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Is cat hunting by Indigenous tracking experts an effective way to reduce cat impacts on threatened species?
Wildlife Research ( IF 1.9 ) Pub Date : 2020-01-01 , DOI: 10.1071/wr20035
Rachel Paltridge , Nolia Napangati Ward , John Tjupurrula West , Kate Crossing

Abstract Context. Feral cat is a favoured food item in some Australian Indigenous communities. We describe how cats are hunted and whether cat hunting can contribute to the persistence of threatened species. Aims. To determine whether cat hunting by expert trackers has the potential to be an effective method of managing predation impacts on threatened species at key sites. Methods. We recorded all cats captured on the Kiwirrkurra Indigenous protected area (Kiwirrkurra IPA) over a 5-year period by offering incentive payments for hunters to report their catch. For a subset of hunts, we measured the duration and distance of the hunt. We compared the frequency of occurrence of cat tracks in 2-ha track plots between the hunting zone and more remote, unmanaged areas. At a finer scale, we compared cat presence at bilby burrows inside and outside the hunting zone. Key results. In all, 130 cats were removed from the Kiwirrkurra IPA from 2014 to 2019. Hunts took an average of 62 min to complete and a team of four hunters could catch up to four cats in a single day. Although cats still occurred throughout the hunting zone, we found that cat detections at track plots were less likely in the areas where cats were hunted. Long-term data suggest that threatened species have persisted better in areas where there is an active presence of hunters. Conclusions. Cat hunting by Indigenous tracking experts is an efficient method of despatching cats at localised sites. Following footprints on foot facilitates the targeting of individual cats that are hunting at threatened species burrows. More rigorous studies are required to determine whether cat hunting significantly reduces predation on threatened species, or whether there are other co-benefits of maintaining a presence of hunters in the landscape (such as fine-scale fire management) that are more important for the persistence of vulnerable prey. Implications. Wherever open sandy substrates occur, there is potential to employ Indigenous expert trackers to assist with the removal of problem cats, such as, for example, to complete cat eradication inside fenced reintroduction sites, or at times of peak prey vulnerability, such as breeding events or after bushfires.

中文翻译:

土著追踪专家的猫狩猎是减少猫对受威胁物种影响的有效方法吗?

摘要上下文。在一些澳大利亚土著社区,野猫是一种受欢迎的食物。我们描述了猫是如何被猎杀的,以及猎猫是否会导致受威胁物种的持续存在。目标。确定专家追踪者狩猎猫是否有可能成为管理关键地点受威胁物种捕食影响的有效方法。方法。我们记录了 5 年内在 Kiwirrkurra 土著保护区 (Kiwirrkurra IPA) 捕获的所有猫,为猎人报告捕获量提供奖励。对于一部分狩猎,我们测量了狩猎的持续时间和距离。我们比较了狩猎区和更偏远的未管理地区之间的 2 公顷跟踪地块中猫跟踪的发生频率。在更细的尺度上,我们比较了狩猎区内外的 bilby 洞穴中的猫。关键结果。从 2014 年到 2019 年,总共有 130 只猫从 Kiwirrkurra IPA 中被移除。狩猎平均需要 62 分钟才能完成,四名猎人团队一天最多可以捕捉四只猫。尽管在整个狩猎区仍然有猫出现,但我们发现在猫被猎杀的地区,在跟踪地块中发现猫的可能性较小。长期数据表明,在猎人活跃的地区,受威胁物种的生存能力更好。结论。土著追踪专家的猫狩猎是一种在本地站点派遣猫的有效方法。步行跟踪脚印有助于瞄准在受威胁物种洞穴中狩猎的个别猫。需要更严格的研究来确定猫狩猎是否显着减少了对受威胁物种的捕食,或者是否还有其他对持续存在更重要的猎人在景观中存在的共同利益(例如精细规模的火灾管理)脆弱的猎物。影响。只要出现开放的沙质基质,就有可能使用土著专家追踪器来协助清除问题猫,例如在围栏重新引入地点内完成猫的根除,或在猎物脆弱性高峰期,例如繁殖事件或在丛林大火之后。或者在景观中保持猎人的存在是否还有其他共同利益(例如精细规模的火灾管理),这对于脆弱猎物的持久性更为重要。影响。只要出现开放的沙质基质,就有可能使用土著专家追踪器来协助清除问题猫,例如在围栏重新引入地点内完成猫的根除,或在猎物脆弱性高峰期,例如繁殖事件或在丛林大火之后。或者在景观中保持猎人的存在是否还有其他共同利益(例如精细规模的火灾管理),这对于脆弱猎物的持久性更为重要。影响。只要出现开放的沙质基质,就有可能使用土著专家追踪器来协助清除问题猫,例如在围栏重新引入地点内完成猫的根除,或在猎物脆弱性高峰期,例如繁殖事件或在丛林大火之后。
更新日期:2020-01-01
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