CBP01 Variable distance line-transect sampling of bird population numbers in different habitats on Konza Prairie (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/339/2,
which was derived from the Level 0 data package found here:
https://pasta.lternet.edu/package/metadata/eml/knb-lter-knz/26/11. The abstract below was extracted from the Level 0 data
package and is included for context: Records of bird species based on line transect sampling, giving perpendicular distance of sighting from the transect line on 16 separate transects. Bird surveys were conducted 2-4 times per year in January, April, June, and October for a 29-year period from 1981 to 2009. Transects were designed to determine bird communities and population numbers associated with tallgrass prairie habitats with different experimental treatments (fire frequency, grazed by bison vs. ungrazed), riparian habitats on forest edge, and gallery forests dominated by oak woodland.

本数据包采用达尔文核心归档（Darwin Core Archive, DwC-A，事件核心）格式。有关达尔文核心标准的详细说明，请参阅：https://www.tdwg.org/standards/dwc/。本二级数据包源自下述一级数据包：https://pasta.lternet.edu/package/metadata/eml/edi/339/2，而该一级数据包又源自下述零级数据包：https://pasta.lternet.edu/package/metadata/eml/knb-lter-knz/26/11。下述摘要是从该零级数据包中提取，以供参考：本数据集基于样线抽样法记录鸟类物种信息，记录了16条独立样线上鸟类观测点与样线的垂直距离。1981年至2009年的29年间，研究人员于每年1月、4月、6月和10月开展2至4次鸟类调查。样线设置的目的是调查不同实验处理（火烧频率、野牛放牧与未放牧）下的高草草原栖息地、林缘河岸栖息地以及以栎类林为主的长廊林的鸟类群落组成与种群数量。