Species diversity of epiphyllous liverworts and host plants in the Wuyanling National Nature Reserve, Zhejiang Province

doi:10.17520/biods.2021229

Abstract

Abstract:

Aims: Epiphyllous liverworts are a group of bryophytes that mainly grow on the leaf surfaces of vascular plants in tropical rainforests and subtropical evergreen broad-leaved forests. These species have important value in the ecosystem and are the group of bryophytes that need the most attention and protection by conservationists. However, due to the physically small size and the difficulty of classifying specimens, previous surveys of epiphyllous liverworts in China may have underestimated their diversity. In order to understand the possible impact of sampling methods on the perceived diversity of epiphyllous liverworts, the present study conducted systematic sampling and comparative analysis on the epiphyllous liverworts in the Wuyanling National Nature Reserve.

Methods: Utilizing the Wuyanling National Nature Reserve as the study area, this study carried out systematic investigations on the diversity of epiphyllous liverworts and their host plants along altitude gradients according to the leaf characteristics and distribution position of host plants. Species richness and composition of epiphyllous liverworts and its host plants were analyzed.

Results: There are 49 species of epiphyllous liverworts obtained from 14 genera in 5 families and 119 species of host plants obtained from 84 genera in 57 families. Compared with historical data, 35 species, 5 genera and 2 families were newly recorded in the area, including 4 new species recorded in Zhejiang Province. A humped relationship is observed between species richness of epiphyllous liverworts and elevation, with a maximum richness between the altitude of 500 m and 900 m. The species accumulation curve and random sampling analysis based on the number of leaves indicated that the epiphyllous liverworts in the reserve demonstrated great differences in species composition in different habitats and different leaves of the same host plant.

Conclusion: In view of the higher species diversity of epiphyllous liverworts obtained by the sampling method in this study, it is recommended to conduct similar studies in other distribution centers of the species in order to better understand the species diversity of epiphyllous liverworts in China.

Key words: biodiversity conservation priority areas, bryophytes, sampling method, species diversity

Zun Dai, Xing Chen, Jianhang Zhang, Maojie Zhu, Kun Song, Shichen Xing, Shuwen Tu, Lu Zou, Zupei Lei, Hongqing Li, Jian Wang. Species diversity of epiphyllous liverworts and host plants in the Wuyanling National Nature Reserve, Zhejiang Province[J]. Biodiv Sci, 2022, 30(1): 21229.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2021229

https://www.biodiversity-science.net/EN/Y2022/V30/I1/21229

Figures/Tables 4

Fig. 1 Map of sampling lines (a) and sites (b) of epiphyllous liverworts in the Wuyanling National Nature Reserve, Zhejiang Province

Fig. 2 Distribution of epiphyllous liverworts diversity along elevational gradients in the Wuyanling National Nature Reserve, Zhejiang Province

Fig. 3 Species accumulation curve of epiphyllous liverworts based on the numbers (a) and the leaves (b) of host plants in the Wuyanling National Nature Reserve, Zhejiang Province

Fig. 4 Relationship between the number of collected leaves from host plants and richness of epiphyllous liverworts in the Wuyanling National Nature Reserve, Zhejiang Province (solid line in the box shows the mid-value)

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