Amphibian (1 of 2) (IMAGE) University of Missouri-Columbia Caption Amphibians may be critical for the transfer of nutrients, such as nitrogen from ponds and streams into the uplands for consumption by plants and other forest creatures. Credit Photo courtesy of Dr. Semlitsch. 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.