Life in the Cold: Eleventh International Hibernation Symposium

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This book contains the proceedings of the 11 'h international symposium dedicated to the understanding of animal "Life in the Cold", held at Jungholz (Austria), August 13-18, 2000. In 55 chapters contributed by researchers from 16 countries the current state of knowledge is reviewed, and the most recent developments and discussions in this field are highlighted. The first symposium on hibernation and life in the cold was held in 1959, and from then on they continued to occur every 3-5 years. The regular occurrence of these meetings became almost a tradition. A tradition which is entirely based on the enthusiasm of participants, and was nourished by scientific progress in this area during the past decades. The first symposium in 1959 was organised by Charles P. Lyman and Albert R. Dawe and was almost entirely dedicated to hibernation and torpor. This has been a backbone topic of the following symposia, although other aspects of animal energetics, thermal physiology and biochemistry were included in later meetings.
 

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Inhalt

Preface
1
Evolution and Ecophysiology of Torpor
3
Hints about the Evolution of Endothermy?
5
Patterns of Hibernation of Echidnas in Tasmania
21
Coping with Unpredictable Environments
29
Preliminary Results from a Field Study
41
Evidence of Avian Prototorpor?
49
Spontaneous Arousal in Reptiles? Body Temperature Ecology of Rosenbergs Goanna Varanus rosenbergi
57
Temperature Modulation of Glucocorticoidreceptor Affinity in a Hibernator the European Ground Squirrel and a NonHibernator the Rat
277
Follicular Development and Hibernation in European Ground Squirrels
285
Effects of Hetastarch on Rewarming after Prolonged Deep Hypothermia in Rats
293
Biochemical and Molecular Mechanisms of Torpor
301
Gene Expression and Protein Adaptations in Mammalian Hibernation
303
Quantitative and Qualitative Changes in Gene Expression during Hibernation in Goldenmantled Ground Squirrels
315
Mechanistic Considerations
325
Cellular Response to Metabolic Stress in Hibernating Mammals
339

Burrow and Body Temperatures Metabolism and Limits to Torpor Bout Length in Arctic Ground Squirrels
65
Energetics of Hibernation in Woodchucks Marmota monax
73
Mechanisms of Social Thermoregulation in Hibernating Alpine Marmots Marmota marmota
81
Do Patterns of Torpor Differ between Freeranging and Captive Mammals and Birds?
95
Weather Patterns and Daily Torpor in Freeranging Animals
103
Role of Soil Temperature in Timing of Emergence from Hibernation in the Jumping Mouse Zapus hudsonius
111
Temperature Selection and Energy Expenditure in the Marsupial Hibernator Cercartetus nanus
119
Effects of Food Quality and Quantity
127
Parasite Adaptations to Hibernation in Alpine Marmots
139
Physiological Mechanisms of Torpor
147
Perspectives on Metabolic Suppression during Mammalian Hibernation and Daily Torpor
149
Control of Cardiac and Ventilation Frequencies During Hibernation in Ground Squirrels
159
Intermittent Ventilation in Hibernating DormiceIs Ventilation always Necessary to Meet Metabolic Demands?
169
Retention of Carbon Dioxide during Entrance into Torpor in Dormice
179
Thermal Cycling of the Pulmonary Surfactant System in Small Heterothermic Mammals
187
Paradigm Shift in the Physiology of Survival of Apneic Deep Hypothermia in Neonatal Rodents
199
The Effects of alphaTocopherol on Mammalian Torpor
207
Their Impact on Freeliving Alpine Marmots Marmota marmota
215
Circadian Rhythms of Body Temperature in Laboratory and Field Marmots Marmota flaviventris
223
Circannual Rhythms in European Ground Squirrels During Nine Years of Entrainment
233
Is Hibernation Facilitated by an Inhibition of Arousal?
241
The Djungarian Hamster Is Sleep Deprived during Daily Torpor
251
Relationship with the Hibernation Process
261
Ultrastructure of Organs and Tissues of Dormice during Hibernation
269
Gluconeogenesis in Brain and Liver During Daily Torpor in Deer Mice Peromyscus maniculatus
347
Cardiac Cyclic Nucleotide Phosphodiesterase PDE Activity in the European Hamster during Hibernation
355
Temperature Dependence of Coupled and Uncoupled Oxidations in Brain Synaptosomes from Hibernators and NonHibernators
361
Endogenous Changes in HibernationSpecific Protein in Chipmunk Cerebrospinal Fluid
369
OpioidLike Hibernation Factors Provide Protection to the Ischemic Myocardium
377
Energy Balance and Cold Adaptation
385
Is there a Life in the Cold without UCP1? Uncoupling Proteins and Thermoregulatory Thermogenesis
387
Implications for Torpor and Hibernation Responses
401
Mitochondrial Proton Conductance Standard Metabolic Rate and Metabolic Depression
413
Mitochondria in the Cold
431
A Contribution of Acidbase Regulation to Metabolic Depression in Marine Ectotherms
443
Leptin Signals and Secretions from White Adipose Tissue
459
Flexibility of Basal Metabolic Rate in Arctic Breeding Kittiwakes Rissa tridactyla
471
What Tissues are the Major Contributors to Resting Metabolism?
479
Use of the EMSCAN to Determine Body Composition in Previously Frozen Specimens
487
The Influence of Temperature and Season on MitogenInduced Proliferation of Ground Squirrel Lymphocytes
493
Oestradiol and Progesterone Control Cytochrome c Oxidase Activity in Thermogenic Tissues
505
Low Temperature Effects and Social Influences on Physiological Condition of Subadult Wild Rabbits
511
Physicochemical Model for Brain Ganglioside Function in Thermal Adaptation of Vertebrates
519
Molecular Studies of Signal Transduction and Gene Expression
527
Author Index
541
Subject Index
543
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