Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau

Abstract Alpine wetlands on the Qinghai-Tibetan Plateau are undergoing degradation. However, little is known regarding the response of soil nematodes to this degradation. We conducted investigations in a wet meadow (WM), a grassland meadow (GM), a moderately degraded meadow (MDM) and a severely degr...

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Autores principales:	Pengfei Wu, Hongzhi Zhang, Liwei Cui, Kyle Wickings, Shenglei Fu, Changting Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/82f8afa8445a4120b1d05f83dd341cae
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spelling	oai:doaj.org-article:82f8afa8445a4120b1d05f83dd341cae2021-12-02T15:05:51ZImpacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau10.1038/s41598-017-00805-52045-2322https://doaj.org/article/82f8afa8445a4120b1d05f83dd341cae2017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00805-5https://doaj.org/toc/2045-2322Abstract Alpine wetlands on the Qinghai-Tibetan Plateau are undergoing degradation. However, little is known regarding the response of soil nematodes to this degradation. We conducted investigations in a wet meadow (WM), a grassland meadow (GM), a moderately degraded meadow (MDM) and a severely degraded meadow (SDM) from April to October 2011. The nematode community taxonomic composition was similar in the WM, GM and MDM and differed from that in the SDM. The abundance declined significantly from the WM to the SDM. The taxonomic richness and Shannon index were comparable between the WM and MDM but were significantly lower in the SDM, and the Pielou evenness showed the opposite pattern. The composition, abundance and diversity in the WM and SDM were relatively stable over time compared with other habitats. The abundances of all trophic groups, aside from predators, decreased with degradation. The relative abundances of herbivores, bacterivores, predators and fungivores were stable, while those of omnivores and algivores responded negatively to degradation. Changes in the nematode community were mainly driven by plant species richness and soil available N. Our results demonstrate that alpine wetland degradation significantly affects the soil nematode communities, suppressing but not shifting the main energy pathways through the soil nematode communities.Pengfei WuHongzhi ZhangLiwei CuiKyle WickingsShenglei FuChangting WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pengfei Wu Hongzhi Zhang Liwei Cui Kyle Wickings Shenglei Fu Changting Wang Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau
description	Abstract Alpine wetlands on the Qinghai-Tibetan Plateau are undergoing degradation. However, little is known regarding the response of soil nematodes to this degradation. We conducted investigations in a wet meadow (WM), a grassland meadow (GM), a moderately degraded meadow (MDM) and a severely degraded meadow (SDM) from April to October 2011. The nematode community taxonomic composition was similar in the WM, GM and MDM and differed from that in the SDM. The abundance declined significantly from the WM to the SDM. The taxonomic richness and Shannon index were comparable between the WM and MDM but were significantly lower in the SDM, and the Pielou evenness showed the opposite pattern. The composition, abundance and diversity in the WM and SDM were relatively stable over time compared with other habitats. The abundances of all trophic groups, aside from predators, decreased with degradation. The relative abundances of herbivores, bacterivores, predators and fungivores were stable, while those of omnivores and algivores responded negatively to degradation. Changes in the nematode community were mainly driven by plant species richness and soil available N. Our results demonstrate that alpine wetland degradation significantly affects the soil nematode communities, suppressing but not shifting the main energy pathways through the soil nematode communities.
format	article
author	Pengfei Wu Hongzhi Zhang Liwei Cui Kyle Wickings Shenglei Fu Changting Wang
author_facet	Pengfei Wu Hongzhi Zhang Liwei Cui Kyle Wickings Shenglei Fu Changting Wang
author_sort	Pengfei Wu
title	Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau
title_short	Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau
title_full	Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau
title_fullStr	Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau
title_full_unstemmed	Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau
title_sort	impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the qinghai-tibetan plateau
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/82f8afa8445a4120b1d05f83dd341cae
work_keys_str_mv	AT pengfeiwu impactsofalpinewetlanddegradationonthecompositiondiversityandtrophicstructureofsoilnematodesontheqinghaitibetanplateau AT hongzhizhang impactsofalpinewetlanddegradationonthecompositiondiversityandtrophicstructureofsoilnematodesontheqinghaitibetanplateau AT liweicui impactsofalpinewetlanddegradationonthecompositiondiversityandtrophicstructureofsoilnematodesontheqinghaitibetanplateau AT kylewickings impactsofalpinewetlanddegradationonthecompositiondiversityandtrophicstructureofsoilnematodesontheqinghaitibetanplateau AT shengleifu impactsofalpinewetlanddegradationonthecompositiondiversityandtrophicstructureofsoilnematodesontheqinghaitibetanplateau AT changtingwang impactsofalpinewetlanddegradationonthecompositiondiversityandtrophicstructureofsoilnematodesontheqinghaitibetanplateau
_version_	1718388653706706944

Impacts of alpine wetland degradation on the composition, diversity and trophic structure of soil nematodes on the Qinghai-Tibetan Plateau

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