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Habitat selection by vulnerable golden bandicoots in the arid zone

机译：栖息地选择在干旱区的弱势金色带靴

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摘要

In 2010, vulnerable golden bandicoots (Isoodon auratus) were translocated from Barrow Island, Western Australia, to a mainland predator‐free enclosure on the Matuwa Indigenous Protected Area. Golden bandicoots were once widespread throughout a variety of arid and semiarid habitats of central and northern Australia. Like many small‐to‐medium‐sized marsupials, the species has severely declined since colonization 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 with spinifex grass more than expected given the habitat's availability. Nocturnal foraging range was influenced by sex and trapping location, whereas diurnal refuge habitat, which was typically under a spinifex hummock with minimal overstory vegetation, 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.
机译：在2010年，弱势黄金狸（Isoodon鲫鱼）从巴罗岛，西澳大利亚易位，对Matuwa土著保护区大陆自由捕食机箱。金袋狸曾经广泛分布的各种澳大利亚中部和北部的干旱和半干旱的栖息地。像许多小到中型的有袋动物，该物种已严重自从殖民下降，已减少到只有四个残自然种群。 2010年和2020年间，在Matuwa金色狸的重新人口通过捕获 - 标记 - 再捕获数据的收集，这是在空间上明确捕获再捕获分析用于监控它们的丰度随时间监测。在2014年，我们使用的VHF发射机检查活动范围，并在外壳20个金袋狸栖息地选择在六个星期内。我们用成分分析比较用四颗生境类型。金袋狸丰度机箱2010和2014年间增长缓慢，大约四分之一在巴罗岛成立人群中观察到的密度已经趋于稳定以来。人口可能已经趋于稳定，因为一些狸逃通过围栏。金袋狸使用分散的灌木带刺草为主的多个给定的生境的可用性比预期的栖息地。夜间觅食范围是通过性别和诱捕位置的影响，而昼夜避难所栖息地，这是典型地具有最小林冠植被一个三齿稃小丘下，是跨性别和诱捕位置是一致的。我们的研究表明昼夜避难的栖息地可能是金色狸的建议易位的成功的重要因素。

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