Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze river
Effective conservation of ecosystems requires deep knowledge concerning multiple aspects of biodiversity including alpha and beta components of species richness, taxonomic, and functional diversity, as well as their relationships. The taxonomic and functional α-diversity positively correlated to spe...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018-07-01
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| Series: | Global Ecology and Conservation |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989418301914 |
| _version_ | 1818623775043747840 |
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| author | Bin Kang Xiaoxia Huang Yunzhi Yan Yunrong Yan Hungdu Lin |
| author_facet | Bin Kang Xiaoxia Huang Yunzhi Yan Yunrong Yan Hungdu Lin |
| author_sort | Bin Kang |
| collection | DOAJ |
| description | Effective conservation of ecosystems requires deep knowledge concerning multiple aspects of biodiversity including alpha and beta components of species richness, taxonomic, and functional diversity, as well as their relationships. The taxonomic and functional α-diversity positively correlated to species richness and functional evolution exceeded taxonomic differentiation. We divided the Yangtze whole basin into 56 units, and then the information on fish composition and their distribution in each unit was revised. Results showed that the fish diversity was strongly driven by variation in the species turnover between watersheds with the geological environmental heterogeneity, while the TD and FD variation could be attributed to species nestedness, as taxonomic category or functional trait of species in one unit was a subset of that in other units. The high β-diversity in SR was mostly composed of high turnover, while the high β-diversity of TD and FD resulted from high nestedness. Species functional differentiation was faster than taxonomic differentiation during the process of adoption to environment variation. An integrated index of multifaceted diversity considering the high species richness and important functional role suggested the headwater with abundant endemic species, the middle mainstream necessary to fish migration, and the lakes containing higher diverse species were primarily recommended for conservation. Keywords: Species richness, Taxonomic diversity, Functional diversity, Species turnover, Differentiation, Traits |
| first_indexed | 2024-12-16T18:46:25Z |
| format | Article |
| id | doaj.art-929b196448fc4e1bad252d27f77f4a0a |
| institution | Directory Open Access Journal |
| issn | 2351-9894 |
| language | English |
| last_indexed | 2024-12-16T18:46:25Z |
| publishDate | 2018-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Global Ecology and Conservation |
| spelling | doaj.art-929b196448fc4e1bad252d27f77f4a0a2022-12-21T22:20:49ZengElsevierGlobal Ecology and Conservation2351-98942018-07-0115Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze riverBin Kang0Xiaoxia Huang1Yunzhi Yan2Yunrong Yan3Hungdu Lin4College of Fisheries, Ocean University of China, Qingdao, 266003, China; Corresponding author.Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer Over the Low-latitude Plateau Region, School of Earth Science, Yunnan University, Kunming, 650091, ChinaCollege of Life Sciences, Anhui Normal University, Wuhu, 241002, ChinaCollege of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, ChinaCollege of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, ChinaEffective conservation of ecosystems requires deep knowledge concerning multiple aspects of biodiversity including alpha and beta components of species richness, taxonomic, and functional diversity, as well as their relationships. The taxonomic and functional α-diversity positively correlated to species richness and functional evolution exceeded taxonomic differentiation. We divided the Yangtze whole basin into 56 units, and then the information on fish composition and their distribution in each unit was revised. Results showed that the fish diversity was strongly driven by variation in the species turnover between watersheds with the geological environmental heterogeneity, while the TD and FD variation could be attributed to species nestedness, as taxonomic category or functional trait of species in one unit was a subset of that in other units. The high β-diversity in SR was mostly composed of high turnover, while the high β-diversity of TD and FD resulted from high nestedness. Species functional differentiation was faster than taxonomic differentiation during the process of adoption to environment variation. An integrated index of multifaceted diversity considering the high species richness and important functional role suggested the headwater with abundant endemic species, the middle mainstream necessary to fish migration, and the lakes containing higher diverse species were primarily recommended for conservation. Keywords: Species richness, Taxonomic diversity, Functional diversity, Species turnover, Differentiation, Traitshttp://www.sciencedirect.com/science/article/pii/S2351989418301914 |
| spellingShingle | Bin Kang Xiaoxia Huang Yunzhi Yan Yunrong Yan Hungdu Lin Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze river Global Ecology and Conservation |
| title | Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze river |
| title_full | Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze river |
| title_fullStr | Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze river |
| title_full_unstemmed | Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze river |
| title_short | Continental-scale analysis of taxonomic and functional fish diversity in the Yangtze river |
| title_sort | continental scale analysis of taxonomic and functional fish diversity in the yangtze river |
| url | http://www.sciencedirect.com/science/article/pii/S2351989418301914 |
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