Golden bandicoot raw tracking data

In 2010, vulnerable golden bandicoots (Isoodon auratus) were translocated from Barrow Island, Western Australia, to a predator-free enclosure on the Matuwa Indigenous Protected Area. Golden bandicoots were once widespread throughout a variety of arid and semi-arid habitats of central and northern Australia. Like many small to medium-sized marsupials, the species has severely declined since colonisation and has been reduced to only four remnant natural populations. Between 2010 and 2020 the reintroduced population of golden bandicoots on Matuwa was monitored via capture mark-recapture data collection which was used in spatially explicit capture-recapture analysis to monitor their abundance over time. In 2014, we used VHF transmitters to examine the home range and habitat selection of 20 golden bandicoots in the enclosure over a six-week period. We used compositional analysis to compare the use of four habitat types. Golden bandicoot abundance in the enclosure slowly increased between 2010 and 2014 and has since plateaued at approximately one quarter of the density observed in the founding population on Barrow Island. The population may have plateaued because some bandicoots escape through the fence. Golden bandicoots used habitats dominated by scattered shrubland over spinifex grass more than expected given the habitat’s availability. Nocturnal foraging range was influenced by sex and trapping location, whereas diurnal refuge habitat was consistent across sex and trapping location. Our work suggests that diurnal refuge habitat may be an important factor for the success of proposed translocations of golden bandicoots.2010年，易危金袋狸（golden bandicoot，*Isoodon auratus*）从澳大利亚西部的巴罗岛被易地转移至马图瓦原住民保护区（Matuwa Indigenous Protected Area）内的无捕食者围栏中。金袋狸曾广泛分布于澳大利亚中部与北部的各类干旱及半干旱生境中。与诸多中小型有袋类动物类似，该物种自欧洲殖民时代起种群数量严重衰退，如今仅残存4个自然种群。 2010年至2020年间，研究团队通过标记重捕法（capture mark-recapture）收集数据，对马图瓦保护区内重新引入的金袋狸种群开展监测，并采用空间显式标记重捕分析（spatially explicit capture-recapture analysis）以追踪其种群丰度随时间的变化。2014年，研究人员利用甚高频（VHF）发射器，在为期六周的周期内对围栏内20只金袋狸的家域范围与生境选择进行了研究。本研究采用成分分析法（compositional analysis）对比了四种生境类型的利用情况。 2010年至2014年间，围栏内金袋狸的种群丰度缓慢上升，此后趋于平稳，其密度约为巴罗岛奠基种群的四分之一。种群趋于平稳的原因可能是部分个体通过围栏逃逸。金袋狸对以三齿稃草（spinifex grass）为优势、伴生散生灌丛的生境利用程度高于该生境可获得性的预期水平。夜行觅食家域受性别与捕获位点的影响，而日间栖息生境的选择则不受性别与捕获位点的影响。本研究表明，日间栖息生境可能是金袋狸拟议重新引入计划成功与否的重要影响因素。