2000-Once observations of declined populations made, more surveys and research conducted. 2006- Upon confirmation of declining population, many consultations made with locals, village chiefs and district community. The operation itself was followed by a community-led programme to prevent rats reinvading the islands. Notification- all crabs on and near the islands will be toxic for a period and were ban for taking. Period of ban made longer than strictly neccessary to ensure no harmful effects and to significantly benefit local coconut crab populations. Inclusion- community member were able to assist in the operation 2000 Decline noticed. Research conducted 2006 Consultations conducted i.e whether it was feasible etc. 2008 aerial operation being planned 2009 execution of operation 2010 and ongoing moitoring.
Nola Talaepa and Moeumu Uili National University of Samoa
Plants - 500 species of nature flowering plants - 220 species of ferns - 25% of the plants are endemic to Samoa - 500 or so species of plants been introduced - Today, half of the plants are exotic
Mammals Terrestial: 13 species - 3 are native: 2 flying foxes- Samoan Flying fox, Tongan or White necked Flying fox, small insectivorous bat – Sheath-tailed bat. - introduced species: * Polynesian rat ( Rattus exulans ) * Pigs and dogs * cattle, horses, goats, cats * 2 more species of rats ( R. norvegicus and R. rattus ) * house mouse
- 14 were recorded as “ rare or endangered” Reptiles - 2 species of turtle: green turtle and the hawksbill Marine: 991 species - 890 inhabit shallow water or reefs - 56 in deeper water - 45 are pelagic
Marine: - several whale species - 1 dolphin: spinner dolphin - Humpback whale and Sperm whale believed to bred here Birds - 35 species land birds - 21 sea and shore birds (8 of the land birds are endemic) (4 introduced species)
WHY SO SERIOUS? The effects of alien invasive species on biodiversity have been described as ‘immense, insidious and usually irreversible’ (IUCN, 2000)