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 23 for “"groundcover"”.
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Arthropod assemblages on longleaf pines: a possible link between the red-cockaded woodpecker and groundcover vegetation
… which RCW reproductive success is linked to the groundcover composition of the forest (which is a reflection of the forest's fire history). This is possible because it has been shown that much of the arthropod community found on longleaf pines originates from the forest floor. If the arthropod …
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Groundcover Management System and Nutrient Source Impact Physical Soil Quality Indicators in an Organically Managed Apple Orchard
<p>In March 2006, four groundcover management systems (GMS) and two nutrient sources (NS) were implemented for their ability to alter the soil physical condition of a newly established, organically managed apple (Malus x domestica Borkh.) orchard. Annual applications of municipal green compost …
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Groundcover, rootstock and root restriction effects on vegetative growth, crop yield components, and fruit composition of Cabernet Sauvignon
Wine vineyards in humid environments like the mid-Atlantic United States are characterized by vines that develop too much vegetative growth for optimum quality wine production. Cover crops, rootstocks and rootzone restriction were evaluated for their effect on vegetative and reproductive growth on …
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Effects of fire and treefalls on Japanese climbing fern and native species groundcover in a restored longleaf pine savanna
… fern genets survive subsequent fires. Native groundcover species abundance and composition was also transiently influenced by fire severity, as examined in a post hoc fuel manipulation study. Abundance and composition of native species within localized areas differed based on heterogeneity of …
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Managing rangeland change in New South Wales for landscape repair
… towards using remote sensing products to monitor groundcover as a proxy for dust, allowing more flexible and adaptive monitoring regimes. This in turn creates an opportunity to extend these remote sensing products to monitoring at paddock-scales, thereby informing timely land management …
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Recovery of Channel Morphology and Benthic Macroinvertebrate Assemblages after Livestock Exclusion
… characteristics were quantified by measuring groundcover biomass, shrub crown volume, tree density and diameter, soil bulk density, and particle-size analysis. Benthic macroinvertebrates were collected with a D-frame dip net and quantified using the Virginia Stream Condition Index (SCI), and …
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Assessing Habitat Quality for the Endangered Red-cockaded Woodpcker
… of small and medium pines, and a lush herbaceous groundcover. Variables positively associated with habitat use and fitness were associated with reduced home range size, and those negatively associated with habitat use and fitness with increased home range size. Percent herbaceous groundcover was a …
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Soil erosion and suspended sediment dynamics in intensive agricultural catchments
… available as a result of hillslope land use (low groundcover) or channel characteristics. Field topsoils were most vulnerable when low groundcover coincided with surface hydrological pathways; frequently on poorly-drained soils and following extreme rainfall events on well-drained soils as storage …
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WHITE SPRUCE (PICEA GLAUCA), MOOSE (ALCES ALCES) AND THE ORIGIN OF A ZOOTIC DISCLIMAX COMMUNITY ON ISLE ROYALE
… may produce novel landscapes dominated by the groundcover layer. I investigated the response of woody species to savannas which have emerged in Isle Royale National Park as a result of moose herbivory. I used dendrochronological methods and microsite plots to describe the spatial, temporal, and …
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Mitigating Rice Injury Caused by Florpyrauxifen-Benzyl and Optimizing Florpyrauxifen-benzyl Rate and Timing for use in Furrow-Irrigated Rice
… of yield loss, delay in maturity and loss of groundcover as well as questions regarding the ability of florpyrauxifen-benzyl to be applied with other herbicides that may cause injury led to the necessity for more research across cultivars and hybrids. Prior research also highlighted the …
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Relationship between construction waste generation and recycling practices in Southern Johor
… item is timber is used for erosion control and groundcover (T15). The less correlated item is the unused sack bags as pots to grow small plants (P35). Therefore, timber is the highest recycled material in the construction site compared to metal, concrete and packaging materials. This study …
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SEED BANK DYNAMICS WITHIN A METAPOPULATION FRAMEWORK: A STUDY OF AN ANT-DISPERSED SPECIES
… plants, but instead corresponded to increased groundcover at sampling locations.<strong></strong></p> <p><strong>Conclusions. </strong>Results indicated seed distribution is not random but reliant upon spatial and temporal predictors. Increased seed presence in relation to adult-plant habitat …
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Conservation biological control in a multi-strata agroforestry system
… were unchanged. Mowing did cause arthropods in groundcover to use shrubs and trees as refuge habitat. However, the shrubs and trees that offered suitable refuge were alternate hosts to pest insects. Mowing thus increased abundance of pests but not enemies, likely resulting in higher rates of …
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Vines of different capacity and water status alter the sensory perception of Cabernet Sauvignon wines
… vine size and water status were under-trellis groundcover, root manipulation, rootstocks, and irrigation. Treatments were arranged in a strip-split-split plot design before the introduction of the irrigation treatment resulted in incomplete replication in each block. Treatment levels were …
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There might be a frog in McElligot's Pool: a study of the habitat characteristics and social factors associated with amphibian presence in urban residential gardens in a suburb in Cape Town
… to gardens with moderate to dense vegetation at groundcover level. Gardens with moderately planted beds were more likely to report frogs if they had additional resources, in particular, ponds and mulch. The "How" question brought together the two themes in a discussion on citizen mobilization and …
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Integrating Geospatial Technology and Ecological Research in the Analysis of Sustainable Recreation Infrastructure
… in vegetation composition, tree cover and groundcover from 1982 to 2014 were measured. Paired t-tests analyzed significant ecological differences on campsites and paired controls over time. Best management practices for managing campsites for the long-term are suggested. The second article …
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Habitat use and activity patterns of Gopher Tortoises (Gopherus polyphemus) inhabiting military test ranges and forested sandhills at Eglin Air Force Base, Florida
… were highly species diverse in terms of groundcover plants, and had herbaceous communities that shared a number of common sandhill plant species with forested sites, but also were unique in a number of ways. I also found that adult tortoises (burrow site selection) and juvenile tortoises …
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Restoration planting options for Pinus flexilis James in the southern Rocky Mountains
… basal area in the surrounding stand and percent groundcover of trees in the microsite. Presence of natural P. flexilis regeneration in transects was not correlated with planted seedling health. In conclusion, for best growth and survival in the first three years after planting, P. flexilis …
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Generalist predators in reduced-tillage corn: predation on armyworm, habitat preferences, and a method to estimate absolute densities
… species preferred the treatment with the most groundcover. Pitfall trap catches over a three-day period indicated that predator activity was significantly higher during the day than night in all treatments. However, a laboratory study provided evidence that night activity in the field may have …
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The Suitability of Native Warm-Season Grasses for Equine
… 30%, and trampled forage constituted 36-68% of groundcover in those plots after each grazing bout. Horses lost weight on all treatments, but tended (P=0.09) greater weight loss on the indiangrass treatment at 1.5 kg/d compared to 0.5 kg/d in the BB and EG treatments. For the third objective, …
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