirable. Flyway representatives believe the greatest challenge facing waterfowl managers and researchers today is that of producing more waterfowl from less area. It appears likely that waterfowl habitat will continue to decrease with an inevitable lowering of the potential for maintaining waterfowl populations. We should,therefore, endeavor to modify habitat so that birds will nest in greater concentrations than now takes place (Anonymous, 1962). Saline marshes in Utah and elsewhere although highly productive, can probably be managed to produce even greater levels of nesting densities. Some researchers have concluded that intolerance between breeding pairs of waterfowl may be a factor limiting nesting densities. Artificial barriers visually isolating pai
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Incomplete, pages missing
Thesis(M.S.)--Utah State University, 1966.
Includes bibliographical references (leaves 50-51).
Waterfowl breeding habitat has been reduced in recent years by drainage of many marshlands and drought over much of the continent. Therefore,encouragement of waterfowl to nest and produce young in existing publicly-owned lands is desirable. Flyway representatives believe the greatest challenge facing waterfowl managers and researchers today is that of producing more waterfowl from less area. It appears likely that waterfowl habitat will continue to decrease with an inevitable lowering of the potential for maintaining waterfowl populations. We should,therefore, endeavor to modify habitat so that birds will nest in greater concentrations than now takes place (Anonymous, 1962). Saline marshes in Utah and elsewhere although highly productive, can probably be managed to produce even greater levels of nesting densities. Some researchers have concluded that intolerance between breeding pairs of waterfowl may be a factor limiting nesting densities. Artificial barriers visually isolating pai