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 244 for “"Introductions"”.
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Evaluation of Brook Trout (Salvelinus fontinalis) Introductions and Re-introductions Into Four Virginia Blue Ridge Mountain Streams
… September 2008. Garth Run and Kinsey Run were re-introductions, and Wildcat Hollow and Sweet Run were new introductions. Single pass electrofishing (EF) surveys were conducted with a backpack electrofisher five times during the study. Selected trout > 70 mm but < 100 mm and all trout > 100 mm …
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Evaluation of Smallmouth Bass Introductions in South Dakota Lakes
<p>In 1989, electrofishing gear and modified-fyke (trap) nets were used to sample smallmouth bass Micropterus dolomieui during the spring from five lakes of varying environmental characteristics in eastern South Dakota. The\ mean length of smallmouth bass caught by electrofishing was significantly …
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The eco-evolutionary consequences of multiple introductions for colonizing individuals
… change-induced species range shifts, and reintroductions of rare species. Propagule pressure, which comprises the number of introduction events (propagule number) and the number of individuals per introduction event (propagule size), consistently correlates with a greater probability of …
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Restoration of threatened species populations: tuatara rehabilitations and re-introductions
… restoration in New Zealand, especially re-introductions, are typically undertaken as one-off, non-replicated, management exercises (trials). The lack of comparative controls for trials means that the reason for success or failure of management actions cannot be identified accurately and …
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Panegyrici Latinei, 6 and 7 : Translated with introductions and commentary
The j)rin;ary aim of this thesis is to make available in English for the first time a translation of, and full commentary on, the panegyrics in question. A general introduction contains sections on the collection of panegyrics known as the XII Panegyrici Latini, the term panegyricus, the uses to …
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Standardization of new product introductions to achieve zero defect lines
Consistently high quality is important to any manufacturing environment, and especially so when operating in the highly regulated medical space, which typically targets zero defects in products serving patients. The New Product Introduction (NPI) process is a complex one, with many potential …
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Evaluation of Walleye X Sauger Hybrid Introductions in South Dakota Waters
<p>I evaluated the utility of external traits for the correct field distinction between small (length) age-o and age-1 walleyes Stizostedion vitreum and saugeyes (walleye X sauger Stizostedion canadense hybrids) collected from South Dakota lakes. Fishes were collected in early fall by …
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A Contrastive Rhetoric Study of Korean and English Research Paper Introductions
… and ignores other possible ways of writing RA introductions. The CARS model is a good writing models and a good tool for the analysis of RAs; however, we might need other models or revisions of the model to describe and analyze RAs written in languages other than English.
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The Inheritance of Resistance to Tobacco Mosaic Virus in Tobacco Introductions
Thirty-one tobacco introductions that were reported to display either a local lesion or a symptomless reaction to infection with tobacco mosaic virus (TMV) were screened for reaction to the virus (Chaplin and Gooding, 1969). Ten tobacco introductions (TI), TI 203, TI 407, TI 438, TI 450, TI 692, TI …
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Plant introductions and community dynamics across environmental gradients in Great Lakes coastal wetlands
Great Lakes coastal wetlands provide vital ecosystem services, including water quality improvement, flood mitigation, and fish and wildlife habitat. However, many of these wetlands have been lost, and those that remain face various threats, including invasion by nonnative plants. Within coastal …
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Examination of the inheritance of resistance to Phytophthora megasperma var. sojae in two soybean plant introductions
Call number: LD2668 .T4 1978 K55
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The efficacy of a newly developed method of controlled calcium carbonate introductions for anthropogenic acidification mitigation in a naturally acidic riverine environment
… a method of controlled calcium carbonate (CaCO3) introductions, in order to preserve the naturally acidic riverine state and the biological communities therein, yet to prevent the river pH from falling below the H+ ion concentration critical to the survival of salmonids – pH 5.5. For the first …
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Physiological aspects of relative changes in nitrogen and plant density stress tolerances over a 38-year period of US maize hybrid introductions
<p>Incremental gains in grain yield of maize hybrids over the decades are the consequence of genotype, environment and management interactions. Historically, genetic improvements in newer hybrids have included longer active grain filling periods (achieved by advancing silking and extending …
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Predicting ecological impacts of climate change and species introductions on a temperate chalk stream in Southern Britain - a dynamic food web model approach.
… species were identified. Impacts of species introductions were assessed by adding representative model species to the food web. The largest impact was observed after the addition of a small competitor at intermediate trophic level. The addition of a top predator had moderate impact, whereas …
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Use of digital image analysis to identify <i>Rhizoctonia solani</i> and <i>Rhizoctonia zeae</i> resistance in <i>Festuca arundinacea</i> plant introductions
… and to use DIA to screen tall fescue plant introductions (PIs) for resistance to <i>R. solani</i> and <i>R. zeae</i>. There was a strong correlation (r<sup>2</sup> = 0.97) between actual disease severity, measured by applying lesioned tissue of a known area to healthy leaves, and DIA …
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Product quality regulation and innovation in the pharmaceutical industry.
… on the production function relation between introductions and research expenditures are estimated. Second, the indirect effects of regulation on research effort are estimated in a research expenditures equation. These estimates are then combined to estimate the overall effect of regulation on …
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An investigation of the effects of two modes of prereading assistance on fifth graders' literal and interpretive comprehension of selected material
… studies were Directed Reading Question introductions (tape-recorded prereading assistance given pupils which set purposes for reading by having them read to find answers for specific questions) and Cognitive Organizer introductions (tape-recorded prereading assistance given pupils which …
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