It is evident that a variety of approaches are used by countries in order to assess their progress towards the Aichi Biodiversity Targets in Part III of their National Reports. This document aims to identify and summarise these approaches, and the strengths, limitations and considerations for use of each of these.
This report has compiled an evidence base for the existence of national and regional indicators in relation to the 2010 Biodiversity Target, and whether these might be relevant to the new Aichi Targets, but it does not aim to identify which indicators might be needed or suitable for the Aichi Targets. Similarly, the report does not consider the specific data needs and sources for possible indicators for the Aichi Targets. The latter subject is addressed by the GEO‐BON report “Adequacy of Existing Biodiversity Observation Systems to support the CBD 2020 Targets”, which is also designed to support the 2011 AHTEG on indicators.