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Seep (hydrology)
A seep is a moist or wet place where water, usually groundwater, reaches the earth's surface from an underground aquifer.
==Description==
Seeps are usually not of sufficient volume to be flowing beyond their above-ground location. They are part of the limnology-geomorphology system. Like a higher volume spring, the water is only from underground sources. Seeps mostly occur in lower elevation areas because water runs downhill, but can happen higher up if the groundwater present is abundant enough. Along with natural seeps, man made seeps can occur by digging anywhere where there is wet ground. This method can be useful for survival purposes and helps the local wildlife by adding another water source to the area.
Seeps often form a puddle, and are important for small wildlife, bird, and butterfly habitat and moisture needs. When they support mud-puddling many butterfly (''Lepidoptera'') species can obtain nutrients such as salts and amino acids, including some types that are endemic endangered species.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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