Detritivore world map (IMAGE) Penn State Caption The photographs of aquatic detritivores in this graphic represent a subset of families (ordered left to right from the most to the least abundant in the study). All over the world, detritivore populations are dwindling and disappearing at an alarming rate. Credit Bradley Cardinale Lab, Penn State Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.