专家和通用主义者之间的成人偏好-幼虫性能关系的比较:用于预测现场宿主范围的含义
Noémie Lauciello1, Christian Gilbert Mille1, Abir Hafsi2
1IAC, Equipe ARBOREAL La Foa New Caledonia.
Ecology and evolution
|August 14, 2024
概括
昆士兰果,一个通用主义者,在许多水果上表现良好,与专门的面包果果不同,它只在Artocarpus上壮成长. 这项研究有助于评估果物种入侵风险.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 生态生态学 生态生态学
- 农业 农业 农业 农业
背景情况:
- 植物食昆虫表现出广泛的宿主植物专业化,从单食到多食.
- 了解这些差异对于害虫管理和入侵风险评估至关重要.
研究的目的:
- 为了比较幼虫的表现和成人宿主偏好的一种通用主义者 (昆士兰果, * Bactrocera tryoni *) 和一个专家 (面包果, * B. umbrosa *).
- 评估幼虫表现和雌性偏好如何预测田间染模式.
主要方法:
- 在16种水果物种上评估了幼虫的表现.
- 在5种水果物种上测试了女性宿主偏好.
- 实地调查对11种水果物种进行了实地调查,以记录自然感染.
主要成果:
- *B. umbrosa* 在田间只感染 *Artocarpus* 果实,幼虫只在 *Artocarpus* 种类上发育.
- 雌性 *B. umbrosa* 显示出强烈的宿主偏好,主要在 *Artocarpus* 和 *Terminalia catappa* 上产卵.
- *B. tryoni*幼虫在16种测试水果中的13种上发育,显示出广泛的幼虫表现和较少的选择性卵位.
结论:
- 幼虫表现和雌性偏好在很大程度上预测了两种果物种的野外感染模式.
- 对比的宿主专业化为估计果物种在新环境中的入侵风险提供了有价值的数据.
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