Indicators, World Heritage
”Indicators are measures of the attributes that allow us to determine the quality of a particular attribute, whether the condition of the attribute is within acceptable limits, and whether there are trends or changes such as uphill expansion, increased woodland mortality, etc.”
“Indicators in a woodland might include the proportion of dead to live timber; the amount of dead timber that is standing; the percentage of closed canopy, or its ratio to open canopy; the abundance of understorey; the abundance and variety of species”.
Source(s): Climate Change Adaptation for Natural World Heritage Sites – A Practical Guide