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 93 for “"fern"”.
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Systematics of Eastern North American Bracken Fern
The cosmopolitan Pteridium aquilinum (L.) Kuhn is widespread throughout eastern North American, where it is represented primarily by Tryon's (1941) var. latiusculum (Desv.) Underw. and var. pseudocaudatum (Clute) Heller. The taxonomy of Pteridium is controversial. Fourteen isozyme loci and 12 …
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EXPLORING LYCOPODIACEAE ENDOPHYTES, DENDROLYCOPODIUM SYSTEMATICS, AND THE FUTURE OF FERN MODEL SYSTEMS
… Lastly, I assess the status of developing fern model systems and discuss possible future directions for this work.
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Population differentiation, dispersal limitation, and local adaptation in the gametophytic fern Vittaria appalachiana
… common garden experiments to understand how a fern species will respond to global climate change. Specifically, we tested for dispersal limitation at the northern range boundary, population differentiation, and phenotypic plasticity. Our focal species, Vittaria appalachiana, is an asexual, …
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Stress adaptions of the resurrection fern Anemia caffrorum's microbiome and metabolism across seasons
Resurrection plants can tolerate desiccation for extended periods of time. So far, Anemia caffrorum is the only known resurrection plant which exhibits this phenomenon seasonally. In the wet season, its fronds are desiccation sensitive (DS) whilst in the dry season they are desiccation tolerant …
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Stress adaptions of the resurrection fern Anemia caffrorum's microbiome and metabolism across seasons
Resurrection plants can tolerate desiccation for extended periods of time. So far, Anemia caffrorum is the only known resurrection plant which exhibits this phenomenon seasonally. In the wet season, its fronds are desiccation sensitive (DS) whilst in the dry season they are desiccation tolerant …
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A 210,000-year reconstruction of subtropical climates from Fern Gully Lagoon, North Stradbroke Island (Minjerribah), Australia
… late-Quaternary multi-proxy climate record from Fern Gully Lagoon, North Stradbroke Island (Minjerribah), through the following components: • A review and synthesis of hydroclimate data from 40 Australian marine isotope stage 3 (MIS 3; 57 – 29 ka) records, allowing a continental record of …
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Transcriptional regulation of seasonal desiccation tolerance in the fronds and rhizome of the fern Anemia caffrorum
… for the production of climate smart crops. The fern Anemia caffrorum is a particularly interesting model as it is capable of seasonal desiccation tolerance. In winter, when water availability is high, desiccation sensitive (DS) fronds are produced by the rhizome. In summer, when water …
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A proteomic investigation of the rhizomes of the resurrection fern Mohria caffrorum L. (Desv.) in response to desiccation
… and desiccation-sensitive in winter. Since fern rhizomes are perennial organs, it was of interest to establish whether these organs are also perennially desiccation-tolerant and, whether or not the rhizomes regulate desiccation-tolerance in the fronds. Ultra-structural evidence using …
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Effects of fire and treefalls on Japanese climbing fern and native species groundcover in a restored longleaf pine savanna
… but also promotes invasion of Japanese climbing fern (Lygodium japonicum). Lygodium japonicum is an invasive fern with subterranean rhizomes and copious spore production invading pine savannas along the southeastern Gulf Coast Region. This dissertation examines how fire, previous windstorm …
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Vegetational Patterns in the Herrin and Springfield Coals (Middle Pennsylvanian of Illinois), Based on Miospore Profiles With Comparison to Coal-Ball Patterns
… of their source plants. One of the major tree-fern miospores, Thymospora, shows a pattern different than some of the other tree-fern miospores, especially at Sahara where it rises to second in abundance in the top zone at 29%. Thymospora is less abundant (less than 16%) in the two most complete …
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Preferential Food habits of Aplodontia Rufa
… selected for food, those species being sword-fern, salal, and brake-fern.
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Learner Modelling for Individualised Reading in a Second Language
… evaluation of a complex software system called FERN that combines learner modelling and iCALL with narrow reading of electronic text. The system incorporates four key components: (1) automatic glossing of difficult words in texts, (2) individualised search engine for locating interesting texts …
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Effects of nutrient limitation on understory communities in a tropical forest
Ferns are the second most diverse group of vascular plants whose diversity and abundance peak in mid-elevation tropical forests. Soil nutrient limitation is an important factor influencing plant communities and yet little is known about the factors influencing fern floristic composition and …
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Pengaruh pemberian kombinasi tepung keong mas (Pomacea canaliculata) dan tepung paku air (Azolla pinnata) terfermentasi terhadap produktivitas, berat, dan kadar protein telur ayam petelur Strain Isa Brown periode layer
… is the use of golden apple snail and water fern for alternative substitution of fish and soybean meal. Golden apple snail and water fern is the raw material to feed with a high protein content of balanced essential amino acids, and the numbers of these materials are abundant. The water fern …
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The Hands of Labor: Depictions of Antebellum Authorship and the Shaping of Class In the Willis Family (Nathaniel Parker Willis, Fanny Fern, and Harriet Jacobs)
… the Willis family, and especially author Fanny Fern, her brother Nathanial Parker Willis, and his servant, ex-slave Harriet Jacobs.</p> <p>While N. P. Willis portrayed the work of writing as an effortless task, depicting himself jotting down lines in ease and comfort, Fern equated writing with …
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Discover. Develop. Deliver: An investigation of innovation processes and systems within New Zealand's red meat industry
… on the emerging relationship between Silver Fern Farms (a meat processor) and the Food Design Institute at Otago Polytechnic (a culinary educational institute that undertakes new product development as part of their curriculum) in the innovation space. Incremental innovations were found to be …
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Mohria caffrorum (L.) Desv. : a new, unique model organism for the study of desiccation tolerance
… one such desiccation tolerant pteridophyte This fern has the unique characteristic of having both desiccation tolerant and desiccation sensitive forms, which alternate seasonally, which this study is the first to show. We show here that; 1) M caffrorum is indeed a desiccation tolerant fern. 2) M. …
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Radical Retreats: Sentimentalism, Separate Spheres, and the Domestic Turn in American Women's Fiction, 1850--1940
… in the works of American female writers---Fanny Fern, Elizabeth Stoddard, Jessie Fauset, and Dorothy Parker---who dramatize movement across social spaces, this dissertation characterizes mid-nineteenth and early twentieth century female movement into the public sphere as unconfident, arguing that …
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