Ant Assemblages in Hemlock Removal Experiment at Harvard Forest since 2003 (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/193/4, which was derived from the Level 0 data package found here: https://pasta.lternet.edu/package/metadata/eml/knb-lter-hfr/118/32. The abstract below was extracted from the Level 0 data package and is included for context: Ants comprise a considerable amount of animal biomass in terrestrial ecosystems and play major roles in ecological processes ranging from seed dispersal to soil turnover. Invasion by the hemlock woolly adelgid will transform late-successional hemlock forests into earlier successional mixed hardwood - white pine forests or red-maple wetlands. Understanding how ant assemblages vary in different habitat types allows for predictions of how hemlock decline could alter the composition of ant assemblages, with implications for a wide range of ecosystem processes. As part of the Hemlock Removal Experiment at the Simes Tract, we annually monitor ant species composition and abundance.

本数据包采用达尔文核心归档（Darwin Core Archive，简称DwC-A，事件核心型）格式。有关达尔文核心标准（Darwin Core）的更多详情，请参阅：https://www.tdwg.org/standards/dwc/。本二级数据包源自如下链接所指向的一级数据包：https://pasta.lternet.edu/package/metadata/eml/edi/193/4，而该一级数据包又源自如下链接所指向的零级数据包：https://pasta.lternet.edu/package/metadata/eml/knb-lter-hfr/118/32。下述摘编自零级数据包的内容已附于此以提供背景信息：蚂蚁在陆地生态系统中占据相当比例的动物生物量，且在从种子传播到土壤周转的诸多生态过程中发挥关键作用。铁杉球蚜的入侵会将顶极演替阶段的铁杉林转化为早期演替的硬阔-白松混交林或红枫湿地。明确蚂蚁群落在不同生境类型中的变化规律，有助于预测铁杉衰亡如何改变蚂蚁群落组成，进而对诸多生态过程产生连锁影响。作为赛姆斯地块铁杉移除实验的一部分，我们每年对蚂蚁的物种组成与丰度进行监测。