Brownsea Island It is within the South Dorset constituency of the House of Commons and the South West England constituency of the European Parliament. Brownsea Island has built up on a bare sand and mud bank deposited in the shallow harbour. Ecological succession has taken place on the island to create topsoil able to support ecosystems. The nature reserve on the island is leased from the National Trust by Dorset Wildlife Trust. This reserve includes a brackish lagoon and area of woodland. Other ecosystems on the island include salt marsh, reedbed, two freshwater lakes, alder carr, coniferous woodland, deciduous woodland and arboretum.
Brownsea Island Scout camp National Trust. She planted a mulberry tree to mark the occasion. The Trust has continuously maintained the island since then as a conservation area. In 1964, near the original campsite were set aside for Scout and Guide camping. In 1973, a Jamboree was held on the island for 600 Scouts from seven nations, along with one of the original campers, then aged 81. The National Trust maintains the Scout and Guide campsite, South Shore Lodge and the Baden-Powell Outdoor Centre where members of Brownsea Island Scout Fellowship and Friends of Guiding operate a small trading post. The Baden-Powell Outdoor Centre