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Showing 1 to 20 of 72 for “"Typha"”.
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Threshold for complete submergence of Typha domingensis.
The survival of Typha domingensis under complete submergence was investigated by observing and recording vegetation data in a constructed wetland after a natural flood, followed by two controlled experiments designed to simulate deep flood conditions. In the observational study, rhizomes from 750 …
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Managing Cattail (Typha latifolia) Growth in Wetland Systems
… and soil management effects on cattail (Typha latifolia) growth in wetland systems were examined. Soluble reactive phosphorous (SRP), nitrate-nitrogen (NO3-N), and ammonia-nitrogen (NH3-N) removals were tested at a constructed wetland receiving municipal wastewater effluent. Over all, no …
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Biotic Responses on Typha-monodominant Semipermanent Wetlands To Cattle Grazing
… shifts since emergent species such as Typha persist under flooded as well as drought conditions. Numerous techniques to control cattails such as burning and herbicide application have been suggested. The objective of this study was to test the use of cattle grazing as a method of …
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What environmental variables limit Typha expansion in Cape Flats wetlands?
The explosive expansion of Typha capensis into the wetlands of the Cape Flats has resulted in decreased species diversity and habitat value. Several initiatives to control this expansion have had varied success and management of wetlands dominated by T. capensis remains a challenge. For effective …
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Investigations on the effects of Typha capensis on male reproductive functions
Introduction Typha capensis, commonly referred to as bulrush also called „love reed‟ growing in Southern Africa‟s wetlands, is one of South Africa indigenous medicinal plants that are traditionally used to treat male fertility problems and various other ailments. Previous studies revealed that T. …
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Understanding morphological responses of <em>Typha</em> (cattail) species to nutrient pollution
1 PDF file (vii, 40 pages)
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Wetland and terrestrial phytoremediation of an end-of-life municipal lagoon using cattail (Typha spp.)
… Studies were conducted to quantify cattail (Typha spp.) biomass and nitrogen (N) and phosphorus (P) phytoextraction from biosolids in (i) a wetland constructed in the former primary cell and (ii) a dewatered secondary cell of an end-of-life municipal lagoon. Overall, the phytoextraction of N …
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Shade, Moisture, and Woody Vegetation in Stormwater Management Basins: Influence on Cattail (Typha spp.) Growth
… basins often retain water; resulting in cattail (Typha spp.) and tree colonization. Managing agencies request cattail eradication and trees are also removed. However, if trees were allowed to remain they could alter basin dynamics, making conditions unsuitable for cattails. In a greenhouse study …
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The ecology and control of typha capensis in the wetlands of the Cape flats, South Africa
Typha capensis is indigenous to the Cape, but is thought to be threatening Cape Flats wetlands through invasion and encroachment. This thesis establishes the extent of such encroachment and investigates aspects of the phenology, life-history, growth, production and decomposition of the species in a …
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Characterization of the autotrophic component in periphyton upon <i>Typha angustifolia</i> detritus in a freshwater wetland
<p>The autotrophic component of periphyton on <em>Typha angustifolia</em> detritus was characterized in a freshwater wetland during a single growing season. 58 genera of algae and cyanobacteria, representing six divisions, were observed throughout the study period. Although the combined …
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The effects of dormant season burning and flooding on invasive cattail, Typha x glauca, on Rainy Lake and Lake Kabetogama in Northern Minnesota
<p><em>Typha x glauca</em> is one of the most invasive plants in North America. The plant exhibits hybrid vigor and displaces native flora by rapidly forming dense monotypic stands that can break free from the substrate and form floating mat types when established. I tested the effects of …
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Effects of invasion by the common reed (<i>phragmites australis</i>) on carbon transformations in a Great Lakes marsh
… Phragmites</em> invaded and pre-invaded <em>Typha</em> sites. Less litter mass was lost from <em>Phragmites</em> than <em>Typha</em> in both sites during the initial 144 days. Annual mass loss from both species’ litter was greater in the <em>Phragmites</em> site. Lower water levels resulted …
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Annual secondary production of fungal and bacterial decomposers associated with standing and benthic litter of the freshwater emergent macrophyte, <i>typha angustifolia </i>
… cycling and energy flow. Naturally-occurring <em>Typha angustifolia</em> detritus was collected to determine annual areal carbon flow through secondary decomposers. Two decay phases, standing-dead and benthic litter, were analyzed concurrently to determine fungal (<sup>14</sup>C-acetate …
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The effect of development on seasonal wetlands on the Cape Flats, Western Cape, South Africa
… altered the nature of seasonal wetlands and that Typha capensis can be used as an indicator of the ecological value or integrity of these wetlands. Two case studies have been selected to test this premise. The various interrelationships between vegetation, hydrology, nutrients, land-use and …
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Dynamics of cicrobial communities associated with <i>Typha angustifolia</i> (cattail) litter in a wetland ecosystem: Effects of litter manipulations on microbial decay processes
… with litter of the emergent macrophyte Typha angustifolia. Plant litter was harvested after senescence and after a period of standing-dead decay. This collected litter was either air-dried or oven-dried, placed into fine mesh (1 mm) litterbags, and submerged in the wetland. Litterbags …
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Lake Erie coastal marsh aquatic invertebrate community structure across habitats dominated by two different emergent macrophytes
… australis</em> and areas dominated by <em>Typha spp</em>. in a freshwater coastal marsh. The hypothesis was that aquatic invertebrate diversity and abundance would be greater in <em>Typha</em>-dominated locations as opposed to <em>Phragmites</em>-dominated locations. Sampling took place at …
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Coastal sedge/grass meadow restoration in a peri-urban wetland via alteration of environmental filters: can hydrological constraint be trumped?
Stabilized lake-level influence on Typha x glauca has so diminished the extent and richness of Lake Ontario shoreline sedge/grass meadows that they no longer conform to an historic trajectory. These conditions are not likely to change in the foreseeable future, so novel actions may be required to …
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