Invasive Alien Weed Species Impacts on Biodiversity and Socio-Economic Aspect in Ethiopia: A Review

In Ethiopia, there are about 22 invasive alien species, and the country has very heterogeneous in species diversity and has a rich endemic element. These invasive alien species (IAS) pose the biggest threat to biodiversity after habitat destruction and also pose a serious threat to agriculture (crop and livestock), livelihoods and human health in the country. Because of their unique characteristics they do not need special environmental requirement for seed germination, have rapid seedling growth and produce seeds for longer period of time as long as environmental condition permit. This paper is primarily concerned with biodiversity and socio-economic impact of invasive a line species in Ethiopia. Review of IAS distribution, impact on biodiversity and socio-economic was carried out in order to evaluate their corollary to social instability and economic hardship, placing constraints on sustainable development, economic growth, poverty alleviation and food security.