Mapping of Poa litorosa and Carex trifida in the Handspike Point area at Macquarie Island 28 March 2003

Current positional data for Poa litorosa and Carex trifida at Handspike Point area (Macquarie Island) were collected using Global Positioning System (GPS) equipment and standard observational techniques. Different techniques were employed, depending on available expertise and equipment. These techniques are described in detail below. Areas were free from overhead obstructions and therefore ideally suited to GPS data collection.This mapping of the distribution of Poa litorosa and Carex trifida on Macquarie Island together with the mapping of Ranunculus crassipes described by the metadata record with ID ASAC_1015_HIGPS03_04 contributed to the paper: Bergstrom, D.M., Turner, P.A.M., Scott, J., Copson, G. and Shaw, J. (2006) Restricted plant species on sub-Antarctic Macquarie and Heard Islands. Polar Biology 29 532-539.

本次针对麦夸里岛（Macquarie Island）手尖角区域的海滨早熟禾（Poa litorosa）与三齿苔草（Carex trifida）所采集的点位数据，采用全球定位系统（Global Positioning System, GPS）设备与标准观测技术获取。研究根据现有专业技术与设备条件，选用了不同的观测手段，下文将对这些方法展开详细说明。该观测区域无高空遮挡物，因此十分适配GPS数据采集工作。本次麦夸里岛海滨早熟禾与三齿苔草的分布测绘工作，结合元数据记录ID为ASAC_1015_HIGPS03_04所记载的厚叶毛茛（Ranunculus crassipes）分布测绘成果，共同支撑了如下学术论文：Bergstrom, D.M.、Turner, P.A.M.、Scott, J.、Copson, G.及Shaw, J.（2006）《亚南极麦夸里岛与赫德岛的受限植物物种》，《极地生物学》（Polar Biology），第29卷，第532-539页。