Photoperiodism: The Biological Calendar

Hardcover | February 10, 2010

EditorRandy J. Nelson, David L. Denlinger, David E. Somers

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Life evolves in a cyclic environment, and to be successful, organisms must adapt not only to their spatial habitat, but also to their temporal habitat. How do plants and animals determine the time of year so they can anticipate seasonal changes in their habitats? In most cases, day length, orphotoperiod, acts as the principal external cue for determining seasonal activity. For organisms not living at the bottom of the ocean or deep in a cave, day follows night, and the length of the day changes predictably throughout the year. These changes in photoperiod provide the most accuratesignal for predicting upcoming seasonal conditions. Measuring day length allows plants and animals to anticipate and adapt to seasonal changes in their environments in order to optimally time key developmental events including seasonal growth and flowering of plants, annual bouts of reproduction,dormancy and migration in insects, and the collapse and regrowth of the reproductive system that drives breeding seasons in mammals and birds.Although research on photoperiodic time measurement originally integrated work on plants and animals, recent work has focused more narrowly and separately on plants, invertebrates, or vertebrates. As the fields have become more specialized there has been less interaction across the broader field ofphotoperiodism. As a result, researchers in each area often needlessly repeat both theoretical and experimental work. For example, understanding that there are genetically distinct morphs among species that, depending on latitude, respond to different critical photoperiods was discovered separatelyin plants, invertebrates, and vertebrates over the course of 20 years. However, over the past decade, intense work on daily and seasonal rhythms in fruit flies, mustard plants, and hamsters and mice, has led to remarkable progress in understanding the phenomenology, as well as the molecular andgenetic mechanisms underlying circadian rhythms and clocks. This book was developed to further this type of cooperation among scientists from all related disciplines. It brings together leading researchers working on photoperiodic timing of seasonal adaptations in plants, invertebrates, andvertebrates. Each of its three sections begins with an introduction by the section editor, and at the end of the book, the section editors present a synthesis of common themes in photoperiodism, as well as discuss similarities and differences in approaches to the study of photoperiodism, and futuredirections for research on photoperiodic time measurement.

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Life evolves in a cyclic environment, and to be successful, organisms must adapt not only to their spatial habitat, but also to their temporal habitat. How do plants and animals determine the time of year so they can anticipate seasonal changes in their habitats? In most cases, day length, orphotoperiod, acts as the principal external ...

Randy J. Nelson holds the Brumbaugh Chair in Brain Research and Teaching and is Professor and Chair of the Department of Neuroscience at Ohio State University. David L. Denlinger is a Distinguished University Professor in the Department of Entomology at the Ohio State University. David E. Somers is an Associate Professor in the Depart...

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Format:HardcoverDimensions:600 pages, 6.5 × 9.29 × 1.5 inPublished:February 10, 2010Publisher:Oxford University PressLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0195335902

ISBN - 13:9780195335903

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Table of Contents

Part I. Photoperiodism in Plants and FungiDavid E. Somers: Brief Overview1. Joanna Putterill, Christine Stockum, and Guy Warman: Photoperiodic Control of Flowering in the Long Day Plant iArabidopsis thaliana/i2. Takeshi Izawa: Photoperiodic Control of Flowering in the Short Day Plant iOryza Sativa/i (rice)3. Ryosuke Hayama: The Photoperiodic Flowering Response in iPharbitis nil /i4. Kumiko Ito-Miwa and Tokitaka Oyama: Photoperiodic Control of Flowering in iLemna/i5. Pekka Heino, Ove Nilsson, and Tapio Palva: Photoperiodic Control of Dormancy and Flowering in Trees6. Scott Michaels: Integration of Photoperiodic Timing and Vernalization in iArabidopsis/i7. Till Roenneberg, Tanja Radic, Manfred Godel, and Martha Merrow: Seasonality and Photoperiodism in FungiPart II. Photoperiodism in InvertebratesDavid L. Denlinger: Brief Overview8. Hideharu Numata and Hiroko Udaka: Photoperiodism in Mollusks9. Nancy H. Marcus and Lindsay P. Scheef: Photoperiodism in Copepods10. David S. Saunders: Photoperiodism in Insects: Migration and Diapause Responses11. Shin S. Goto, Sakiko Shiga and Hideharu Numata: Photoperiodism in Insects: Perception of Light and the Role of Clock Genes12. Karen D. Williams, Paul S. Schmidt, and Marla B. Sokolowski: Photoperiodism in Insects: Molecular Basis and Consequences of Diapause13. H. Frederik Nijhout: Photoperiodism: Effects on Insect Morphology14. Jim Hardie: Photoperiodism in Insects: Aphid PolyphenismPart III. Photoperiodism in VertebratesRandy J. Nelson: Brief Overview15. Bertil Borg: Photoperiodism in Fish16. Zachary M. Weil and David Crews: Photoperiodism in Reptiles and Amphibians17. Reproduction: Photoperiodism in Birds18. Takashi Yoshimura and Peter J. Sharp: Genetic and Molecular Mechanisms of Avian Photoperiodism19. Gregory E. Demas, Zachary M. Weil, and Randy J. Nelson: Photoperiodism in Mammals: Non-Reproductive Traits20. Lance J. Kriegsfeld and Eric Bittman: Photoperiodism in Mammals: Reproduction21. David Hazlerigg: Genetic and Molecular Mechanisms of Mammalian Photoperiodism22. David L. Denlinger, David E. Somers, and Randy J. Nelson: Overview of Photoperiodism