Low-head dams in arid regions restrict fish movement and create novel habitats that have complex effects on fish assemblages. The influence of low-head dams and artificial wetlands on fishes in Muddy Creek, a tributary of the Colorado River system in the USA was examined. Upstream, fish assemblages were dominated by native species including two species of conservation concern, bluehead sucker, ...

The use of constructed wetlands for treatment of wastewater has steadily increased in the last decades. Besides the direct benefits of water purification, these systems are also associated with high ancillary benefits deriving from the creation of a natural habitat that is aesthetically pleasant, supports local wildlife and is suitable for recreational and cultural activities. This paper aims a...

Wetlands provide many benefits, such as water storage, flood control, transformation and retention of chemicals, habitat for species plants animals. The ongoing degradation wetlands in the Great Lakes basin has been caused by a number factors, including climate change, urbanization, agriculture. Mapping monitoring across large spatial temporal scales have proved challenging; however, recent adv...

although individuals knowledge and awareness toward natural resources, especially wetlands had been increased but still social consideration level toward wetland importance, functions and sensitivity are low. considerable amount of wetlands destruction caused by miscalculation of wetlands functions’ values in a market condition. estimating the value of wetland’s function is a way in order to un...

BACKGROUND Although the effect of water level on germination in soil seed banks has been documented in many ecosystems, the mechanism is not fully understood, and to date no empirical studies on this subject exist. Further, no work has been done on the effect of water level on seed banks of drying and saline-alkaline wetlands in alpine areas on the Tibetan Plateau. METHODOLOGY We examined the...

Many regulatory authorities set water quality objectives or thresholds based on nutrient concentrations to safeguard aquatic ecosystem health. But do these criteria adequately assess the biological and ecological status? Our research has been focussing on the performance of constructed wetlands for water quality improvement and ecosystem health. In this paper we present data on macroinvertebrat...

Wetlands present an important opportunity for carbon sequestration and greenhouse gas offsets by virtue of their potential for restoration using known and innovative land management methods, because inherently they are highly productive and accumulate large below-ground stocks of organic carbon. Wetlands are major carbon sinks. While vegetation traps atmospheric CO2 in wetlands and other ecosys...

Genetic diversity as an important marker of the ecological status of aquatic ecosystems is considered a unique and powerful tool to evaluate biological communities. In order to evaluate the genetic diversity among golden mullet species (Liza aurata) in the southeast and southwest coasts of the Caspian Sea by D-Loop gene sequencing, a total of 23 fin specimens of golden mullet were collected fro...

DE STEVEN, D. (USDA Forest Service, Southern Research Station, Center for Bottomland Hardwoods Research, Stoneville, MS 38776) AND J. M. GRAMLING (Department of Biology, The Citadel, Charleston, SC 29409). Multiple factors influence the vegetation composition of Southeast U.S. wetlands restored in the Wetlands Reserve Program. J. Torr. Bot. Soc. 140: 453–464. 2013.—Degradation of wetlands on ag...