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 62 for “"Swamps"”.
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Morphology and Systematics of Cordaites of Pennsylvanian Coal Swamps of Euramerica
… They were most prominent in tropical coal swamps existing from the Westphalian A-B boundary of Western Europe to the middle Desmoinesian (Westphalian D) of midcontinental United States. Structurally preserved coal-ball cordaites from Pennsylvanian Euramerican coals were analyzed for whole …
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Reproductive biology, growth and mortality of tylochromis Bangwelensis (Regan, 1920) in Bangweulu lakes and swamps complex fishery.
… growth and mortality in Bangweulu Lakes and Swamps Complex Fishery. The main objective was to determine if stocks of the species are under or over exploited in the fishery. A sampling area (S 11o 19’ 24.6” and E 029o 34’ 16.9”) that represented the main landing sites was selected. The fish …
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Interactions of insect herbivory and multiple abiotic stress agents on two wetland tree species in southeast Louisiana swamps
… defoliate up to 120,000ha of baldcypress-tupelo swamps. Restoration plans call for reintroducing Mississippi River water (diversions) to increase sediment elevation, promote natural regeneration, and enhance primary and secondary productivity. In this study, insect-tree-health relationships were …
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Studies of peat swamps in Sarawak with particular reference to soil-forest relationships and development of dome-shaped structures
… of the dome-shaped morphology of the peat swamps in Sarawak. Physical constraints confined sampling to only 11 transects with 58 cases. Besides pedological and vegetation investigations, the study also involved radio-carbon dating, and monitoring of litterfall, decomposition rate and …
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Anatomically preserved marattiales from coal swamps of the Desmoinesian and Missourian of the midcontinent United States: Systematics, ecology and evolution
Eleven species-level assemblages of stems, frond members and fertile foliage of anatomically preserved Marattiales are proposed, based on specimens in coal balls from 16 coals in the Desmoinesian and Missourian (Westphalian D and Stephanian) of the Illinois, Forest City and Arkoma Basins. Four new …
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Terrestrial paleoecology of distal deltaic environments of the upper Mississippian Bluefield, Hinton and Bluestone formations of southwestern Virginia and southern West Virginia
… Hinton and Bluestone Formations resemble earlier swamps more than those of the younger Pennsylvanian. In both Hampshire (Late Devonian, Famennian) and Price Formation (Early Carboniferous, Toumaisian) coal swamps, diversity is so low that only one taxon of plant is present: Rhacophyton ceratangium …
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Long-Term (24-Year) Effects of Harvest Disturbances on Ecosystem Productivity and Carbon Sequestration in Tupelo-Cypress Swamps in the Mobile-Tensaw River Delta
Due to the paucity of long-term harvest impact data, the primary goals of this study were to quantify the long-term effects of different harvest disturbances twenty-four years after harvest on two major wetland functions: stand productivity and C storage. This study evaluated the effects of three …
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Population Ecology and Foraging Behavior of Breeding Birds in Bottomland Hardwood Forests of the Lower Roanoke River
… (³ 2 yr old) were equally common in cypress-gum swamps and mixed oak hardwood levee forest. Pairing success and success of first nests indicated that older males occupied the most suitable territories available in each habitat. Bird density was three times greater in swamps, and birds nesting in …
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The influences of hydrology and vegetation on emergent insect and benthic macroinvertebrate communities across space and time in seasonally inundated, geographically isolated wetlands
… from February - early August 2023 in five swamps and six marshes. We hypothesized that macroinvertebrate communities would reflect adaptation to both hydrology and vegetation communities through their richness and biomass, with long hydroperiod sites and marshes having the greatest richness …
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The effect of habitat change on nutrient removal in the Atchafalaya River Basin, Louisiana
… such that lakes are transitioning to baldcypress swamps and bottomland hardwood forests. These habitats differ in their available nutrient reservoirs and the rates at which they transform and store nutrients. This dissertation investigated the major retention and removal mechanisms for carbon, …
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Water Quality Assessment in Cypress Creek Nature Preserve
Swamps are unique ecological communities that provide many valuable ecosystem services. In Kentucky, however, many swamps were altered by cypress removal and land development in their watersheds. Cypress Creek Swamp, which lies near Paducah in western Kentucky, is a good example of a swamp whose …
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Comportamento reprodutivo do Jaçanã Jacana jacana (L., 1766) (Aves, Charadriiformes, Jacanidae) no Estado do Rio de Janeiro
… a common bird inhabiting small ponds,marshes, swamps and river margins, little is known about the Wattled JacAlthough a common bird inhabiting small ponds,marshes, swamps and river margins, little is known about the Wattled Jacana Jacana jacana(L., 1766).0ur work was intended to cover some …
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Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems
… both floodplain (nutrient-rich) and depressional swamps (nutrient-poor) swamps, but results were inconclusive because the growth medium (sand) potentially hindered root growth. In floodplain forests, roots proliferated into N-rich patches but not P-rich patches, even though litterfall N:P ratios …
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Stratigraphy and deposition of the Price Formation coals in Montgomery and Pulaski Counties, Virginia
… and Merrimac coal seams were deposited in swamps formed across the sandstone.
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Home ranges and habitat selection of red-shouldered hawks in Central Maryland: evaluating telemetry triangulation errors
… frequently selected. Bottomland forests, river swamps, terrace/bluff forests, residential/structural areas, seepage swamps, pine forests, and pine/oak forests were selected occasionally by most hawks. The two most infrequently selected habitats were powerlines and upland oak forests.
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Trembling Earth
… explorations span the James River, Tidewater swamps and architecture within the city of Richmond.My work depicts local history and ecology inspired by Richmond and the surrounding region. Subtle Gothic elements add anxiety to the otherwise pastoral scenes. Gothic foreboding in the work …
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Paleoecology and Taphonomy of Middle Pennsylvanian-Age Coal-Swamp Plants: Herrin Coal-Ball Peat and Coal, Peabody Camp 11 Mine, Herrin Coal, Western Kentucky
… analyzing the flora of Pennsylvanian-age coal swamps directly from etched polished surfaces of coal. Vegetation of two coal-ball profiles and four coal-column samples from the Herrin Coal Member (Kentucky No. 11), Carbondale Formation at Peabody Coal Company's Camp 11 mine in western Kentucky …
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Forgotten Landscapes: Using Original Land Surveys to Understand the Historic Distribution of Cane Brakes in Wayne County, MS
… species, thriving in various landforms such as swamps, riverbanks, and upland forests.</p>
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