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 “"line intercept"”.
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ASSESSING THE PERFORMANCE OF SAMPLING DESIGNS FOR MEASURING ABUNDANCE OF UNDERSTORY PLANTS AFTER FOREST RESTORATION
… Whittaker plots, Daubenmire transects, point line intercept transects, and strip adaptive cluster sampling) to estimate the cover of 24 understory species that vary in abundance. Compared to Daubenmire and point line intercept transects, modified Whittaker plots estimated cover with the lowest …
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ASSESSING THE PERFORMANCE OF SAMPLING DESIGNS FOR MEASURING ABUNDANCE OF UNDERSTORY PLANTS AFTER FOREST RESTORATION
… Whittaker plots, Daubenmire transects, point line intercept transects, and strip adaptive cluster sampling) to estimate the cover of 24 understory species that vary in abundance. Compared to Daubenmire and point line intercept transects, modified Whittaker plots estimated cover with the lowest …
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Vegetation Survey of the Yegua Knobbs Preserve, Bastrop and Lee Counties, Texas
… tract that sits on the Bastrop and Lee County lines in the Oak Woods and Prairies natural region of east-central Texas. This region is considered an ecotone where communities from the bordering natural regions, the Pineywoods to the east and the Blackland Prairies to the west, merge. A species …
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Assessment of androstachys johnsonii prain, stem utilization in Matshena Village, Mutale Local Municipality, Limpopo Province
… a measuring tape. Two methods were employed; (1) line intercept method used to document population dynamics, and (2) an ethnobotanical survey to verify the use of this plant species. The study revealed that the status of crown health was generally good; about 70% of A. john onii plant occurred in …
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Microhabitat Affinity of Blanchard's Cricket Frog (Acris crepitans blanchardi) in Rural and Urban Areas in Central Texas
… quantitatively assessed and categorized using line intercept and quadrat methods. Morphological data were analyzed by principal component analysis to depict associations of morphological characteristics to microhabitat association. I collected 424 Acris crepitans blanchardi from May to December …
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Keanekaragaman dan tutupan terumbu karang di Pulau Giligenting Kabupaten Sumenep Madura
… pada empat stasiun dengan menggunakan metode line intercept transect, kemudian pada masing – masing stasiun dibuat enam transek. Sampel diidentifikasi di laboratorium Ekologi Jurusan Biologi, Fakultas Sains dan Teknologi Universitas Islam Negeri Maulana Malik Ibrahim Malang. Hasil penelitian …
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The use of airborne laser altimetry to estimate tropical forest basal area, volume, and biomass
… laser data using simple random sampling or line intercept sampling techniques. Variants of this simulation procedure were tested using three distinct data sets acquired in and over the tropical forests of Costa Rica. On two of the three study sites, airborne laser estimates of basal area, …
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Breeding and Nesting Behavior and Habitat of the Red-billed Pigeon (Columbia flavirostris) along the Rio Grande River in Texas
… the Rio Grande River. The main cause for decline in Texas is probably habitat loss due to agricultural and urban expansion. Whil~ once common throughout the lower Rio Grande River Valley, it is now restricted to a short section of the Rio Grande River immediately below Falcon Dam where mature …
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Initial Wetland Hydrology and Vegetation Composition in Predicted Wetlands Adjacent to Lake Naconiche, Nacogdoches County, Texas
… form, were chosen for monitoring from the shoreline at 348 feet above mean sea level (ft MSL) to the county fee take line at 357 ft MSL.</p> <p>Shallow groundwater monitoring wells were installed along transects perpendicular to the shoreline at all sites to monitor hydrologic changes in order …
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Baseline data for assessing beaver dam analogs as a restoration tool in fire-affected tributaries of the Methow and Okanogan watersheds
… The objective of my research is to collect baseline data needed to assess BDA effectiveness in comparison to natural beaver dam complexes. I hypothesized that beaver dam sites would have lower channel incision, higher accumulation of fine sediment, higher abundance of wetland species, greater …
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DOUBLE SAMPLING FOR COARSE WOODY DEBRIS ESTIMATIONS FOLLOWING LINE INTERSECT SAMPLING
… to the common CWD sampling technique, line intersect sampling (LIS). We identified aggregate length as a potential auxiliary variable for estimating aggregate volume and abundance of CWD. However, further analysis indicated that the cost difference of the sampling phases, coupled with …
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DOUBLE SAMPLING FOR COARSE WOODY DEBRIS ESTIMATIONS FOLLOWING LINE INTERSECT SAMPLING
… to the common CWD sampling technique, line intersect sampling (LIS). We identified aggregate length as a potential auxiliary variable for estimating aggregate volume and abundance of CWD. However, further analysis indicated that the cost difference of the sampling phases, coupled with …
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Potential beaver colony density in parts of Québec
Three sets of linear regression models relating vegetation and hydrographic variables to observed beaver colony densities were developed for 3 study areas in Quebec where the effects of trapping on beaver densities were considered negligible. The first two study areas were located in mature …
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An Ecological Study of Mourning Doves in a Cold Desert Ecosystem on the Idaho National Engineering Laboratory
… forbs, and bare ground, as measured with the line-intercept method, in the 5-m area surrounding dove nests and paired random sites. However, a difference in the percentage of grass cover and bare ground, as measured with a point-frame, was indicated in the 1-m2 (microhabitat) centered on the …
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Forest vegetation response to the application of municipal sewage sludge in the coastal western hemlock zone
… Relative percent cover was measured using the line-intercept method and plant heights were measured every meter along the transects. Photosynthetically active radiation (PAR) was also measured to establish the light levels available to vegetation in stands of different ages. Phase I was sampled …