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Habitat Use Daily Movements And Survival Of Female American Black Ducks Wintering In West Central Tennessee
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Book Synopsis Habitat Use, Daily Movements, and Survival of Female American Black Ducks Wintering in West-central Tennessee by : William Hunt Chipley
Download or read book Habitat Use, Daily Movements, and Survival of Female American Black Ducks Wintering in West-central Tennessee written by William Hunt Chipley and published by . This book was released on 1995 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Survival and Habitat Selection of American Black Ducks in Tennessee by : Kira Cristina Newcomb
Download or read book Survival and Habitat Selection of American Black Ducks in Tennessee written by Kira Cristina Newcomb and published by . This book was released on 2014 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: American black duck (Anas rubripes) populations declined throughout North America from 1950--1990, but the breeding population since has stabilized. However, limited information exists on black ducks in the Mississippi Flyway, where wintering populations continue to decline. I radiomarked 111 female black ducks at Tennessee National Wildlife Refuge (TNWR) in winters 2010--2012 to estimate winter survival and investigate patterns of habitat selection. Winter survival (83--85%) was greater than or comparable to previous estimates for black duck populations in North America. Interval survival increased 0.6% with a 100 g increase in body mass, but survival differed between years and waterfowl hunting seasons relative to body mass. Black ducks selected habitats on TNWR and emergent/scrub-shrub wetlands throughout winter regardless of hunting season or time of day. High winter survival rates and consistent use of TNWR suggest the refuge provides an important complex of habitats for black ducks wintering in Tennessee.
Book Synopsis Identification and Synthetic Modeling of Factors Affecting American Black Duck Populations by : Michael James Conroy
Download or read book Identification and Synthetic Modeling of Factors Affecting American Black Duck Populations written by Michael James Conroy and published by . This book was released on 2002 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Food Habits of Black Ducks Wintering in West Central Tennessee by : Veronica E. Byrd
Download or read book Food Habits of Black Ducks Wintering in West Central Tennessee written by Veronica E. Byrd and published by . This book was released on 1993 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Abstracts International by :
Download or read book Masters Abstracts International written by and published by . This book was released on 1996 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Black Duck Wintering Dynamics and Dabbling Duck Response to Herbicide Application in Western Tennessee Wetlands by : Joshua Matthew Osborn
Download or read book American Black Duck Wintering Dynamics and Dabbling Duck Response to Herbicide Application in Western Tennessee Wetlands written by Joshua Matthew Osborn and published by . This book was released on 2015 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: American black duck (Anas rubripes) populations declined throughout North America in the late 20th century. Although the breeding population has since stabilized, research investigating habitat use by black ducks in the Mississippi Flyway is scarce. Impacts of wetland management practices in response to invasive species must also be tested to measure responses to habitat quality by black ducks and other waterfowl. During winters 2011-2013 (December-February), I estimated food biomass, diurnal habitat use, and activities of black ducks in 6 cover types at the Duck River Unit of Tennessee National Wildlife Refuge and Cross Creeks National Wildlife Refuge in western Tennessee. I also evaluated vegetation response, dabbling duck use and activities, and food biomass in moist-soil wetland plots containing alligatorweed (Alternanthera philoxeroides) treated with imazapyr. Black ducks were most common in scrub-shrub wetlands, where locomotion and resting behaviors were dominant activities. Although highly variable, black duck use was also high in unharvested, flooded corn. Moist-soil wetlands and mudflats were important foraging substrates, but black duck use in these areas were not equivocal to use in scrub-shrub. Greatest food biomass occurred in moist-soil wetlands compared to other cover types. However, black ducks appeared to select sites with lesser, but consistent food densities throughout winter. Waterfowl use, behavior, and food biomass did not differ between control and treatment plots. Reductions of alligatorweed with imazapyr in moist-soil wetlands did not improve use of those sites by black ducks perhaps due to a lack of shrub cover. My results suggest cumulative life-history strategies likely influence habitat use by wintering American black ducks. Managers should provide foraging areas proximate to scrub-shrub wetlands to benefit black ducks in western Tennessee. Flooded agriculture at TNWR and CCNWR could facilitate interactions and consequently hybridization potential between mallards and black ducks. Managers should reduce flooded corn acreage and restore scrub-shrub wetlands amidst early succession emergent wetlands. Imazapyr treatment should not replace current management strategies in moist-soil wetlands (i.e., rotational disking, disking with supplemental planting, prescribed burning), but may be used to control invasive plant species as needed without negative implications on food resources for wintering waterfowl during treatment years.
