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Evolutionary Community Ecology$
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Mark A. McPeek

Print publication date: 2017

Print ISBN-13: 9780691088778

Published to Princeton Scholarship Online: May 2018

DOI: 10.23943/princeton/9780691088778.001.0001

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The Community of Ecological Opportunities

The Community of Ecological Opportunities

(p.23) Chapter Two The Community of Ecological Opportunities
Evolutionary Community Ecology

Mark A. McPeek

Princeton University Press

This chapter examines ecological opportunities that are available to species in various positions within a biological community, with particular emphasis on identifying the criteria necessary for an ecological opportunity to exist. Before discussing what performance capabilities a species must have to fill different types of ecological opportunities and what is required for invasibility of species into different functional positions in a community, the chapter considers the different frameworks that have been used to model species interactions. It then describes resource and apparent competition to show how resource availability from below and predation pressure from above can affect the types of species that can exploit specifc ecological opportunities. It also analyzes communities with three trophic levels, intraguild predation or omnivory, mutualism, the mechanisms that foster coexistence between one plant species and one pollinator species, and the case of one plant species with multiple pollinators.

Keywords:   species, ecological opportunity, community, invasibility, species interaction, resource competition, predation, omnivory, mutualism, coexistence

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