生物多样性 ›› 2022, Vol. 30 ›› Issue (1): 21229.  DOI: 10.17520/biods.2021229

• 生物编目 • 上一篇    下一篇

浙江乌岩岭国家级自然保护区叶附生苔类及附主植物多样性

戴尊1,#, 陈星1,#, 张建行1, 朱毛洁1, 宋坤2, 邢诗晨1, 涂淑雯1, 邹璐1, 雷祖培3, 李宏庆1,*(), 王健1,*()   

  1. 1.华东师范大学生命科学学院, 上海 200241
    2.华东师范大学生态与环境科学学院, 上海 200241
    3.浙江乌岩岭国家级自然保护区管理局, 浙江泰顺 325500
  • 收稿日期:2021-06-03 接受日期:2021-09-14 出版日期:2022-01-20 发布日期:2022-01-29
  • 通讯作者: 李宏庆,王健
  • 作者简介:* 共同通讯作者. E-mail: hqli@bio.ecnu.edu.cn;jwang@bio.ecnu.edu.cn
    第一联系人:

    # 共同第一作者

  • 基金资助:
    国家自然科学基金(31770371);国家自然科学基金(32070228);生态环保部生物多样性调查;观察与评估项目(2019-2023)

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

Zun Dai1,#, Xing Chen1,#, Jianhang Zhang1, Maojie Zhu1, Kun Song2, Shichen Xing1, Shuwen Tu1, Lu Zou1, Zupei Lei3, Hongqing Li1,*(), Jian Wang1,*()   

  1. 1 School of Life Sciences, East China Normal University, Shanghai 200241
    2 School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241
    3 Zhejiang Wuyanling National Nature Reserve Management Bureau, Taishun, Zhejiang 325500
  • Received:2021-06-03 Accepted:2021-09-14 Online:2022-01-20 Published:2022-01-29
  • Contact: Hongqing Li,Jian Wang
  • About author:First author contact:

    # Co-first authors

摘要:

叶附生苔类植物是一类主要生长在热带雨林和亚热带常绿阔叶林维管植物叶片表面的苔类植物, 具有重要的生态价值, 是苔藓植物中最需要关注和保护的一个类群。但由于其个体细小、分类困难等原因, 此前针对我国叶附生苔类植物的采样可能存在低估其多样性的情况。为了解采样方式可能对叶附生苔类植物多样性的影响, 本研究在乌岩岭国家级自然保护区对叶附生苔开展了系统的采样及比较研究。根据叶附生苔附主植物的叶片特性、分布位置等因素, 对保护区内的叶附生苔类植物及附主植物开展沿海拔梯度的系统调查和取样, 分析了叶附生苔类植物和附主植物的多样性及物种组成情况。结果显示, 该保护区共有叶附生苔类植物5科14属49种, 叶附生苔附主植物57科84属119种。与历史数据相比, 本研究区新增叶附生苔2科5属35种, 其中浙江省新记录苔类4种。叶附生苔物种丰富度表现出随海拔升高呈单峰型分布的模式, 在500-900 m海拔段的种数最多。基于叶片数的物种累积曲线及随机抽样分析表明, 该保护区叶附生苔在不同生境及同一附主植物不同叶片间表现出较大的种类组成差异。鉴于本研究采集方法获得的较高叶附生苔物种多样性, 建议在我国叶附生苔多样性其他分布中心开展类似的研究, 以进一步摸清我国叶附生苔类植物物种多样性。

关键词: 生物多样性保护优先区域, 苔藓植物, 采样方法, 物种多样性

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