Freshwater biotas of New Guinea and Nearby island: analysis of endemism, richness, and threats

Abstract

Effective conservation of regional biotas requires accurate information on the distribution, endemicity, local richness, and taxonomic composition of species assemblages across multiple geographic scales. This is especially true in the Melanesian region, which contains ten percent of the world's biota on its numerous islands scattered across thousands of kilometers between Fiji and the Moluccas. Although certain important biotic components within this region, such as birds, have been reasonably surveyed, many others, particularly freshwater organisms, remain poorly understood.