Proposals of some general rules (DEMNA, INBO, IBGE/BIM, FOD) How to integrate data from three (or more) administrative regions? A case study: Belgium Proposals of some general rules (DEMNA, INBO, IBGE/BIM, FOD) J.-M. Couvreur Expert Group on Reporting Meeting 20 th March 2013

3 Administrative Regions with 3 institutions (+ federal level dealing with marine habitats) => Different methodological approaches

Ex: 3150 (Permanent eutrophic lakes, ponds and pools )

Ex: 3150 (Permanent eutrophic lakes, ponds and pools )

Ex: 3150 (Permanent eutrophic lakes, ponds and pools )

The general rules suggested (Source of inspiration: ‘ Guidelines for assessing conservation status of habitats (2008) and species at the biogeographical level ’ ETC/BD (EEA)) 1) Method used (1.1.2., 2.3.2., 2.4.3. and so on) when different: W or Fl Integration 1 3 2 2) Year or period (1.1.3 ; 2.3.3. and so on) when different : we integrate the widest period. Ex : 1998-2012 and 2007-2012 => 1998-2012

The general rules suggested are (2) : 3) Reason for change  (2.3.10. for example) : if they is one ‘YES’ => ‘YES’. Reasons for change: genuine, improved knowledge, use of different method? W or Fl Integration YES NO

The general rules suggested are (3) : 4) Trends (2.4.5. ‘Area’ for example) If values available: Take into account the assessments in each administrative region Sum the values of each administrative region Produce the final assessment. Proportion of habitat/population in each administrative region? If at least 1 ‘unknown’: ‘majority’ in one region (ex: >75%) Almost equal (+/- 50%) in each region Final ‘trend’ = trend of the majority Final ‘trend’ to be discussed between experts! Either ‘unknown’ or ‘increasing/decreasing’!

The general rules suggested are (4) : 5) Threats and Pressures (2.5 and 2.6) - Sum the lists from administrative regions => More than 20? More than 5 with ‘H’ ranking => Discussion between experts! - If same Pressure/Threat with different ranking => if ‘majority’ in one administrative region => ranking of that region => if almost equal in each region => discussion between experts!

Ex: 3150 (Permanent eutrophic lakes, ponds and pools )

Thank you for your attention!