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Food Webs (MPB-50)$
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Kevin S. McCann

Print publication date: 2011

Print ISBN-13: 9780691134178

Published to Princeton Scholarship Online: October 2017

DOI: 10.23943/princeton/9780691134178.001.0001

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Coupling Modules in Space: A Landscape Theory

Coupling Modules in Space: A Landscape Theory

(p.145) Chapter Nine Coupling Modules in Space: A Landscape Theory
Food Webs (MPB-50)

Kevin S. McCann

Princeton University Press

This chapter examines food webs at the landscape scale by focusing on the large-scale food web architecture that is deeply constrained by space. It begins with a discussion of how variability in space, time, and food web structure, coupled with the ability of organisms to rapidly respond to variation, affect the maintenance of the food web and its functions. It then explains how individual traits such as body size and foraging behavior relate to food web structure in space and time. It also considers the role of spatial constraints on food webs and how the existence of fast–slow pathways coupled by mobile adaptive predators gives rise to spatial asynchrony in the resources. The chapter concludes with a review of some empirical examples to show that some food webs display the bird feeder effect and that resource coupling of distinct habitats appears to stabilize food webs.

Keywords:   food webs, space, food web structure, traits, body size, foraging, mobile adaptive predators, asynchrony, bird feeder effect, habitat

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