在不同毛毛虫物种中发展的异种类型寄生虫之间间接植物介导的相互作用
Maximilien A C Cuny1, Romain Pierron2, Rieta Gols3
1Laboratory of Entomology, Wageningen University, P.O. Box 16, 6700 AA, Wageningen, The Netherlands. maxcuny@hotmail.com.
Oecologia
|October 27, 2023
概括
寄生虫通过植物间接地相互影响,其影响因宿主-寄生虫系统和食时间而异. 这揭示了发展中的寄生虫幼虫共享食物植物之间的复杂的植物介导相互作用.
科学领域:
- 生态生态学 生态生态学
- 昆虫学 昆虫学是一门学科.
- 植物与昆虫的相互作用
背景情况:
- 寄生虫改变宿主生理,影响植物对草食的反应.
- 这些植物间接的影响可以间接影响其他昆虫,包括其他寄生虫.
- 寄生虫幼虫通过共享宿主植物之间的相互作用尚不清楚.
研究的目的:
- 为了研究两个不同的宿主-寄生虫系统之间的植物介导相互作用.
- 为了检查连续和同时食Brassica oleracea如何影响寄生虫的性能.
- 通过植物诱导来确定寄生虫是否间接地影响彼此的发育.
主要方法:
- 研究了两个系统:Mamestra brassicae (寄生于微型炎媒介) 和Pieris rapae (寄生于Cotesia rubecula).
- 在共享植物上评估了草食动物的表现和寄生虫的发展 (死亡率,时间,体重).
- 在顺序和同时养场景下比较结果.
主要成果:
- 寄生或非寄生宿主诱导植物并没有影响草食动物的表现.
- 在由M.媒介寄生宿主诱导的植物上,Cotesia rubecula寄生体重量增加了15%.
- 在由同种类寄生虫诱导的植物上,微型炎媒介的发育时间减少了30%,但不是异种类的寄生虫.
- 寄生虫在同时食时不会影响对方的表现.
结论:
- 寄生虫幼虫可以对彼此产生不对称的,间接的,植物介导的作用.
- 这些间接相互作用取决于特定的宿主-寄生虫系统和食顺序.
- 寄生虫之间的植物介导相互作用是可能的,即使宿主是不同的物种,只要他们分享一个食物植物.
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