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Biodiversity Accounting

This presentation explores how state and trends of biodiversity are typically communicated, the challenges of fragmented data presentation, and the need for biodiversity indices to reflect overall trends. It also highlights the use of statistical and species indices, as well as the Nature Index, in assessing biodiversity. The importance of integrating existing knowledge and the adoption of biodiversity indices in policy-making are discussed.

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Biodiversity Accounting

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  1. Biodiversity Accounting Per Arild Garnåsjordet Statistics Norway Presentation Melbourne May 18 th. 2012

  2. How is state and trends of biodiversity usually communicated? • Overview reports: • Indicator by indicator is presented, species by species. • The overview is presented as text only • Also, lack of overview • Only crisis are reported in the media and to the public • Why this fragmented presentation? • Lots of biodiversity data (monitoring, research, observation knowledge) • Data been gathered with different methods • Monitoring often focuses on bad areas, not area representative • Data not easily accessible • Not any good methods for integrating existing knowledge (data, expert judgement and research results) • A system of biodiversity indices: • Is cost-effective if we can use as much of existing knowledge as possible • Reflects the overall trends without giving focus to a particular species

  3. Biodiversity Indices - a scientific method Statistical Indices: The Simpson Index (1948), The Shannon Index 1949 Simple species Indices:Wild Bird Index (1970),Living Planet Index (1970), Red List Index More Complex Indices: Index of Biotic Integrity (1981), The Marine Throphic Index (1988),The Water Quality Index (2001), The Natural Capital Index (2002). The Biodiversity Intactness Index (2005), 2006,2008), Mean Species Abundance Index (2009), The Nature Index (2011)

  4. 5 national research institutes +Statistics Norway125 ResearchersInternet based data-collection1950, 1990, 2000, 2010, 2020309 indicators S = State W= Weighted at trophic level t= time i= species j= ecosystem k= municipality, area Uncertainty: 25 and 75 % quartiles

  5. Data entered online A National Expert or an Expert group for each indicator Monitoring data Research Unpublished reports or notebooks Field observations

  6. The indicatorvalue is scaled by itsvalue at thereferencestate; • Intact nature • Nature with low human impact • Sustainable populations • Carrying capacity LOW model (default model) MAX model

  7. What kind of data have been used?

  8. Only natural species, no alien species Values scaled 0 -1, where 1 is intact ecosystems

  9. The Nature Index on the political agenda • Nature Index was published in 2010 after a 3 year period of development. Initiated and financed by the Government • Adopted as an indicator of sustainable development by the Ministry of Finance 2011 • Adopted as indicator of major ecosystems by the Ministry of Environment 2011. Rearranged their management issues

  10. Earth from Saturn

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