Induced Responses to Herbivory
by Richard Karban and Ian T. Baldwin
University of Chicago Press, 1997
Cloth: 978-0-226-42495-8 | Paper: 978-0-226-42496-5 | Electronic: 978-0-226-42497-2
DOI: 10.7208/chicago/9780226424972.001.0001


Plants face a daunting array of creatures that eat them, bore into them, and otherwise use virtually every plant part for food, shelter, or both. But although plants cannot flee from their attackers, they are far from defenseless. In addition to adaptations like thorns, which may be produced in response to attack, plants actively alter their chemistry and physiology in response to damage. For instance, young potato plant leaves being eaten by potato beetles respond by producing chemicals that inhibit beetle digestive enzymes.

Over the past fifteen years, research on these induced responses to herbivory has flourished, and here Richard Karban and Ian T. Baldwin present the first comprehensive evaluation and synthesis of this rapidly developing field. They provide state-of-the-discipline reviews and highlight areas where new research will be most productive. Their comprehensive overview will be welcomed by a wide variety of theoretical and applied researchers in ecology, evolutionary biology, plant biology, entomology, and agriculture.



1.1 Plants Are Defended against Many Threats

1.2 Definitions

1.3 A Brief History of a Young Field

2.1 Introduction

2.2 Cues and the Specificity of Responses

2.3 Signals in Systemic Induction

2.4 Communication between Individuals

3.1 Comparison of Mechanistic and Bioassay Approaches toward an Understanding of the Function of Induced Responses

3.2 Overview of Mechanisms

3.3 Mechanisms Responsible for Induced Increases in Chemicals

3.4 Future Directions: Bringing the Plant Back into Plant-Herbivore Interactions

4.1 Effects on Performance of Bioassay Herbivores as Evidence of Induced Resistance and Susceptibility

4.2 Where Is Induced Resistance Found?

4.3 Does Induced Resistance Affect Herbivore Populations?

4.4 Does Induced Resistance Drive Cycles of Herbivore Outbreaks?

4.5 Future Directions: Extending Our Knowledge to the Population and Community Levels

5.1 Evolutionary Processes and Induced Responses

5.2 Induced Defenses as Incidental Effects of Defoliation or Evolved responses to Herbivory: A Bogus Dichotomy?

5.3 Costly Defenses and Evolutionary Hypotheses to Explain Induced Defenses

5.4 Other Evolutionary Explanations for Induced Defenses

5.5 Future Directions: Generating and Testing Evolutionary Hypotheses about Induced Defenses

6.1 Induced Resistance for Disease Control in Medicine and Plant Pathology

6.2 Strategies Using Induced Resistance for Control of Herbivore Pests

6.4 Conclusion