Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forest
Patterns and drivers of species–genetic diversity correlations (SGDCs) have been broadly examined across taxa and ecosystems and greatly deepen our understanding of how biodiversity is maintained. However, few studies have examined the role of canopy structural heterogeneity, which is a defining fea...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Plant Diversity |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468265924001495 |
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| author | Zhiliang Yao Xia Pan Xin Yang Xiaona Shao Bin Wang Yun Deng Zhiming Zhang Qiaoming Li Luxiang Lin |
| author_facet | Zhiliang Yao Xia Pan Xin Yang Xiaona Shao Bin Wang Yun Deng Zhiming Zhang Qiaoming Li Luxiang Lin |
| author_sort | Zhiliang Yao |
| collection | DOAJ |
| description | Patterns and drivers of species–genetic diversity correlations (SGDCs) have been broadly examined across taxa and ecosystems and greatly deepen our understanding of how biodiversity is maintained. However, few studies have examined the role of canopy structural heterogeneity, which is a defining feature of forests, in shaping SGDCs. Here, we determine what factors contribute to α- and β-species–genetic diversity correlations (i.e., α- and β-SGDCs) in a Chinese subtropical forest. For this purpose, we used neutral molecular markers to assess genetic variation in almost all adult individuals of the dominant tree species, Lithocarpus xylocarpus, across plots in the Ailaoshan National Natural Reserve. We also quantified microhabitat variation by quantifying canopy structure heterogeneity with airborne laser scanning on 20 1-ha subtropical forest plots. We found that species α-diversity was negatively correlated with genetic α-diversity. Canopy structural heterogeneity was positively correlated with species α-diversity but negatively correlated with genetic α-diversity. These contrasting effects contributed to the formation of a negative α-SGDC. Further, we found that canopy structural heterogeneity increases species α-diversity and decreases genetic α-diversity by reducing the population size of target species. Species β-diversity, in contrast, was positively correlated with genetic β-diversity. Differences in canopy structural heterogeneity between plots had non-linear parallel effects on the two levels of β-diversity, while geographic distance had a relatively weak effect on β-SGDC. Our study indicates that canopy structural heterogeneity simultaneously affects plot-level community species diversity and population genetic diversity, and species and genetic turnover across plots, thus driving α- and β-SGDCs. |
| format | Article |
| id | doaj-art-fd268eb8bf114b37aec040d2861b3474 |
| institution | Kabale University |
| issn | 2468-2659 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Plant Diversity |
| spelling | doaj-art-fd268eb8bf114b37aec040d2861b34742025-02-12T05:31:32ZengKeAi Communications Co., Ltd.Plant Diversity2468-26592025-01-01471106114Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forestZhiliang Yao0Xia Pan1Xin Yang2Xiaona Shao3Bin Wang4Yun Deng5Zhiming Zhang6Qiaoming Li7Luxiang Lin8CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, Yunnan, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaCAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, Yunnan, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaCAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, Yunnan, China; School of Ecology and Environment, Hainan University, Haikou 570228, Hainan, ChinaCAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, Yunnan, China; State Forestry and Grassland Administration Key Laboratory of Silviculture in Downstream Areas of the Yellow River, Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Forestry College of Shandong Agricultural University, Tai'an 271018, Shandong, ChinaSchool of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650500, Yunnan, ChinaCAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, Yunnan, ChinaSchool of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650500, Yunnan, ChinaCAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, Yunnan, China; Corresponding author.CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, Yunnan, China; National Forest Ecosystem Research Station at Xishuangbanna, Mengla 666303, Yunnan, China; Corresponding author. CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China.Patterns and drivers of species–genetic diversity correlations (SGDCs) have been broadly examined across taxa and ecosystems and greatly deepen our understanding of how biodiversity is maintained. However, few studies have examined the role of canopy structural heterogeneity, which is a defining feature of forests, in shaping SGDCs. Here, we determine what factors contribute to α- and β-species–genetic diversity correlations (i.e., α- and β-SGDCs) in a Chinese subtropical forest. For this purpose, we used neutral molecular markers to assess genetic variation in almost all adult individuals of the dominant tree species, Lithocarpus xylocarpus, across plots in the Ailaoshan National Natural Reserve. We also quantified microhabitat variation by quantifying canopy structure heterogeneity with airborne laser scanning on 20 1-ha subtropical forest plots. We found that species α-diversity was negatively correlated with genetic α-diversity. Canopy structural heterogeneity was positively correlated with species α-diversity but negatively correlated with genetic α-diversity. These contrasting effects contributed to the formation of a negative α-SGDC. Further, we found that canopy structural heterogeneity increases species α-diversity and decreases genetic α-diversity by reducing the population size of target species. Species β-diversity, in contrast, was positively correlated with genetic β-diversity. Differences in canopy structural heterogeneity between plots had non-linear parallel effects on the two levels of β-diversity, while geographic distance had a relatively weak effect on β-SGDC. Our study indicates that canopy structural heterogeneity simultaneously affects plot-level community species diversity and population genetic diversity, and species and genetic turnover across plots, thus driving α- and β-SGDCs.http://www.sciencedirect.com/science/article/pii/S2468265924001495Dominant speciesForest structureLiDARLithocarpus xylocarpusSpecies–genetic diversity correlationSubtropical evergreen broad-leaved forest |
| spellingShingle | Zhiliang Yao Xia Pan Xin Yang Xiaona Shao Bin Wang Yun Deng Zhiming Zhang Qiaoming Li Luxiang Lin Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forest Plant Diversity Dominant species Forest structure LiDAR Lithocarpus xylocarpus Species–genetic diversity correlation Subtropical evergreen broad-leaved forest |
| title | Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forest |
| title_full | Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forest |
| title_fullStr | Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forest |
| title_full_unstemmed | Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forest |
| title_short | Canopy structural heterogeneity drives α and β species–genetic diversity correlations in a Chinese subtropical forest |
| title_sort | canopy structural heterogeneity drives α and β species genetic diversity correlations in a chinese subtropical forest |
| topic | Dominant species Forest structure LiDAR Lithocarpus xylocarpus Species–genetic diversity correlation Subtropical evergreen broad-leaved forest |
| url | http://www.sciencedirect.com/science/article/pii/S2468265924001495 |
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