The Role of Dispersal and Colonization in Determining Understory Species Distributions in Northeastern Forests

扩散和定植在确定东北部森林林下物种分布中的作用

• 批准号: 8710002
• 负责人: Susan Beatty
• 金额: $ 7.67万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1990-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8710002&HistoricalAwards=false
• 关键词: Role; Dispersal; Colonization; Determining; Understory

Professor Beatty will make a series of measurements of upland deciduous forest floor species composition resulting from seed fall, overland movement of seeds, and other dispersion mechanisms. The measurements will be made in a variety of forest environments including old fields, floodplain forests, successional forests, and conifer forests. Local relief will also be considered. The project is designed to determine whether seed dispersal is the controlling factor in species colonization or whether environmental conditions are more important. The project will yield a deeper understanding of the determinants of vegetational change and succession, and contribute thereby to basic and applied biogeography. The findings will also contribute to our understanding of successional processes of a spatial nature among other phenomena at larger scales of analysis.

贝蒂教授将对由种子掉落、种子在陆地上的移动和其他传播机制产生的高地落叶林地面物种组成进行一系列测量。 测量将在各种森林环境中进行，包括旧田、洪泛区森林、演替森林和针叶林。 当地救济也将被考虑。 该项目旨在确定种子传播是否是物种定殖的控制因素，或者环境条件是否更重要。 该项目将更深入地了解植被变化和演替的决定因素，从而为基础和应用生物地理学做出贡献。 这些发现还将有助于我们在更大范围的分析中理解空间性质的连续过程以及其他现象。