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Oxidative Stress and Hormesis in Evolutionary Ecology and Physiology

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This book discusses oxidative stress and hormesis from the perspective of an evolutionary ecologist or physiologist. In the first ... Weiterlesen
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This book discusses oxidative stress and hormesis from the perspective of an evolutionary ecologist or physiologist. In the first of ten chapters, general historical information, definitions, and background of research on oxidative stress physiology, hormesis, and life history are provided. Chapters 2-10 highlight the different solutions that organisms have evolved to cope with the oxidative threats posed by their environments and lifestyles. The author illustrates how oxidative stress and hormesis have shaped diversity in organism life-histories, behavioral profiles, morphological phenotypes, and aging mechanisms. The book offers fascinating insights into how organisms work and how they evolve to sustain their physiological functions under a vast array of environmental conditions.


Chapter 1: Historical and Contemporary Issues of Oxidative Stress, Hormesis and Life History Evolution

1.1 The Great Oxidation Event: From a Reducing to an Oxidising World

1.2 Reactive Species, Antioxidants and Oxidative Stress

1.2.1 On the Nature of Free Radicals and of Other Reactive Species

1.2.2 Antioxidant Mechanisms

1.2.3 Oxidative Stress

1.2.4 Biochemical Integration and Modularity of Redox Systems

1.3 Hormesis

1.3.1 Historical Scenario: on the Birth, Death and Resurgence of Hormesis

1.3.2 Types of Hormesis

1.3.3 Quantitative Features of Hormesis and Problems with its Detection

1.3.4 Hormesis and Evolutionary Fitness

1.4 Life History Evolution


Chapter 2: Early Life Hormesis and Oxidative Experiences Fine-Tune the Adult Phenotype

2.1 Early Environment and Phenotypic Development

2.2 Pre-Natal Maternal Effects: How Mothers Use Hormones to Shape their Offspring

2.2.1 Organisational Effects of Androgens: Examples from Birds

2.2.2 Stress Hormones and the Developmental Programming Hypothesis

2.3 Epigenetic and Transgenerational Hormetic Effects

2.4 Post-Natal Hormetic Priming of Organism to Withstand Stress Later in Life

2.4.1 Plants

2.4.2 Invertebrates

2.4.3 Birds

2.4.4 Mammals

2.5 The Compensatory Growth Paradigm

2.6 Conclusions


Chapter 3: Variation in Oxidative Stress Threats and Hormesis Across Environments

3.1 The Struggle of Living in Oxidising Environments

3.2 Coping with Thermal Challenges

3.2.1 Thermal Relations of Organisms with their Environments

3.2.2 The Good and the Bad of Cold and Heat Stress

3.2.3 Thermal Stress and Body Colourations

3.3 Solar Radiation: the Threat Comes from Above

3.4 Partial Pressure of Oxygen

3.4.1 Coping with Drastic Changes in Oxygen Concentration

3.4.2 The Curious Case of Symbiotic Species

3.5 Partial Pressure of Carbon Dioxide

3.6 Coping with Multiple Environmental Stressors

3.7 Environmentally Induced Variation in Redox State Regulation Within and Among Species

3.7.1 Invertebrates

3.7.2 Fish

3.7.3 Birds

3.8 Conclusions


Chapter 4: Nutritional Ecology, Foraging Strategies and Food Selection

4.1 The Pervasive Nature of Food in Life

4.2 The Oxidative Costs of Foraging

4.3 Food Selection: Looking for Antioxidant Rewards

4.4 Effects of Diet on Oxidant and Antioxidant Status

4.4.1 Food Quality

4.4.2 Food Restriction

4.5 Antioxidants and Nutrients as Maternal Programming Tools of Offspring Oxidative Balance

4.5.1 Dietary Antioxidants

4.5.2 Nutrients

4.6 On Nutrients, Toxins, Nutritional Hormesis, Essentiality and the Bertrand's Rule

4.7 Conclusions


Chapter 5: Coping with Physical Activity and Inactivity

5.1 Redox Biology of Physical Activity

5.2 Physical Effort, Oxidative Stress and Hormesis

5.3 Costs of Migration and Strategies to Mitigate Them

5.3.1 Long-Distance Migrations

5.3.2 Vertical Migration

5.4 Quarrelsome Families: Competition Among Siblings

5.5 Oxidative Stress Risks Through the Transitions From Dormancy to Arousal and Back

5.6 Conclusions


Chapter 6: The Costs of Makeup in Sexual Selection and Social Signalling

6.1 Visual Sexual Signalling in Males

6.1.1 Carotenoid-Dependent Secondary Sexual Traits

6.1.2 Melanin-Dependent Secondary Sexual Traits

6.1.3 Testosterone and Ornaments

6.1.4 Achromatic Morphological Sexual Signals

6.2 Visual Sexual Signalling in Females

6.2.1 Body Colourations

6.2.2 Egg Pigmentation and the Extended Phenotype

6.3 Beyond Sex: Signalling in Social Contexts

6.3.1 Signalling in Females

6.3.2 Signalling in Young

6.4 Warning Signals

6.5 Conclusions


Chapter 7: The Role of Oxidative Stress and Hormesis in Shaping Reproductive Strategies from Mating Systems to Parental Care

7.1 Reproduction is a Time of Tradeoffs

7.2 Mating Systems, Reproductive Tactics and Social Stress

7.2.1 Courtship Displays

7.2.2 The Waiting Male and The Fighting Female

7.2.3 Cooperative Breeding

7.2.4 Hierarchical Societies

7.2.5 Two Sexes, but Many Morphs

7.2.6 Polyandry and Sperm Competition

7.2.7 Socially Monogamous, but Genetically Polygamous

7.3 Male Fertility

7.4 Egg Production

7.5 Colostrum and Milk Production

7.6 Offspring Rearing Effort

7.7 Hormesis and Reproduction

7.8 Conclusions


Chapter 8: Combating Parasites: Immune Response and Inflammation

8.1 Ecoimmunolog...


Titel: Oxidative Stress and Hormesis in Evolutionary Ecology and Physiology
Untertitel: A Marriage Between Mechanistic and Evolutionary Approaches
EAN: 9783642546631
ISBN: 978-3-642-54663-1
Digitaler Kopierschutz: Wasserzeichen
Format: E-Book (pdf)
Herausgeber: Springer
Genre: Biologie
Anzahl Seiten: 348
Veröffentlichung: 27.03.2014
Jahr: 2014
Untertitel: Englisch
Dateigrösse: 7.0 MB