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Theoretical Approaches to Environmen...

Miller, Zachary R.

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Theoretical Approaches to Environmental Feedbacks and Community Coexistence.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Theoretical Approaches to Environmental Feedbacks and Community Coexistence./
Author:	Miller, Zachary R.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	186 p.
Notes:	Source: Dissertations Abstracts International, Volume: 84-03, Section: B.
Contained By:	Dissertations Abstracts International84-03B.
Subject:	Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29257120
ISBN:	9798841794974

Theoretical Approaches to Environmental Feedbacks and Community Coexistence.
Miller, Zachary R.

Theoretical Approaches to Environmental Feedbacks and Community Coexistence. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 186 p.

Source: Dissertations Abstracts International, Volume: 84-03, Section: B.

Thesis (Ph.D.)--The University of Chicago, 2022.

This item must not be sold to any third party vendors.

Distinct biological species can coexist in the same ecosystem by occupying distinct niches. However, the niches available in a given environment -- which reflect the range of environmental conditions and limiting factors that are present -- are not necessarily a fixed property of the system. Environmental conditions can be shaped, and possibly diversified, by the resident community, through modifications that range from chemical excretion to physical remodeling to biotic control of local environmental microbiomes. To varying degrees, all species modify their local environment, driving changes that can feed back to affect the set of available niches and ultimately the composition and coexistence of the community. Here, we study minimal mathematical models for these kinds of modifications in the context of community coexistence. We review some existing empirical and theoretical approaches to understanding environmental feedbacks, highlighting the essential similarities in the dynamics of several system-specific examples. We then extend and carefully examine one prominent model for plant-soil feedbacks, a broad class of environmental feedbacks that operate in plant communities. We show that this widely-used model cannot account for the coexistence of more than two plant species. We go on to develop a simple, nested modeling framework for environmental feedbacks based on the classic metapopulation paradigm. We show that this model can account for the coexistence of an arbitrary number of species, and we derive analytical characterizations of when and how species coexist in ecosystems with environmental feedbacks.

ISBN: 9798841794974Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Coexistence theory

Theoretical Approaches to Environmental Feedbacks and Community Coexistence.
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245 1 0 $a Theoretical Approaches to Environmental Feedbacks and Community Coexistence.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 186 p.
500 $a Source: Dissertations Abstracts International, Volume: 84-03, Section: B.
500 $a Advisor: Allesina, Stefano.
502 $a Thesis (Ph.D.)--The University of Chicago, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a Distinct biological species can coexist in the same ecosystem by occupying distinct niches. However, the niches available in a given environment -- which reflect the range of environmental conditions and limiting factors that are present -- are not necessarily a fixed property of the system. Environmental conditions can be shaped, and possibly diversified, by the resident community, through modifications that range from chemical excretion to physical remodeling to biotic control of local environmental microbiomes. To varying degrees, all species modify their local environment, driving changes that can feed back to affect the set of available niches and ultimately the composition and coexistence of the community. Here, we study minimal mathematical models for these kinds of modifications in the context of community coexistence. We review some existing empirical and theoretical approaches to understanding environmental feedbacks, highlighting the essential similarities in the dynamics of several system-specific examples. We then extend and carefully examine one prominent model for plant-soil feedbacks, a broad class of environmental feedbacks that operate in plant communities. We show that this widely-used model cannot account for the coexistence of more than two plant species. We go on to develop a simple, nested modeling framework for environmental feedbacks based on the classic metapopulation paradigm. We show that this model can account for the coexistence of an arbitrary number of species, and we derive analytical characterizations of when and how species coexist in ecosystems with environmental feedbacks.
590 $a School code: 0330.
650 4 $a Ecology. $3 516476
650 4 $a Applied mathematics. $3 2122814
650 4 $a Biology. $3 522710
650 4 $a Environmental studies. $3 2122803
653 $a Coexistence theory
653 $a Ecosystem engineering
653 $a Legacy effects
653 $a Metapopulations
653 $a Plant-soil feedbacks
690 $a 0329
690 $a 0364
690 $a 0306
690 $a 0477
710 2 $a The University of Chicago. $b Ecology and Evolution. $3 3169411
773 0 $t Dissertations Abstracts International $g 84-03B.
790 $a 0330
791 $a Ph.D.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29257120