Forensic Investigation Research Station, Colorado Mesa University, Grand Junction, CO, USA.
J Forensic Sci. 2021 Jul;66(4):1420-1426. doi: 10.1111/1556-4029.14716. Epub 2021 Apr 22.
Scavenging is a known behavior of striped skunks (Mephitis mephitis), though it is rarely documented. Striped skunks were observed and documented scavenging nine human donors at the Forensic Investigation Research Station (FIRS) in Whitewater, Colorado from October 2017 through September 2019. Human remains are placed on the surface, outdoors, in a fenced area, and monitored daily through notes, photographs, and multiple systems for scoring decomposition. Motion-activated game cameras are strategically positioned to monitor potential scavenger activity within the facility. When scavenging occurred, game camera images were temporally correlated to daily photographs and notes to confirm the source of observed defects. Striped skunks at the FIRS scavenged the soft tissue of the arms, legs, genitals, and torso. Game camera images documented skunks digging, climbing on top of remains, repositioning limbs, and using their paws to manipulate tissue. These activities impacted soft tissue, bone, and the surrounding environment. Scavenging patterns varied seasonally, with higher frequency and lower selectivity in the winter. Striped skunks are common throughout most of North America and are likely to scavenge human remains when available. Understanding patterns and behaviors of specific scavengers can help investigators accurately interpret defects found on and around human remains.
食腐是条纹臭鼬(Mephitis mephitis)的一种已知行为,尽管很少有记录。2017 年 10 月至 2019 年 9 月,在科罗拉多州白水的法医调查研究站(FIRS),观察并记录了条纹臭鼬对 9 个人体供体进行食腐。人类遗骸被放置在户外有围栏的区域表面,并通过笔记、照片和多个评分分解系统进行日常监测。运动激活的游戏摄像机被战略性地放置在设施内,以监测潜在的食腐动物活动。当发生食腐行为时,游戏摄像机图像与每日照片和笔记的时间相关联,以确认观察到的缺陷的来源。FIRS 的条纹臭鼬会吞食手臂、腿部、生殖器和躯干的软组织。游戏摄像机图像记录了臭鼬挖掘、爬到遗骸上、重新定位四肢以及用爪子操纵组织的行为。这些活动影响了软组织、骨骼和周围环境。食腐行为随季节而变化,冬季的频率更高,选择性更低。条纹臭鼬在北美洲的大部分地区都很常见,当有机会时,它们很可能会食腐人类遗骸。了解特定食腐动物的行为模式可以帮助调查人员准确解释在人类遗骸上和周围发现的缺陷。