确定美国埋葬甲虫 (Nicrophorus americanus) 奥利维尔的基于年龄的颜色变化,对保护工作有影响
Robert Shane McMurry1, Michael C Cavallaro1, Andrine Shufran1
1Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK 74078, USA.
Insects
|November 24, 2023
概括
科学家们通过分析它们标记的颜色变化,为美国埋葬甲虫 (Nicrophorus americanus) 开发了一种现场衰老方法. 这种技术可以准确地估计甲虫的年龄,有助于保护这种受保护的昆虫的保护工作.
科学领域:
- 保护生物学 保护生物学
- 昆虫学 昆虫学是一门学科.
- 野生动物管理 野生动物管理
背景情况:
- 美国埋葬甲虫 (Nicrophorus americanus) 是一个受到联邦保护的物种,其历史范围遍及北美东部.
- 准确地确定成年甲虫的年龄对于有效的保护和研究至关重要,但在现场环境中具有挑战性.
- 在成年甲虫标记中观察到的颜色变化表明了年龄估计的潜力.
研究的目的:
- 在美国埋葬甲虫标记的颜色变化在整个成年寿命的特征,用于现场老化应用.
- 开发一种可靠的方法来估计自然种群中N. americanus的年龄.
主要方法:
- 20只在俘中繁殖的美国埋葬甲虫 (10只雄性,10只雌性) 定期拍摄,从化到死亡.
- 颜色数据 (灰度和RGB) 通过使用ImageJ软件从前和角形标记中提取.
- 线性混合效果模型分析了颜色通道的变化;开发了一个前色图,并对299只甲虫进行了现场测试.
主要成果:
- 红色显示出前体和体标记的显著减少,前体的下降更为.
- 灰度值显示,与体标记相比,前体标记的变黑速度更快.
- 一个适用于现场的前色彩图区分了六个年龄类别 (从年轻到老化) 与定义的日间范围.
结论:
- 对前标记的色彩分析提供了一种可行的方法来估计美国埋葬甲虫在野外的年龄.
- 改进的年龄估计将增强人口结构分析,养殖养殖计划和重新引入策略的N. americanus.
- 这种非侵入性技术支持正在进行的保护计划,以保护这个危的昆虫.
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