Cat and Dingoes- camera trap dataset, Wongalara Wildlife Sanctuary

Predation by feral cats Felis sylvestris catus is currently one hypothesized cause for the recent dramatic small mammal declines across northern Australia. We conducted a field experiment to measure the effect of predation by for this areas typically low-density cat populations on the demography of a native small mammal which due to the now natural scarce abundance of small mammals in the wild had to be reintroduced. We established two 12.5-ha enclosures in tropical savanna woodland on Wongalara Sanctuary, south of Arnhem Land in the Northern Territory. Each enclosure was divided in half, with cats allowed access to one half but not the other. We introduced about 20 individuals of Rattus villosissimus, a native rodent, into each of the four compartments (two enclosures x two predator-access treatments) and monitored rat demography by mark-recapture analysis and radio-tracking, and predator incursions by camera surveillance and track and scat searches. The data can be used for the mark-recapture analysis. The radio-tracking data and predator incursions data will be uploaded separately.

The Cat and Dingoes camera trap dataset was produced using a heat-in-motion cameras (Reconyx PC800 Hyperfire, Holmen, Wisconsin, USA) around the outside of the perimeter fences to detect predators. At least four (but up to six and always the same number of cameras at a time) cameras were placed as one camera installed at each side on the outside of the fences of each enclosure. Cameras were un-baited, to avoid attracting predators. This one file dataset contains the information on the presence/absence data of cats and dingoes on each day. 'Site' indicates the enclosure the camera was attached to ('Enclosure_I' or Enclosure_II'), 'Camera number' indicates which site the camera was on. Note that between October 2011 and April 2012, Enclosure II had two additional cameras (one facing the front gate and one additional monitoring the lower half of the back fence of the enclosure) which resulted in a total of six cameras for during that time. 'Date' indicates the date the photo(s) was/were taken, 'Photos_recorded' whether the camera was operational or photos were retained (e.g. one SD-cards was lost). And columns 'Dingo' and 'Cat' indicate whether these animals were present that day or not (na = no photos recorded, 0 = not present that day, 1 = present that day).

野生家猫（*Felis sylvestris catus*）的捕食行为，目前被认为是澳大利亚北部近期小型哺乳动物种群急剧下降的潜在诱因之一。本研究开展野外实验，旨在评估该区域典型低密度野猫种群的捕食行为对本土小型哺乳动物种群动态的影响；由于野外小型哺乳动物种群本就稀缺，该受试物种需通过人工放归引入实验场地。我们在北领地阿纳姆地以南的Wongalara保护区（Wongalara Sanctuary）的热带稀树草原林地中，设置了两处面积为12.5公顷的围栏试验区。每处围栏均被均分为两个区域，其中一个区域允许野猫进入，另一个区域则排除野猫干扰。我们向四个试验单元（2处围栏×2种捕食者准入处理）各放归约20只长毛鼠（*Rattus villosissimus*，一种本土啮齿动物），并通过标记重捕法与无线电追踪法监测该啮齿动物的种群动态，同时通过相机监测、足迹调查与粪便搜寻记录捕食者的入侵情况。本数据集可用于标记重捕分析相关研究；无线电追踪数据与捕食者入侵监测数据将另行上传。

本野猫与澳洲野犬相机陷阱数据集，采用热感应运动相机（Reconyx PC800 Hyperfire，美国威斯康星州霍尔门市）在围栏外围布设以监测捕食者活动。每处围栏的外侧每一侧均布设一台相机，单次布设相机数量至少为4台（最多可达6台，且每次布设的相机总数保持一致）。所有相机均未放置诱饵，以避免人为吸引捕食者。本单文件数据集包含每日野猫与澳洲野犬的出现/未出现记录数据。"Site"字段代表相机所在的围栏编号（"Enclosure_I"或"Enclosure_II"）；"Camera number"字段代表相机所在的围栏侧位。需注意，2011年10月至2012年4月期间，"Enclosure II"额外增设了2台相机（1台正对正门，1台用于监测围栏后段下半区域），此阶段该围栏的相机总数达到6台。"Date"字段代表照片拍摄日期；"Photos_recorded"字段用于标识相机是否正常运行或照片是否被留存（例如存在SD存储卡丢失的情况）。"Dingo"与"Cat"字段分别代表当日是否检测到对应动物（na=未拍摄到有效照片，0=当日未出现，1=当日出现）。