谁掌握了绳? 没有人. 无花果树和它们的无花果黄蜂授粉者之间的互惠关系中的上下文依赖的资源分配
Manasa Kulkarni1, Nehal Vijay Naik1,2, Renee M Borges3
1Centre for Ecological Sciences, Indian Institute of Science, Bengaluru, 560012, India.
Oecologia
|May 27, 2024
概括
在无花果-黄蜂互惠主义中,无花果树根据授粉黄蜂的数量调整资源分配. 种子和黄蜂胆都会影响资源分配,在这种交换中表现出共生体的控制.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 植物与昆虫的相互作用
背景情况:
- 互惠主义涉及相互交换,但宿主控制通常强调对共生体的影响.
- 无花果中的繁殖地点授粉相互关系涉及黄蜂授粉花朵,以换取幼虫发育地点 ().
研究的目的:
- 为了研究授粉者如何影响无花果花朵 (syconia) 中的资源分配.
- 确定无花果树或它们的黄蜂共生体是否在这种互惠主义中调节资源交换.
主要方法:
- 试验性操纵花,只含有种子 (S),只含有胆 (G),或两者 (SG).
- 改变引入的雌性授粉黄蜂的数量,以产生不同的胆汁负载.
- 测量生物质分配到syconia,并评估种子和黄蜂的干质量.
主要成果:
- 生物质分配因造数量和治疗类型而异;在较低的造数量下,SG治疗获得了更多的资源,而在较高的数量下,G和SG治疗获得了更多的资源.
- 种子影响了在低造数量的分配,而胆子在高数量的分配中变得更有影响力.
- 在G和SG处理中,syconium壁的分配增加,可能是为了保护. 种子和黄蜂干量保持一致,表明资源流的自我调节.
结论:
- 无花果树根据受粉黄蜂的数量以及种子或胆子的存在,动态地将资源分配给.
- 共生黄蜂在获取资源和调节无花果黄蜂互惠关系中的交换方面发挥着直接作用.
- 这项研究强调了在相互相互作用中考虑共生体代理的重要性.
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