Palm frond damage from herbivory in Biodiversity and Ecosystem Function in Tropical Agriculture (BEFTA) plots, Kandista and Ujun Tanjung estates, Indonesia

Data comprise counts of damage to palm fronds in mature oil palm (2013-2015), and mature and replanted oil palm (2016-2017) plots as part of a large-scale ecological experiment programme (the Biodiversity and Ecosystem Function in Tropical Agriculture project, established in 2013). Herbivory was measured 17 times in total (every 3-4 months) between April 2013 and August 2017. Eighteen plots were examined across three estates - plots in Ujung Tanjung and Kandista estates were planted in 1987 to 1992 and are mature or over-mature oil palm, while Libo plots (2016-2017 data only) were replanted in 2014. Plots were organised in triplets; in Ujung Tanjung and Kandista, for each triplet one plot was assigned to each of three vegetation treatments: Reduced vegetation cover, normal vegetation management and enhanced vegetation cover. The data contain damage estimated in three ways: by eye for the whole crown, by eye for the 17th frond, and by image processing for 20 leaflets of the 17th frond. Full details about this dataset can be found at https://doi.org/10.5285/c2fbd22c-1ce9-4435-b4b0-e333addef346

本数据集涵盖成熟油棕（2013-2015年）及其成熟及重新种植的油棕（2016-2017年）林分中棕榈叶受损情况的计数，作为一项大规模生态实验项目（热带农业生物多样性与生态系统功能项目，始建于2013年）的一部分。在2013年4月至2017年8月期间，共计进行了17次食草动物损害的测量（每3-4个月一次）。项目考察了三个种植园中的18个样地——乌宗丹绒和卡迪斯塔种植园的样地在1987年至1992年间种植，属于成熟或过熟油棕，而利博样地（仅2016-2017年数据）于2014年重新种植。样地以三联组的形式组织；在乌宗丹绒和卡迪斯塔，每个三联组中，将一个样地分配给三种植被处理方式：降低植被覆盖率、常规植被管理和增强植被覆盖率。数据中包含了三种方式估算的损害：通过肉眼对整个冠层的观察、通过肉眼对第17片叶子的观察，以及通过图像处理对第17片叶子上的20片叶子的观察。关于此数据集的详细信息可在以下链接找到：https://doi.org/10.5285/c2fbd22c-1ce9-4435-b4b0-e333addef346