The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The red-crowned crane (Grus japonensis) is an endangered species only found in East Asia. Due to wetland loss and degradation, many cranes have changed their wintering feeding habitats from natural grasslands to artificial wetlands, such as rice fields. Thus we want to know whether cranes relocate the time budgets with respect to habitat, and also with the age and family size. This study was conducted...
Increased resource investment in conservation is generating greater appreciation of the importance of ecological monitoring programmes to assess the effectiveness of conservation interventions in achieving their stated goals. A key component for developing such a programme is an appropriate conceptual model of ecosystem function and the effects of human activities on this. Tropical peat-swamp forests...
Mangrove forests provide important ecosystem services, including protecting coastlines from the impacts of extreme weather events, such as storm surge and erosion. Unfortunately, these same extreme weather events also degrade mangrove forests. Currently, there are no comprehensive financial mechanisms in place to ensure that mangroves are rehabilitated following storm damage. This article explores...
Invasive plants in restored habitats can alter the system such that restoration goals are not met. Non-native lineages of Phragmites australis (hereafter Phragmites) are invasive in North American wetlands, and their presence can be problematic because of decreased species diversity and altered physicochemical processes. Phragmites is a challenging species for restoration because both native and non-native...
Wetland restoration frequently sets well-defined vegetation targets, but where restoration occurs on highly degraded land such targets are not practical and setting looser targets may be more appropriate. Where this more ‘open-ended’ approach to restoration is adopted, surveillance methods that can track developing wetland habitats need to be established. Water regime and soil structure are known...
Microorganisms play important roles in wetland ecosystems, but little is known about the influence of wetland plants on microbial community structure and activity. A greenhouse experiment was conducted to study the short-term influence of wetland vegetation on the sediment microbial community. Mesocosms were either planted with Juncus effusus, Carex lurida, or Dichanthelium acuminatum var. acuminatum...
Microbial communities in freshwater wetland soils process nitrate via denitrification (DNF) and dissimilatory nitrate reduction to ammonium (DNRA). Because the processes generate different end products (N-gas versus NH4+), the relative dominance of DNF versus DNRA has implications for ecosystem nitrogen cycling, greenhouse gas production, and downstream eutrophication. To examine how resource availability...
In this study, six mesocosms, including three subsurface flow constructed wetlands (SSF CWs) and three sand filters (without plants) were set up at the campus of Nanyang Technological University, Singapore. The objective of this study was to compare the removal efficiencies of chemical oxygen demand (COD), nitrogen (N) and total phosphorus (TP) under batch and continuous operational modes. Three factors,...
Despite the ecological, conservation, and cultural significance of Japan’s alpine and subalpine moorland ecosystems, the patterns of species composition in plant communities in these ecosystems have not been fully described. The objectives of this study were to classify and describe the species composition of moorland plant communities and to examine the relationships between the classified community...
To better understand the contribution of private lands enrolled in conservation easement programs to wintering waterfowl habitat and energetics, we evaluated effects of management strategies on seed biomass, species richness, and presence of beneficial (i.e., considered to have nutritional value to waterfowl) and introduced species on 32 Wetland Reserve Program easements in Arkansas and Mississippi...
Protocols for re-establishing Sphagnum mosses in disturbed peatlands are well established for southeastern Canada, but have not been extended to higher latitudes. We conducted two field experiments to examine how they could be applied to subarctic peatlands, disturbed by mining in the Hudson Bay Lowland, Canada. In a first experiment we tested microclimatic amelioration techniques including two local...
Seasonal ponds are common throughout forested regions of the north central United States. These wetlands typically flood due to snow-melt and spring precipitation, then dry by mid-summer. Periodic drying produces unique fishless habitats with robust populations of aquatic invertebrates. A basin’s physical/chemical features, the absence of vertebrate predation, and especially the duration of seasonal...
Accurate and informative vegetation maps are in urgent demand to support the Kissimmee-Okeechobee-Everglades ecosystem restoration project in South Florida. In this study, we evaluated the applicability of fine spatial resolution hyperspectral data collected from the HyMap sensor for both community- and species-level vegetation mapping. Informative and accurate vegetation maps were produced by combining...
In the southeastern U.S., changes in temperature and precipitation over the last three decades have been the most dramatic in winter and spring seasons. Continuation of these trends could negatively impact pond-breeding amphibians, especially those that rely on winter and spring rains to fill seasonal wetlands, trigger breeding, and ensure reproductive success. From 2009 to 2012, we monitored Spring...
Hydrologic connectivity and environmental variation can influence nekton assemblages in coastal ecosystems. We evaluated the effects of hydrologic connectivity (permanently connected pond: PCP; temporary connected pond: TCP), salinity, vegetation coverage, water depth and other environmental variables on seasonal nekton assemblages in freshwater, brackish, and saline marshes of the Chenier Plain,...
Although water table depth is commonly regarded as the primary determinant of litter decomposition rate in tropical peatlands, this has rarely been tested experimentally. This study explored the influence of flooding on decomposition of litter from three dominant plant species in a neotropical peatland. The non-flooded treatment reduced the mass remaining after 14 months from 84 to 81 % for Raphia taedigera...
Ombrotrophic peatlands are those that are purely fed by precipitation and are unconnected to groundwaters. Identification of ombrotophic peatlands is of interest because of their utility as a depositional archive, their unique botanical characteristics, and their sensitivity to climate change. Seven high elevation peatlands in the Catskill Mountains of New York state are investigated in this paper;...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.