Nesting parameters and population dynamics of box-nesting female wood ducks in mingo swamp / Catherine M. Dugger.
Material type:
TextSeries: Thesis ; (M.S.)Publication details: Columbia, MO : University of Missouri-Columbia, 1991.Description: ix, 138 leaves : ill. ; 28 cmOnline resources: Abstract: The wood duck (Aix sponsa) is North America's most widely distributed endemic species and most of its wintering and breeding range falls within the 48 contiguous United States (Bellrose 1980). Currently wood duck populations are stable (Bellrose 1990), but in the early 1900's,ornithologists and waterfowlers believed the wood duck was on the verge of extinction (Bellrose 1976). Hunting pressure, a lack of hunting regulations, and the harvest of large forest tracts, caused the severe decline of wood duck populations, especially in the northeast (Bellrose 1990). The implementation of conservative hunting regulations following enactment of the Federal Migratory Bird Act of 1916 and the Migratory Bird Treaty Act with Canada in 1918, included a 23-year hunting moretoreum on wood ducks (Bellrose 1976). Wood duck populations quickly recovered from over-exploitation and by 1942 one wood duck was allowed in the hunter's bag per day in all states (Bellrose 1976). However, in the early 1950's, p
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Thesis(M.S.)--University of Missouri-Columbia, 1991.
"December, 1991."
Includes bibliographical references (leaves 127-136).
The wood duck (Aix sponsa) is North America's most widely distributed endemic species and most of its wintering and breeding range falls within the 48 contiguous United States (Bellrose 1980). Currently wood duck populations are stable (Bellrose 1990), but in the early 1900's,ornithologists and waterfowlers believed the wood duck was on the verge of extinction (Bellrose 1976). Hunting pressure, a lack of hunting regulations, and the harvest of large forest tracts, caused the severe decline of wood duck populations, especially in the northeast (Bellrose 1990). The implementation of conservative hunting regulations following enactment of the Federal Migratory Bird Act of 1916 and the Migratory Bird Treaty Act with Canada in 1918, included a 23-year hunting moretoreum on wood ducks (Bellrose 1976). Wood duck populations quickly recovered from over-exploitation and by 1942 one wood duck was allowed in the hunter's bag per day in all states (Bellrose 1976). However, in the early 1950's, p