Spatial and temporal patterns of bark beetle and defoliator outbreaks, and their interactions, in the Pacific Northwest
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The dynamics of many forest insects are changing in response to climate warming; however, patterns are not always consistent among or within taxa. Changes in outbreak dynamics for individual species have received much recent attention, but the potential for interactions among species has received less. We used historical aerial survey data (1960-2019) from conifer-dominated forests of Oregon, Washington, and British Columbia to quantify spatial dynamics of bark beetles, defoliators, and their interactions across local and regional scales, and to measure how these dynamics have changed through time. The historical aerial survey data are archived by the British Columbia Ministry of Forests & Canadian Forest Service, and the USDA Forest Service, as cited in the paper; these data contain a record of aerially detected forest biotic disturbance agents (e.g., insects and plant pathogens) that date to the 1940s. From this large dataset, we subset those biotic disturbance agents specific to ..., , # Data from: Spatial and temporal patterns of bark beetle and defoliator outbreaks, and their interactions, in the Pacific Northwest Dataset DOI: [10.5061/dryad.crjdfn3k8](https://doi.org/10.5061/dryad.crjdfn3k8) ## Description of the data and file structure **Dataset used in Pane et al.,** ***Ecological Applications*** ### Files and variables #### File: PaneEcolAppl.txt **Description:**Â Raw data are contained in **PaneEcolAppl.txt.** PaneEcolAppl.txt is space-delimited with 2034477 rows and 7 columns. Column headers are defined as: ##### Variables * **FID**: Unique number associated with each grid cell. * **POINT_X**: X coordinate corresponding to the center point of each grid cell (NAD83 Lambert Conformal Conic (GRS80); meters). * **POINT_Y**: Y coordinate corresponding to the center point of each grid cell (NAD83 Lambert Conformal Conic (GRS80); meters). * **DYEAR**: Year that the disturbance was recorded in the surveys. * **BYEAR**: Only used for bark beetles; there is gener..., ,
许多森林昆虫的种群动态正随着气候变暖发生改变，但类群间乃至类群内部的动态格局并不完全一致。当前学界对单个物种的暴发动态变化已有较多关注，但对物种间潜在的互作效应研究仍相对较少。本研究使用俄勒冈州、华盛顿州以及不列颠哥伦比亚省针叶林主导区域的历史航空调查数据（1960-2019年），量化了小蠹虫（bark beetles）、食叶昆虫（defoliators）及其种间互作在局域和区域尺度上的空间动态，并分析了这些动态随时间的变化趋势。本研究使用的历史航空调查数据由不列颠哥伦比亚省林业部与加拿大林业服务局以及美国农业部（USDA）林业服务局归档，如论文中所引；该数据集可追溯至20世纪40年代，记录了航空探测到的森林生物干扰因子（biotic disturbance agents，如昆虫与植物病原物（plant pathogens））。本研究从该大型数据集中筛选出针对…… # 数据来源：太平洋西北地区小蠹虫与食叶昆虫暴发的时空格局及其种间互作 数据集DOI：[10.5061/dryad.crjdfn3k8](https://doi.org/10.5061/dryad.crjdfn3k8) ## 数据与文件结构说明 **本数据集用于Pane等人的研究，发表于***《Ecological Applications》*** ### 文件与变量 #### 文件：PaneEcolAppl.txt **数据说明：** 原始数据存储于**PaneEcolAppl.txt**中。该文件以空格为分隔符，包含2034477行与7列数据，列标题定义如下： ##### 变量说明 * **FID**：每个网格单元对应的唯一编号。 * **POINT_X**：每个网格单元中心点的X坐标（NAD83兰勃特等角圆锥投影（GRS80）；单位：米）。 * **POINT_Y**：每个网格单元中心点的Y坐标（NAD83兰勃特等角圆锥投影（GRS80）；单位：米）。 * **DYEAR**：调查中记录干扰事件的年份。 * **BYEAR**：仅用于小蠹虫相关分析；原文内容未完整收尾
