Bird Survey Data, Warra Tall Eucalypt SuperSite, Silvicultural Systems Trial External Control, 2011

The dataset contains records of bird species encountered during point-count surveys done in spring-summer 2011 along “Bird Track” within the Warra Long-Term Ecological Research site (www.warra.com). The 2011 Bird Track is the eighth of annual surveys done along the Bird Track route. The Bird Track survey route is situated in Eucalyptus obliqua primary (unlogged) forest. It serves as the External Control for the Warra Silvicultural Systems Trial which compares clearfell harvesting with its alternatives in tall, wet Eucalyptus obliqua forest using a before-after-control-impact (BACI) design. Lefort and Grove (2009) document the results for birds in that study for the first three years after harvesting. Reference Lefort, P & Grove, S 2009, Early responses of birds to clearfelling and its alternatives in lowland wet eucalypt forest in Tasmania, Australia', Forest Ecology and Management, vol. 258, pp. 460–471.

本数据集收录了2011年春夏两季，在沃拉长期生态研究站点（Warra Long-Term Ecological Research site，网址：www.warra.com）内的鸟类步道（Bird Track）沿线开展的鸟类点计数调查所获取的物种记录。2011年的鸟类步道调查是该步道沿线年度监测序列的第八次调查。该鸟类步道的调查路线布设于斜叶桉（Eucalyptus obliqua）原生（未采伐）林分中，其作为沃拉营林系统试验（Warra Silvicultural Systems Trial）的外部对照样地，该试验采用前-后-对照-影响（BACI）实验设计，针对澳大利亚塔斯马尼亚地区的高大湿润斜叶桉林，对比了皆伐采伐及其替代营林方案的营林效果。勒福特（Lefort）与格罗夫（Grove）在2009年的研究中，记录了该试验采伐后前三年的鸟类群落响应结果。参考文献：Lefort, P & Grove, S 2009, 《澳大利亚塔斯马尼亚低地湿润桉树林中鸟类对皆伐及其替代方案的早期响应》，载于《森林生态学与管理（Forest Ecology and Management）》，第258卷，第460–471页。