Download or read book Assessing Health Parameters Contaminant Exposure Indicators and Breeding Ecology of Wood Ducks Aix Sponsa in Central Wisconsin written by Shannon Finnerty and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterfowl Management Handbook written by Katie M. Dugger and published by . This book was released on 1992 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood Duck Aix Sponsa Ecology and Management Within the Green timber Impoundments at Montezuma National Wildlife Refuge written by George Michael Haramis and published by . This book was released on 1975 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various ecological and biological aspects of the wood duck (Aix sponsa)were investigated in the elm-ash-maple (Ulmus-Fraxinus- Acer) bottomland timber impoundments at Montezuma National Wildlife Refuge in central New York. Major areas of research included (a) a description of the forest stand with special reference to the ecological impact of seasonal impoundment, (b) the pattern of occurrence and use of natural nest cavities by wood ducks, (c) the nesting response of wood ducks to nest boxes, (d) an investigation of dump nesting, (e) mark-recapture estimates of annual duckling production, (f) a study of vernal pool invertebrates, and (g) a study of brood usage and survival. Spring flooded green timber was found to produce ideal breeding habitat for wood ducks in providing ample acceptable nest cavities (1.60 per acre)and an abundance of early spring (vernal pool) invertebrate food resources, including fairy shrimp (Chirocephalopsis bundyi), cladocerans (Daphnia pulex), mosquito lar.
Download or read book A Guide to Wood Duck Production Habitat Requirements written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Management of the Wood Duck written by Frank Chapman Bellrose and published by . This book was released on 1994 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reference on the wood duck includes basic biology, life history, population characteristics, and research and management techniques.
Download or read book Wood Duck Banding Program written by Charles F. Kaczynski and published by . This book was released on 1961 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival Recruitment and Management of Box nesting Populations of Wood Ducks in Mississippi and Alabama written by John Brian Davis and published by . This book was released on 2001 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monitoring and Prediction of the Fall Flight of Wood Ducks Aix Sponsa in Michigan written by Linda Ann Briggs and published by . This book was released on 1997 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Habitat Conditions on Nesting Activity of Wood Ducks Aix Sponsa in Tree Cavities written by Richard Alan Geboy and published by . This book was released on 2006 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Wood duck breeding biology has largely been studied in artificial nest boxes, but environmental influences on nesting biology must be studied in the context within which wood ducks evolved (i.e. natural tree cavities). Previous work suggested that intra- and inter-seasonal changes in abundance of invertebrate foods and/or accessibility of tree cavities may affect nesting season length and the breeding chronology of wood duck hens. This study examined the relationships of intra-seasonal and annual variation in invertebrate food abundance and leaf emergence with nesting chronology, nesting effort, and nest parasitism rates in a southern Illinois' wood duck population that nests in natural cavities. Nest chronology, nesting effort, and parasitism rates were studied during 1994 -- 1998 and 2001 -- 2002. I modeled wetland conditions with local precipitation and stage of the Mississippi River. Wetland invertebrate food abundance was measured by sweep- net sampling in seasonal and semi-permanent wetlands in 2001 and 2002. Invertebrate sampling was completed during four nesting periods (egg laying, late egg laying/early incubation, incubation! early hatch, hatch) during 2001 -- 2002. Weekly leaf emergence in 2001 and 2002 was measured with a Model-A Spherical Densiometer, from the onset of leaf emergence through the period of maximum upper story leaf coverage. Annual nesting effort of radiomarked hens known to incubate clutches ranged from 42% - 70% throughout the study. Clutch sizes >14 (indicative of nest parasitism) ranged from 8% - 43% during the study and varied inversely with nesting effort. High nesting effort was observed in years with the most stable water levels during egg laying and incubation. Invertebrate biomass did not differ throughout the 2001 (P = 0.76) and 2002 (P = 0.17) nesting seasons. During hatch, densities in 2002 were 1.7 times higher than egg laying and incubation/early hatch; however did not differ from late egg laying/early incubation (P = 0.05). Mean invertebrate densities were not significantly different (P = 0.87) during 2001. Two commonly consumed invertebrates known to occur during nest initiation and hatch, Isopoda and Diptera (primarily Chironomidae), were 10.2% and 18.4% more numerous during the egg laying and hatch (P
Download or read book Nesting Parameters and Population Dynamics of Box nesting Female Wood Ducks in Mingo Swamp written by Catherine M. Dugger and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Intraspecific Nest Parasitism in Wood Ducks written by Charlotte Roy Nielsen and published by . This book was released on 2004 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Duck and Coot Ecology and Management in Wisconsin written by Laurence R. Jahn and published by . This book was released on 1965 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of the Population Biology Genetics and Future Viability of the Breeding Wood Duck Aix Sponsa Population at Arrowwood National Wildlife Refuge written by James Bruce Neill and published by . This book was released on 1995 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating the Function of a Female specific Plumage Trait in the Wood Duck Aix Sponsa written by Emily Elizabeth Graves and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Until very recently, research into plumage ornaments and plumage signals of individual quality has been focused primarily on males, while variation among females has largely been ignored. We examined a female-specific plumage trait (the white eye patch) in the Wood Duck (Aix sponsa), a sexually dimorphic species of cavity-nesting waterfowl in North America to explore if this plumage trait indicates higher individual quality (Quality-Handicap hypothesis) or lower individual quality (Stress-Indicator hypothesis). Five breeding populations were studied for three consecutive years to collect data on the size of a plumage trait in relation to age, breeding success, future breeding, and body condition. Eye patch size was highly variable among individuals, varied across study year and site, correlated weakly with our body condition index, and was correlated strongly with age. For individuals over four years old, eye patch size was negatively related to the likelihood of returning to breed in the following year (those with larger eye patches are less likely to return). Trait size was also positively correlated with nest initiation date (more pronounced in older birds), but not with clutch size or hatch success. Overall, our results suggest that this plumage trait is an indication of individual female age and quality. Larger patches in older females appeared to reflect lower quality and may act as an indicator of senescence and/or stress. These results indicate that the white eye patch in female Wood Ducks is a reflection of individual age and status and has the potential to act as a social signal.
Download or read book Behavioural Responses of Host Wood Ducks Aix Sponsa to Brood Parasitism and Its Threat microform written by Steven Foster Wilson and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1990 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trapping Rates Survival and Habitat Selection for Wood Ducks in Central Wisconsin written by Kaitlyn Kali Rush and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Dump Nests and Habitat on Reproductive Ecology of Wood Ducks Aix Sponsa Linnaeus written by Stephen James Zipko and published by . This book was released on 1979 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
