Springs ecosystems are among the most structurally complicated, ecologically and biologically diverse, productive, evolutionarily provocative, and threatened ecosystems on earth. Springs are places where groundwater reaches the earth's surface through complex, tortuous, and sometimes lengthy flow paths. Historically, they have been revered as sacred places to almost all cultures. Geologically, springs represent some of the most interesting locales available for study. Biologically, springs ecosystems exert a vastly disproportionate impact on regional ecology in relation to their size. In the...