Wadden Sea

Source: Wikipedia, the free encyclopedia.

Wadden Sea
UNESCO World Heritage Site
LocationNorth Sea in Denmark, Germany and the Netherlands
CriteriaNatural: viii, ix, x
Reference1314
Inscription2009 (33rd Session)
Extensions2011, 2014
Wadden Sea is located in North Sea
1
1
2
2
3
3
4
4
5
5
class=notpageimage|
Wadden Sea:

The Wadden Sea (

World Heritage List and the Danish part was added in June 2014.[1][2]

The Wadden Sea stretches from

Saint Marcellus' floods of 1219 and 1362, Burchardi flood of 1634 and Christmas Flood of 1717. Some of these also significantly changed the coastline.[3][4] Numerous dikes[5] and several causeways have been built,[6] and as a result recent floods have resulted in few or no fatalities (even if some dikes rarely and locally have been overrun in recent history).[3][4] This makes it among the most human-altered habitats on the planet.[7]

Environment

Map showing the Wadden Sea in dark blue
Salt marsh and mudflats in Westerhever, Germany

The word wad is Frisian and Dutch for "mud flat" (

tidal creeks) and the islands that are contained within this, a region continually contested by land and sea.[8]

The landscape has been formed for a great part by

storm tides in the 10th to 14th centuries, overflowing and carrying away former peat land behind the coastal dunes.[citation needed
] The present islands are a remnant of the former coastal dunes.

Towards the North Sea the islands are marked by dunes and wide sandy beaches, and towards the Wadden Sea a low, tidal coast. The impact of waves and currents carrying away sediments is slowly changing both land masses and coastlines. For example, the islands of Vlieland and Ameland have moved eastwards through the centuries, having lost land on one side and added it on the other.[9]

Fauna

The mudflats of the Pilsumer Watt near Greetsiel, Germany
Harbor seals on Terschelling, Netherlands

The Wadden Sea is famous for its rich

geese use the area as a migration stopover or wintering site. It is also a rich habitat for gulls and terns,[10] as well as a few species of herons, Eurasian spoonbills and birds-of-prey, including a small and increasing breeding population of white-tailed eagles.[11] However, the biodiversity of Wadden Sea is smaller today than it once was; for birds, greater flamingos and Dalmatian pelicans used to be common as well, at least during the Holocene climatic optimum when the climate was warmer.[12][13] Due to human activity and a changing environment, species have gone extinct, while others are expected to migrate in.[14][15]

Larger fish including

European oyster once formed large beds in the region and was still present until a few decades ago, when extirpated due to a combination of disease and the continued spread of the invasive Pacific oyster, which now forms large beds in the Wadden Sea.[18] Especially the southwestern part of the Wadden Sea has been greatly reduced. Historically, the Rhine was by far the most important river flowing into this section, but it has been greatly reduced due to dams. As a result, about 90% of all the species which historically inhabited that part of the Wadden Sea are at risk.[19]

The Wadden Sea is an important habitat for both

cetaceans. They were once extinct in the southern part of the sea but have also re-colonized that area again.[20] Many other cetaceans only visit seasonally, or occasionally.[21][22] In early history, North Atlantic right whales and gray whales (now extinct in the North Atlantic)[23] were present in the region, perhaps using the shallow, calm waters for feeding and breeding. It has been theorized that they were hunted to extinction in this region by shore-based whalers in medieval times.[24][25] They are generally considered long-extinct in the region, but in the Netherlands a possible right whale was observed close to beaches on Texel in the West Frisian Islands and off Steenbanken, Schouwen-Duiveland in July 2005.[26] Recent increases in the number of North Atlantic humpback whales and minke whales might have resulted in more visits and possible re-colonization by the species to the areas especially around Marsdiep.[27][28] Future recovery of once-extinct local bottlenose dolphins is also expected.[20]

Conservation

North Frisian Islands, (Sylt)

A number of human-introduced invasive species, including algae, plants, and smaller organisms, are causing negative effects on native species.[29]

Each of three countries has designated Ramsar sites in the region (see Wadden Sea National Parks).

