Species management

These 12th proceedings provide an overview of the ongoing research and management activities on polar bears on the circumpolar Arctic. Together with the previous proceedings, they provide an historic record of the international effort in protecting polar bears from over-harvest, and document more recent concerns of threats arising as a consequence of increased human activities in both the Arctic and in regions far beyond the realm of polar bears.

The first comprehensive treatment of North American rodents of conservation concern. This action plan summarises the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts.

Sharks and their relatives, the rays and chimaeras, are the diverse group of cartilaginous fishes that have evolved over 400 million years. Historically considered of low economic value to large-scale fisheries, today many of these fishes have become the target of directed commercial and recreational fisheries around the world, and they are increasingly taken in the by-catch of fisheries targeting other species.