Life In The Cold: Ecological, Physiological, And Molecular Mechanisms

 Contributors present the newest information on ecological, physiological, neurological, cellular and biochemical mechanisms by which vertebrates deal with seasonal cold.

Table of Contents:
Preface -- Keynote Address -- Multiple Pathways to Spring -- Invited Contributions -- Comparison of Thermal Responses between Rest and Exercise During Cold Water Immersion -- Seasonality of Daily Torpor in a Migratory Hummingbird -- Getting by on High: Ecological Energetics of Arctic and Alpine Grouse -- Hibernation in Birds: Comparisons with Mammals -- The Physiology of Hibernation in an Egg-Laying Mammal, the Echidna -- Energetics of Social Hibernation -- Factors Affecting Hibernation Commencement and Spring Emergence in Siberian Chipmunks (Eutamias sibiricus) -- Thermoregulatory "Strategies" of Two Apodemus Species Inhabiting a Cold Environment On Mount Hermon -- Individual Energetic Strategies in Winter-Adapted Djungarian Hamsters: The Relation between Daily Torpor, Locomotion, and Food Consumption -- Sexual Differences in Hibernaculum Contents of Richardson's Ground Squirrels: Males Store Food -- Patterns of Body Temperature Change in Hibernating Arctic Ground Squirrels -- Effects of Captivity on Peak Rates of Oxygen Consumption of Winter-Caught Deer Mice and Black-Capped Chickadees -- Dietary Lipids and Thermal Physiology -- Regulation of Gut Structure and Function in Hibernators -- Metabolic Fuel Utilization During Hibernation -- Energy Requirements of Hibernating Alpine Marmots -- Dift Affects Hibernation in Turkish Hamsters -- Circadian Rhythmicity and Photoperiodism in the Djungarian Hamster -- Photoperiodic Control of Reproduction and Hibernation in the European Hamster (Cricetus Cricetus): Morphological and Functional Analysis -- Regulation of Cardiac Cytosolic Free Ca2+ At Low Temperature in the Richardson's Ground Squirrel -- Plasma Membrane Proton Transport and Hamster Brown Adipocyte Thermogenesis -- Seasonal Lipolysis in Hibernators -- Sleep, Hypothermia, and Hibernation: Metabolic Rate and the Control of Breathing Pattern in Golden-Mantled Ground Squirrels -- Temperature Regulation, Enzyme Kinetics, and Metabolic Depression in Mammalian Hibernation -- What is a Bout of Hibernation? -- Calcium and Temperature Dependent Neural Mechanisms in ca Pyramidal Cells in the Rat and Hamster Hippocampal Slice -- The Suprachiasmatic Nucleus Mediates Rhythms of Hibernation and Daily Torpor in Rodents -- On Possible Mechanisms of the Septohippocampal System Participation in the Neural Control of Hibernation -- Is Endogenous Opioid Involved in Hibernation? -- Immediate Early Gene Expression in Brain Across the Hibernation Cycle -- Possible Involvement of Endogenous Adenosine in Hibernation -- Adaptive Changes of Hypothalamic Thermosensitive Neurons after Exposure to Cold Environmental Temperature -- Regulation of Brown Adipose Tissue Function in Cold-Adapted Animals: Lack of ß3-Adrenergic Receptors in Brown Adipose Tissue of Cold-Adapted Guinea Pigs -- Why are Brown-Fat Cells from Cold-Acclimated Animals Not Better? -- Species Distribution of Brown Adipose Tissue: Characterization of Adipose Tissues from Uncoupling Protein and Its mRNA -- Genes in the Cold: A Survey of the Regulation of Gene Expression in Brown Adipose Tissue -- Brown Adipose Tissue and the Uncoupling Protein UCP: Cellular and Molecular Studies -- Muscle Function in Hibernators -- Increased Lipoprotein Lipase Activity in Brown Adipose Tissue During Arousal of the Hibernating Garden Dormouse (Eliomys quercinus L.) -- Lipoprotein Lipase is Differentially Regulated in Brown and White Adipose Tissue During Seasonal Acclimatization of the Djungarian Hamster -- Membrane Adaptations in Ectotherms and Endotherms -- Handling of Sodium ion by the Plasma Membrane: Differences That Account for Failure of Cold-Sensitive Cells -- Differential Gene Expression in the Liver During Hibernation in Ground Squirrels -- Perspectives on Molecular Function in Hibernators: Insights from Quiescent States of Invertebrates -- Identification and Characterization of Novel Types of Plasma Protein Specific for Hibernation in Rodents -- Myocardial ß-Adrenergic Receptor Complex in Hibernation -- Molecular Control of Prehibernation Brown Fat Growth in Arctic Ground Squirrels -- Hypothalamic Neuropeptides, Metabolic Hormones, and Seasonal Fattening in Golden-Mantled Ground Squirrels -- Integrated Physiological Responses Promoting Anuran Freeze Tolerance -- Muscle Disuse in Hibernation: Gene Expression and Morphology -- Molecular Mechanisms for Selective Retention of Essential Fatty Acids During Hibernation -- Point Counterpoint -- Does Nonshivering Thermogenesis Exist in Birds? -- Acidosis, Q10, and Metabolic Depression: Causation or Epiphenomona in Mammalian Hibernation? -- Why Do Hibernators Periodically Arouse?

About the Author :
Cynthia Carey, Gregory L. Florant, Bruce A. Wunder, and Barbara Horwitz