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 19 of 19 for “"wet year"”.
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Ecology and Conservation of Birds of Pinyon -Juniper Woodlands
… 2005. In 2004, during the drought, and 2005, a wet year, I studied avian nesting success on study plots with different levels of pine mortality. Nest predation rates were low, and no species showed any difference in nest success rates across the three sites. Grey flycatchers (Empidonax wrightii) …
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The Effects of Weather on Wetland Habitat Conditions and Shorebirds During Spring and Fall Migration in Northwest Minnesota
The purpose of this study was to compare wetland availability and relative value of private agricultural fields and CRP wetlands to intensively managed impoundments at Agassiz National Wildlife Refuge for migratory shorebirds between seasons and years with variable weather conditions. Habitat …
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Measuring and modeling suspended sediment and nutrient yields in a mixed-land use watershed of the central United States
… precipitation was observed during the four year study period (2010-2013) with the greatest suspended sediment and nutrient yields during 2010 (record setting wet year) and least yields during 2012 (extreme drought year). Estimated annual suspended sediment yields ranged from 16.1 t km-2 yr …
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Die Wirksamkeit der Kapillarsperre als Deponieoberflächenabdichtung
… landfill. The lysimeter data of three subsequent years were used for the analysis. After the growth of a closed cover of vegetation the surface runoff was negligible. Only in wet years it exceeded 2 % of the annual precipitation. In 2000 and 2001 the evapotranspiration was between 55 % and 65 %. …
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Dispersal and Harvest of Sage Grouse Utilizing the Test Reactor Area of the Idaho National Engineering Laboratory
… Grouse arrived later and left earlier in the wet year of 1980 than in the drier year of 1981. Grouse did not use the TRA in 1982. Sage grouse fed at the TRA primarily in the early morning and late afternoon and evening periods. Home range estimates averaged 109 ha for adults using the TRA in …
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Investigating rates and mechanisms of lateral erosion in a small bedrock river using erosion pins, structure-from-motion photogrammetry, and optically stimulated luminescence dating: Konza Prairie, northeast Kansas
… magnitude flow events during an exceptionally wet year. The OSL ages of fluvial deposits sourced from the strath terrace suggest that Kings Creek experienced periods of aggradation, incision, and channel migration during the late Pleistocene. Together, the annual erosion rates and OSL ages …
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Synoptic Scale Weather Patterns Associated with Annual Snow Accumulation Variability in North-Central Greenland
… models. In this study, a radar-measured 118-year annual snow accumulation record (1889-2006) along a 375 km traverse between NGRIP and NEEM ice camps in Greenland is used. A Self-Organizing Maps (SOM) algorithm is applied to a reanalysis forecast model (20th Century Reanalysis Data Version 2 …
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An Investigation of Dissolved Organic Matter in a Shallow Coastal Bay Subject to <i>Aureococcus anophagefferens</i> Blooms
… Comparison of results from 2002, a drought year, and 2003, a wet year, show that spring DOM pools differed between the two years in DOC concentration and DOM composition; however, brown tide blooms developed in early summer of both years. During all the brown tide blooms monitored, the DOM …
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Groundwater and Tidal Controls on Wetland Hydrology, Julie J. Metz Wetland Mitigation Bank, Woodbridge, Virginia
<p>Julie J. Metz Wetlands Mitigation Bank, a 92-hectare freshwater wetland located in Woodbridge, Virginia, borders the tidally-influenced Neabsco Creek. Seven pods separated by earthen berms were built by Wetland Studies and Solutions Inc. (WSSI) in 1995 and 1997 by removing the toe of small sandy …
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North American monsoon precipitation and its precursors: processes at the seasonal and diurnal scale
… and 2004 monsoon seasons (July-September), a dry year and a wet year. These years were chosen to represent contrasting precipitation outcomes to assure that results were robust across different monsoon conditions. Model precipitation was compared to precipitation from the Modern-Era Retrospective …
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Plasticidad fenotípica y diferenciación genética inter- e intrapoblacional en Quercus Suber l.: evaluación mediante caracteres fisiológicos y marcadores moleculares
… experiments during climatically contrasting years. There was a positive relationship between acorn mass/size and seedling height and survival during the early stages of the life cycle. Both acorn size and seedling survival were positively correlated to drought severity at the place of origin …
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Design and optimization of a waste rock cover system for arid environments
… ha. The climate is semi-arid with well-defined wet and dry seasons. Mean annual precipitation is approximately 712 mm with more than 80 % of the rainfall occurring between November and April. Total annual potential evaporation was estimated to be about 2300 mm. Historically acid mine drainage …
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Feasibility and Implementation Plan for Rainwater Harvesting in Peach Springs, AZ on the Hualapai Indian Reservation
… of severe water stress for part of the year and with expected climate change in the coming decades, finding additional renewable water resources is crucial to ensure safe drinking water and attain food security. Rainwater harvesting (RWH), the practice of centralizing, collecting, and …
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Effect of Evapotranspiration Rate on Almond Yield in California
… 1-3) to describe almond yield variability from year to year and almond yield variability within a year in Kern County, CA. The study evaluated 185 almond farms that were classified in three locations (east side, west side and north west side). The years of the study were 2011 (wet year) and …
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Habitat, landscape, and climate effects on riparian predator-prey interactions in a human-dominated ecosystem
… selection during the summer of a severe drought year. I collected mink scats in three seasons. In summer 2012, I performed occupancy surveys for mink and concurrently measured crayfish densities and habitat features in 59 stream segments in east-central Illinois. Occupancy modeling showed that …
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Collaborative Modeling to Assess Climate Adaptation and Science Information Needs in Snow-fed River Systems
… advancing snowmelt to earlier in the year, shifting peak streamflow, and altering surface water storage and groundwater recharge. Water management based on historical and stationary climate patterns is further challenged under a warmer climate. Participatory research approaches, such …
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Soil Moisture Measurements and Modeling at a Geomorphically Reclaimed Coal Mine in New Mexico
… and temperature for different climates (one wet year and one dry year) and aspect conditions. A population based hydrothermal time model was used to predict the seed response to environmental condition available at soil surface. Germination potential of a native plant bottlebrush squirreltail …
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THE EFFECT OF BIOTIC AND ABIOTIC FACTORS WITHIN THE SOIL ENVIRONMENT ON THE MORTALITY OF IXODES SCAPULARIS DURING THEIR OFF-HOST PERIODS
… disease. This species spends most of its two-year life cycle either questing for hosts on leaf litter and low-lying vegetation, or inactive during non-questing periods in the soil. Despite the prolonged periods this species spends off-host, the effects of the biotic and abiotic components of …
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Mojave Desert restoration: drought and facilitation influences on plant communities and soil seed banks in annual grass invaded shrublands
… shrub canopies and in open spaces) during a wet year (2020) and a drought year (2021). An additional drought year (2022) of seed bank data was collected in untreated plots to investigate how shrub facilitation and drought, as measured by the Palmer Drought Severity Index (PDSI), influenced …