by Me­chas — I have re­cently come across sev­eral ar­ti­cles that men­tion work with en­vi­ron­men­tal DNA, ab­bre­vi­ated with the catchy term eDNA. As a mi­cro­bi­ol­o­gist, I am fa­mil­iar with the term metage­nomic DNA, which refers to the ge­netic ma­te­r­ial from a mixed com­mu­nity, and there­fore won­dered, are these terms equiv­a­lent?