Data for: Using spatial patterns of seeds and saplings to assess the prevalence of heterospecific replacements among cloud forest canopy tree species

Questions: To gain insights into the role of species-by-species replacements in cloud forest community structuring, we asked: (1) What are the effects of the spatial distribution of standing individuals on the seed rain, soil seed bank, and sapling density and survival in this cloud forest? and (2) What is the prevalence of conspecific vs. heterospecific replacements in the regeneration of this forest? Location: Santo Tomás Teipan, Oaxaca State, southern Mexico. Methods: In a 1-ha cloud forest plot we assessed seed rain, seed bank, and sapling density and survival of four canopy tree species (Chiranthodendron pentadactylon, Cornus disciflora, Quercus laurina, Oreopanax xalapensis). All standing individuals of these and other tree species (dbh ≥ 2.5 cm) were mapped. We used neighbourhood models to examine the spatial patterns of the three life cycle stages relative to the spatial distribution of adults. The neighbourhood effect was assessed through the Neighbourhood Index, which in...研究问题：为探究物种逐次替代在云雾林群落构建中的作用，本研究提出如下两个问题：（1）立木个体的空间分布对该云雾林的种子雨、土壤种子库、幼树密度与存活率具有何种影响？（2）该森林更新过程中，同种替代与异种替代的发生频率分别为多少？研究地点：墨西哥南部瓦哈卡州圣托马斯泰潘（Santo Tomás Teipan）。研究方法：本研究在一块1公顷的云雾林样地中，对4种冠层树种（Chiranthodendron pentadactylon、Cornus disciflora、Quercus laurina、Oreopanax xalapensis）的种子雨、土壤种子库、幼树密度与存活率开展了调查。同时对上述树种及其他胸径（dbh）≥2.5厘米的树木个体进行了定位制图。本研究采用邻域模型，基于成年个体的空间分布，分析三个生活史阶段的空间格局；并通过邻域指数（Neighbourhood Index）对邻域效应进行评估，其……