Experiences from the Netherlands Publishing species and habitat distribution view and download services November 26, 2015

Starting point  Dutch Article 17 Habitats Directive reports  Shape files with polygons (grid cells) indicating where certain species are present ● Distribution: actual occurrences of species or habitat type ● Range: the outer limits of the overall area in which a habitat type or species is found  Natura2000 code list 2

Example  Blue outline: range  Green polygons: distribution 3 rana lessonae

Species lookup 4 sympecma braueri

Problem 5 No longer valid species names were used in reports

Species look-up (alternative) 6 sympecma braueri sympecma paedisca

Technical implementation - basic idea  Transform WFS out-of-the-box output to INSPIRE species distribution data specification data model  Using XSLT stylesheet  Can be applied to any WFS 7

Technical implementation - software used  GeoServer ● INSPIRE plug-in ● XSLT plug-in  PostgreSQL 9.4 ● PostGIS 2.1 8

Steps  Create table to look-up Nature2000 species in PESI and EUNIS ● PESI: SOAP service ● EUNIS: SPARQL end point  Views in database to select features  Publish features using GeoServer ● Create style according to data specification for view service ● Create XSLT to transform out-of-the-box GML to INSPIRE compliant GML for download service 9

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Question (1) – invalid geometries according to validator  Some geometries are invalid according to Dutch INSPIRE validation ● Self intersections because of grid ● Have to explain why these geometries are valid 11

Question (2) – range and distribution distinction  Have to include both range and distribution features  INSPIRE data model does not contain a field to discriminate between the two types  How to include the distinction in the INSPIRE compliant GML? ● Create extension ● Harmonization needed 12

Challenge  Find an interesting cross border use case to demonstrate ● that our network services work ● the added value of harmonization 13

Thank you 14