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Stress Ecology - Environmental Stress as Ecological Driving Force and Key Player in Evolution (Paperback, 2012 ed.)
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Stress Ecology - Environmental Stress as Ecological Driving Force and Key Player in Evolution (Paperback, 2012 ed.)
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Not all stress is stressful; instead, it appears that stress in the
environment, below the mutation threshold, is essential for many
subtle manifestations of population structures and biodiversity,
and has played a substantial role in the evolution of life.
Intrigued by the behavior of laboratory animals that contradicted
our current understanding of stress, the author and his group
studied the beneficial effects of stress on animals and plants. The
seemingly "crazy" animals demonstrated that several stress
paradigms are outdated and have to be reconsidered. The book
describes the general stress responses in microorganisms, plants,
and animals to abiotic and biotic, to natural and anthropogenic
stressors. These stress responses include the activation of oxygen,
the biotransformation system, the stress proteins, and the
metal-binding proteins. The potential of stress response lies in
the transcription of genes, whereas the actual response is
manifested by proteins and metabolites. Yet, not all stress
responses are in the genes: micro-RNAs and epigenetics play central
roles. Multiple stressors, such as environmental realism, do not
always act additively; they may even diminish one another.
Furthermore, one stressor often prepares the subject for the next
one to come and may produce extended lifespans and increased
offspring numbers, thus causing shifts in population structures.
This book provides the first comprehensive analysis of the
ecological and evolutionary effects of stress.
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