Bird Survey Data, Cumberland Plain SuperSite, 2015

Bird community composition is surveyed along an established 1 km point transect through Cumberland Plain Woodland. Dominant overstorey tree species include Eucalyptus tereticornis, Eucalyptus moluccana, Angophora subvelutina and Melaleuca decora with an understorey including Bursaria spinosa and Acacia parramattensis over a predominantly grassy ground storey. Surveys are undertaken quarterly by three or four experienced observers. Surveys commence at first light. Observers walk slowly along the transect in a group and pause for 5 mins at each of 11 locations spaced at 100 m intervals along the transect. Records are made at each point and while walking between points of the presence of any bird species identified from their calls, and for birds sighted and identified visually, records also include the number of individuals, distance from the observers and behaviour. Weather conditions at the time of the survey are also recorded.

本研究沿一条已布设完成的1千米点状样线（point transect），针对坎伯兰平原林地（Cumberland Plain Woodland）内的鸟类群落组成开展调查。群落优势上层乔木物种包括细叶桉（Eucalyptus tereticornis）、广叶桉（Eucalyptus moluccana）、密花杯果木（Angophora subvelutina）和华丽白千层（Melaleuca decora）；下层灌木层包含刺叶海桐（Bursaria spinosa）和帕拉马塔相思（Acacia parramattensis），地表层以草本植被为主。该调查每季度开展一次，由3至4名经验丰富的观测人员执行。调查于日出时分启动，观测人员以小组形式沿样线缓步行进，并在样线上每间隔100米设置的11个采样点处各停留5分钟。在每个采样点以及采样点间行进过程中，需记录通过鸣叫声识别出的所有鸟类物种的出现情况；对于通过目视观测并鉴定的鸟类，还需同步记录其个体数量、与观测者的距离以及行为状态。调查开展时的天气状况也需一并记录。