00600nam a2200181 a 450000500170000002000180001708200160003510000210005110000210007224500470009326000480014030000260018863000240021463000250023863000250026363000260028863001040031420251203110106.0  a9780521441070  a576.84bHOF  aHoffmann, Ary A.  aParsons, Peter A  aExtreme environmental change and evolution  aCambridgebCambridge University Pressc1997  axii,259p.c23 cm.bHB  aEvolution (Biology)  aAdaptation (Biology)  aExtreme environments  aEvolutionary genetics  aenvironment adaptation evolutionary genetics variation natural selection extinction diversification