Data from: Late Glacial and Holocene records of tree-killing conifer bark beetles in Europe and North America: Implications for forest disturbance dynamics

Outbreaks of conifer bark beetles in Europe and North America have increased in scale and severity in recent decades. This study identifies existing fossil records containing bark beetle remains from the end of the Last Glacial Maximum (~14,000 cal. yr BP) to present day using the online databases Neotoma and BugsCEP and literature searches, and compares these data with modern distribution data of selected tree-killing species. Modern-day observational data from the Global Biodiversity Information Facility (GBIF) database was used to map recorded distributions from AD 1750 to present day. A total of 53 fossil sites containing bark beetle remains, from both geological and archeological sites, were found during our searches. Fossil sites were fewer in Europe (n = 21) than North America (n = 32). In Europe, 29% of the samples in which remains were found were younger than 1000 cal. yr BP, while in North America, remains were mainly identified from late Glacial (~14,000–11,500 cal. yr BP) sites. In total, the fossil records contained only 8 of 20 species we consider important tree-killing bark beetles in Europe and North America based on their impacts during the last 100 years. In Europe, Ips sexdentatus was absent from the fossil record. In North America, Dendroctonus adjunctus, Dendroctonus frontalis, Dendroctonus jeffreyi, Dendroctonus pseudotsugae, Dryocoetes confusus, Ips calligraphus, Ips confusus, Ips grandicollis, Ips lecontei, Ips paraconfusus, and Scolytus ventralis were absent. Overall, preserved remains of tree-killing bark beetles are rare in the fossil record. However, by retrieving bulk material from new and existing sites and combining data from identified bark beetle remains with pollen, charcoal, tree rings, and geochemistry, the occurrence and dominance of bark beetles, their outbreaks, and other disturbance events can be reconstructed. Resources in this dataset:Resource Title: Late Glacial and Holocene records of tree-killing conifer bark beetles in Europe and North America: Implications for forest disturbance dynamics . File Name: Web Page, url: https://journals.sagepub.com/doi/10.1177/0959683620902214 Data links included in the paper, as well as in Related Content section of this metadata record.
Appendix_A_Sites
Appendix_B_Species_and_their_host_trees
Appendix_C_All_data
Appendix_D_References

近年来，欧洲和北美地区针叶树皮甲虫的爆发规模和严重程度不断加剧。本研究通过利用Neotoma和BugsCEP在线数据库以及文献检索，确定了从末次冰盛期（约14,000年BP）至今的包含树皮甲虫遗骸的化石记录，并将这些数据与选定树杀手物种的现代分布数据进行了比较。通过全球生物多样性信息设施（GBIF）数据库中的现代观测数据，绘制了自公元1750年至今的记录分布图。在搜索过程中，共发现包含树皮甲虫遗骸的化石地点共计53处，其中地质和考古遗址均有涉及。在欧洲，化石地点的数量（n = 21）少于北美（n = 32）。在欧洲，29%的发现遗骸的样本年龄小于1000年BP，而在北美，遗骸主要来自晚冰期（约14,000–11,500年BP）的遗址。总体而言，化石记录中仅包含了我们根据其过去100年的影响所认为的欧洲和北美20种重要树杀手甲虫中的8种。在欧洲，Ips sexdentatus在化石记录中未曾出现。在北美，Dendroctonus adjunctus、Dendroctonus frontalis、Dendroctonus jeffreyi、Dendroctonus pseudotsugae、Dryocoetes confusus、Ips calligraphus、Ips confusus、Ips grandicollis、Ips lecontei、Ips paraconfusus和Scolytus ventralis均未在化石记录中出现。总体来看，树杀手甲虫的保存遗骸在化石记录中较为罕见。然而，通过从新的和现有地点提取大量材料，并将已鉴定的树皮甲虫遗骸数据与花粉、木炭、树木年轮和地球化学数据相结合，可以重建甲虫的出现与优势、其爆发及其他干扰事件。本数据集包含的资源包括：

资源标题：欧洲和北美末次冰期至全新世针叶树杀手甲虫的记录：对森林干扰动态的启示
文件名：网页，url：https://journals.sagepub.com/doi/10.1177/0959683620902214
数据链接包含在论文中，以及在本元数据记录的“相关内容”部分。
附录_A_地点
附录_B_物种及其宿主植物
附录_C_所有数据
附录_D_参考文献