Insect Photoperiodism

Insect Photoperiodism reviews the many aspects of photoperiodism, particularly in insects, emphasizing the concepts that serve to place the subject in a meaningful relationship to the whole of modern biology. Photoperiodism is the study of the adaptive mechanisms by which living systems exploit this source of temporal information.
Organized into 12 chapters, this book begins by discussing the relationships between an endogenous behavioral rhythm and the exogenous photoperiod. Aside from behavioral activities, it also shows that some observable developmental events tend to occur at species-typical times of the day and to be photoperiodically regulated. Notably, photoperiod may exert either or both of two regulatory effects on insect development: growth rate effects or polymorphism. Furthermore, the characteristics of some of the principal physiological rhythms that have been studied; role of photoperiod in the control of diapauses; and the circadian functions and theoretical nature of biological clock are explored in this book.

Contenu

Preface
Chapter 1 Introduction to Photoperiodism
Photoperiod as a Geophysical Pattern
Introduction to Insect Photoperiodism
Chapter 2 Behavioral Photoperiodism
Photoperiodic Entrainment of Locomotor Rhythms 1
Photoperiodic Entrainment of Feeding Behavior
Photoperiodic Entrainment of Mating Behavior
Photoperiodic Entrainment of Oviposition
Survey of Photoperiodic Entrainment of Behavioral Rhythms
Chapter 3 Photoperiodism and Developmental Events
Fortuitous and Gated Synchrony
Adult Emergence Rhythms
Egg Eclosion Rhythms
Rhythms of Pupation
Rhythmic Larval Ecdysis
Survey of Developmental Event Rhythms
Chapter 4 Physiological Rhythms
Metabolic Periodism
Developmental Processes
Central Nervous and Sensory Systems
Neurosecretory and Endocrine Systems
Chapter 5 Growth and Polymorphism
General Physiology of Insect Growth
Effects of Photoperiod on Growth Rates
Effects of Photoperiod on Pigmentation and Body Form
Photoperiod and Aphid Polymorphism
Chapter 6 Photoperiodism and Diapause
Photoperiodic Induction of Diapause
Diapause Development
Summation of Photoperiodic Effects
Diapause and Seasonal Changes in Daylengths
Chapter 7 Survey of Photoperiodically Controlled Diapause
Embryonic Diapause
Larval and Nymphal Diapause
Pupal Diapause
Imaginal Diapause
Chapter 8 Circadian Rhythms and Biological Time Measurement
Characteristics of Circadian Rhythms
Temperature Compensation of Circadian Rhythms
Continuous Operation of the Biological Clock
Entrainment and Phase Regulation
Chapter 9 Biological Clocks in Developmental Periodism
General Biological Clock Theories
Biological Characteristics of Time Measurement
Chapter 10 The Dual System Theory of the Biological Clock
Characteristics of the Dual System Theory
Applications of the Dual System Theory
Circadian Pacemaker, Hourglass, and Dual System Theories
Chapter 11 Physiology of the Biological Clock Receptor Systems
Biological Clock Systems
Chapter 12 Photoperiodism and Adaptation Circadian Adaptations
Seasonal Adaptations
Genetics of Photoperiodism
Speciation
References
Index