粪便样品取样部位对东北虎食性分析的影响
粪便是开展野生动物种群生态学、遗传特征、疾病与健康状况等研究的重要样品。由于东北虎(Panthera tigris altaica)种群处于濒危状态,粪便样品收集困难,为满足多种研究目的,同一样品往往被分成不同部分用于不同分析。然而部分取样以及不同部位间的差异是否会影响研究结果并未得到科学验证。为此,本研究基于野生东北虎粪便样品,运用DNA宏条形码技术分析东北虎的食物组成,并比较不同粪便取样部位间的结果差异。结果显示:东北虎的食物组成包括野猪(Sus scrofa)、梅花鹿(Cervus nippon)、狍(Capreolus pygargus)等大宗食物(相对序列丰度22.130 0%~42...
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| Published in | 野生动物学报 Vol. 46; pp. 473 - 482 |
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| Main Authors | , , , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
Editorial Department of Chinese Journal of Wildlife
01.08.2025
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| Subjects | |
| Online Access | Get full text |
| ISSN | 2310-1490 |
| DOI | 10.12375/ysdwxb.20250301 |
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| Abstract | 粪便是开展野生动物种群生态学、遗传特征、疾病与健康状况等研究的重要样品。由于东北虎(Panthera tigris altaica)种群处于濒危状态,粪便样品收集困难,为满足多种研究目的,同一样品往往被分成不同部分用于不同分析。然而部分取样以及不同部位间的差异是否会影响研究结果并未得到科学验证。为此,本研究基于野生东北虎粪便样品,运用DNA宏条形码技术分析东北虎的食物组成,并比较不同粪便取样部位间的结果差异。结果显示:东北虎的食物组成包括野猪(Sus scrofa)、梅花鹿(Cervus nippon)、狍(Capreolus pygargus)等大宗食物(相对序列丰度22.130 0%~42.660 0%),以及中级捕食者、啮齿类、鸟类在内的多种消遣性食物(0.000 3%~0.480 0%);不同粪便取样部位间,食物的相对生物贡献量无显著差异(P > 0.05),但组合取样方案检测出的物种数量最多[(6.50 ± 1.29)种],显著高于其他取样方案(P < 0.05)。研究结果提示了在开展基于粪便样品对东北虎营养、遗传和疾病等分析时考虑取样部位潜在影响的必要性,特别是在无法使用完整粪便样品或关注于稀有食物种类鉴定时,多部位组合取样是获得可靠结果的最优方案。 |
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| AbstractList | 粪便是开展野生动物种群生态学、遗传特征、疾病与健康状况等研究的重要样品。由于东北虎(Panthera tigris altaica)种群处于濒危状态,粪便样品收集困难,为满足多种研究目的,同一样品往往被分成不同部分用于不同分析。然而部分取样以及不同部位间的差异是否会影响研究结果并未得到科学验证。为此,本研究基于野生东北虎粪便样品,运用DNA宏条形码技术分析东北虎的食物组成,并比较不同粪便取样部位间的结果差异。结果显示:东北虎的食物组成包括野猪(Sus scrofa)、梅花鹿(Cervus nippon)、狍(Capreolus pygargus)等大宗食物(相对序列丰度22.130 0%~42.660 0%),以及中级捕食者、啮齿类、鸟类在内的多种消遣性食物(0.000 3%~0.480 0%);不同粪便取样部位间,食物的相对生物贡献量无显著差异(P > 0.05),但组合取样方案检测出的物种数量最多[(6.50 ± 1.29)种],显著高于其他取样方案(P < 0.05)。研究结果提示了在开展基于粪便样品对东北虎营养、遗传和疾病等分析时考虑取样部位潜在影响的必要性,特别是在无法使用完整粪便样品或关注于稀有食物种类鉴定时,多部位组合取样是获得可靠结果的最优方案。 |
| Author | 齐进哲 赵岩 程志刚 顾佳音 吴净雨 姜广顺 程万年 宋涛 刘东起 |
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| SubjectTerms | DNA宏条形码 东北虎 粪便取样部位 食物组成 |
| Title | 粪便样品取样部位对东北虎食性分析的影响 |
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