| − | A '''marsh''' is an environment where [[terrestrial]] and [[aquatic]] [[habitat]]s overlap. It is a [[wetland]] dominated by grasses.<ref>USGS</ref> | + | A '''marsh''' is an environment where [[terrestrial]] and [[aquatic]] [[habitat]]s overlap. It is a [[wetland]] dominated by grasses.<ref>http://www.nwrc.usgs.gov/fringe/glossary.html</ref> |