Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Historical introduction: on widely foraging for Kalahari lizards
- I Organismal patterns of variation with foraging mode
- 1 Movement patterns in lizards: measurement, modality, and behavioral correlates
- 2 Morphology, performance, and foraging mode
- 3 Physiological correlates of lizard foraging mode
- 4 Lizard energetics and the sit-and-wait vs. wide-foraging paradigm
- 5 Feeding ecology in the natural world
- 6 Why is intraspecific niche partitioning more common in snakes than in lizards?
- 7 Herbivory and foraging mode in lizards
- 8 Lizard chemical senses, chemosensory behavior, and foraging mode
- 9 Patterns of head shape variation in lizards: morphological correlates of foraging mode
- 10 Prey capture and prey processing behavior and the evolution of lingual and sensory characteristics: divergences and convergences in lizard feeding biology
- 11 The meaning and consequences of foraging mode in snakes
- II Environmental influences on foraging mode
- Index
- References
5 - Feeding ecology in the natural world
Published online by Cambridge University Press: 04 August 2010
- Frontmatter
- Contents
- List of contributors
- Preface
- Historical introduction: on widely foraging for Kalahari lizards
- I Organismal patterns of variation with foraging mode
- 1 Movement patterns in lizards: measurement, modality, and behavioral correlates
- 2 Morphology, performance, and foraging mode
- 3 Physiological correlates of lizard foraging mode
- 4 Lizard energetics and the sit-and-wait vs. wide-foraging paradigm
- 5 Feeding ecology in the natural world
- 6 Why is intraspecific niche partitioning more common in snakes than in lizards?
- 7 Herbivory and foraging mode in lizards
- 8 Lizard chemical senses, chemosensory behavior, and foraging mode
- 9 Patterns of head shape variation in lizards: morphological correlates of foraging mode
- 10 Prey capture and prey processing behavior and the evolution of lingual and sensory characteristics: divergences and convergences in lizard feeding biology
- 11 The meaning and consequences of foraging mode in snakes
- II Environmental influences on foraging mode
- Index
- References
Summary
Introduction
Foraging mode, originally defined on the basis of clear differences in behaviors used to find and capture prey (MacArthur and Pianka, 1966; Pianka, 1966; Schoener, 1971) has become a central paradigm in lizard ecology (see, for example, Huey and Pianka, 1981; Vitt and Congdon, 1978; Cooper, 1994a, b, 1995a, b; Perry, 1999; Perry and Pianka, 1997; Perry et al., 1990). Sit-and-wait (often referred to as “ambush”) foragers pursue prey detected visually from short distances, often returning to the same perch after capturing a prey item. Wide (often referred to as “active”) foragers move through the environment in search of prey that are often hidden, using a combination of visual and chemical cues to locate and discriminate prey. Trade-offs between energy invested in capture versus search for these two foraging modes are key elements of optimal foraging theory (MacArthur and Pianka, 1966; Charnov, 1976; Kamil, 1983). Identification of this foraging dichotomy has stimulated lizard research in many areas, including ecology, behavior, life histories, and physiology, to mention a few.
The foraging mode paradigm is much more complex than previously envisioned, as evidenced by research presented in other chapters in this book. For example, what appeared to be a sharp historical separation of foraging modes (see, for example, Pianka and Vitt, 2003; Vitt et al., 2003) is replete with exceptions embedded in major clades, suggesting either loss of or multiple origins of traits often linked to foraging mode (see, for example, Cooper, 1997; Cooper et al., 1997).
- Type
- Chapter
- Information
- Lizard Ecology , pp. 141 - 172Publisher: Cambridge University PressPrint publication year: 2007
References
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