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Comparisons Of Floodplain Forest Bird Communities Adjacent To Four Land Use Types At Minnesota Valley National Wildlife Refuge
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Book Synopsis Comparisons of Floodplain Forest Bird Communities Adjacent to Four Land Use Types at Minnesota Valley National Wildlife Refuge by : Anthony W. Cubbedge
Download or read book Comparisons of Floodplain Forest Bird Communities Adjacent to Four Land Use Types at Minnesota Valley National Wildlife Refuge written by Anthony W. Cubbedge and published by . This book was released on 1994 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Review written by and published by . This book was released on 1994 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Midwest Fish and Wildlife Conference by :
Download or read book Midwest Fish and Wildlife Conference written by and published by . This book was released on 1993 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Avian Use of Floodplain Forest Communities Along the Upper Mississippi River by : Dillan J. Laaker
Download or read book Avian Use of Floodplain Forest Communities Along the Upper Mississippi River written by Dillan J. Laaker and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Floodplain forests along the Upper Mississippi River are known to provide valuable habitat for many species of migrating songbirds, including the Cerulean Warbler (Setophaga cerulea) and other species of concern. The forested islands of the confluence region where the Illinois and Missouri Rivers join the Mississippi vary greatly in their structure and composition, providing a variety of habitats for migrating bird species. While past studies have looked at the richness and diversity of bird species across gradients of forest structure, very few have determined which species are characteristic of certain forest types. Effective management and conservation of these lands by state and federal agencies requires that managers understand patterns of species use in these different forest communities. The objectives of this study were (1) to discover how bird community composition varies throughout the floodplain, (2) to determine which vegetation factors, structural or floristic, influence the composition of bird communities, and (3) to identify any species indicative of certain habitat types. Using a protocol developed through a partnership with the U.S. Army Corps of Engineers—St. Louis District, the Audubon Center at Riverlands, and the Cornell Lab of Ornithology, 10 minute avian point count surveys were conducted from May 15 – June 30 at 95 survey points located throughout the forested areas of the Upper Mississippi River floodplain. Data collected during the 2017 surveys were added to point count data from the 2015 and 2016 survey seasons. An invaluable tool developed by the U.S. Army Corps of Engineers’ forestry division, the Forest Management Geodatabase (FMG) was used to analyze structural complexity and vegetation characteristics at each avian point count site, including canopy height, basal area, tree species richness, and understory height. Differences in bird species richness across values of canopy height, basal area, understory height, and tree species richness were explored and tested using single-factor ANOVA. Non-metric multidimensional scaling (NMDS) was used to summarize the pattern of avian community composition among sites and analysis of similarities (ANOSIM) tested for differences in avian communities among forest types. Bird species richness did not differ significantly across values of any of the four forest variables tested. NMDS and ANOSIM found that both canopy height and basal area significantly affected bird community composition while tree species richness and understory height had no effect. Indicator species analysis was then used to identify those species that characterized certain categories of canopy height and basal area. Indicator species analysis found 21 species to be indicators across four discreet categories of canopy height and 23 species to be indicators across 4 categories of basal area. Indicator species of note included five focal species: Indigo Bunting, Prothonotary Warbler, American Redstart, Warbling Vireo, and Red-shouldered Hawk. Warbling Vireos were indicators for sites with canopy heights less than 9 meters, while Prothonotary Warblers were characteristic of sites with the largest values of basal area (> 75 m2/ha). These focal species are chosen by the Audubon Center at Riverlands and are deemed important to the region or species of concern, making them targets of conservation. The knowledge of bird species-habitat relationships gained from this study is critical for the successful management of floodplain forest in order to benefit Neotropical migratory bird species on the Upper Mississippi River System.
Book Synopsis Fish and Wildlife Reference Service Newsletter by :
Download or read book Fish and Wildlife Reference Service Newsletter written by and published by . This book was released on 1994 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Minnesota River Resource Analysis by : Wild and Scenic Rivers Program (Minn.)
