Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservation
Background: Tetracentron sinense Oliv., is an endangered, broad-leaved tree distributed in south-central China. Structural characteristics of the community and dominant tree population niches in T. sinense communities are currently unclear. Questions: (1) What is the status of T. sinense populations...
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| Format: | Article |
| Language: | English |
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Sociedad Botánica de México, A. C.
2018-06-01
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| Series: | Botanical Sciences |
| Subjects: | |
| Online Access: | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/1531 |
| _version_ | 1797983707589509120 |
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| author | Zhongqiong Tian Huaichun Li Wenying Li Xiaohong Gan Xuemei Zhang Zengli Fan |
| author_facet | Zhongqiong Tian Huaichun Li Wenying Li Xiaohong Gan Xuemei Zhang Zengli Fan |
| author_sort | Zhongqiong Tian |
| collection | DOAJ |
| description | Background: Tetracentron sinense Oliv., is an endangered, broad-leaved tree distributed in south-central China. Structural characteristics of the community and dominant tree population niches in T. sinense communities are currently unclear.
Questions: (1) What is the status of T. sinense populations in the community? (2) What are the interspecies interactions between T. sinense populations and its associated species.
Study sites and dates: T. sinense communities in Meigu Dafengding Nature Reserve in southwest China in 2014.
Methods: Six sites of 400 m2 were studied for importance value, special diversity, niche breadth, and overlap of dominant tree populations.
Results: There were 80 species, 67 genera, and 41 families of vascular plants. Sixty-one genera of seed plants in T. sinense communities were classified into 9 types. The North Temperate genus was the largest, accounting for 44.26 %. Species richness, species diversity, and evenness indexes were all low. There were 6 dominant tree populations in T. sinense communities, and the importance values and niche breadths of T. sinense populations were significantly higher than other species. Horizontal niche overlaps between T. sinense and Pterocarya stenoptera, Acer pictum subsp. mono, and Cercidiphyllum japonicum were high; the vertical niche overlaps between T. sinense and these species were all greater than 0.7.
Conclusions: T. sinense communities have North Temperate character, and are immature and unstable communities, still in the early stage of succession. T. sinense is the edificator tree in the communities. A high similarity of habitat demand and strong interspecific competition for light exist between T. sinense and its associated trees.
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| first_indexed | 2024-04-11T06:51:31Z |
| format | Article |
| id | doaj.art-b2f8e445e5c342a68fb12658092080c7 |
| institution | Directory Open Access Journal |
| issn | 2007-4298 2007-4476 |
| language | English |
| last_indexed | 2024-04-11T06:51:31Z |
| publishDate | 2018-06-01 |
| publisher | Sociedad Botánica de México, A. C. |
| record_format | Article |
| series | Botanical Sciences |
| spelling | doaj.art-b2f8e445e5c342a68fb12658092080c72022-12-22T04:39:11ZengSociedad Botánica de México, A. C.Botanical Sciences2007-42982007-44762018-06-0196210.17129/botsci.1531Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservationZhongqiong Tian0Huaichun Li1Wenying Li2Xiaohong Gan3Xuemei Zhang4Zengli Fan5College of Life Science, China West Normal UniversityCollege of Life Science, China West Normal UniversityCollege of Life Science, China West Normal UniversityCollege of Life Science, China West Normal UniversityCollege of Life Science, China West Normal UniversityCollege of Life Science, China West Normal UniversityBackground: Tetracentron sinense Oliv., is an endangered, broad-leaved tree distributed in south-central China. Structural characteristics of the community and dominant tree population niches in T. sinense communities are currently unclear. Questions: (1) What is the status of T. sinense populations in the community? (2) What are the interspecies interactions between T. sinense populations and its associated species. Study sites and dates: T. sinense communities in Meigu Dafengding Nature Reserve in southwest China in 2014. Methods: Six sites of 400 m2 were studied for importance value, special diversity, niche breadth, and overlap of dominant tree populations. Results: There were 80 species, 67 genera, and 41 families of vascular plants. Sixty-one genera of seed plants in T. sinense communities were classified into 9 types. The North Temperate genus was the largest, accounting for 44.26 %. Species richness, species diversity, and evenness indexes were all low. There were 6 dominant tree populations in T. sinense communities, and the importance values and niche breadths of T. sinense populations were significantly higher than other species. Horizontal niche overlaps between T. sinense and Pterocarya stenoptera, Acer pictum subsp. mono, and Cercidiphyllum japonicum were high; the vertical niche overlaps between T. sinense and these species were all greater than 0.7. Conclusions: T. sinense communities have North Temperate character, and are immature and unstable communities, still in the early stage of succession. T. sinense is the edificator tree in the communities. A high similarity of habitat demand and strong interspecific competition for light exist between T. sinense and its associated trees. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/1531Community structureImportant valueNiche breadthNiche overlapTetracentron sinense |
| spellingShingle | Zhongqiong Tian Huaichun Li Wenying Li Xiaohong Gan Xuemei Zhang Zengli Fan Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservation Botanical Sciences Community structure Important value Niche breadth Niche overlap Tetracentron sinense |
| title | Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservation |
| title_full | Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservation |
| title_fullStr | Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservation |
| title_full_unstemmed | Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservation |
| title_short | Structural characteristics and niches of dominant tree populations in <em>Tetracentron sinense</em> communities: implications for conservation |
| title_sort | structural characteristics and niches of dominant tree populations in em tetracentron sinense em communities implications for conservation |
| topic | Community structure Important value Niche breadth Niche overlap Tetracentron sinense |
| url | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/1531 |
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