It is a pleasure and a distinct honour for me to greet the participants, guests and ob servers of this Fourth International Symposium on Antarctic Biology which

Discusses aspects of nutrient cycling and food webs, covering such areas as nutrients and autotrophs, autotroph-herbivore interactions, disturbances to nutrient

Antarctic Ecosystems comprises 55 papers presented at the Fifth Symposium on Antarctic Biology held under the auspices of the Scientific Committee on Antarctic

A structured account of the full range of environments in Antarctica and of the microbial communities that live within them. The author examines the major featu