It is a subset of Earth's aquatic ecosystems. They include lakes and ponds, rivers, streams, springs, and wetlands. They can be contrasted with marineecosystems, which have a larger salt content.
It is among the largest of Earth's aquatic ecosystems. They include oceans, salt marshes, intertidal zones, estuaries, lagoons, mangroves, coral reefs, the deep sea, and the sea floor.
It is a natural woodland unit consisting of all plants, animals and micro-organisms (Biotic components) in that area functioning together with all of the non-living physical (abiotic) factors of the environment.
Desert ecosystems are located in regions that receive an annual rainfall less than 25. They occupy about 17 percent of all the land on our planet. Due to the extremely high temperature, low water availability and intense sunlight, fauna and flora are scarce and poorly developed. The vegetation is mainly shrubs, bushes, few grasses and rare trees. The stems and leaves of the plants are modified in order to conserve water as much as possible. The best known desert ones are the succulents such as the spiny leaved cacti. The animal organisms include insects, birds, camels, reptiles all of which are adapted to the desert (xeric) conditions.
Mountain land provides a scattered and diverse array of habitats where a large number of animals and plants can be found. At the higher altitudes, the harsh environmental conditions normally prevail, and only the treeless alpine vegetation can survive. The animals that live there have thick fur coats for prevention from cold and hibernation in the winter months. Lower slopes are commonly covered with coniferous forests.
Decomposer - The decomposer microorganisms in a soil or compost cannot absorb the large polymers through their cell walls.
Consumer - Animals are consumers, they receive energy by consuming other organisms.
Ecosystem - An ecosystem is the interaction of many communities with the abiotic physical components of its environment.
Producers - Primary producers are organisms in an ecosystem that produce biomass from inorganic compounds (autotrophs).
Food chain - A food chain is a series of plants and animals each of which is eaten as food by the one above in the series.
Biotic - The biological sample taken at the test site provides an Observed Fauna from which biotic indices are also calculated.
Abiotic - The abiotic factors of the environment include light, temperature, and atmospheric gases.
Adaptation - Animals have special adaptations to survive in special environments.
Plants, animals, bacteria, and all other living organisms are some examples of biotic factors in a wetland ecosystem.
The climate of the wetlands, water, light, rocks and minerals, soil, and other abiotic factors found in all biomes are some abiotic factors in a wetland ecosystem.
Food Chains in wetland ecosystem:
Algae --> mosquito --> flog --> lizard --> snake --> eagle.
Energy enters a food chain in the form of sunlight, and leaves the food chain in the form of heat.
The arrows in the food chain represent the flow of energy through the food chain, further along the arrows means that less energy is moving along.
If one element were to be eliminated in a food chain, the element above them will eliminated because there is no food for them. The element below them will soon increase their numbers because there's no other element can eat them. Then they will eliminated because there isn't enough food for them. At last the whole food chain will not exist anymore.
Wetlands have important filtering capabilities for intercepting surface-water runoff from higher dry land before the runoff reaches open water. As the runoff water passes through, the wetlands retain excess nutrients and some pollutants, and reduce sediment that would clog waterways and affect fish and amphibian egg development.
Wetlands function as natural sponges that trap and slowly release surface water, rain, snowmelt, groundwater and flood waters. Trees, root mats, and other wetland vegetation also slow the speed of flood waters and distribute them more slowly over the floodplain. This combined water storage and braking action lowers flood heights and reduces erosion. Wetlands within and downstream of urban areas are particularly valuable, counteracting the greatly increased rate and volume of surface-water runoff from pavement and buildings.
The holding capacity of wetlands helps control floods and prevents water logging of crops. Preserving and restoring wetlands, together with other water retention, can often provide the level of flood control otherwise provided by expensive dredge operations and levees.
The ability of wetlands to control erosion is so valuable that some states are restoring wetlands in coastal areas to buffer the storm surges from hurricanes and tropical storms. Wetlands at the margins of lakes, rivers, bays, and the ocean protect shorelines and stream banks against erosion. Wetland plants hold the soil in place with their roots, absorb the energy of waves, and break up the flow of stream or river currents.
More than one-third of the United States' threatened and endangered species live only in wetlands, and nearly half use wetlands at some point in their lives. Many other animals and plants depend on wetlands for survival.
Estuarine and marine fish and shellfish, various birds, and certain mammals must have coastal wetlands to survive. Most commercial and game fish breed and raise their young in coastal marshes and estuaries. Menhaden, flounder, sea trout, spot, croaker, and striped bass are among the more familiar fish that depend on coastal wetlands. Shrimp, oysters, clams, and blue and Dungeness crabs likewise need these wetlands for food, shelter, and breeding grounds.
For many animals and plants, like wood ducks, muskrat, cattails, and swamp rose, inland wetlands are the only places they can live. Beaver may actually create their own wetlands. For others, such as striped bass, peregrine falcon, otter, black bear, raccoon, and deer, wetlands provide important food, water, or shelter. Many of the U.S. breeding bird populations -- including ducks, geese, woodpeckers, hawks, wading birds, and many song-birds -- feed, nest, and raise their young in wetlands. Migratory waterfowl use coastal and inland wetlands as resting, feeding, breeding, or nesting grounds for at least part of the year. Indeed, an international agreement to protect wetlands of international importance was developed because some species of migratory birds are completely dependent on certain wetlands and would become extinct if those wetlands were destroyed.