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 77 for “"Overwinter"”.
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Overwinter survival of wild turkeys on central Virginia's industrial forests
Overwinter survival of wild turkeys on industrial forests managed for short-rotation pines (treatment) and typical Piedmont forests and farmland (control), was investigated in Virginia's central Piedmont during 1986-1988. Ninety-six percent of the turkeys (N =106) were captured in early fall with …
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Factors Limiting Overwinter Survival of Young-Of-The-Year Largemouth Bass in South Dakota
… body composition, condition index, and overwinter survival of young-of-the-year (YOY) largemouth bass Micropterus salmoides in South Dakota. Growth and condition of YOY largemouth bass stocks from South Dakota and Wisconsin were also compared. Study areas included two South Dakota …
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Assessing effects of an overwinter dewatering on the egg-to-fry survival of brown trout in a Montana stream
Natural instream flow regimes are necessary for the ecological health of streams, including the maintenance of healthy fish populations. Economic interests such as agriculture, mining, and other industries remove water from streams, which can negatively affect fish populations. Wintertime …
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Assessing effects of an overwinter dewatering on the egg-to-fry survival of brown trout in a Montana stream
Natural instream flow regimes are necessary for the ecological health of streams, including the maintenance of healthy fish populations. Economic interests such as agriculture, mining, and other industries remove water from streams, which can negatively affect fish populations. Wintertime …
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Influence of Gizzard Shad on Fish Community Ecology in Northeastern South Dakota Glacial Lakes
… edge of the native range of gizzard shad and overwinter survival of shad is often limited. However, with recent climate warming gizzard shad have been experiencing overwinter survival in some South Dakota systems where it had not been previously documented. This overwinter survival could allow …
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Comparative Ecology of Juvenile Striped Bass and Juvenile Hybrid Striped Bass in Claytor Lake, Virginia
… relationships, physiological indices of health, overwinter survival, and post-stocking predation. Both fishes preferred habitat types characterized by structure-free sand or gravel substrates, but striped bass and hybrid striped bass did not exhibit significant diet overlap during the growing …
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Seasonal habitat use and survival of brown trout (Salmo trutta) in Oatka Creek, Monroe County, New York
… habitat manipulation to reduce the severity of overwinter merganser predation on the wild brown trout population in Oatka Creek Park (OCP; Monroe County) but currently lack data to make an informed decision. My study sought to 1) quantify the availability of trout cover and habitat in OCP, 2) …
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The role of resistance to varroa destructor and deformed wing virus in the European honey bee (apis mellifera)
… discovered; Type-A, B, and C. The increase in overwinter colony losses are closely linked to DWV. At the same time DWV may also offer protection to colonies via superinfection exclusion (SIE), which may be linked to Varroa-tolerant colonies. However, the role of each DWV variant in colony …
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perennial: for winds, strings, guitar, and drums
… into four movements, with a brief interlude:i. overwinter ii. seedling : chrysalis - interlude - iii. braiding waters iv. from the soil
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Experiments on a mealybug infesting apple and a mealybug infesting catalpa
… from catalpa. 5. Some female mealybugs may overwinter in the adult form if fully protected from the weather and if the temperature does not drop below 45 °F. 6. Under optimum conditions, several mealybugs lived exceptionally long lives, passing a maximum of 145 days. 7. A color …
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Exploiting the Productivity of C4 Photosynthesis in Cool Temperate Climates: Mechanisms and Thresholds of Cold Tolerance in Miscanthus, Saccharum, and Spartina pectinata
… climates, C4 perennial grasses must successfully overwinter the first growing season and produce leaves that tolerate spring chilling and frosts to harness the long photoperiods. Although there is nothing inherently cold sensitive about the C4 pathway, cold tolerant C4 grasses are rare and the …
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Competition Between Age-0 Largemouth Bass And Juvenile Bluegills In A Virginia Pond
… could occur, depending largely on whether overwinter survival of largemouth bass is size related. Competition between largemouth bass and bluegills may explain why enhancement stocking of fingerling largemouth bass typically is not successful. Further research is needed on the appropriate …
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The impact of urban centers on American goldfinches (Spinus tristis) overwintering at high latitudes
… tristis</em>) are partial migrants that overwinter in northern regions where winters can be extreme. To understand the role of urban development in facilitating use of a harsh climate, I conducted winter point count surveys (n = 297) at urban and rural sites across latitudes in Michigan. …
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Influence of the social hierarchy on gray squirrel behavior
… a definite relationship of social rank with overwinter mortality and shock losses.
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The morphology, biology and control of Ceroplastes ceriferus (Fabricius) and Ceroplastes sinensis Del Guercio in Virginia including a redescription of Ceroplastes floridensis Comstock (Homoptera: Coccoidea: Coccidae)
… into the state but is apparently unable to overwinter. Ceroplastes ceriferus the primary species in Virginia, was originally found in Norfolk in 1942. In the past 30 years C. ceriferus has spread into 40 counties, All infestations are east of the Blue Ridge Mountains, the majority of which …
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Carbon and nitrogen mineralization in temperate forest soils at low temperatures
… study aimed at quantifying the contribution of overwinter net N mineralization to the annual net N mineralization in a temperate European beech and Norway spruce forest soil. Gross ammonification, gross nitrification, net N and C mineralization as well as the temperature response of these …
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Examining the Effects of Penning on Juvenile Eastern Box Turtles (Terrapene carolina carolina)
… another less-studied one: forcing turtles to overwinter on site by penning them in an outdoor enclosure. Two sets of juvenile box turtles were released at the Virginia Commonwealth University Rice Center: one penned on site in a pen for one year, the other allowed to move freely. Our objective …
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Characterization of winter microbial communities in the purple pitcher plant (<i>sarracenia purpurea</i>)
… years, and it is unknown whether microbes overwinter in pitcher fluid or if community structure must be reestablished each spring. This study aims to characterize the winter microbiome in two population of <em>Sarracenia</em> collected between the months of November 2012 and January 2014 in …
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