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Aquatic Food WebsAn ecosystem approach$
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Andrea Belgrano, Ursula M. Scharler, Jennifer Dunne, and Robert E. Ulanowicz

Print publication date: 2005

Print ISBN-13: 9780198564836

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780198564836.001.0001

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Size-based analyses of aquatic food webs

Size-based analyses of aquatic food webs

(p.86) CHAPTER 8 Size-based analyses of aquatic food webs
Aquatic Food Webs

Simon Jennings

Oxford University Press

This chapter presents size-based analyses of aquatic food webs, where body size rather than species identity is the principle descriptor of an individual's role in the food web, provides insights into food web structure and function that complement, and extends those from species-based analyses. Focus is given to body size because it underpins predator-prey interactions and dictates how the biological properties of individuals change with size. Thus, size-based food web analyses offer an approach for integrating community and ecosystem ecology with energetic and metabolic theory.

Keywords:   body size, food web structure, fisheries, predator-prey interactions, allometry, scaling, metabolic theory

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