Ecosystem Services (image) Virginia Institute of Marine Science Share Print E-Mail Caption Tidal marshes provide a number of ecosystem services and support a wide variety of wildlife. Here a great blue heron hunts along Queens Creek, a tributary of the York River in the Chesapeake Bay watershed. Credit © D. Malmquist/VIMS. Usage Restrictions One-time use only. Share Print E-Mail 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.