Sensitive Ecosystem Inventory Mapping App

This map displays ecologically significant and relatively unmodified Sensitive Ecosystems including wetlands, older forests and woodlands. It also includes human Modified Ecosystems that retain ecological value such as seasonally flooded agriculture fields or young forests.

The Sensitive Ecosystem Inventory was conducted from January 2010 to May 2012 across a 367,000-hectare study area covering Metro Vancouver and Abbotsford.

Sensitive Ecosystem Inventory Mapping Tool

This GIS map is currently available for desktops and tablets.  This application works best on the latest versions of: Firefox, Google Chrome, Internet Explorer, Opera and Safari and will soon be available for mobile use. Earlier versions of these browsers may experience reduced functionality. Once you open the map, select “SEI Subregions” and explore ecosystems by class and subclass. 

The SEI GIS data is available for download from Metro Vancouver’s Open Data Catalogue. For any other questions, please email

When to use the SEI Map

If you’re involved in planning, conservation or restoration programs, environmental site assessment (ESA) or corridor mapping, landscaping, development, fishing or forestry, use the SEI tool to find information about your area of interest.

This inventory may help to inform municipal environmental planning initiatives, such as:
• tree planting and cutting
• development plans and permits
• stream set-backs
• invasive species bylaws
• protected area acquisition and management
• sediment control
• urban forestry


Metro Vancouver specifically disclaims any warranties, conditions, representations, indemnities, or guarantees with respect to Sensitive Ecosystem Inventory information, whether express or implied, arising by law, custom, prior oral or written statements by Metro Vancouver or otherwise (including, but not limited to, any warranty of satisfactory quality, merchantability, fitness for particular purpose, title, error free, uninterrupted use and non-infringement), all of which are hereby disclaimed by Metro Vancouver to the fullest extent permitted by law.

For detailed information about how the Sensitive Ecosystem Inventory was created, map specifications, and limitations of use, please see the SEI Technical Report and the SEI Technical Report Executive Summary.

Note: A preliminary regional protected areas layer can be displayed within the SEI Mapping Tool. This layer shows all of the areas in Metro Vancouver that are under some form of protection. It was compiled by Metro Vancouver staff and consists of Metro Vancouver data, data provided by member municipalities, and Provincial data available on GeoBC. Because the data has been compiled from several sources, there are inconsistencies in classification, for example, schools and cemeteries may be classified as protected in some municipalities and not others. Metro Vancouver staff will be working collaboratively with member municipalities to agree on a definition for regional protection and will further improve the protected areas layer through this process.