Wildlife managers are concerned that insecticides used to control mosquitoes could suppress invertebrates on which wildlife feed. We assessed whether ultra-low volume (ULV) applications of pyrethrin, permethrin, and malathion for control of adult mosquitoes reduced macroinvertebrate abundance and biomass or killed mosquitofish in seasonal wetlands in California. Pyrethrin was applied over 3 sea...

Pesticides were detected regularly, but not always, in wetlands from all land uses across the entire study area, although individual sites typically contained only one or two pesticides. Herbicides were the dominant pesticides detected, as would be expected given their widespread use for controlling weeds in cropland landscapes. Fungicides and insecticides were detected much less frequently, li...

Plants that accumulate a small percentage of metals in constructed treatment wetlands can contribute to remediation of acidic, metal contaminated runoff waters from coal mines or processing areas. We examined root and shoot concentrations of elements in four perennial wetland species over two seasons in mesocosm wetland systems designed to remediate water from a coal pile runoff basin. Deep wet...

the natural beauty as well as the diversity of animal and plant life in many wetlands makes them ideal locations for tourists. it is essential to preserve wetlands in the extensive range of human activities to obtain sustainable wetlands. management planning process is a mechanism for achieve this purpose. in this study, recreational management planning with weighted linear combination (wlc) ha...

This paper presents a comprehensive review of the current state of research activities on the application of constructed wetlands for removing pharmaceutical contaminants from wastewater. The focus of the review was placed on the application of constructed wetlands as an alternative secondary wastewater treatment system or as a wastewater polishing treatment system. The design parameters of the...

As part of a larger study of mercury (Hg) biogeochemistry and bioaccumulation in agricultural (rice growing) and non-agricultural wetlands in California's Central Valley, USA, seasonal and spatial controls on methylmercury (MeHg) production were examined in surface sediment. Three types of shallowly-flooded agricultural wetlands (white rice, wild rice, and fallow fields) and two types of manage...

Constructed wetland technology has been widely applied around the world to treat domestic wastewaters from the single family home to small communities. Constructed wetlands can be classified as either surface flow wetlands (similar to natural wetlands) or subsurface flow wetlands, where the wastewater flows through a media. Subsurface flow constructed wetlands can either be horizontal flow syst...

1. A Brief History of Cultural Heritage and Sustainable Management of Wetlands 2. Wetlands: Definition and Classification 3. Ecological Functions of Wetlands 3.1. Mangroves: An Example of a Multifunctional Wetland 4. Productivity and Biodiversity of Wetlands 4.1. Productivity 4.2. Reservoirs of Biodiversity 4.2.1. An Integrated Biodiversity Reservoir: The Arabuko-Sokoke–Mida Creek Wetlands Syst...

BACKGROUND: Water quality improvement is potentially an important function of wetlands. Mechanisms that occur in wetlands, such as sedimentation, filtration, adsorption, precipitation, decomposition, and uptake and metabolism, can act to reduce concentrations of problematic water quality constituents flowing into wetlands. Similarly, streams, ponds, and lakes can act as natural treatment system...

The focus of the project was on the management of wetlands located on private property. Wetlands are increasingly recognised as being of value to society yet the history of their use in Australia has been one of widespread degradation due to grazing, cropping, clearing and draining for commercial gain. What remains of Australia’s wetlands are predominantly located on private land. The danger th...