热带亚热带植物学报2025，Vol.33Issue(4)：428-436,9.DOI:10.11926/jtsb.4902
地形因子对热带森林物种多度影响的分析
Analysis of the Impact of Topographic Factors on Species Abundance in Tropical Forests:A Case Study of a Plot in Panama
黄皇雄 1郑毅2
作者信息
- 1. 湖南省资兴市滁口国有林场,湖南 资兴 423405
- 2. 中国科学院华南植物园,广州 510650
- 折叠
摘要
Abstract
In the ecological niche theory,niche differentiation is considered an important mechanism affecting species coexistence.Niche differentiation predicts that different species in a community will have varying responses to local environmental factors.In this study,the relationship between five important topographic factors and the abundance of the four most abundant groups of different types of species were analyzed by using open-access data from the Barro Colorado Island(BCI)50 hm2 plot in Panama,which were classified depending on their phylogenetic distance,at a scale of 80 m×80 m.To enhance the reliability of data analysis,we proposed a method for correcting edge effects during subplot division.Specifically,an individual near or on the subplot boundaries was proportionally allocated to these subplots based on the projected area of its canopy.We found that the five topographic factors significantly influenced species abundance within the community,and different types of species exhibit varied responses to these factors,consistent with predictions from ecological niche theory.Comparison of traditional quadrat division methods with our results after correction of edge effects revealed a marked improvement in model fitting.关键词
大型样地/谱系距离/生境异质性/生态位分化Key words
Large-scale plot/Phylogenetic distance/Habitat heterogeneity/Ecological niche differentiation引用本文复制引用
黄皇雄,郑毅..地形因子对热带森林物种多度影响的分析[J].热带亚热带植物学报,2025,33(4):428-436,9.
