Dataset for: Variations in the reproductive cycle of Bornean montane tree species along elevational gradients on ultrabasic and non-ultrabasic soils

Although lowland tree species in the ever-wet regions of Southeast Asia are characterised by the supra-annual cycle of reproduction, the reproductive phenology of montane tree species remains poorly understood. In this study, we investigated the reproductive phenology of montane tree species using litter samples that were collected every two weeks from six rainforest sites, consisting of three elevations (1700, 2700, and 3100 m), on Mount Kinabalu, Borneo. At each elevation, one site was on infertile ultrabasic soil and one was on relatively fertile non-ultrabasic soil. We used a composite sample from 10 or 20 litter traps per site and sorted it by species. Therefore, the obtained data captured reproductive phenology in the population of each species rather than in an individual tree. Ten-year time series of flower and fruit litterfall were obtained for 30 and 39 tree species, respectively. Fourier analysis was used to identify the dominant cycle of each time series. The most abundant c...尽管东南亚常绿湿润区域的低地树种以超年度繁殖周期为典型特征，但山地树种的繁殖物候仍未得到充分解析。本研究以婆罗洲（Borneo）基纳巴卢山（Mount Kinabalu）的六个雨林样地为研究对象，设置了1700米、2700米与3100米三个海拔梯度，每个海拔梯度分别布设一块位于贫瘠超基性土壤（ultrabasic soil）的样地，以及一块相对肥沃的非超基性土壤样地。研究人员每两周采集一次枯落物样本，每个样地采用由10或20个枯落物收集器（litter traps）组成的混合样本，并按物种对样本进行分类鉴定。因此，所获取的数据反映的是各物种种群的繁殖物候，而非单株树木的繁殖物候。本研究最终获得了30个树种的花枯落物、39个树种的果枯落物的十年时间序列数据。采用傅里叶分析（Fourier analysis）识别各时间序列的主导周期。研究中最为常见的……