Product Description: Interest in the way in which symbiotic bacteria can manipulate reproduction in their invertebrate hosts has risen rapidly in recent years. Discoveries have ranged from bacteria that can determine the likelyhood of their fruitfly hosts finding a partner to mate with to bacteria infecting woodlice that can cause sex changes in woodlice offspring...read more (view table of contents, read Amazon.com's description)

Most natural populations experience extremely stressful conditions. This book discusses how such conditions can cause periods of intense selection that increase both phenotypic and genetic variation, and allow organisms with novel characteristics to be first generated and then established in the population. Using evidence from the fossil record, the authors argue that stressful conditions can have a major impact on the environments. They also suggest that as a consequence, periods of stress must be taken into consideration when long term conservation strategies are planned, particularly as stressful conditions emerge as a result of human activities. This broad overview will be of great interest to students and researchers in the field of evolutionary biology, genetics, ecology, paleontology and conservation biology. (view table of contents)

Product Description: Although unpredictable and of short duration, periods of extreme environmental stress occur throughout the entire course of evolution. This book concentrates on the evolutionary changes that take place during these critical periods, when populations are driven to the extreme limits of resistance...read more