Polar Ecology is one ecologist's attempt to sum up plant, animal and
environmental relationships in the polar regions. Ecology grabs
ecologists in different ways. I was grabbed in Antarctica by Adelie
penguins, incubating contentedly at - 20°C with unmelting snow on their
backs, and by minute black insects basking at lOoC in tufts of moss,
while winds at - 15°C swept past unheeded. Some time later I saw snow
buntings sheltering under Canadian eaves at - 30°C, and wondered (as I
still wonder) how so tiny an organism maintains body temperature against
so sharp a gradient. The subtitle of this book, if it had one, would be
' ... an environmental approach'. My interests centre squarelyon plants
and animals, but it is their responses to the environment-the physical
conditions in which they find themselves-and effects of environmental
constraints on their communities, that intrigue me most. In a small
book, this has left little room for other important aspects of
ecology-for example, the production and process ecology that currently
preoccupy field researchers, and the biogeography and evolution of polar
ecosystems that still provoke argument and speculation. My approach may
provide background for other aspects of ecology, both polar and
world-wide. I hope that the in-text citations and end-of-chapter
bibliographies will help students to find their way into the broader
fields beyond.