Exotic plants significantly impacted the landscape, resulting in degradation of the natural vegetation. 由于自然植被被严重破坏，岛屿上外来入侵种形成了较大的灾害。
Alternanthera philoxeroides, which can grow in both terrestrial and aquatic habitats, is a perennial herbaceous species of the genus Alternanthera in Amaranthes family. 随着对入侵生物的深入研究，外来入侵种与乡土种之间的比较研究近年来逐渐成为研究热点。
