Search results
Results from the WOW.Com Content Network
A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally for a shorter periods. Flooding results in oxygen -poor (anoxic) processes taking place, especially in the soils. [1]
Wetland conservation. Wetland conservation is aimed at protecting and preserving areas of land including marshes, swamps, bogs, and fens that are covered by water seasonally or permanently due to a variety of threats from both natural and anthropogenic hazards. Some examples of these hazards include habitat loss, pollution, and invasive species.
The Pantanal ecosystem is home to some 463 species of birds, [5] 269 species of fishes, more than 236 species of mammals, [12] 141 species of reptiles and amphibians, and over 9,000 subspecies of invertebrates. The apple snail (Pomacea lineata) is a keystone species in Pantanal's ecosystem. When the wetlands are flooded once a year, the grass ...
A swamp is a forested wetland. [ 1 ] Swamps are considered to be transition zones because both land and water play a role in creating this environment. [ 2 ] Swamps vary in size and are located all around the world. The water of a swamp may be fresh water, brackish water, or seawater.
A fen is a type of peat -accumulating wetland fed by mineral-rich ground or surface water. [1][2] It is one of the main types of wetland along with marshes, swamps, and bogs. Bogs and fens, both peat-forming ecosystems, are also known as mires. [2] The unique water chemistry of fens is a result of the ground or surface water input.
Riparian zone. A riparian area is the transition from the aquatic area to the upland area. Vegetation is expected to change from species adapted to wetter sites near the channel to species adapted to drier sites in the upland, with a mixture of species occurring in between. In this example, an assessment of riparian function would consider the ...
Freshwater ecosystems are a subset of Earth's aquatic ecosystems. They include lakes, ponds, rivers, streams, springs, bogs, and wetlands. [1] They can be contrasted with marine ecosystems, which have a larger salt content. Freshwater habitats can be classified by different factors, including temperature, light penetration, nutrients, and ...
Vernal pool. Vernal pools, also called vernal ponds or ephemeral pools, are seasonal pools of water that provide habitat for distinctive plants and animals. They are considered to be a distinctive type of wetland usually devoid of fish, and thus allow the safe development of natal amphibian and insect species unable to withstand competition or ...