Co-Mast: Harmonized seed production data for woody plants across U.S. long term research sites

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 count..., Data on plant reproduction were either downloaded directly from the Environmental Data Initiative Data Portal or recieved from a scientist affiliated with a Long-Term Ecological Research (LTER) site. Data on species attributes were compiled from various sources, referenced in the file called \"attribute-citations.csv\". Our aim was to create a dataset that harmonizes different sampling methods used to estimate plant reproduction, enabling cross-species comparisons of reproduction across multiple species at sites and incorporating attributes of species such as reproductive cycle length, leaf longevity, and mode of dispersal. The data were filtered as described in the metadata to eliminate dubious seed production time series, including data from rare species, species whose identification was questionable, and seeds identified only to genus rather than species., , # Data from: Co-Mast: Harmonized seed production data for woody plants across U.S. long term research sites

[https://doi.org/10.5061/dryad.69p8cz98q](https://doi.org/10.5061/dryad.69p8cz98q)

Here we provide a dataset aggregating plant reproduction data on 141 species from 1957 to 2021 across nine environmentally disparate Long-Term Ecological Research (LTER) or long-term ecological monitoring sites in the United States. Our aim was to create a dataset that harmonizes different sampling methods used to estimate plant reproduction, enabling cross-species comparisons of reproduction across multiple species at sites and incorporating attributes of species such as reproductive cycle length, leaf longevity, and mode of dispersal. The data were filtered as described below to eliminate dubious seed production time series, including data from rare species, species whose identification was questionable, and seeds identified only to genus rather than species. These long-term records provide info...

植物的年际繁殖时间格局呈现多样化特征，从相对稳定的种子产出，到丰年结实（mast seeding）——即种群内植物同步发生且年际间波动极强的种子生产现象。过往研究已对长寿植物的种子生产全球记录进行了汇编，以期深入理解种子生产、森林与动物种群动态，以及全球变化对丰年结实的影响。现有数据集多聚焦于种群尺度的种子生产动态，但难以在大陆尺度下开展不同植物物种间的群落级丰年结实动态研究。我们整合了美国境内涵盖多种生境的9个长期生态研究（Long-Term Ecological Research, LTER）或长期生态监测站点中141种木本植物数十年的繁殖数据。植物繁殖数据的记录时段为1957年至2021年，每年更新，采集方式包括种子陷阱法，或种子/球果计数法……
植物繁殖数据要么直接从环境数据倡议数据门户（Environmental Data Initiative Data Portal）下载，要么由隶属于长期生态研究（LTER）站点的科研人员提供。物种属性数据则从多种来源汇编而来，相关引用信息详见名为"attribute-citations.csv"的文件。本数据集旨在整合各类用于估算植物繁殖的采样方法，从而支持不同站点下多物种间的繁殖情况跨物种对比，并纳入物种的相关属性，如繁殖周期长度、叶片寿命以及传播方式等。数据已按照元数据中的说明进行筛选，以剔除存疑的种子生产时间序列数据，包括珍稀物种、身份存疑物种，以及仅鉴定到属而非物种水平的种子相关数据。

# 数据集来源：Co-Mast：美国长期研究站点木本植物种子生产整合数据集
[https://doi.org/10.5061/dryad.69p8cz98q](https://doi.org/10.5061/dryad.69p8cz98q)

本数据集整合了美国境内9个生境各异的长期生态研究（LTER）或长期生态监测站点中141个物种1957年至2021年的植物繁殖数据。本数据集旨在整合各类用于估算植物繁殖的采样方法，支持不同站点下多物种间的繁殖情况跨物种对比，并纳入物种的繁殖周期长度、叶片寿命及传播方式等属性信息。数据已按照下述说明进行筛选，以剔除存疑的种子生产时间序列数据，包括珍稀物种、身份存疑物种，以及仅鉴定到属而非物种水平的种子相关数据。这些长期记录可为……提供信息。