Spatial relationship between seed and seedling abundance and mortality in a deciduous forest of north-eastern North America
Spatial relationship between seed and seedling abundance and mortality in a deciduous forest of north-eastern North America
复制标题
北美东北部落叶林种子和幼苗丰度与死亡率之间的空间关系
DOI：
10.2307/2261066
复制
发表时间：
1992
影响因子：
5.5
通讯作者：
G. Houle
中科院分区：
文献类型：
--
作者：
G. Houle
研究了北美东北部某阔叶林5种树种种子与幼苗丰度的空间格局关系。在这种低多样性的森林中，种子阴影（来自同一树种的不同个体）可能在很大程度上重叠。在此背景下，尚不清楚种子传播能力的选择优势，以避免高捕食和病原体的攻击，以及在亲本树附近的种内竞争。在研究地点，在任何被研究的树种中，种子和幼苗的空间丰度格局之间都没有强烈和一致的关系（…）
The relationship between seed and seedling spatial patterns of abundance was examined for five tree species in a deciduous forest of north-eastern North America. In this low-diversity forest, seed shadows (from different individuals of a given tree species) may overlap to a significant extent. The selective advantages of greater seed dispersal ability in order to avoid high predation and pathogen attack and intraspecific competition at proximity to the parent tree in unclear in this context. On the study site, there were no strong and consistent relationships between seed and seedling spatial patterns of abundance for any of the tree species studied (...)