您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Determining the Unsuitability of Exotic Cordgrass (Spartina alterniflora) for Avifauna in a Mangrove Wetland Ecosystem

文献类型： 外文期刊

作者： Chen, Quan 1 ; Lin, Guangxuan 3 ; Ma, Keming 1 ; Chen, Pimao 2 ;

作者机构： 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China

2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangdong Prov Key Lab Fishery Ecol & Environm, Key Lab Marine Ranch Technol, Guangzhou 510300, Guangdong, Peoples R China

3.Zhanjiang Mangrove Natl Nat Reserve, Zhanjiang 524033, Peoples R China

4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

关键词： Biological invasion; comparative experiments; vegetation characteristics; macrobenthic fauna; habitat transformation

期刊名称：JOURNAL OF COASTAL RESEARCH （ 影响因子：0.854； 五年影响因子：1.072 ）

ISSN： 0749-0208

年卷期： 2019 年 35 卷 1 期

页码：

收录情况： SCI

摘要： Avifauna are essential for maintaining the structure and functioning of mangrove ecosystems, which are particularly sensitive to habitat transformation. Although exotic cordgrass, Spartina alterniflora, is an increasing threat to mangrove ecosystems (including the associated unvegetated shoals) of China, its effects on the avifauna in such ecosystems are poorly understood. In Zhanjiang, China, the avifaunal Shannon-Weiner diversity, Simpson's diversity, Margalef's species richness, Pielou's evenness and density indices were compared in (1) an Avicennia marina monoculture vs. an S. alterniflora-invaded A. marina stand (a mixture of A. marina and S. alterniflora) and (2) an unvegetated shoal vs. an S. alterniflora-invaded shoal that had rapidly become an S. alterniflora monoculture. All avifaunal community parameters except for the Simpson index were significantly lower in the S. alterniflora thorn A. marina mixture than in the A. marina monoculture, and in the S. alterniflora monoculture than in the unvegetated shoal. These results indicate that the presence of S. alterniflora reduces the suitability of the Zhanjiang mangrove ecosystem for avifauna. Among the four habitats, the Shannon-Weiner diversity index, species richness, and density of the avifaunal community were highest in the unvegetated shoal. Further analysis indicated that the differences in the avifaunal community between invaded and noninvaded sites were associated with vegetation characteristics (mainly plant height and density) and macrobenthic faunal metrics (mainly species richness and density). The reduced avifaunal diversity and abundance associated with S. alterniflora invasion probably resulted from the decline in food resources or from the increased difficulty in foraging and roosting. The findings indicate that the conservation of birds in mangrove ecosystems may depend on controlling or eradicating exotic S. alterniflora, maintaining tidal mudflats, and diversifying the habitats in mangrove wetlands.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台