| Operational Indicator |
Trends in abundance of selected species |
| Communication Question |
State – How is the state of biodiversity changing? |
| Strategic Goal |
C |
| Headline Indicator |
Trends in abundance, distribution and extinction risk of species |
| Indicator Sub-topics |
Trends in abundance, distribution and extinction risk of species |
| Most Relevant Aichi Target |
12 |
| Other Relevant Aichi Targets |
5, 6, 7, 10, 13, 14, 15 |
| Operational Classification |
Priority and ready for use globally |
| Status of development |
Developed at the global (e.g., LPI), sub-global (e.g., ASTI) and national (e.g., Norway, Canada) level; Available for vertebrates (LPI), and for particular taxa/habitats (e.g. Wild Bird Index); in development globally for some subsets in development globally for some taxonomic subsets (e.g., Critically Endangered Bird Indicator; Global Butterfly Index); not yet developed, but planned, for other groups (e.g., population trends of threatened SRLI plants, or population trends of Alliance for Zero Extinction site-trigger species). A suitable indicator for monitoring changes in abundance of marine fishes remains elusive. Generally derived from data for better studied species (e.g. LPI), but in some cases based on systematic surveys at randomised sites for all species in particular taxonomic groups (e.g. Wild Bird Index) |
| Sensitivity (can it be used to make assessment by 2015?) |
High |
| Scale (global, regional, national, sub-national) |
G, R, N |
| Scientific Validity |
High |
| How easy can it be communicated? |
High |
| Data Sources |
Living Planet Index database, Wild Bird Index databases etc |
| Data Requirements |
At a minimum requires that population estimates from at least two data-points are derived using a comparable methodology. Ideally requires: i) choosing a representative set of species, ii) a representative set of sites, and iii) regular monitoring over a standardized time-frame. |
| Who's responsible for measuring? |
At the global level, there are existing processes to monitor and collate changes (e.g., ZSL and WWF for LPI; CAFF for ASTI; BirdLife/EBCC/USNABCI for WBI), but there is tremendous potential to encourage measurement at a national level, and to be reported by CBD national focal points |
| Other conventions/processes using indicator |
CMS |
| Related Links |
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