Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors

Factors that influence the composition and diversity of soil nematode communities on oceanic islands are poorly understood. In this study, we evaluated the soil nematode communities and associated biotic and abiotic factors on five oceanic islands in the north of the South China Sea. We detected 38...

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Autores principales:	Xionghui Liao, Tongqing Song, Ying Xiong, Dongsheng Zou, Kelin Wang, Hu Du, Jie Zhao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Soil nematodes Oceanic islands Latitude Temperature Potassium Moisture Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/e2227190ac6646718947b677a343bee8
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spelling	oai:doaj.org-article:e2227190ac6646718947b677a343bee82021-12-01T04:49:38ZSoil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors1470-160X10.1016/j.ecolind.2021.107619https://doaj.org/article/e2227190ac6646718947b677a343bee82021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21002843https://doaj.org/toc/1470-160XFactors that influence the composition and diversity of soil nematode communities on oceanic islands are poorly understood. In this study, we evaluated the soil nematode communities and associated biotic and abiotic factors on five oceanic islands in the north of the South China Sea. We detected 38 nematode genera and found that bacterivores and fungivores were the dominant trophic groups, representing 54.2–70.4% and 15.1–35.3%, respectively, of total soil nematode abundance. The abundances of total soil nematodes and of all trophic groups, maturity, structure indices and nematode diversity were positively correlated with island latitude and area, and were negatively correlated with soil total K and annual temperature. In addition, the abundances of total soil nematodes, bacterivores, herbivores and nematode dominance index were positively associated with soil available K. The abundances of total soil nematodes, fungivores, herbivores, predators and omnivores, maturity, structure, Shannon diversity indices were positively related to soil moisture. Variation partitioning analysis showed that the combination of soil properties and climatic-geographical factors explained more of the variation (26.8–61.5%). The results suggest that larger island can maintain greater nematode diversity than smaller islands due to the greater diversity of habitats on larger island. The key climatic-geographical and edaphic factors affecting soil nematode communities were latitude, annual temperature, soil moisture and total K, respectivelyXionghui LiaoTongqing SongYing XiongDongsheng ZouKelin WangHu DuJie ZhaoElsevierarticleSoil nematodesOceanic islandsLatitudeTemperaturePotassiumMoistureEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107619- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Soil nematodes Oceanic islands Latitude Temperature Potassium Moisture Ecology QH540-549.5
spellingShingle	Soil nematodes Oceanic islands Latitude Temperature Potassium Moisture Ecology QH540-549.5 Xionghui Liao Tongqing Song Ying Xiong Dongsheng Zou Kelin Wang Hu Du Jie Zhao Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors
description	Factors that influence the composition and diversity of soil nematode communities on oceanic islands are poorly understood. In this study, we evaluated the soil nematode communities and associated biotic and abiotic factors on five oceanic islands in the north of the South China Sea. We detected 38 nematode genera and found that bacterivores and fungivores were the dominant trophic groups, representing 54.2–70.4% and 15.1–35.3%, respectively, of total soil nematode abundance. The abundances of total soil nematodes and of all trophic groups, maturity, structure indices and nematode diversity were positively correlated with island latitude and area, and were negatively correlated with soil total K and annual temperature. In addition, the abundances of total soil nematodes, bacterivores, herbivores and nematode dominance index were positively associated with soil available K. The abundances of total soil nematodes, fungivores, herbivores, predators and omnivores, maturity, structure, Shannon diversity indices were positively related to soil moisture. Variation partitioning analysis showed that the combination of soil properties and climatic-geographical factors explained more of the variation (26.8–61.5%). The results suggest that larger island can maintain greater nematode diversity than smaller islands due to the greater diversity of habitats on larger island. The key climatic-geographical and edaphic factors affecting soil nematode communities were latitude, annual temperature, soil moisture and total K, respectively
format	article
author	Xionghui Liao Tongqing Song Ying Xiong Dongsheng Zou Kelin Wang Hu Du Jie Zhao
author_facet	Xionghui Liao Tongqing Song Ying Xiong Dongsheng Zou Kelin Wang Hu Du Jie Zhao
author_sort	Xionghui Liao
title	Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors
title_short	Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors
title_full	Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors
title_fullStr	Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors
title_full_unstemmed	Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors
title_sort	soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the south china sea: influence of biotic and abiotic factors
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/e2227190ac6646718947b677a343bee8
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Soil nematode communities on five oceanic islands across a latitudinal gradient in the north of the South China Sea: Influence of biotic and abiotic factors

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