基于寄生虫学研究的证据表明,子对敏感物种施加掠食压力
Norbert Peter1, Anna V Schantz1, Dorian D Dörge1
1Institute for Ecology, Evolution and Diversity, Goethe-University, Max-von-Laue-Str. 13, Frankfurt/Main, D-60439, Germany.
概括
德国的子捕食两动物和爬行动物,影响当地物种. 寄生虫分析证实了这种饮食联系,突出了子作为影响生态系统的入侵性捕食者.
科学领域:
- 生态生态学 生态生态学
- 侵入性物种 生物学 生物学
- 寄生虫学的寄生虫学
背景情况:
- 乌 (Procyon lotor) 是德国的一个入侵物种.
- 了解它们的饮食习惯对于评估它们对生态的影响至关重要.
- 两动物和爬行动物是本地生态系统的脆弱组成部分.
研究的目的:
- 为了研究德国子的饮食.
- 为了确定子对本地物种,特别是两动物和爬行动物的掠食程度.
- 评估子作为入侵物种对生态的影响.
主要方法:
- 来自黑森,萨克森-安哈尔特和勃兰登堡的108只子的饮食分析.
- 检查便样本和胃的内容.
- 分析甲动物寄生动物群作为猎物物种和来源的指标.
主要成果:
- 乌主要食用两动物和爬行动物,包括常见,常见新,草和草蛇.
- 检测到的寄生虫感染率很高,例如Euryhelmis squamula,Isthmiophora melis和Physocephalus sexalatus等寄生虫.
- 这些寄生虫表明两动物和爬行动物是子的饮食组成部分.
结论:
- 在德国,子对发生敏感的动物物种产生重大影响.
- 作为一种入侵物种,子会对本地物种和生态系统产生负面影响.
- 寄生虫学数据补充了饮食分析,证实了子和本土动物之间的食物来源联系.
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