Biodiv Sci ›› 2022, Vol. 30 ›› Issue (4): 21231.  DOI: 10.17520/biods.2021231

• Original Papers: Plant Diversity •     Next Articles

Distribution pattern of plant species richness of uninhabited islands in the Bohai Sea area

Lan Xiao1,2, Biao Dong2, Linting Zhang2, Chuanyuan Deng4, Xia Li2, Jianhui Liu3,*(), Duancong Wu4   

  1. 1 Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen, Fujian 361000
    2 Island Research Center, Ministry of Natural Resources, Pingtan, Fujian 350400
    3 Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian 361000
    4 College of Arts College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou 350000
  • Received:2021-06-03 Accepted:2021-12-14 Online:2022-04-20 Published:2022-04-20
  • Contact: Jianhui Liu


Aim: Our purpose is to investigate the distribution pattern and its characteristics of plant species richness in uninhabited isles in the Bohai Sea area.

Methods: We collected quadrat and precipitation data from nine uninhabited isles. Combining species-area relationship and the species-abundance model (logarithmic normal distribution model), we explored the distribution pattern of plant species richness in uninhabited isles.

Results: Our results revealed that: (1) The relative abundance distribution of woody plants on uninhabited isles located in temperate regions displayed the logarithmic normal distribution characteristics. Common species with a larger number of individuals of woody plant communities were less numerous, while rare species with smaller individuals were more common. (2) The number of species on most uninhabited isles was between 60 and 130 in the Bohai Sea, that showed relatively high species richness. (3) Combined with the geographic location analysis of the isles, it was found that the isles with high species richness were largely located in the reserve, suggesting that plant hotspots in the Bohai Sea area were effectively protected.

Conclusion: Both the species abundance distribution model and the species-area relationship model are important tools to reveal the species richness distribution on isles. Our results suggest that the ecological niche theory is more important for maintaining the process of species diversity on the Bohai Sea area.

Key words: Bohai Sea area, logarithmic normal distribution model, uninhabited isle, species richness, species-area relationship