Book Synopsis Habitat Differences Between Mallards and American Black Ducks Wintering in Tennessee by : William Steven Clark
Download or read book Habitat Differences Between Mallards and American Black Ducks Wintering in Tennessee written by William Steven Clark and published by . This book was released on 1996 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Ornithology Index written by and published by . This book was released on 1988 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Use and Response to Wetland Management Practices of Non-breeding Dabbling Ducks in Western Tennessee by : Matthew Doddridge McClanahan
Download or read book Habitat Use and Response to Wetland Management Practices of Non-breeding Dabbling Ducks in Western Tennessee written by Matthew Doddridge McClanahan and published by . This book was released on 2015 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Western Tennessee is an important area for non-breeding waterfowl in the Mississippi Flyway, including over 40% of the Mississippi Flyway population of American black ducks (Anas rubripes, hereafter black ducks), a species in decline. Information is lacking on waterfowl community ecology in the region, and managers must identify key habitats and consider functional use and potential predictors of resource use by non-breeding communities. Impacts of wetland management practices, such as moist-soil disking and subsequent planting of desirable grasses (i.e., Japanese millet [Echinochloa frumentacea], hereafter millet), must also be tested relative to impacts on waterfowl use and habitat quality. During winters 2011-2013 (November-February), I estimated food densities, diurnal habitat use, activities, and potential predictors of use of dabbling ducks (Anatini) at the Duck River Unit of Tennessee National Wildlife Refuge and Cross Creeks National Wildlife Refuge in western Tennessee, and I interpreted patterns relative to black ducks observed in concurrent studies (Chapter II). I also estimated autumn vegetation response, dabbling duck use and activities, and food densities in moist-soil wetland plots disked and planted with millet (Chapter III). Dabbling ducks primarily used moist-soil areas, and foraging was the dominant activity. Mudflats and scrub-shrub areas were also used as foraging areas. Habitat use was positively correlated with increasing emergent cover and energetic carrying capacity and was negatively correlated with increasing water depth. Black ducks occurred with other Anatini species in each habitat type, especially in moist-soil and scrub-shrub areas. Food densities were initially greatest in moist-soil areas, but foods declined rapidly. Vegetation was taller and percent cover of desirable species greater in un-manipulated than disked wetland plots, but duck use and food densities did not differ between treatments. Foraging was more frequently observed in disked than un-manipulated plots. Disking and millet planting did not improve wetland use by black ducks. My results suggest that managers should provide a complex of natural wetland types to accommodate non-breeding dabbling duck communities in western Tennessee. Disking and millet planting should not be used to improve moist-soil wetlands for black ducks, and other wetland manipulation techniques should be investigated.
Book Synopsis Habitat Use and Energetics of American Black Ducks Wintering at Chincoteague, Virginia by : John M. Morton
Download or read book Habitat Use and Energetics of American Black Ducks Wintering at Chincoteague, Virginia written by John M. Morton and published by . This book was released on 1987 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Food Habits of Black Ducks Wintering in West Central Tennessee by : Veronica E. Byrd
Download or read book Food Habits of Black Ducks Wintering in West Central Tennessee written by Veronica E. Byrd and published by . This book was released on 1991 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Body Composition, Activity Budgets, and Food Habits of American Black Ducks Wintering in West-Central Tennessee by : Timothy Owen White
Download or read book Body Composition, Activity Budgets, and Food Habits of American Black Ducks Wintering in West-Central Tennessee written by Timothy Owen White and published by . This book was released on 1994 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Suitability Index Models by : James C. Lewis
Download or read book Habitat Suitability Index Models written by James C. Lewis and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Use and Behavior of Ducks Wintering at Cross Creeks National Wildlife Refuge by : Rebecca Gale Littleton
Download or read book Habitat Use and Behavior of Ducks Wintering at Cross Creeks National Wildlife Refuge written by Rebecca Gale Littleton and published by . This book was released on 1989 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determination of winter habitat use and behavior is important to the management of duck species during this critical period of their annual cycle. During the last several years American black duck (Anas rubripes) populations have been declining, while mallard (Anas platyrhynchos) populations have been on the rise, possibly due to the hybridization of these two species. Pair formation occurs during the winter and courtship behavior is similar for both species, thus, increasing the possibility of formation of interspecific pairs on the wintering grounds. The objectives of this study were to: determine habitat use by waterfowl wintering at Cross Creeks National Wildlife Refuge; determine any differences in percentage of habitat use between species, especially between American black ducks and mallards; determine behavior of waterfowl wintering at Cross Creeks National Wildlife Refuge and how behavior was influenced by biological, physical, and environmental factors; and determine habitat types critical for each type of behavior, especially for American black ducks and mallards.
Book Synopsis Variables Affecting Habitat Use and Movements of American Black Ducks and Mallards on the Missisquoi National Wildlife Refuge by : Charles G. Kitchens
Download or read book Variables Affecting Habitat Use and Movements of American Black Ducks and Mallards on the Missisquoi National Wildlife Refuge written by Charles G. Kitchens and published by . This book was released on 1994 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fall Movements, Behavior and Habitat Use of Young Waterfowl in North-central Minnesota by : Ronald E. Kirby
Download or read book Fall Movements, Behavior and Habitat Use of Young Waterfowl in North-central Minnesota written by Ronald E. Kirby and published by . This book was released on 1976 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Black Duck Distribution, Harvest Characteristics, and Survival by : Aelred D. Geis
Download or read book Black Duck Distribution, Harvest Characteristics, and Survival written by Aelred D. Geis and published by . This book was released on 1971 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
