Instead , a few indicator species can be monitored to determine the success of the restoration .
For example , it would be expensive and time - consuming to count every bird , plant and animal in a newly restored wetland to see if the restoration was a success .
A few indicator species can be monitored to determine the success of the restoration .
For example , it would be expensive and time - consuming to count every bird , plant and animal in a newly restored wetland to see if the restoration was a success .