Seedling recruitment patterns in a tropical dry forest in Ghana
Seedling recruitment patterns in a tropical dry forest in Ghana
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加纳热带干燥森林的幼苗补充模式
DOI：
10.2307/3235763
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发表时间：
1992
影响因子：
2.8
通讯作者：
Ming
中科院分区：
文献类型：
--
作者：
D. Lieberman;Ming
.在加纳Pinkwae（降雨量1100 mm）的干旱森林中进行了幼苗人口统计学和动态研究。树木和藤本植物物种的幼苗在永久性样带标记，识别，测量和recensused每两个月的时间间隔。共1931幼苗53种，在2年期间进行了14次普查。
发芽率和死亡率的季节性分布，死亡率是最高的干旱时期。幼苗密度随季节变化，在相对湿润的时期密度最高。幼苗的多样性较低，与成虫的多样性相当。
在研究期间记录了标记幼苗的存活率。在第一次人口普查中标记的队列，包括1033个混合年龄和物种的个体，在24个月期间损失了61.9%。
许多幼苗被发现是相当大的，在最初的发芽后阶段，与强大的根的发展。根吸盘或epicormic芽的营养繁殖是很常见的网站，虽然大多数的再生是通过种子。
目前的幼苗组合似乎是代表性的，在组成和多样性方面，成年物种组合在Pinkwae。
. Studies of seedling demography and dynamics were carried out in a dry forest at Pinkwae, Ghana (rainfall 1100 mm). Seedlings of tree and liana species in permanent transects were tagged, identified, measured and recensused at bimonthly intervals. A total of 1931 seedlings in 53 species were followed over 14 censuses during a 2-yr period.
Germination and mortality were seasonal in their distribution; mortality was highest in dry periods. Seedling density varied seasonally, with the highest densities in comparatively wet periods. Diversity of seedlings was low, corresponding to that of the adult assemblage.
Survivorship of tagged seedlings was recorded during the study period. The cohort tagged at the first census, comprising 1033 individuals of mixed ages and species, lost 61.9% during a 24-month period.
Many seedlings were found to be rather large at the initial post-germination stage, with strong root development. Vegetative reproduction by root suckers or epicormic shoots was quite common at the site, although the majority of regeneration was by seeds.
The current seedling assemblage appears to be representative, in terms of composition and diversity, of the adult species assemblage at Pinkwae.