The Leeuwarden Declaration, signed at the 13th Trilateral Governmental Conference in Leeuwarden, Netherlands, on 18 May 2018, contains key points for the 2018-2022 period of the Trilateral Cooperation on the Protection of the Wadden Sea.

The report offers greater insight into the ebb tidal deltas of the trilateral Wadden Sea ecosystem.

Wadden Sea Ecosystem No. 37. The Joint Monitoring of Migratory Birds (JMMB) Group presents 25- and 10-year trends on 34 migratory bird species up to 2013/2014. Trends of 10 sub-species are included in the progress report.

Wadden Sea Ecosystem No. 36. Results of the monitoring of breeding success in the Wadden Sea 2009-2012. The report is an important addition to the monitoring of numbers and distribution of breeding birds. The presented results allow detection of the causes for changes in numbers and can be more directly linked to management measures.

Framework and programme outline for Wadden Sea and other populations

Pop Rocks The Beatles-Ringo Starr Further prioritization of activities and identification of key players. This report proposes ten projects suitable for taking forward the objectives of WSFI.

Wadden Sea Ecosystem No. 34. The Joint Monitoring of Migratory Birds (JMMB) Group presents 25- and 10-year trends on 34 migratory bird species up to 2011/2012. For the first time trends of 10 sub-species are included in the progress report.

Vintage Posters Rosie The Riveter Jigsaw Puzzle 1000pc by Buffalo Games Wadden Sea Ecosystem No.33. Dynamic Islands in the Wadden Sea. Small uninhabited islands are still demonstrating the dynamic geological processes in the Wadden Sea. In the presented WSE the authors are illustrating with a wide variety of aspects the dynamics of 7 small Wadden Sea islands.

LEGO The Lord of the Rings Hobbit Gandalf Arrives (9469) The 12th Trilateral Danish-German-Dutch Government Conference on the Protection of the Wadden Sea was held in the town of Tønder, Denmark on 4-5 February 2014.

Annex to the Tønder Declaration, the Trilateral Climate Change Adaptation Strategy (CCAS) was adopted on 5 February 2018.

In the past almost all the West European Shelducks moulted in the German part of the Wadden Sea, where they have been systematically counted, and reached up to 200,000 birds since the late 1980s. In the last years about a quarter of the moulting Shelducks in the Wadden Sea shifted from the German to the Dutch part of the Wadden Sea for yet unknown reasons. In order to conduct a systematic monitoring of the Shelduck, which is a Natura 2000 species, in addition to German counts the presented study recommends trilaterally harmonized counts also in the Wadden Sea in the Netherlands and Denmark, if possible, combined with summer counts of (moulting) Eider.

Wadden Sea Ecosystem No. 26 - 2010. Proceedings of the 12th International Scientific Wadden Sea Symposium, 30 March - 3 April 2009 in Wilhelmshaven, Germany.

Wadden Sea Ecosystem No. 23 - 2007. Proceedings of the International Workshop on 31 August 2006 in Wilhelmshaven, Germany.

Summary, conclusions and recommendations of the international flyway workshop Wilhelmshaven, Germany, March 22-23, 2011