Long-term trends in abundance of Lepidoptera larvae at Hubbard Brook Experimental Forest and three additional northern hardwood forest sites, 1986-2018 (Reformatted to a Darwin Core Archive)

This data package is formatted as a Darwin Core Archive (DwC-A, event core). For more information on Darwin Core see https://www.tdwg.org/standards/dwc/. This Level 2 data package was derived from the Level 1 data package found here: https://pasta.lternet.edu/package/metadata/eml/edi/349/2, which was derived from the Level 0 data package found here: https://pasta.lternet.edu/package/metadata/eml/knb-lter-hbr/82/8. The abstract below was extracted from the Level 0 data package and is included for context: Numbers and lengths of Lepidoptera larvae (caterpillars, all species) were censused on shrub level foliage at biweekly intervals from late May/early June through late July/early August each year. Measurements were conducted on the Main bird plot in the Hubbard Brook Experimental Forest and on three additional plots within the White Mountain National Forest from 1986-1997.. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.

本数据包采用达尔文核心归档（Darwin Core Archive，缩写DwC-A，事件核心）格式。如需了解达尔文核心（Darwin Core）的更多信息，请访问：https://www.tdwg.org/standards/dwc/。本二级数据包源自如下链接对应的一级数据包：https://pasta.lternet.edu/package/metadata/eml/edi/349/2；而该一级数据包又源自如下链接对应的零级数据包：https://pasta.lternet.edu/package/metadata/eml/knb-lter-hbr/82/8。以下摘要提取自该零级数据包，用于提供背景信息：每年5月下旬/6月初至7月下旬/8月初期间，以两周一次的频率对灌木层叶片上的鳞翅目（Lepidoptera）幼虫（即各类毛虫）的数量及体长进行普查。1986年至1997年期间，调查在哈伯德布鲁克实验林（Hubbard Brook Experimental Forest）的主鸟类样地以及怀特山国家森林公园内的另外3个样地开展。本数据集作为哈伯德布鲁克生态系统研究（Hubbard Brook Ecosystem Study，缩写HBES）的一部分采集所得。该研究项目是哈伯德布鲁克实验林的合作研究计划，该实验林由美国农业部林务局北方研究站（USDA Forest Service, Northern Research Station）运营维护。