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Population and Community Ecology of Ontogenetic Development$
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André M. de Roos and Lennart Persson

Print publication date: 2013

Print ISBN-13: 9780691137575

Published to Princeton Scholarship Online: October 2017

DOI: 10.23943/princeton/9780691137575.001.0001

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Ontogenetic Niche Shifts

Ontogenetic Niche Shifts

(p.196) Chapter 6 Ontogenetic Niche Shifts
Population and Community Ecology of Ontogenetic Development

André M. de Roos

Lennart Persson

Princeton University Press

This chapter considers the consequences for community structure of ontogenetic diet shifts that involve the use of different resources in different life history stages, whereby these resources are in limited supply and are hence competed for by all individuals foraging on them. It explores the consequences of ontogenetic diet shifts using stage-structured biomass models that account for two basic resources, a stage-structured consumer population, for which we distinguish between juveniles and adults, and up to two unstructured predator populations. The most extended model is therefore closely related to the model analyzed in Chapter 5, except for the inclusion of an additional basic resource. The equations of the full model are summarized and default parameter values are listed.

Keywords:   ontogenetic diet shifts, ecology, ecological dynamics, community structure, consumer-resource systems

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