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Showing 1 to 17 of 17 for “"wood duck"”.
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An epidemiologic approach to free-ranging wood duck (Aix sponsa) health assessment
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Wood Duck Use and Nesting Success in Artificial Nesting Structures in Eastern South Dakota
Wood duck (Aix sponsa) nest boxes in eastern South Dakota were examined for use by wood ducks and competing species in 1991 (n=506) and 1992 (n=669). Nest box composition in 1991 was: 331 plastic double-walled (POW), 11 plastic single-walled (PSW), and 154 wooden nesting structures; in 1992, 382 of …
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An Assessment of Wood Duck Distribution, Abundance and Riparian Breeding Pair Habitats in South Dakota
… managers are working to reverse this trend. One duck species that has historically responded well to harvest and habitat management is the wood duck (Aix sponsa). Wood ducks were nearly exterminated in the early 1900's as a result of unregulated harvest and habitat destruction. Since passage of …
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Wood Duck Brood Movements, Habitat Use, and Survival Rates on Two Prairie Rivers in South Dakota
Wood ducks, have recently expanded their breeding range throughout South Dakota. Brood ecology may differ from traditional breeding areas, and between areas within South Dakota, due to difference in landscape. Wood duck brood movements, habitat use, and survival were studied by radio-marking hens …
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BREEDING PRODUCTIVITY, NEST DISTRIBUTION, AND POPULATION ECOLOGY OF WOOD DUCKS IN FLOODPLAIN AND UPLAND FORESTS OF SOUTHERN ILLINOIS
Wood ducks are thought to depend on mature hardwood forests juxtaposed with palustrine wetlands but these habitats have been continuously degraded or destroyed since European settlement. Wood ducks are adaptable and the use of marginal habitats and nest boxes has extended their range and probably …
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The role of incubation temperature in determining avian phenotype: implications for avian ecology, life history evolution, and conservation
… in a species of birds. Using a population of wood ducks (Aix sponsa) that has been the subject of long term studies I investigated the effects of incubation temperature on embryonic developmental patterns and energy expenditure, and body size and condition, stress endocrinology, …
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Movements and Habitats of Brood-Rearing Wood Ducks On A Prairie River
… and brood surveys were used to evaluate wood duck (Aix sponsa) brood habitat and movements along 40 km of the Big Sioux River in eastern South Dakota during 1979-81. Most of the oxbows and nearby wetlands in the study area contained water in 1979-80, but drought dried all but 2 of the 33 …
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Seasonal population levels, breeding and hunting of waterfowl on the New River, Virginia
… were observed, including 8 species of diving ducks, 7 species of dabbling ducks and 1 species of goose. Species diversity was highest in February and March and lowest in the summer months. Mallards were sighted more frequently than any other species, followed by the wood duck and the black …
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Use of Artificial Nesting Cavities By Wood Ducks (Aix Sponsa) and Other Species in an Urban Environment
… seventy artificial nest boxes designed for the Wood Duck (Aix sponsa) was observed during the spring and summer months of 1989 and 1990 on a lake located in a residential area of Springfield, Missouri. Data were collected on nesting and non-nesting species, predation, and competition among …
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Examining the Impact of Mercury on Waterfowl with Implications for Human Health and Water Management in Arid Environments
… total mercury concentrations ([tHg]) observed in wood ducks along the lower Carson River watershed in western Nevada. Mercury (Hg) contamination of the Carson River dates back to the Comstock era mines in the late 1800's, where Hg amalgamation methods were used to extract silver and gold from ore …
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Wildlife Habitat in the James River Valley, South Dakota
… consisted of 3181 ha of grassland, 2002 ha of woodland, 1115 ha of savannah, and 392 ha of marshland. Small mammal trapping revealed low densities of mostly white-footed mice (Peromyscus spp.). No vegetation type was more valuable to small mammals than any other. Waterfowl breeding pairs, …
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Waterfowl Breeding Pair and Brood Usage of Oxbows and Riverine Habitats on the James River
… 8 broods/km in 1987 and 1988 respectively with wood duck (Aix sponsa) broods the most common each year at 0. 6 and 0. 7 broods/km in 1987 and 1988. Oxbows contained higher densities of invertebrates than river segments for 9 of 12 groups analyzed. Oxbows contained more emergent and submergent …
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Use of Waterfowl Production Areas by Ducks and Coots in Eastern South Dakota
… (WPA) by American coots (Fulica americana) and ducks was studied during 1970 and 1971 in east-central South Dakota The Eriksrud WPA, a type IV wetland with 55 acres of water area and 35 acres of upland, contained 188 coot nests during the 2-year study. Of the 188 coot nests, 178 hatched for a …
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Distribution and Importance of Stockdams, Dugouts, and Natural Wetlands To Breeding Waterfowl In South Dakota
… green-winged teal (Anas carolinensis), wood duck (Aix sponsa), canvasback (Aythya valisneria), redhead (Aythya Americana), lesser scaup (Aythya affinis), and ringneck (Aythya collaris) were most often associated with class III and IV ponds in 1973 and 1974. Stockdams were used by a …
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FORAGING BEHAVIOR OF DUCKS DURING SPRING MIGRATION IN THE WABASH RIVER REGION, ILLINOIS
… the system. I used a guild of spring migratory ducks as a model system and manipulated food abundance in areas differing in presumed risk to assess the relative effects of food abundance, predation risk, competition, and life history characteristics on foraging strategies used by ducks. Using a …
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Population ecology of wood ducks in Nevada under experimental manipulation of harvest
… manipulated harvest regulations for wood ducks in Nevada, to study how harvest affects population level change in abundance and the mortality process. Additionally, I assessed how variation among individuals affects the mortality and recruitment processes. Harvest regulations are used …
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Consequences of avian parental incubation behavior for within-clutch variance in incubation temperature and offspring behavioral phenotypes
… changes affect avian populations. I used wood ducks (Aix sponsa) as a study species to investigate how factors (disturbance, clutch size, ambient temperature) that influence parental demands may affect parental incubation behavior, physiology, and egg temperatures, and subsequently how egg …