Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, Xinjiang

The niche breadth, niche overlap, and interspecific associations of species in Bayinbuluke alpine meadow were investigated using ecology statistics to explore the competitive connection between the species and restricted resources in the community and the stable coexistence relationships among popul...

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Main Authors: Wang Juan, Liu Junjie, Liu Chao, Ding Xiaoyu, Wang Yong
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Ecological Indicators
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X2300095X
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author Wang Juan
Liu Junjie
Liu Chao
Ding Xiaoyu
Wang Yong
author_facet Wang Juan
Liu Junjie
Liu Chao
Ding Xiaoyu
Wang Yong
author_sort Wang Juan
collection DOAJ
description The niche breadth, niche overlap, and interspecific associations of species in Bayinbuluke alpine meadow were investigated using ecology statistics to explore the competitive connection between the species and restricted resources in the community and the stable coexistence relationships among populations under different nitrogen addition gradients in the short term. The findings demonstrate the following. (1) The importance value of species shifted, with the fertilization samples Festuca ovina and Poa annua becoming the species with the highest importance value. Species richness fell gradually as fertilization gradient progressed, while the number of species grew initially and subsequently decreased. (2) Under different fertilization methods, the niche width and niche overlap values of the principal species changed. A positive link was found between niche width values and critical values under fertilization treatment compared with the controls. (3) By using the variance ratio approach, Pearson’s correlation, and the association coefficient test, a positive correlation was discovered among species under low fertilization gradient treatment. However, a negative correlation was found under other gradients.
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spelling doaj.art-9080f6b6b22c4ee9bb4bf04212320cb82023-02-24T04:29:52ZengElsevierEcological Indicators1470-160X2023-03-01147109953Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, XinjiangWang Juan0Liu Junjie1Liu Chao2Ding Xiaoyu3Wang Yong4School of Ecology and Environment, Xinjiang University, Urumqi, Xinjiang 830046, China; Key Laboratory of Xinjiang Oasis Ecology, Ministry of Education, Urumqi, Xinjiang 830046, China; Xinjiang Jinghe Temperate Desert Ecosystem Field Scientific Observation and Research Station of the Ministry of Education, Urumqi, Xinjiang 830046, ChinaSchool of Ecology and Environment, Xinjiang University, Urumqi, Xinjiang 830046, China; Key Laboratory of Xinjiang Oasis Ecology, Ministry of Education, Urumqi, Xinjiang 830046, China; Xinjiang Jinghe Temperate Desert Ecosystem Field Scientific Observation and Research Station of the Ministry of Education, Urumqi, Xinjiang 830046, China; Corresponding author at: School of Ecology and Environment, Xinjiang University, Urumqi, Xinjiang 830046, China (Liu Junjie).School of Ecology and Environment, Xinjiang University, Urumqi, Xinjiang 830046, China; Key Laboratory of Xinjiang Oasis Ecology, Ministry of Education, Urumqi, Xinjiang 830046, China; Xinjiang Jinghe Temperate Desert Ecosystem Field Scientific Observation and Research Station of the Ministry of Education, Urumqi, Xinjiang 830046, ChinaSchool of Ecology and Environment, Xinjiang University, Urumqi, Xinjiang 830046, China; Key Laboratory of Xinjiang Oasis Ecology, Ministry of Education, Urumqi, Xinjiang 830046, China; Xinjiang Jinghe Temperate Desert Ecosystem Field Scientific Observation and Research Station of the Ministry of Education, Urumqi, Xinjiang 830046, ChinaDepartment of Architecture, Henan Vocational, and Technical College of Architecture, Zhengzhou, Henan Province 450064, ChinaThe niche breadth, niche overlap, and interspecific associations of species in Bayinbuluke alpine meadow were investigated using ecology statistics to explore the competitive connection between the species and restricted resources in the community and the stable coexistence relationships among populations under different nitrogen addition gradients in the short term. The findings demonstrate the following. (1) The importance value of species shifted, with the fertilization samples Festuca ovina and Poa annua becoming the species with the highest importance value. Species richness fell gradually as fertilization gradient progressed, while the number of species grew initially and subsequently decreased. (2) Under different fertilization methods, the niche width and niche overlap values of the principal species changed. A positive link was found between niche width values and critical values under fertilization treatment compared with the controls. (3) By using the variance ratio approach, Pearson’s correlation, and the association coefficient test, a positive correlation was discovered among species under low fertilization gradient treatment. However, a negative correlation was found under other gradients.http://www.sciencedirect.com/science/article/pii/S1470160X2300095XImportance valuesNiche widthNiche overlapInterspecific connectionCommunity association
spellingShingle Wang Juan
Liu Junjie
Liu Chao
Ding Xiaoyu
Wang Yong
Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, Xinjiang
Ecological Indicators
Importance values
Niche width
Niche overlap
Interspecific connection
Community association
title Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, Xinjiang
title_full Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, Xinjiang
title_fullStr Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, Xinjiang
title_full_unstemmed Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, Xinjiang
title_short Species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of Tianshan Mountain, Xinjiang
title_sort species niche and interspecific associations alter flora structure along a fertilization gradient in an alpine meadow of tianshan mountain xinjiang
topic Importance values
Niche width
Niche overlap
Interspecific connection
Community association
url http://www.sciencedirect.com/science/article/pii/S1470160X2300095X
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