| 生态位理论及其测度研究进展 |
| |
| 引用本文： | 李契,朱金兆,朱清科.生态位理论及其测度研究进展[J].北京林业大学学报,2003,2(1):100-107. |
| |
| 作者姓名： | 李契 朱金兆 朱清科 |
| |
| 作者单位： | 北京林业大学水土保持学院 |
| |
| 基金项目： | 国家自然科学基金;399970609; |
| |
| 摘 要： | 许多学者都试图给生态位下定义 ,但最具代表性的当推Grinnell、Elton和Hutchinson分别给出的“空间生态位”、“功能生态位”和“多维超体积生态位”定义 ;生态位测度包括生态位宽度、生态位重叠、生态位体积及生态位维数等 ,其中生态位宽度和生态位重叠是描述一个物种的生态位以及物种生态位间关系的重要指标 .该文列举并分析了每一个测度公式的优缺点 ,进而优选出适合森林群落的生态位计测公式 .指出利用性竞争的一个必要条件是生态位重叠 ,但重叠并不一定导致竞争 ,竞争是在资源供应不足且生态位重叠条件下形成的 .
|
| 关 键 词： | 生态位 生态位宽度 生态位重叠 生态位重叠与竞争 |
A review on niche theory and niche metrics |
| |
| Li Jie, Zhu Jinzhao, Zhu Qingke. School of Soil and Water Conservation,Beijing For. Univ.,P.R.China..A review on niche theory and niche metrics[J].Journal of Beijing Forestry University,2003,2(1):100-107. |
| |
| Authors: | Li Jie Zhu Jinzhao Zhu Qingke School of Soil and Water Conservation Beijing For Univ PRChina |
| |
| Institution: | Li Jie, Zhu Jinzhao, Zhu Qingke. School of Soil and Water Conservation,Beijing For. Univ.,100083,P.R.China. |
| |
| Abstract: | The study on niche theory and its applications has become one important part of modern ecology.Although many scholars had attempted to define it, the typical definitions of niche are Grinnell's space niche, Elton's functional niche and Hutchinson's hypervolume niche; Niche metrics include niche breadth, niche overlapping, niche volume and niche dimension, among which niche breadth and niche overlapping are two important indexes that can be used to characterize a species niche and the relationships between species niches. This paper lists the metrics formulae and analyzes the advantages and disadvantages of each formula, and then selects the formulae fitting forests community. The authors hold that niche overlapping is a necessary condition of resource utilizing competition, and the competition is formed not only under resources scaring but also niche overlapping. |
| |
| Keywords: | niche niche breadth niche overlapping niche overlapping and competition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
