Understanding the impact of third-party species on pairwise coexistence

<jats:p>The persistence of virtually every single species depends on both the presence of other species and the specific environmental conditions in a given location. Because in natural settings many of these conditions are unknown, research has been centered on finding the fraction of possibl...

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Main Authors: Deng, Jie, Taylor, Washington, Saavedra, Serguei
Other Authors: Massachusetts Institute of Technology. Department of Civil Engineering
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022
Online Access:https://hdl.handle.net/1721.1/146544
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author Deng, Jie
Taylor, Washington
Saavedra, Serguei
author2 Massachusetts Institute of Technology. Department of Civil Engineering
author_facet Massachusetts Institute of Technology. Department of Civil Engineering
Deng, Jie
Taylor, Washington
Saavedra, Serguei
author_sort Deng, Jie
collection MIT
description <jats:p>The persistence of virtually every single species depends on both the presence of other species and the specific environmental conditions in a given location. Because in natural settings many of these conditions are unknown, research has been centered on finding the fraction of possible conditions (probability) leading to species coexistence. The focus has been on the persistence probability of an entire multispecies community (formed of either two or more species). However, the methodological and philosophical question has always been whether we can observe the entire community and, if not, what the conditions are under which an observed subset of the community can persist as part of a larger multispecies system. Here, we derive long-term (using analytical calculations) and short-term (using simulations and experimental data) system-level indicators of the effect of third-party species on the coexistence probability of a pair (or subset) of species under unknown environmental conditions. We demonstrate that the fraction of conditions incompatible with the possible coexistence of a pair of species tends to become vanishingly small within systems of increasing numbers of species. Yet, the probability of pairwise coexistence in isolation remains approximately the expected probability of pairwise coexistence in more diverse assemblages. In addition, we found that when third-party species tend to reduce (resp. increase) the coexistence probability of a pair, they tend to exhibit slower (resp. faster) rates of competitive exclusion. Long-term and short-term effects of the remaining third-party species on all possible specific pairs in a system are not equally distributed, but these differences can be mapped and anticipated under environmental uncertainty.</jats:p>
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spelling mit-1721.1/1465442022-11-19T03:07:06Z Understanding the impact of third-party species on pairwise coexistence Deng, Jie Taylor, Washington Saavedra, Serguei Massachusetts Institute of Technology. Department of Civil Engineering Massachusetts Institute of Technology. Center for Theoretical Physics <jats:p>The persistence of virtually every single species depends on both the presence of other species and the specific environmental conditions in a given location. Because in natural settings many of these conditions are unknown, research has been centered on finding the fraction of possible conditions (probability) leading to species coexistence. The focus has been on the persistence probability of an entire multispecies community (formed of either two or more species). However, the methodological and philosophical question has always been whether we can observe the entire community and, if not, what the conditions are under which an observed subset of the community can persist as part of a larger multispecies system. Here, we derive long-term (using analytical calculations) and short-term (using simulations and experimental data) system-level indicators of the effect of third-party species on the coexistence probability of a pair (or subset) of species under unknown environmental conditions. We demonstrate that the fraction of conditions incompatible with the possible coexistence of a pair of species tends to become vanishingly small within systems of increasing numbers of species. Yet, the probability of pairwise coexistence in isolation remains approximately the expected probability of pairwise coexistence in more diverse assemblages. In addition, we found that when third-party species tend to reduce (resp. increase) the coexistence probability of a pair, they tend to exhibit slower (resp. faster) rates of competitive exclusion. Long-term and short-term effects of the remaining third-party species on all possible specific pairs in a system are not equally distributed, but these differences can be mapped and anticipated under environmental uncertainty.</jats:p> 2022-11-18T18:18:39Z 2022-11-18T18:18:39Z 2022-10 2022-11-18T18:11:14Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/146544 Deng, Jie, Taylor, Washington and Saavedra, Serguei. 2022. "Understanding the impact of third-party species on pairwise coexistence." PLOS Computational Biology, 18 (10). en 10.1371/journal.pcbi.1010630 PLOS Computational Biology Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Public Library of Science (PLoS) PLoS
spellingShingle Deng, Jie
Taylor, Washington
Saavedra, Serguei
Understanding the impact of third-party species on pairwise coexistence
title Understanding the impact of third-party species on pairwise coexistence
title_full Understanding the impact of third-party species on pairwise coexistence
title_fullStr Understanding the impact of third-party species on pairwise coexistence
title_full_unstemmed Understanding the impact of third-party species on pairwise coexistence
title_short Understanding the impact of third-party species on pairwise coexistence
title_sort understanding the impact of third party species on pairwise coexistence
url https://hdl.handle.net/1721.1/146544
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