Nanangroe Plantation Plot Network: Bird Point Count Data, Southwest Slopes, NSW, Australia, 2013

The Nanangroe Plantation Plot Network Bird Point Count Data contains counts of all birds seen and heard over five minute periods at each of the 0 m, 100 m and 200 m posts along a permanent 200m transect at each site. Dawn bird counts are conducted every 1-2 years using repeated point interval counts. Repeated point counts by two different observers on two different days are undertaken. The distance that each bird was seen/heard at is recorded along with bird abundance and any anecdotal comments (e.g. breeding behaviour). Bird species presence/absence or detection rates within 50 m of the observer is commonly used for analysis. The principle objective of the Nanangroe study is to directly quantify changes in woodland vertebrate assemblages and their relationships with habitat variables when the surrounding landscape matrix is converted from a semi-cleared grazing landscape to a landscape dominated by an exotic softwood plantation (Lindenmayer, DB, Cunningham, RB, MacGregor, C, Tribolet, C & Donnelly, CF 2001, ‘A prospective longitudinal study of landscape matrix effects on fauna in woodland remnants: experimental design and baseline data’, Biological Conservation, vol 101 no 2, p. 160). The study area is located in the Southwest slopes of NSW west of Lake Burrinjuck and includes four exotic Pine Plantations (Nanangroe, Cotway, East Bungongo and Bungongo), as well as private properties adjacent those plantations. Repeated sampling of the vegetation structure and cover and selected vertebrate groups on all sites from 1998 has created a long term dataset. A synopsis of related data packages which have been collected as part of the Nanangroe Plantation Forest Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/nanangroe-plantation.

楠安格罗（Nanangroe）人工林样地网络鸟类点位计数数据集记录了各调查样地沿200米固定样线布设的0米、100米、200米三个观测桩处，为期5分钟的所有目击及鸣唱鸟类的计数数据。本研究采用重复点位间隔计数法开展黎明时段鸟类调查，调查周期为每1-2年一次，由两名不同观测者于两个不同日期分别开展重复点位计数。调查中会记录每只鸟类被目击或鸣唱时的距离、鸟类多度，以及相关附记性记录（如繁殖行为等）。分析中通常会以观测者50米范围内的鸟类物种存在/缺失情况或检出率作为分析依据。

楠安格罗研究的核心目标是直接量化当周边景观基质从半清理放牧景观转变为以外来软质人工林为主的景观时，林地脊椎动物群落的变化及其与生境变量之间的关联（Lindenmayer, DB, Cunningham, RB, MacGregor, C, Tribolet, C & Donnelly, CF 2001，《林地残存物中景观基质对动物区系的影响前瞻性纵向研究：实验设计与基线数据》，《生物保护》，第101卷第2期，第160页）。

研究区域位于布里金库克湖（Lake Burrinjuck）西侧的新南威尔士州西南坡，包含4片外来松树人工林（楠安格罗、科特韦、东邦贡戈与邦贡戈），以及毗邻这些人工林的私人牧场。自1998年起，研究团队对所有样地的植被结构、覆盖度以及选定的脊椎动物类群开展重复采样，由此形成了长期观测数据集。

楠安格罗人工林样地网络完整项目所收集的相关数据集概要，可通过以下链接获取：http://www.ltern.org.au/index.php/ltern-plot-networks/nanangroe-plantation