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A relationship between species richness and evenness that depends on specific relative abundance distribution
Although many ecologists focus on the relationship between species richness (S) and evenness (E), conflicts between observation and theory are difficult to reconcile. Empirical S–E relationships were not consistent, while relationships show strong correlation between S and E. Since E essentially dep...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6003394/ https://www.ncbi.nlm.nih.gov/pubmed/29910980 http://dx.doi.org/10.7717/peerj.4951 |
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author | Su, Qiang |
author_facet | Su, Qiang |
author_sort | Su, Qiang |
collection | PubMed |
description | Although many ecologists focus on the relationship between species richness (S) and evenness (E), conflicts between observation and theory are difficult to reconcile. Empirical S–E relationships were not consistent, while relationships show strong correlation between S and E. Since E essentially depended on the relative abundance distribution (RAD), the hypothesis of this paper was that the S–E relationship should be determined by RAD. Theoretical S–E relationships for various RADs have already been reported, but they were rarely assessed by the raw data. This study constructed S–E relationships for a specific RAD, which indicated that if the community had a fractal distribution of rank abundance, E would decrease with S, and the S–E relationship would be unique for a given RAD. Such theoretical expectations were supported by three datasets with 82 samples, which suggested that the S–E relationship were controlled by RAD and inconsistent S–E relationships in statistical analyses could be accounted for by the variation of underlying RAD model between communities. From the perspective of RAD, it could be too early to split the diversity into S and E only based on the S–E relationship in statistical analyses. |
format | Online Article Text |
id | pubmed-6003394 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-60033942018-06-15 A relationship between species richness and evenness that depends on specific relative abundance distribution Su, Qiang PeerJ Biodiversity Although many ecologists focus on the relationship between species richness (S) and evenness (E), conflicts between observation and theory are difficult to reconcile. Empirical S–E relationships were not consistent, while relationships show strong correlation between S and E. Since E essentially depended on the relative abundance distribution (RAD), the hypothesis of this paper was that the S–E relationship should be determined by RAD. Theoretical S–E relationships for various RADs have already been reported, but they were rarely assessed by the raw data. This study constructed S–E relationships for a specific RAD, which indicated that if the community had a fractal distribution of rank abundance, E would decrease with S, and the S–E relationship would be unique for a given RAD. Such theoretical expectations were supported by three datasets with 82 samples, which suggested that the S–E relationship were controlled by RAD and inconsistent S–E relationships in statistical analyses could be accounted for by the variation of underlying RAD model between communities. From the perspective of RAD, it could be too early to split the diversity into S and E only based on the S–E relationship in statistical analyses. PeerJ Inc. 2018-06-12 /pmc/articles/PMC6003394/ /pubmed/29910980 http://dx.doi.org/10.7717/peerj.4951 Text en ©2018 Su http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
spellingShingle | Biodiversity Su, Qiang A relationship between species richness and evenness that depends on specific relative abundance distribution |
title | A relationship between species richness and evenness that depends on specific relative abundance distribution |
title_full | A relationship between species richness and evenness that depends on specific relative abundance distribution |
title_fullStr | A relationship between species richness and evenness that depends on specific relative abundance distribution |
title_full_unstemmed | A relationship between species richness and evenness that depends on specific relative abundance distribution |
title_short | A relationship between species richness and evenness that depends on specific relative abundance distribution |
title_sort | relationship between species richness and evenness that depends on specific relative abundance distribution |
topic | Biodiversity |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6003394/ https://www.ncbi.nlm.nih.gov/pubmed/29910980 http://dx.doi.org/10.7717/peerj.4951 |
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