Man s recent colonization of New Zealand has dramatically altered the resident biota and resulted in the introduction of numerous alien organisms to these once remote islands. In reverse, there is increasing evidence of a lesser known export of species to other regions of the world. This volume presents an in-depth review of the level and rate of such invasions, and investigates what controls the success of invaders and the consequences for ecosystems both on land and offshore. It provides invasion biologists everywhere with tests of current theories about those factors leading to the success of invaders as well as evaluating principles for understanding the nature of their impacts that form a solid basis for the effective management of biological invasions worldwide."

This is a truly interactive multimedia CD-ROM on the 337 species of sponges recorded in the coastal areas of the north-east Atlantic down to southern Portugal, found to a depth of 200 m. Each species is described and illustrated - the CD-ROM contains 1510 photographs and drawings - and can be accessed by two different identification keys. An illustrated glossary, a 'literature module' and the 'distribution module' are fully linked with the individual species, making searches easy. The 'higher taxa module' leads to information on the families, orders and classes of the sponges. As a bonus the CD-ROM features a 'who is who module' which contains portraits and biographic data on sponge systematicians.