Download or read book Minnesota River Resource Analysis written by Wild and Scenic Rivers Program (Minn.) and published by . This book was released on 1979 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strategies for Protection and Management of Floodplain Wetlands and Other Riparian Ecosystems by : Raymond Roy Johnson
Download or read book Strategies for Protection and Management of Floodplain Wetlands and Other Riparian Ecosystems written by Raymond Roy Johnson and published by . This book was released on 1979 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mississippi National River and Recreation Area, Minnesota: No specific title by :
Download or read book Mississippi National River and Recreation Area, Minnesota: No specific title written by and published by . This book was released on 1994 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural Areas Journal written by and published by . This book was released on 2002 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impact of Agriculture and Urban Development on the Community Structure of Wetland Birds in East Central Minnesota by : Christa R. Von Behren
Download or read book Impact of Agriculture and Urban Development on the Community Structure of Wetland Birds in East Central Minnesota written by Christa R. Von Behren and published by . This book was released on 2007 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands are one of the fastest disappearing habitats in America. Many wetlands are also being altered due to the effects of various types of land use. Because wetlands provide important habitat for many types of birds, these species can be affected by changes in wetlands due to land use. The impacts of several wetland features, including wetland size, proximity to other wetlands, and vegetation, on bird communities have been debated in the literature. While some studies have found landscape-level features, such as connectivity to other sites to be the most important factors for explaining bird diversity, others have found within-patch characteristics to be more important. It is also unclear how these variables affect rates of nest predation in wetlands. The purpose of this study was to analyze the effects of several wetland features on wetland bird assemblages and nest predation rates at several spatial scales. Bird surveys, vegetation surveys, and measurements of nest predation were conducted at the Cedar Creek Natural History Area in East Bethel, Minnesota. Landscape analyses were conducted at four different spatial scales. Results showed that wetlands are used extensively, not only by species that breed in wetlands, but by species that breed in other environments as well, particularly by woodland birds. Results also indicated that diversity in vegetation structure is associated with an increase in the number of species using wetlands. Low bird species richness in wetlands was associated with increased amounts of agriculture and urban development, which was due to the reduction in trees in agricultural and developed areas. Unlike studies of upland species, birds responded the same way to urban development as to agriculture in the landscape. Features at both the habitat level and at broader landscape scales were found to be significantly correlated with features of the bird communities, indicating the importance of implementing conservation plans at multiple spatial scales. Results suggest that for restoration and construction of wetlands, increasing the variation in both vertical and horizontal structure within the wetland and in the surrounding landscape will increase the bird diversity within the wetland. The results of this study suggest that further encroachment of development and agriculture on wetlands in East Central Minnesota will lead to a decline in wetland bird diversity, particularly with respect to woodland birds that use the wetlands for foraging purposes. The data suggest that woodland obligates will disappear first from the area, followed by sensitive wetland obligates.
Book Synopsis Influences of Adjacent Land-use on Avian Community Structure in Sub-boreal Peatlands of the Midwest by : Lucas J. Wandrie
Download or read book Influences of Adjacent Land-use on Avian Community Structure in Sub-boreal Peatlands of the Midwest written by Lucas J. Wandrie and published by . This book was released on 2012 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surrounding land use influences avian community structure; moreover, anthropogenic manipulation of habitat can alter bird species richness and composition. In the first chapter of my thesis work, I conducted avian surveys at 20 sub-boreal peatlands in eastern Minnesota and western Wisconsin to detect correlations between land development and bird community structure. Peatlands are wetlands that accumulate decaying organic plant material (peat) and provide valuable and diverse habitats to a variety of flora and fauna. I measured urban and cropland development at three spatial scales (500 m, 1000 m, and 2500 m radii). Effects of development on avian communities also were assessed with respect to distance from a major metropolis using three zones: counties inside the city (metro), counties immediately adjacent (collar), and rural counties adjacent to the collar (fringe). I predicted that the zone with intermediate levels of disturbance would have greater species richness (intermediate disturbance hypothesis) and that there would be a correlation between differences in community species composition (i.e., species turnover) and increased levels of development. Urban development influenced avian communities more than agricultural development and avian communities were different among the zones in species composition and partly in species richness. Statistical analysis identified negative relationships between urban cover and the proportion of human intolerant species at all three spatial scales. In the second chapter of my thesis work, I created a rapid-assessment model of habitat quality designed to detect relationships of landscape variables such as peatland area, degree of isolation from other wetlands, extent of adjacent economic development, and vegetative structure on bird community composition. I used rapid-assessment model, known as a hydrogeomorphic model (HGM), that numerically combines landscape features to predict the value of habitat to bird species diversity (functional capacity) Following HGM procedures, I predicted functional capacities at 20 sub-boreal peatlands When compared to observed species diversity, however, no relationship was found with predicted diversity levels. Of the model variables only vegetation structure was related to bird diversity. I suggest that a new model needs to be developed in order to assess the value of peatlands to support peatland bird communities.
Download or read book Project River Bend written by and published by . This book was released on 1981 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 1979-09 with total page 1660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mississippi National River and Recreation Area Comprehensive Management Plan by :
Download or read book Mississippi National River and Recreation Area Comprehensive Management Plan written by and published by . This book was released on 1995 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Upper Mississippi River-Illinois Waterway System Navigation Feasibility Study, Integrated Feasiblity Report by :
Download or read book Upper Mississippi River-Illinois Waterway System Navigation Feasibility Study, Integrated Feasiblity Report written by and published by . This book was released on 2004 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bird Communities and Habitat Use in Bottomland Hardwood Forests on Mingo National Wildlife Refuge, Missouri by : Joseph Alan McMullen
Download or read book Bird Communities and Habitat Use in Bottomland Hardwood Forests on Mingo National Wildlife Refuge, Missouri written by Joseph Alan McMullen and published by . This book was released on 2007 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
