Beta diversity and factors that drive land-snail patterns in Jiangxi Province, People’s Republic of China

Yang, Xinghong; Liu, Xiongjun; Xie, Guanglong; Qin, Jiajun; Wu, Xiaoping; Ouyang, Shan

doi:10.1139/cjz-2019-0002

Cited by 3 publications

(3 citation statements)

References 58 publications

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“…As suggested in the previous study [26], the habitat types were divided into 4 types, namely mudflats, vegetation, waterbody, and sands (bare land). Spearman correlation analysis was used to analyze the factors affecting the nesting pattern of waterbirds in Poyang Lake [16,26,36,37]. The WNODF analysis method can analyze not only the whole matrix, species, and research site the whole matrix, but also analyze species and research sites.…”

Section: Discussionmentioning

confidence: 99%

“…If nested components are dominant, the regions with high species richness have high protection levels. Otherwise, it means that the contribution of all studied areas to beta diversity is similar [16]. If the spatial turnover constituent is the main pattern of beta diversity, more protected parts are essential to conserve regional biodiversity.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China

Suliman,

Deng,

et al. 2024

Diversity

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This study was designed to determine the fragmentation of sub-lakes in winter and its effects on wintering waterbirds in Poyang Lake. Poyang Lake becomes fragmented in winter, which forms many seasonal sub-lakes every year, and have different environmental characteristics. These sub-lakes significantly impact winter bird habitats and result in susceptibility to various changes, because birds have different distribution responses. A total of 24 sub-lakes were surveyed from one to five vantage points using point count methods in each sub-lake with binoculars, monocular, and a spotting scope for four consecutive winter seasons. The multi-site dissimilarity Sorensen index measures overlapped between two populations, and the R software “iNEXT” package was used to evaluate the sample coverage test of the study area. We observed 58 wintering waterbird species belonging to 9 orders and 15 families from 2016 to 2020. Spearman correlation analysis showed that the species richness of wintering waterbirds was significantly positively correlated with the sub-lake areas and associated with the richness of habitat type. The WNODF analyses were considerably correlated for sites of waterbirds, mainly with the abundance of forage and conservation of habitat form. The outcomes of this study showed that Maying Lake has the highest local beta diversity, whereas Dacha Lake has the lowest local beta diversity contribution (0.007). This study’s findings demonstrate Poyang Lake’s role in waterbird the habitat suitability of waterbirds, especially for foraging and conservation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China

Suliman,

Deng,

et al. 2024

Diversity

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“…Knowledge on biodiversity plays an important role in the conservation and management of freshwater mussels (Liu et al, ; Zieritz et al, , ). For example, beta diversity is a key concept for understanding the functioning of ecosystems, the conservation of biodiversity, and the management of ecosystems (Bergamin et al, ; Wiersma & Urban, ; Xu et al, ). Although many studies have qualitatively investigated freshwater mussels in the Xin River Basin (Liu, Ouyang, & Wu, ; Tchang & Li, ; Wu, Ouyang, & Hu, ), there has been little quantitative work on freshwater mussel diversity and their conservation status.…”

Section: Introductionmentioning

confidence: 99%

Declining freshwater mussel diversity in the middle and lower reaches of the Xin River Basin: Threat and conservation

Sun

Liu

Wü

et al. 2019

Ecology and Evolution

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Freshwater mussels provide important functions and services for aquatic ecosystems, but populations of many species have been extirpated. Information on biodiversity plays an important role in the conservation and management of freshwater mussels. The Xin River Basin is a biodiversity hotspot for freshwater mussels in China, with more than 43 species known, but populations of which are decreasing. Here, we quantify the diversity of freshwater mussels in the middle and lower reaches of the Xin River Basin and study the correlation of habitat characteristics and freshwater mussel diversity. Compared to the historical period, the number of species, density, and biomass of freshwater mussels decreased 33%, 83%, and 82% in the current period, respectively. Fifty two percent of recorded species were empty shells, and 14 native freshwater mussels were not found in the study area. Four species are currently listed as vulnerable species using IUCN criteria and their global status. The assemblage structure of freshwater mussels exhibits significant spatial differences, and there was a correlation with substrate and physicochemical parameters. The main tributary of the Xin River with higher freshwater mussel diversity should be established as one large protected area because the nestedness component was the main pattern of beta diversity. These results indicated freshwater mussel diversity was declining rapidly, which can help focus conservation effort for freshwater mussel biodiversity.

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Lateral connectivity maintains higher freshwater mussel biodiversity

Liu,

Sousa,

Guo

et al. 2024

Freshwater Biology

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The loss of lateral hydrological connectivity (LLHC) in freshwater ecosystems is increasingly threatening biodiversity; however, studies reporting this situation are limited, especially those assessing multi‐measure biodiversity features at large spatial scales. Here, and using one the most threatened taxonomic groups in freshwater ecosystems, we examined the possible influence of LLHC on the species diversity, density, and biomass of mussel assemblages and the genetic diversity and structure of Nodularia douglasiae (a common and widespread native species) in the Yangtze River floodplain. Results showed that the species diversity of freshwater mussels (α and β diversity) significantly differed between the connected and the disconnected areas, with higher α diversity and lower β diversity in the connected areas. At the same time, relative abundance, density, biomass, and genetic diversity of freshwater mussels were higher in the connected areas. High genetic differentiation and low gene flow were found among the 18 analysed N. douglasiae populations, indicating that LLHC is affecting genetic structure of this particular freshwater mussel species. Overall, results indicated that river–lake connectivity is affecting freshwater mussel biodiversity. In addition, this study highlights that multi‐measure biodiversity features provide distinct information about biodiversity dynamics, and are essential to evaluate the effects of floodplain disconnection. We advocate that an integrative approach to floodplain management embracing species and genetic diversity is needed for effective biodiversity conservation in large river ecosystems.

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Beta diversity and factors that drive land-snail patterns in Jiangxi Province, People’s Republic of China

Cited by 3 publications

References 58 publications

Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China

Evaluation of Lake Fragmentation and Its Effect on Wintering Waterbirds in Poyang Lake, China

Declining freshwater mussel diversity in the middle and lower reaches of the Xin River Basin: Threat and conservation

Lateral connectivity maintains higher freshwater mussel biodiversity

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