The Dynamics of a Neotropical Forest: The 1995 Recensus Including Seedling and Small Sapling Populations

新热带森林的动态：1995 年普查，包括幼苗和小树苗种群

• 批准号: 9405933
• 负责人: Stephen Hubbell
• 金额: $ 11万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-10-01 至 1997-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9405933&HistoricalAwards=false
• 关键词: Dynamics; Neotropical; Forest; 1995; Recensus

9405933 Hubbell Previous research has measured the strength of density- and frequency-dependence in regulating individual tree species populations and in maintaining tree species diversity in Barro Colorado Island forests. The results of these analyses were restricted to trees 1 cm in diameter, yet this age class is likely to miss the important interactions that occur in the seedling and sapling layers of the forest. The empirical nature of this study will capitalize on a 50 ha plot of tropical forest that has previously been mapped and censused in 1982, 1985, and 1990. This study will provide the 1995 recensus of the 50 ha plot and begin a long-term analysis of seedling and sapling populations. %%% This study will provide the first comprehensive analysis of density- and frequency-dependence in seedling and sapling populations of a tropical forest. The detailed analyses of the dynamics of seedlings and saplings of tropical tree species will provide valuable empirical data on the mechanisms that maintain tree species richness in tropical forest ecosystems.

小行星9405933 以前的研究已经测量了强度的密度和频率的依赖性，在调节个别树种种群和保持树种多样性在巴罗科罗拉多岛森林。这些分析的结果仅限于直径为1厘米的树木，但这个年龄段很可能错过发生在森林的幼苗和幼树层的重要相互作用。这项研究的经验性质将利用一个50公顷的热带森林，以前曾在1982年，1985年和1990年绘制和普查。本研究将提供1995年50公顷地块的更新资料，并开始对幼苗和树苗种群进行长期分析。 %%% 这项研究将提供第一个全面的分析密度和频率依赖性的幼苗和幼树种群的热带森林。对热带树种幼苗和幼树动态的详细分析将为热带森林生态系统中维持树种丰富度的机制提供有价值的经验数据。