نتایج جستجو برای: cattail
تعداد نتایج: 206 فیلتر نتایج به سال:
Wetlands provide vital services on which human societies depend. As they have been rapidly degrading due to anthropogenic impacts worldwide, wetland restoration is increasingly applied. When a return the original state of constrained, forward-looking can new way enhance an ecosystem's ecological integrity. However, direction in ecosystems will develop strongly coupled initial environmental cond...
Typha domingensis tem extensa distribuição geográfica e habitat na Europa, Ásia Américas. As pesquisas sobre a espécie podem colaborar no gerenciamento de plantas aquáticas. Esta macrófita aquática possui inúmeras utilidades em todo o mundo. Em contrapartida, sua alta densidade pode resultar problemas ambientais. Desta forma, realizou-se uma abordagem revisão sistemática com análises espaciais....
Las Vegas Wash drains the Las Vegas Basin in Nevada by capturing a series of tributaries and ending in LakeMead and is being developed into an urban wetland. The soils are part of the Land series and contain high concentrations of pedogenic salts because of local sulfate-rich parent materials and high evapotranspiration rates. These salts cause damage to property, affect plant communities in th...
In an ongoing effort to trace the evolution of the sex chromosomes of Silene latifolia, we have searched for the existence of repetitive sequences specific to these chromosomes in the genome of this species by direct isolation from low-melting agarose gels of satellite DNA bands generated by digestion with restriction enzymes. Five monomeric units belonging to a highly repetitive family isolate...
I read with interest the recently published review article titled " The gluten-free diet: testing alternative cereals tolerated by celiac patients " by Comino et al. [1] in Nutrients. However, there is very sparse data on so-called minor cereals and no data on candidate wild graminoids, which have been gathered in the past. Availability of palatable gluten-free grain foods is expected to grow i...
Arsenic mobility and transport in the environment are strongly influenced by associations with solid phases. This dissertation investigates the mechanisms affecting arsenic retention in contaminated wetland and riverbed sediments. A sequential extraction procedure was designed and tested to differentiate solid phase arsenic speciation, including adsorbed As and As coprecipitated with amorphous ...
Constructed wetlands designed and properly operated for treatment of swine wastewater may enhance oxidation -reduction processes and nutrient treatment performance. The objective of this investigation was to characterize soil wetland processes related to nitrogen (N) treatment (nitrification-denitrification) and phosphorus (P) removal using soil oxidation -reduction potential (ORP) data. We eva...
Baseline information on flora is critical for planning salt marsh restoration in New Haven, Connecticut’s West River Memorial Park. This information will be important for evaluating existing site conditions and success or failure of the restoration. This chapter presents results of a plant inventory and addresses the ecological considerations necessary to return salt marsh plants to the site. A...
More than 40 years of scientific investigations of the hominin bearing Plio-Pleistocene sediments of northern Tanzania have provided a number of paleobotanical data, which, taken as a whole, provide today a way to investigate vegetation changes between 4 and 1 Ma, at a time when our early ancestors emerged. Here, I have integrated the data from all vegetation proxies obtained for the paleontolo...
INTRODUCTION Blackbirds and starlings (Sturnus vulgaris) often establish large winter roosts in areas where their presence is objectionable because of economic, public health, and nuisance reasons. Several techniques are available for alleviating roost problems, including habitat manipulation, roost dispersal with mechanical and pyrotechnic devices (Mott et al 1978), and, where necessary, direc...
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