Search the SPREP Catalogue

The global increase in biological invasions is placing growing pressure on the management of ecological and economic systems. However, the effectiveness of current management expenditure is difficult to assess due to a lack of standardised measurement across spatial, taxonomic and temporal scales. Furthermore, there is no quantification of the spending difference between pre-invasion (e.g. prevention) and post-invasion (e.g. control) stages, although preventative measures are considered to be the most cost-effective. Here, we use a comprehensive database of invasive alien species economic costs (InvaCost) to synthesise and model the global management costs of biological invasions, in order to provide a better understanding of the stage at which these expenditures occur.

Asia-Pacific is a region of contrasts. It has some of the fastest-growing economies of the world while, at the same time, the Least Developed Countries (LDCs) continue to face persistent challenges. As a whole,the region has made significant inroads into poverty reduction with progress toward the internationally agreed Millennium Development Goals (MDGs). China and India, together accounting for nearly 40 percent of the world's population and ranking among the fastest-growing countries, account for most of this progress, along with the "tiger" economies of East and South-East Asia. Due to the tyranny of averages, the relatively poor performance of the Asia-Pacific LDCs gets overshadowed. Only a more disaggregated appraisal reveals the far more limited gains in the LDCs1. Thus, the dynamism of Asia represents both a challenge and an opportunity. It could increase inequalities that contribute to growing tensions. It also could generate resources and opportunities. Attainment of the MDGs in Asia and the Pacific as a whole will be marked by the far more limited progress made by the 14 LDCs of the region.