來源： The Pacific Invasives Initiative 2006
Mimosa pigra is an invasive alien species found in Papua New Guinea in tropical wet savanna areas. In the Pacific Mimosa pigra is so far only known from three localities in Papua New Guinea, including areas of the Sepik and Ramu river basins. One of them covers approximately three hectares and is located close to Madang in Northern Papua New Guinea. There is a risk M. pigra will spread to the Bismarck Archipelago and possibly the Solomon Islands.
A PII (Pacific Invasives Initiative) project is in progress to determine the feasibility of managing, through eradication or control, M. pigra at a site in Madang. It is anticipated that the project will increase public awareness of the negative affects of M. pigra.
The Sepik river (probably the largest unpolluted river in Asia-Pacific), hosts one of the world’s highest levels of biodiversity including many endangered endemic species such as the Sepik Blue Orchid (Dendrobium lasianthera).
威脅瀕危物種: Mimosa pigra could out-compete virtually all other plant species in wetland areas and could make infested areas inaccessible to animals and people. In the Oro Province M. pigra could displace the world’s largest butterfly Queen Alexandra's Birdwing (see Ornithoptera alexandrae in IUCN Red List of Threatened species), already threatened by extinction due to habitat destruction. M. pigra could also threaten the biodiversity of the Sepik River, which is home to many endemic species including the Sepik blue orchid (Dendrobium lasianthera).
經濟 /民生: Mimosa pigra especially threatens the wetlands of the Sepik and Ramu river basins. The successful invasion of M. pigra into these basins would endanger thousands of livelihoods that depend on fishing.
最後修改 ： 19/07/2006 12:45:50 p.m.