Plant species presence-absence data and topography data from barrancos in La Palma, Canary Islands

These data sets contain plant species and topographic information for 2x11m plots located within barrancos on the island of La Palma, Canary Islands. Information on how data were collected and analysed is available in the associated publication: Cutts, V., Katal, N., Löwer, C., Algar, A. C, Steinbauer, M. J, Irl, S. D, et al. (2019). The effect of small-scale topography on patterns of endemism within islands. Frontiers of Biogeography, 11(4). The species data contains presence-absence data per plot. It also denotes if a species is an archipelago endemic (AE), single-island endemic (SIE) or invasive (I). Species that do not have an accurate ID are labelled 'Uknown_#' or labelled with the known genera followed by 'spec'. The plot data contains barranco depth (by four different measures, in metres), height to width ratio and altitude for each plot. GPS points are available for most plots, with the exception of plots in barranco 2 and barranco 3 (GPS points were taken incorrectly during sampling).

本数据集涵盖位于加那利群岛（Canary Islands）的拉帕尔马岛（La Palma）干谷（barranco）内2×11米样地的植物物种与地形信息。有关数据采集与分析方法的详细信息可参阅关联文献：Cutts, V.、Katal, N.、Löwer, C.、Algar, A. C.、Steinbauer, M. J.、Irl, S. D. 等（2019）发表于《生物地理学前沿（Frontiers of Biogeography）》第11卷第4期的论文《小型尺度地形对岛屿内特有物种分布格局的影响》。物种数据包含每个样地的物种存在-缺失数据（presence-absence data），同时标注了物种是否为群岛特有种（archipelago endemic，简称AE）、单岛特有种（single-island endemic，简称SIE）或入侵种（invasive，简称I）。无法精准鉴定的物种将被标注为‘Unknown_#’，或以其已知属名后加‘spec’的形式标注。样地数据包含每个样地的干谷深度（采用4种不同测量方法，单位为米）、高宽比以及海拔高度。大多数样地均配有GPS点位信息，但2号干谷与3号干谷内的样地除外——其GPS点位在采样过程中采集失误。