Ambrosia beetles adjust dispersal preferences to their degree of exhaustion

IF 2 3区 农林科学 Q2 ENTOMOLOGY
Jon Andreja Nuotclà, Michael Taborsky
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引用次数: 0

Abstract

Abstract Image

Abstract Image

伏甲虫根据疲惫程度调整散布偏好
延迟性成熟后代的散播是养菌伏甲合作繁殖的基本组成部分。这些甲虫栖息在新近枯死的树木的原木上,雌性后代推迟繁殖,在分散去寻找新的巢穴之前投资于异父异母的照料。木材质量会影响成年后代对异父异母照料的投资,从而影响繁殖者的繁殖成功率。这就提出了一个问题,即分散繁殖者是否会战略性地选择栖息地,以优化繁殖前景并调节其后代的帮助倾向。为了回答这个问题,我们在这里通过实验测试了鞘翅目:鞘翅目)在扩散过程中是否将互生真菌或致病真菌发出的嗅觉线索作为未来栖息地质量的信息来源。由于真菌与甲虫之间的互惠关系是强制性的,因此真菌气味应能提供有关栖息地质量的可靠信息,表明同种昆虫先前已成功定殖。我们没有发现直接回避病原体的证据。不过,甲虫对其互惠真菌的气味有明显的反应,这取决于传播状态。在开始分散时,雌性甲虫会避开真菌互助者的气味,而在实验性延长分散时间后,它们会被真菌互助者的气味所吸引。观察到的分散过程中的偏好变化表明,甲虫刚从其家园长廊中出来时,可能会通过避开互生者的气味来选择原始栖息地。这可能有助于避免与同类的竞争以及潜在的病原体和寄生虫交叉感染。然而,精疲力竭的甲虫可能会接受这些风险,选择成功定殖的栖息地以避免饥饿。其他具有经济影响的树皮甲虫和伏甲虫可能也会表现出栖息地偏好调整的状态依赖性,这促使我们进一步研究这些甲虫在扩散过程中使用的嗅觉线索。
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来源期刊
Ecological Entomology
Ecological Entomology 生物-昆虫学
CiteScore
4.90
自引率
4.50%
发文量
94
审稿时长
3 months
期刊介绍: Ecological Entomology publishes top-quality original research on the ecology of insects and related invertebrate taxa. Our aim is to publish papers that will be of considerable interest to the wide community of ecologists who are motivated by ecological or evolutionary theory. The suitability of a manuscript will usually be assessed within 5 days. We publish full-length Original Articles as well as Reviews, Short Communications, Methods and Natural History papers. In Original Articles, we greatly prefer papers that test specific hypotheses and which have a high degree of novelty. All categories aim for innovative contributions that advance the subject of ecological entomology.
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