Nanangroe Plantation Plot Network: Nocturnal Birds Spotlight Survey, Southwest Slopes, NSW, Australia, 1999+

This nocturnal birds survey data package comprises spotlight surveys conducted every two years along 200 metre fixed transects at each site for 20 minutes per site. Animal species and abundance are recorded. Distances along and adjacent to a transect are also recorded. If animals are up on a tree, tree species and animal height (distance from the ground to the animal) are also recorded. Nocturnal birds are also detected by the calls during spotlighting.

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.

这个夜行性鸟类调查数据包包含每两年开展一次的聚光灯调查，调查在各站点沿200米固定样线进行，每个站点调查时长为20分钟。记录内容包括动物物种及丰度、沿样线及样线周边的距离；若动物栖息于树上，则额外记录树种及动物高度（从地面至动物的距离）。此外，聚光灯调查期间也通过鸣叫声检测夜行性鸟类。

Nanangroe研究的核心目标是直接量化林地脊椎动物群落的变化，以及当周边景观基质从半开垦放牧景观转变为外来软木人工林主导的景观时，这些群落与栖息地变量之间的关系（Lindenmayer, DB, Cunningham, RB, MacGregor, C, Tribolet, C & Donnelly, CF 2001, 《林地残遗区动物群的景观基质效应前瞻性纵向研究：实验设计与基线数据》，《生物保护》，第101卷第2期，第160页）。

研究区域位于新南威尔士州（NSW）Burrinjuck湖以西的西南部斜坡地带，涵盖四个外来松树人工林（Nanangroe、Cotway、East Bungongo及Bungongo）及这些人工林周边的私有地块。自1998年起，对所有站点的植被结构与覆盖度及选定脊椎动物类群进行重复采样，形成了长期数据集。

作为Nanangroe人工林样地网络完整项目的一部分，相关数据包概要可通过以下网址获取：http://www.ltern.org.au/index.php/ltern-plot-networks/nanangroe-plantation。