Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"grassland management"”.
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The effects of grassland management practices, and the role of hedgerows, on farmland carbon sequestration and storage
… is included in national GHG inventories. Land management decisions, such as those taken in agricultural landscapes, play a crucial role in carbon cycle dynamics with the ability to convert land from a carbon source to carbon sink. Practises influencing carbon sequestration and storage of land …
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Effects of grassland management on snake species diversity and habitat use, home range & movements of western fox snakes
… prairie. Wildlife associated with prairie and grassland has concomitantly declined or become critically imperiled. In Illinois 12 snake species are associated with grassland habitat and, of these, three are of conservation concern. To prevent continued declines of grassland snakes, conservation …
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Measuring grassland response to management using optical remote sensing
Grassland ecosystems cover a large portion of the Earth surface and have similar economic and ecological values as croplands and forest ecosystems. To sustainably provide ecosystem services through grasslands, grassland management bridges the connection between the provision of grassland services …
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Interactive effects of climate change and management on grassland greenhouse gas emissions
… and a range of other ecosystem functioning in grasslands. This will be particularly important for the sustainability of agricultural ecosystems due to its role in global food security and soil C sequestration. The interaction between climate warming and grassland management is highly important …
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Resource selection, movement patterns, and survival of post-fledging grassland birds in Missouri
Current grassland management paradigms focus on addressing nesting requirements for grassland birds, but ignore post-fledging requirements. I described resource selection, movement patterns, and survival of dickcissels (Spiza americana) and eastern meadowlarks (Sturnella magna) in southwestern …
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Floristics, Conservation, and Restoration of Virginia's Piedmont Grasslands
The native grasslands of Southeastern North America contain higher native plant diver- sity than the prairies of the Great Plains, but they have lost 90-99% of their historic range through disruption of their natural disturbance regimes and conversion to agricultural lands. To inform the …
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Nest predation and habitat selection in the grasshopper sparrow (Ammodramus savannarum)
… unambiguous measures of selection. I studied how grassland management with fire and grazing influences predator-specific patterns of nest loss and whether predation influenced nest-site selection by grasshopper sparrows (Ammodramus savannarum). I used near-infrared video cameras to identify nest …
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Root Dynamics, Management Effects and Carbon Sequestration on Invaded and Native Semi-Arid Grasslands
… die between the samples. Also, root responses to grassland management such as mowing are less well-known than shoot responses, even though as much as 83% of productivity in semiarid grasslands occurs belowground. Finally, the belowground dynamics of invasive species that change the vegetation of …
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Habitat selection and breeding ecology of grassland birds in areas managed with fire and grazing
Conversions of grasslands to row crop agriculture over recent decades have contributed to steep declines in grassland bird populations in the Midwest. On top of habitat loss, the cessation of historic disturbance regimes on remaining grasslands has served to homogenize vegetation structure. Because …
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TREE PLANTING STRATEGIES AS NATURE-BASED SOLUTION FOR THE PROVISION OF ECOSYSTEM SERVICES
… evidence-based approaches to guide planning and management across different landscapes and scales. This thesis investigates the ecological and social benefits of tree-based interventions through three complementary studies. • CHAPTER 1: Urban afforestation and meadow management as key drivers for …
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The landscape ecology of brown hares and European rabbits in pastures in the north east of England
… may have been caused by changes in agricultural management. This study aims to identify hare distribution, density, habitat selection and demography in grasslands in order to benefit their future conservation. In addition, this study aims to investigate the impact of current agricultural …
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EFFECTS OF SCALE AND HABITAT MANAGEMENT ON GRASSLAND BIRD RESPONSE IN CONSERVATION RESERVE PROGRAM FIELDS IN NORTHWEST ILLINOIS
North American populations of grassland birds have been declining consistently for the past several decades. Grassland birds respond to multiple scales which encompass a spectrum of habitat variables, and the habitat scale of importance may depend on the response of interest. For practitioners, …
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Plant community assembly and biodiversity: a spatio-temporal perspective
… functional) were characterized in semi-natural grasslands (in plots of 0.5 × 0.5 and 2 × 2 m, and whole grassland polygons). The extent to which the present-day and historical characteristics of the sites and their surrounding landscape explain the current diversity patterns was quantified. …
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Going through the motions : the impacts of frequent fires and grazing pressure on reproduction of Montane grassland birds
Land management practices have been implicated as a cause for the decline of many grassland-nesting birds across the globe. While this effect has motivated extensive research and conservation in the developed northern hemisphere, it remains poorly addressed in southern hemisphere. Between 1998 and …
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Social and ecological dimensions of non-native grass management in working landscapes
Many grasslands are working landscapes, defined as environments where economic productivity has the potential to coexist with other ecosystem services, including biodiversity. However, biodi-versity in working grasslands is threatened by the dominance of non-native grasses used as cattle forage. …