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      Biosphere Reserve Information



Photo: North Bull Island BR
  General Description   North Bull Island is located in the Dublin Bay, just 7 km north-east of Dublin City center. It represents a small island, 5 km in length, built up over 200 years ago against a man-made sea wall. The biosphere reserve is significant from a conservation perspective since it supports well-developed salt marshes and dune systems displaying all stages of development from the earliest phase of colonization to stable and full maturity. The area is also important for nesting and wintering waterfowls and is also designated as a Ramsar site.
In addition to its ecological value, the island has an important educational and recreation function valued by school classes and day visitors from Dublin. Two golf courses are situated on the island and there are some boating activities in the adjacent waters. In applying the biosphere reserve concept, the ambition is to reconcile the multiple uses in this small area.
  Major ecosystem type   Temperate coastal zone; marine wetlands
  Major habitats & land cover types   Saltmarsh with glasswort (Salicornia dolichostachya and S. europaea), Puccinellia maritima and sea lavender (Limonium humile); sand dune complex with saltwort (Salsola kali), sea rocket (Cakile maritima), sea couchgrass (Agropyron junceiforme) etc.; beaches; lagoonal sand flat; lagoonal mud flats with algae such as Enteromorpha intestinalis, E. compressa and Ulva lactuca; salicornia flat
  Location   5317'N; 0605'W
  Area (hectares)    
  Total   1,008
  Core area(s)   80
  Buffer zone(s)   186
  Transition area(s) when given   742
  Altitude (metres above sea level)   0 to +10
  Year designated   1981
  Administrative authorities   Parks & Landscape Services Division, Dublin Corporation
  Brief description   Pollution and water quality
Sedimentation rates
Salt marsh succession
  Specific variables...    
  Abiotic   Hydrology, pollution, pollutants, siltation/sedimentation.
  Biodiversity   Phytosociology/Succession.
  Socio-economic   n.a.
  Integrated monitoring   n.a.
  Contact address   Gerry Barry
Parks and Landscape Services Division
Wood Quay
 Dublin 8
  Telephone   (353.1) 672 2222
  Fax   (353.1) 670 7332
  E-mail   press@dublincorp.ie
  Web site  

Last updated: 11/01/2002

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