Although the Wadden Sea is not yet listed as a transboundary Ramsar site, a great part of the Wadden Sea is protected in cooperation of all three countries. The governments of the Netherlands, Denmark and Germany have been working together since 1978 on the protection and conservation of the Wadden Sea. Co-operation covers management, monitoring and research, as well as political matters. Furthermore, in 1982, a Joint Declaration on the Protection of the Wadden Sea was agreed upon to co-ordinate activities and measures for the protection of the Wadden Sea. In 1997, a Trilateral Wadden Sea Plan was adopted.[30][31][32]

In 1986, the Wadden Sea Area was declared a

biosphere reserve by UNESCO.[33]

In June 2009, the Wadden Sea (comprising the Dutch Wadden Sea Conservation Area and the German Wadden Sea National Parks of Lower Saxony and Schleswig-Holstein) was placed on the

World Heritage list by UNESCO.[34] A minor boundary modification in 2011 added the Hamburg Wadden Sea National Park to the site, and the Danish part was added to in 2014.[35] The state of Bremen, covering part of the Weser River estuary, is not participating. Conservation efforts are coordinated by the Common Wadden Sea Secretariat, seated in Wilhelmshaven
.

Recreation

People on the beach on Borkum, Germany
Mudflat hiking near Pieterburen, Netherlands

Many of the islands have been popular seaside resorts since the 19th century.

Mudflat hiking, i.e., walking on the sandy flats at low tide, has become popular in the Wadden Sea.[36]

It is also a popular region for pleasure boating.

Literature

The German part of the Wadden Sea was the setting for the 1903

Erskine Childers novel The Riddle of the Sands and Else Ury's 1915 novel Nesthäkchen in the Children's Sanitorium
.

Wadden Sea Region

The area bordering the Wadden Sea, including the

saltmarshes in the Wadden Sea area – including the Elbe Marshes
– are referred to in Germany as North Sea coastal marshes (Nordseemarschen).

More recent are terms such as Waddenland, Wadden Sea area and Wadden Sea Region. The latter term is generally understood to include all coastal regions around the Wadden Sea that participate in the trilateral cooperation between Denmark, Germany and the Netherlands. The entire area is known for its rich cultural heritage, dating back to the Roman Iron Age and the Middle Ages, and largely coincides with the area internationally referred to as Frisia.[37] Between 2002 and 2023 stakeholder organizations and NGOs from the Wadden Sea Region cooperated in a platform or association called the Wadden Sea Forum (WSF).[38]

