Aestivation: Molecular and Physiological Aspects (Google eBook)
Numerous animal species live in environments characterized by a seasonal reduction in the availability of water, which often but not always occurs when temperatures are highest. For many such animals, survival during the toughest season requires spending long periods of time in a rather inactive state known as aestivation. But aestivation is much more than remaining inactive. Successful aestivation requires the selection of a proper microhabitat, variable degrees of metabolic arrest and responsiveness to external stimuli, the ability to sense the proper time of year for emergence, the preservation of inactive tissue, and much more. So, aestivation involves a complex collection of behaviors, ecological associations and physiological adjustments that vary across species in their type, magnitude and course. This book seeks to explore the phenomenon of aestivation from different perspectives and levels of organization, ranging from microhabitat selection to genetic control of physiological adjustments. It brings together authors from across the world working on different systematic groups, approaches, and questions, but who are all ultimately working to better understand the complex issue of aestivation.
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activity aestivation aethiopicus African lungfish amino acid ammonia production amphibians anhydrobiosis animals annectens anoxia antioxidant anurans arousal behavior burrowing frog cells cellular changes Chew SF cocoon Comp Biochem Physiol Comp Physiol cryptobiosis Cyclorana Cyclorana alboguttata daily torpor decrease dehydration desiccation diapause dormancy ecological ectotherms energy environmental environments enzymes excretion Exp Biol exposure fasting fish fossil Franklin Geiser Geiser F gemmules gene Guppy hepatopancreas Hermes-Lima heterotherms hibernation Hochachka hypometabolism hypoxia increased insects Ip YK lactea land snails lipids liver Loong mammals mass McClanahan mechanisms metabolic depression metabolic rate metabolic rate suppression molecular months of aestivation Neobatrachus nitrogen metabolism occur organisms osmotic oxidative stress oxygen periods phase of aestivation phosphorylation Physiol Zool physiological Pinder protein kinase protein synthesis Protopterus Ramnanan reduced regulation response Scaphiopus couchii season Secor skeletal muscle spadefoot toads species Storey KB studies survive temperature tissues torpor turtles urea urea synthesis vertebrates water loss Withers PC