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Competition in Abies kawakamii forests at subtropical high mountain in Taiwan

The spatial patterns of plant species reflect the competitive pressures on individuals. To generate Competition indices (CI), we measured the diameter at breast height (DBH), crown volumes (CV) and the distances between trees. In this study, Abies kawakamii were divided based on the dominant compone...

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Autores principales: Wang, Wei, Liao, Min-Chun, Tzeng, Hsy-Yu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8297911/
https://www.ncbi.nlm.nih.gov/pubmed/34293040
http://dx.doi.org/10.1371/journal.pone.0254791
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author Wang, Wei
Liao, Min-Chun
Tzeng, Hsy-Yu
author_facet Wang, Wei
Liao, Min-Chun
Tzeng, Hsy-Yu
author_sort Wang, Wei
collection PubMed
description The spatial patterns of plant species reflect the competitive pressures on individuals. To generate Competition indices (CI), we measured the diameter at breast height (DBH), crown volumes (CV) and the distances between trees. In this study, Abies kawakamii were divided based on the dominant component of the understory (moss or bamboo) to (1) investigate the relationship between the CI and stand structural attributes (SSAs); (2) compare the inter- and intraspecies; CIs as well as living and dead individual CIs; and (3) examine the relationship between the DBH and CI. The current findings indicate that the understory composition affected the CI and SSAs. The interspecies CI was larger than the intraspecies CI when bamboo-dominated the understory. In contrast, the intraspecies CI was larger than the interspecies CI when the understory was dominated by moss. The CI of dead individuals was higher than that of live individuals due to the biological characteristics and regeneration needs of Abies. Additionally, sensitivity to the environment and available resources may exert more pressure on young individuals than mature individuals.
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spelling pubmed-82979112021-07-31 Competition in Abies kawakamii forests at subtropical high mountain in Taiwan Wang, Wei Liao, Min-Chun Tzeng, Hsy-Yu PLoS One Research Article The spatial patterns of plant species reflect the competitive pressures on individuals. To generate Competition indices (CI), we measured the diameter at breast height (DBH), crown volumes (CV) and the distances between trees. In this study, Abies kawakamii were divided based on the dominant component of the understory (moss or bamboo) to (1) investigate the relationship between the CI and stand structural attributes (SSAs); (2) compare the inter- and intraspecies; CIs as well as living and dead individual CIs; and (3) examine the relationship between the DBH and CI. The current findings indicate that the understory composition affected the CI and SSAs. The interspecies CI was larger than the intraspecies CI when bamboo-dominated the understory. In contrast, the intraspecies CI was larger than the interspecies CI when the understory was dominated by moss. The CI of dead individuals was higher than that of live individuals due to the biological characteristics and regeneration needs of Abies. Additionally, sensitivity to the environment and available resources may exert more pressure on young individuals than mature individuals. Public Library of Science 2021-07-22 /pmc/articles/PMC8297911/ /pubmed/34293040 http://dx.doi.org/10.1371/journal.pone.0254791 Text en © 2021 Wang et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Wang, Wei
Liao, Min-Chun
Tzeng, Hsy-Yu
Competition in Abies kawakamii forests at subtropical high mountain in Taiwan
title Competition in Abies kawakamii forests at subtropical high mountain in Taiwan
title_full Competition in Abies kawakamii forests at subtropical high mountain in Taiwan
title_fullStr Competition in Abies kawakamii forests at subtropical high mountain in Taiwan
title_full_unstemmed Competition in Abies kawakamii forests at subtropical high mountain in Taiwan
title_short Competition in Abies kawakamii forests at subtropical high mountain in Taiwan
title_sort competition in abies kawakamii forests at subtropical high mountain in taiwan
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8297911/
https://www.ncbi.nlm.nih.gov/pubmed/34293040
http://dx.doi.org/10.1371/journal.pone.0254791
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