The EcoTrends Project is designed to promote and enable the use and synthesis of long-term data to examine these trends in the Earth's ecosystems.

The EcoTrends project is a collaborative effort among state and federal agencies and institutions, at present primarily in the US, to make long-term ecological data easy to access, analyze, and compare within and across sites. This website is a portal to:

• a large and diverse collection of standardized long-term ecological datasets and their metadata (> 1200 datasets)
• unique data exploration, download, graphing and synthesis tools
• information about participating research sites and their parent agencies

These datasets, tools, and information are available to anyone who would like to: view trends in ecological variables for one or multiple sites or pursue additional statistical analyses of within-site and cross-site comparisons.