Plants display a range of temporal patterns of inter‐annual reproduction, from relatively constant seed production to “mast seeding,” the synchronized and highly variable interannual seed production of plants within a population. Previous efforts have compiled global records of seed production in long‐lived plants to gain insight into seed production, forest and animal population dynamics, and the effects of global change on masting. Existing datasets focus on seed production dynamics at the population scale but are limited in their ability to examine community‐level mast seeding dynamics across different plant species at the continental scale. We harmonized decades of plant reproduction data for 141 woody plant species across nine Long‐Term Ecological Research (LTER) or long‐term ecological monitoring sites from a wide range of habitats across the United States. Plant reproduction data are reported annually between 1957 and 2021 and based on either seed traps or seed and/or cone counts on individual trees. A wide range of woody plant species including trees, shrubs, and lianas are represented within sites allowing for direct community‐level comparisons among species. We share code for filtering of data that enables the comparison of plot and individual tree data across sites. For each species, we compiled relevant life history attributes (e.g., seed mass, dispersal syndrome, seed longevity, sexual system) that may serve as important predictors of mast seeding in future analyses. To aid in phylogenetically informed analyses, we also share a phylogeny and phylogenetic distance matrix for all species in the dataset. These data can be used to investigate continent‐scale ecological properties of seed production, including individual and population variability, synchrony within and across species, and how these properties of seed production vary in relation to plant species traits and environmental conditions. In addition, these data can be used to assess how annual variability in seed production is associated with climate conditions and how that varies across populations, species, and regions. The dataset is released under a CC0 1.0 Universal public domain license.

中文翻译：

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联合桅杆：美国长期研究地点的木本植物的统一种子生产数据


植物表现出一系列年际繁殖的时间模式，从相对恒定的种子生产到“桅杆播种”，即种群内植物同步且高度可变的年际种子生产。以前的工作已经汇编了长寿植物种子生产的全球记录，以深入了解种子生产、森林和动物种群动态以及全球变化对桅杆的影响。现有的数据集侧重于种群规模的种子生产动态，但在研究大陆尺度上不同植物物种的群落级桅杆播种动态的能力有限。我们协调了来自美国广泛栖息地的 9 个长期生态研究 （LTER） 或长期生态监测站点的 141 种木本植物物种数十年的植物繁殖数据。植物繁殖数据在 1957 年至 2021 年期间每年报告一次，基于单棵树的种子诱捕器或种子和/或球果计数。遗址内有广泛的木本植物物种，包括乔木、灌木和藤本植物，允许对物种进行直接的群落级比较。我们共享用于筛选数据的代码，从而可以跨站点比较绘图和单个树数据。对于每个物种，我们汇编了相关的生活史属性（例如，种子质量、扩散综合征、种子寿命、性系统），这些属性可能作为未来分析中桅杆播种的重要预测因子。为了帮助进行系统发育信息分析，我们还共享了数据集中所有物种的系统发育和系统发育距离矩阵。 这些数据可用于研究种子生产的大陆尺度生态特性，包括个体和种群的变异性、物种内部和物种之间的同步性，以及种子生产的这些特性如何与植物物种性状和环境条件相关。此外，这些数据可用于评估种子生产的年度变化如何与气候条件相关，以及气候条件在不同种群、物种和地区之间如何变化。该数据集在 CC0 1.0 通用公共领域许可下发布。