Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region
Mature Tiankeng, the negative geological landform surrounded by integral walls as refugia in Karst regions, conserves the unique plant species of karst regions due to isolation from human disturbances and different local microclimates. However, studies exploring the soil biodiversity of mature Tiank...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X24014912 |
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| author | Junbo Yang Xiaohui Wang Keyi Wang Danjuan Zeng Ling Mo Shuai Li Baozhu Fang Bhagwan Rekadwad Wenjun Li Gaozhong Pu |
| author_facet | Junbo Yang Xiaohui Wang Keyi Wang Danjuan Zeng Ling Mo Shuai Li Baozhu Fang Bhagwan Rekadwad Wenjun Li Gaozhong Pu |
| author_sort | Junbo Yang |
| collection | DOAJ |
| description | Mature Tiankeng, the negative geological landform surrounded by integral walls as refugia in Karst regions, conserves the unique plant species of karst regions due to isolation from human disturbances and different local microclimates. However, studies exploring the soil biodiversity of mature Tiankengs are lacking entirely. Soil samples were taken from four mature Tiankengs in southwest China, and the species diversity and functions of bacteria and fungi were determined. Generally, the soil nutrient contents, species diversity, and unique species richness of bacteria and fungi were higher in the Tiankeng than in the outside. The microbial functions of human pathogenic, aromatic compounds and plastic degradation associated were higher in Tiankeng than in the outside. Compare to the outside, more bacterial and fungal species in Tiankeng assembled more network modules as well as microbial functions. Results suggested that compared with the outside, rich soil nutrients may contribute the higher microbial diversity and function formed in mature Tiankengs. Since the soil microbial hotspot was defined as soil with small volume and high process rates, we suggest that the theory of soil microbial hotspot may be applied on landscape scales. That is, mature Tiankengs may be treated as the soil microbial hotspots in karst region based on its small volume proportion but high soil nutrients, microbial diversity, and functions. We further suggest identifying the soil microbial hotspots in other landscapes, and this may be key to biological conservation and ecosystem stability with global changes. |
| format | Article |
| id | doaj-art-9274ab4fba2b4607abb4738be9715419 |
| institution | Kabale University |
| issn | 1470-160X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj-art-9274ab4fba2b4607abb4738be97154192025-01-31T05:10:35ZengElsevierEcological Indicators1470-160X2025-01-01170113034Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst regionJunbo Yang0Xiaohui Wang1Keyi Wang2Danjuan Zeng3Ling Mo4Shuai Li5Baozhu Fang6Bhagwan Rekadwad7Wenjun Li8Gaozhong Pu9Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, ChinaGuangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, ChinaGuangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, ChinaGuangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, ChinaGuangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, ChinaState Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; School of Life Sciences, Jiaying University, Meizhou 514015, ChinaState Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Xinjiang Key Laboratory of Biodiversity Conservation and Application in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaYenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575018, IndiaState Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Xinjiang Key Laboratory of Biodiversity Conservation and Application in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Corresponding authors at: State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China (W. Li); Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China (G. Pu).Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China; Corresponding authors at: State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China (W. Li); Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China (G. Pu).Mature Tiankeng, the negative geological landform surrounded by integral walls as refugia in Karst regions, conserves the unique plant species of karst regions due to isolation from human disturbances and different local microclimates. However, studies exploring the soil biodiversity of mature Tiankengs are lacking entirely. Soil samples were taken from four mature Tiankengs in southwest China, and the species diversity and functions of bacteria and fungi were determined. Generally, the soil nutrient contents, species diversity, and unique species richness of bacteria and fungi were higher in the Tiankeng than in the outside. The microbial functions of human pathogenic, aromatic compounds and plastic degradation associated were higher in Tiankeng than in the outside. Compare to the outside, more bacterial and fungal species in Tiankeng assembled more network modules as well as microbial functions. Results suggested that compared with the outside, rich soil nutrients may contribute the higher microbial diversity and function formed in mature Tiankengs. Since the soil microbial hotspot was defined as soil with small volume and high process rates, we suggest that the theory of soil microbial hotspot may be applied on landscape scales. That is, mature Tiankengs may be treated as the soil microbial hotspots in karst region based on its small volume proportion but high soil nutrients, microbial diversity, and functions. We further suggest identifying the soil microbial hotspots in other landscapes, and this may be key to biological conservation and ecosystem stability with global changes.http://www.sciencedirect.com/science/article/pii/S1470160X24014912KarstTiankengMicrobial diversitySoil hotspotEcosystem function |
| spellingShingle | Junbo Yang Xiaohui Wang Keyi Wang Danjuan Zeng Ling Mo Shuai Li Baozhu Fang Bhagwan Rekadwad Wenjun Li Gaozhong Pu Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region Ecological Indicators Karst Tiankeng Microbial diversity Soil hotspot Ecosystem function |
| title | Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region |
| title_full | Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region |
| title_fullStr | Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region |
| title_full_unstemmed | Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region |
| title_short | Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region |
| title_sort | mature tiankengs are biodiversity hotspots of soil microorganisms in the karst region |
| topic | Karst Tiankeng Microbial diversity Soil hotspot Ecosystem function |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X24014912 |
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