Life in the Cold: Eleventh International Hibernation SymposiumThis 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. |
Contents
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 |
543 | |
Other editions - View all
Life in the Cold: Eleventh International Hibernation Symposium Gerhard Heldmaier,Martin F. Bach,Susanne Klaus No preview available - 2010 |
Common terms and phrases
activity adaptation alpine marmots ambient temperature animals arctic ground squirrels arousal from hibernation Biochem Biol body mass body temperature brain brown adipose tissue cells changes circadian cold Comp Physiol daily torpor decrease diet dormice echidnas effect endotherms energy enzyme European ground squirrels euthermic fatty acids females frogs function gangliosides Geiser Geiser F golden-mantled ground squirrel hamsters hetastarch heterothermic hibernation season hypothermia increase inhibition juveniles laboratory leptin levels lipid liver Lyman macroura Malan mammalian hibernation mammals marmots mechanisms membrane metabolic depression metabolic rate mice mitochondrial proton mRNA observed oxygen consumption patterns physiological plasma Pörtner protein proton proton cycling proton leak receptor reduced regulation respiration respiratory response rewarming rhythms role significant significantly skeletal muscle species Spermophilus Storey sugar gliders suprachiasmatic nucleus surfactant thermal thermogenesis thermoregulation torpid torpor bout UCP1 values Wang LCH winter