References

  1. ^ Wadden Sea World Heritage Site. Retrieved on 29 April 2010.
  2. ^ "Six new sites inscribed on World Heritage List". UNESCO. Retrieved 23 June 2014.
  3. ^ a b "Tusinder af omkomne: Se listen over historiens værste stormfloder". Fyens Stiftstidende. 8 January 2019. Retrieved 15 December 2019.
  4. ^ a b "Stormfloder i Vadehavet". Nationalpark Vadehavet. Archived from the original on 7 February 2019. Retrieved 15 December 2019.
  5. ^ "cultural-landscape" (PDF). waddensea-forum.org. Retrieved 4 November 2021.
  6. ^ "Poster" (PDF). 1998. Archived (PDF) from the original on 2 May 2017. Retrieved 4 November 2021.
  7. ^ C. Michael Hogan (2011). "Wadden Sea". In P. Saundry; C. Cleveland (eds.). Encyclopedia of Earth. Washington DC: National Council for Science and the Environment.
  8. ISBN 0-89577-087-3
    .
  9. ^ @NatGeoNL (18 December 2018). "Wandelende waddeneilanden: hoelang blijven 'onze' eilanden nog bij ons?" [Walking Wadden Islands: how long will 'our' islands stay with us?]. National Geographic (in Dutch). Retrieved 8 September 2022.
  10. ISBN 978-0-520-25932-4
    .
  11. ^ "Havørne sætter ny rekord i Danmark". DR. 20 November 2019. Retrieved 15 December 2019.
  12. ^ Alanna MitchelA., 2009. 6-Reading the vital signs: life force. pp.78. Halifax, Canada-The fate of the fish. Seasick: Ocean Change and the Extinction of Life on Earth. University of Chicago Press. Retrieved on 29 July 2014
  13. doi:10.1111/jav.00652
    .
  14. ^ "Regional Species Extinctions - Examples of regional species extinctions over the last 1000 years and more" (PDF). archive-it.org. Archived from the original (PDF) on 25 April 2011.
  15. ^ Karsten Reise, A natural history of the Wadden Sea – Riddled by contingencies (presentation slides). Wadden Sea Station Sylt - AWI. Retrieved on 29 July 2014
  16. ISBN 9788787519748
  17. doi:10.1111/j.1365-2400.2009.00710.x
  18. ^ "Vi gider ikke spise unikke danske østers". Politiken. 23 October 2012. Retrieved 15 December 2019.
  19. ^ MacKinnon B.J., 2013. The Nature of Nature. The Once and Future World: Nature as It Was, as It Is, as It Could Be. pp.100. Retrieved on 29 July 2014
  20. ^ a b Kees (C.J.) Camphuysen. "NZG Marine Mammal Database - Sightings of cetaceans in The Netherlands and the Southern North sea". Archived from the original on 24 October 2021. Retrieved 28 January 2015.
  21. ^ metatags generator. "Cetaceans". Archived from the original on 5 April 2014.
  22. doi:10.1007/s10152-004-0208-0
    .
  23. ^ Mead JG, Mitchell ED (1984). "Atlantic gray whales". In Jones ML, Swartz SL, Leatherwood S (eds.). The Gray Whale. London: Academic Press. pp. 33–53.
  24. ^ Szaro C.R., Johnston W.D., Wolff. J.W. et al. 1996. Biodiversity of the Wadden Sea. Biodiversity in Managed Landscapes: Theory and Practice. pp.539. Oxford University Press. Retrieved on 29 July 2014
  25. ^ Wolff W. J., 2000. The south-east North Sea: losses of vertebrate fauna during the past 2000 years. Biological Conservation 95: 209-21. Retrieved on 29 July 2014
  26. ^ Kees (C.J.) Camphuysen. "WHO HAS AN IDEA WHAT ANIMAL WE ARE LOOKING AT HERE?". Archived from the original on 22 October 2021. Retrieved 1 June 2013.
  27. ^ Kees (C.J.) Camphuysen (2007). "Foraging humpback whale (Megaptera novaeangliae)in the Marsdiep area (Wadden Sea), May 2007 and a review of sightings and strandings in the southern North Sea, 2003-2007" (PDF) (Lutra 2007 50 (1): 31-42 ed.). Archived (PDF) from the original on 9 August 2014. Retrieved 29 July 2014.
  28. ^ "Springende walvis gezien bij Texel" [Jumping whale seen at Texel]. www.zeezoogdieren.org. 2008. Retrieved 28 January 2015.
  29. ^ Wolff W.J., Dankers N., Dilemma' K.S., Reijnders P.J.H., Smit C.J., Chapter 17: Biodiversity of the Wadden Sea (Denmark, Germany, The Netherlands): recent changes and future projections. pp.342. DLO - Institute for Forestry and Nature Research. Retrieved on 29 July 2014
  30. ^ "20th Anniversary of the Wadden Sea Plan | Wadden Sea". waddensea-secretariat.org.
  31. ^ "Trilateral Monitoring and Assessment Programme (TMAP) | Wadden Sea". waddensea-secretariat.org.
  32. ^ The Trilateral Wadden Sea Cooperation at waddensea-secretariat.org. Retrieved on 29 April 2010. Archived 27 February 2012 at the Wayback Machine
  33. ^ UNESCO MAB Biosphere reserves directory (last updated May 2012; retrieved 2016-07-19)
  34. Guardian.co.uk
    . Retrieved on 7 July 2009.
  35. ^ "Hamburg's Wadden Sea National Park turned 30 | Wadden Sea". waddensea-secretariat.org.
  36. ^ "Tidal flat walking". Wadden Sea World Heritage. Retrieved 23 December 2017.
  37. ^ Linde Egberts and Meindert Schroor (ed.), Waddenland Outstanding. History, Landscape and Cultural Heritage of the Wadden Sea Region, Amsterdam 2018.
  38. ^ "Wadden Sea Forum". Wadden Sea Forum e.V. 2023. Retrieved 22 April 2024. The Forum of the Wadden Sea Region, called Wadden Sea Forum (WSF) was an independent multi-stakeholder, multi-actor platform from Denmark, Germany and The Netherlands and contributed to an advanced and sustainable development.

External links

Wikivoyage has a travel guide for Wadden Sea.
Wikimedia Commons has media related to Wadden Sea.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Wadden_Sea&oldid=1220221156"