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 20 of 28 for “"Landscape Metrics"”.
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Forest fragmentation mapping, change detection, and gas well site identification in remotely sensed imagery: the role of spatial resolution
… classification accuracy, scaling relations of landscape metrics at fine resolutions were compared to previous research of Wu et al. (2002) and Wu (2004), and were found to be consistent with previous research. Landscape metrics were also used to test for statistically significant changes in the …
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Landscape pattern and blister rust infection in whitebark pine (Pinus albicaulis) at alpine treeline, Northern Rocky Mountains, U.S.A.
… of this research were: 1) to characterize the landscape structure of the treeline study sites at Divide Mountain in Glacier National Park and at Wyoming Creek in the Beartooth Mountains of Montana using landscape metrics and fieldwork; 2) to determine the frequency of blister rust infection of …
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Relationship of Ruffed Grouse Home Range Size and Movement to Landscape Characteristics in Southwestern Virginia
I addressed the effects of landscape characteristics on ruffed grouse (Bonasa umbellus) home range size and movement, and examined grouse selection for specific landscape characteristics and cover types. Grouse home ranges and movement patterns derived from telemetry data gathered from fall 1996 …
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Analysis of the One-Horned Rhinoceros (Rhinoceros Unicornis) Habitat in the Royal Chitwan National Park, Nepal.
… moderately suitable habitat, and suitable. Landscape metrics, patch metrics and class metrics associated with habitat were determined through the use of FRAGSTATS.
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Landscape patterns and patch dynamics in Hamilton county over a forty year period: applicability to the conservation of the eastern box turtle
… database is created for three study sites and landscape pattern analyzed to determine the effects of historic land use on the eastern box turtle habitat using a suite of landscape metrics. A core habitat loss model is created using the core patch metric and box turtle life history traits, home …
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Design and implementation of Web-based GIS for forest fragmentation analysis
… analyze the status of forest fragmentation using landscape metrics. Both ArcIMS HTML and Java fragmentation analysis tools were constructed. The web GIS was evaluated with respect to accessibility, navigation, interactive cartographic functionality, and spatial analysis functionality. The current …
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Synoptic Comparison of Salt Marsh Spatial Structure Using Hyperspectral Imagery at NOAA National Estuarine Research Reserves.
… site geospatial patterns were examined using two landscape metrics. The seven sites were located in a range of climates, tidal, and river discharge regimes between Texas and Delaware. |Across all sites, the NDVI and MSAVI indices were well suited for distinguishing structural differences and …
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Tracking urban growth and composition along the western portion of the U.S. - Mexico border: 1985 -2010
… Mixture Analysis (MESMA) was used with spatial metrics to compare relative quantities of vegetation, impervious surface and soil, between eight cities along the western portion of the international boundary. Three separate study areas enabled comparison of MESMA modeling techniques along a …
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Mapping Connectivity: Integrating Ecological Landscape Analysis into Urban Planning in the City of Nanaimo
… (1) identify from the literature which landscape, ecological, land use, and infrastructure considerations are important for an analysis on landscape connectivity analysis done to support local planning, 2) identify areas within the landscape matrix that may be critical for conserving and …
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Validating A Kentucky Wetland Rapid Assessment Method For Forested Riverine Wetlands Using Vegetation, Bird Surveys, And Landscape Analysis
… of biotic integrity (VIBI), bird surveys, and landscape development index (LDI). Specific objectives of this study were to: 1) determine the correlation between bird species richness, VIBI, and LDI with the KY-WRAM in forested riverine wetlands; and 2) determine which combination of vegetation …
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Spatial modelling of small mammal distributions in relation to parasite transmission in western China
… mammal distributionsare modelled in relation to landscape characteristics derived from multiple Landsat TM,Landsat ETM+ and MODIS satellite-derived datasets. Statistical models are used to identifythe landscape variables influencing the small mammal spatial distributions, and to describethe …
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Assessing the Influence of Landscape Characteristics on Bat Fatalities at South Texas Wind Energy Facilities
… of my thesis was to assess the influence of landscape characteristics surrounding wind energy facilities and around specific turbines on the number of bat fatalities. I systematically searched 200 wind turbines and collected 1,067 bat carcasses at Hidalgo and Los Vientos Wind Energy …
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Up an Urban Creek: The Role of Development Patterns in Stream Health
… v4 and correlated with stream BIBI score and the metrics that comprise the score. I assess the correlations between infrastructure intensity (road density, number of road crossings, and number of stormwater outfalls) and these response variables. The selected landscape metrics did not explain the …
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Use of GIS and Remote Sensing Technologies to Study Habitat Requirements of Ocelots, Leopardus pardalis, in south Texas
… an indication of the importance of this habitat. Landscape metrics associated with habitat used by ocelots were determined through the use of Patch Analyst, an extension for ArcView 3.2. Contrary to expectations, ocelots utilized areas with greater fragmentation than random areas available for …
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Influence Of Landscape Spatial Patterns And Land Use Planning On Grassland Bird Habitat Occupancy In Chester County, Pennsylvania
… bird decline corresponds to habitat loss, landscape fragmentation, agricultural intensification, and changes in land management. In areas where farmland is being converted, the presence or absence of grassland birds can be used to assess the availability of habitat across the landscape. …
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Ecology of spring-migrating waterfowl within the lower Wabash River floodplain
… Furthermore, I explored how local habitats and landscape metrics influenced waterfowl behavior during this important time period. I estimated peak abundances of >300,000 and >700,000 ducks during early February in 2012 and 2013, respectively. The grid-based sampling approach proved effective for …
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A multi-temporal image analysis of habitat modification in the Coastal Watershed, NH
… replace natural environments with anthropogenic landscapes. Habitat modification concerns both the loss and fragmentation of environments, and these actions can have profound effects on ecosystem function, including increasing the potential of invasion by exotic species in vulnerable landscapes. …
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Effects of Diameter-limit and Two-age Timber Harvesting on Songbird Populations on an Industrial Forest in Central West Virginia
… effects on songbirds have been conducted in landscapes significantly altered by urbanization or agriculturalization rather than forested landscapes. There is some evidence that forest fragmentation due to timber harvesting has different effects on bird abundance than fragmentation from other …
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Landscape Level Evaluation of Northern Bobwhite Habitats in Eastern Virginia Using Landsat TM Imagery
… a lack of knowledge about the broad-scale, landscape level habitats in eastern Virginia. A large scale land cover map along with a detailed understanding of the spatial arrangements of bobwhite habitats will not only aid Virginia's management plan, but also allow focused efforts by our …
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Connecting the Plots: Anthropogenic Disturbance and Mojave Desert Tortoise (Gopherus agassizii) Genetic Connectivity
… processes like movement and incorporating landscape enhances our understanding of genetic patterns. For tortoises a historically connected landscape coupled with limited dispersal produced a pattern of isolation-by-distance. This dissertation highlighted more recent genetic connectivity by: …
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