Data for: Latitudinal variation in seasonal cycle mediates population differences in barnacle reproduction phenology

The timing of life history events around reproduction and early development is critical in population dynamics, and it can determine recruitment success, species dispersal, and population connectivity. In ectotherms, as well as in plants and fungi, phenology is mediated by the nonlinear effects of temperature on physiology and development, meaning that spatiotemporal variation in temperature can exert powerful controls on the timing of local reproduction and recruitment. Here, we examine reproduction phenology (fertilization of embryos, duration of embryonic development during brooding, and larval release) of the intertidal acorn barnacle Semibalanus balanoides in 2002-04 and in 2019-24 at up to 8 sites along a steep temperature gradient in the northwest Atlantic Ocean. At each site and year, we assessed how phenology varied with intertidal temperature, estimated with a hybrid atmosphere-ocean data assimilation model. Although within-site reproduction was delayed due to interannual and ..., The data package contains two folders. The first folder data/ contains: (i) weekly barnacle reproductive proportion data, (ii) hourly temperature logger data from Newagen, Maine, 2003, (iii) filtered intertidal temperatures, and (iv) site metadata. The second folder NOAH_IntertidalModel/ contains: (v) North American Regional Reanalysis (NARR) example data for the year 2000, (vi) OSTIA reprocessed SST example data for the year 2000, subset for Northeast US/Canada coast, and (vii) the suggested directory structure for using XTide, along with the header file for the version of libtcd (a prerequisite software for XTide) used in this study. (i) Weekly barnacle reproductive proportions were measured at up to eight sites along a steep temperature gradient in the northwest Atlantic during two historical and five modern years. (ii) We include hourly temperature logger (Onset Corp.) data for Newagen, Maine, collected in 2003 for intertidal and subtidal habitat, as well as logger data for Halifax,..., , # Data for: Latitudinal variation in seasonal cycle mediates population differences in barnacle reproduction phenology [https://doi.org/10.5061/dryad.gxd2547wk](https://doi.org/10.5061/dryad.gxd2547wk) ## Description of the data and file structure #### File: Sbal_phenology_data_Mar2026.zip **Description:**Â **The first folder,** **data/,** contains weekly *Semibalanus balanoides* barnacle reproductive proportion data; 2003 hourly temperature logger data for Newagen, Maine, USA; filtered intertidal temperatures; site metadata; and example data files for NARR and OSTIA data products. Missing values are included either as blank cells or \"NA\". DataLog .csv files contain up to 5 columns: collection date, site name, and % of sampled adults that were not brooding (perc_nonrep), that contained early-stage embryos (perc_early), or that contained late-stage embryos (perc_late). Some files also include a notes column. site_locations.csv file contains site metadata, along with parameters used..., ,繁殖与早期发育相关的生活史事件的时间安排在种群动态中至关重要，它决定了种群补充成功率、物种扩散能力以及种群连通性。对于外温动物（ectotherms）、植物与真菌而言，物候（phenology）由温度对生理与发育的非线性效应调控，这意味着温度的时空变化可对局部繁殖与补充的时间产生极强的调控作用。本研究针对西北大西洋沿岸沿陡峭温度梯度的至多8个观测站点，分析了2002-2004年与2019-2024年间潮间带藤壶纹藤壶（Semibalanus balanoides）的繁殖物候，包括胚胎受精、抱卵期胚胎发育时长以及幼体释放过程。在每个站点与年度，我们依托混合大气-海洋数据同化模型估算的潮间带温度，分析了物候随温度的变化规律。尽管站点内的繁殖活动因年际差异而存在延迟…… 本数据包包含两个文件夹。第一个文件夹`data/`包含：(i) 周度藤壶繁殖占比数据；(ii) 2003年美国缅因州纽阿真（Newagen）的逐小时温度记录仪数据；(iii) 滤波后的潮间带温度数据；(iv) 站点元数据。第二个文件夹`NOAH_IntertidalModel/`包含：(v) 2000年北美区域再分析（North American Regional Reanalysis, NARR）示例数据；(vi) 针对美国东北部/加拿大海岸子集的2000年OSTIA再处理海表温度（Sea Surface Temperature, SST）示例数据；(vii) 本研究使用XTide的推荐目录结构，以及本研究所用版本的libtcd（XTide的依赖软件）的头文件。 (i) 周度藤壶繁殖占比数据采集于西北大西洋沿陡峭温度梯度的至多8个站点，涵盖2个历史年份与5个现代年份。 (ii) 我们提供了2003年采集自美国缅因州纽阿真的潮间带与潮下带栖息地的逐小时温度记录仪（Onset Corp.）数据，以及哈利法克斯的记录仪数据…… # 数据主题：纬度季节周期调控藤壶繁殖物候的种群差异 [https://doi.org/10.5061/dryad.gxd2547wk](https://doi.org/10.5061/dryad.gxd2547wk) ## 数据与文件结构说明 #### 文件：Sbal_phenology_data_Mar2026.zip **描述：** **第一个文件夹`data/`**包含周度纹藤壶繁殖占比数据、2003年美国缅因州纽阿真的逐小时温度记录仪数据、滤波后的潮间带温度数据、站点元数据，以及NARR与OSTIA数据产品的示例文件。缺失值以空白单元格或"NA"表示。 `DataLog.csv`文件至多包含5列：采集日期、站点名称、未抱卵的采样成体占比（perc_nonrep）、携带早期胚胎的成体占比（perc_early）、携带晚期胚胎的成体占比（perc_late）。部分文件额外包含备注列。 `site_locations.csv`文件包含站点元数据以及所用参数……