International Standards for the Practice of Ecological Restoration

Ecological restoration is the process of assisting the recovery of an ecosystem that has been degraded, damaged or destroyed. (SER 2004)


The wheel is a tool designed to assist restoration manager in evaluating the degree to which the ecosystem under treatment is recovering over time. This evaluation should be performed comparing the attribute of the degraded system to its reference ecosystem. The evaluation of each attribute is an assessment of the similarity to the reference ecosystem. A practitioner with a high level of familiarity with the goals, objectives and site specific indicators set for the project and the recovery levels achieved to date can assign the value for each sub-attribute after formal or informal evaluation. This evaluation relies on a five star rating system, assigned to 18 sub-attributes, grouped in six main attributes:

  1. Absence of threats

  2. Physical conditions

  3. Species composition

  4. Structural diversity

  5. Ecosystem function

  6. External exchanges

The average of the three sub-attributes per attribute will return the star rating for that attribute. The average of all attributes will return the summary of recovery outcome.
The five-star recovery wheel is designed to be used with the 5-star criteria listed in Table 4 of the International Standards.


This interactive version of the Recovery wheel will allow you to automatically populate the wheel by inserting values on the proforma. You'll be required to record the location, date and name of the person performing the assessment and then provide 0-5 rating for each sub-attribute. Once the assessments are complete, by pressing the "Update wheel" button, the wheel will be populated. Average star rating will appear under each attribute section and the overall star rating appears under the wheel. You can then save the wheel on your computer/smartphone by clicking on the "Download as image" button.


The recovery wheel is also available in Excel format.

This application is developed from the second edition (September 2019) of the International standards for ecological restoration. For more information Download the pdf version of the document