Maternal and larval niche construction interact to shape development, survival, and population divergence in the dung beetle Onthophagus taurus,Evolution and Development

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Maternal and larval niche construction interact to shape development, survival, and population divergence in the dung beetle Onthophagus taurus
Evolution and Development ( IF 2.6 ) Pub Date : 2020-08-16 , DOI: 10.1111/ede.12348
Guillaume J Dury ₁ , Armin P Moczek ₁ , Daniel B Schwab ₁

Affiliation

Through niche construction, organisms modify their environments in ways that can alter how selection acts on themselves and their offspring. However, the role of niche construction in shaping developmental and evolutionary trajectories, and its importance for population divergences and local adaptation, remains largely unclear. In this study, we manipulated both maternal and larval niche construction and measured the effects on fitness‐relevant traits in two rapidly diverging populations of the bull‐headed dung beetle, Onthophagus taurus. We find that both types of niche construction enhance adult size, peak larval mass, and pupal mass, which when compromised lead to a synergistic decrease in survival. Furthermore, for one measure, duration of larval development, we find that the two populations have diverged in their reliance on niche construction: larval niche construction appears to buffer against compromised maternal niche construction only in beetles from Western Australia, but not in beetles from the Eastern United States. We discuss our results in the context of rapid adaptation to novel conditions and the role of niche construction therein.

中文翻译：

母体和幼体的生态位构建相互作用以塑造development甲金龟（Onthophagus taurus）的发育，生存和种群分化

通过生态位的构建，生物体可以改变环境的方式，从而改变选择对自身及其后代的作用。然而，生态位建设在塑造发展和进化轨迹中的作用及其对人口差异和地方适应的重要性仍然不清楚。在这项研究中，我们操纵了母体和幼体的生态位构建，并测量了两个快速分散的牛头甲虫Onthophagus taurus种群对健身相关性状的影响。。我们发现，两种类型的利基结构都可以增加成年个体的大小，峰值幼虫质量和p质量，一旦受损，它们会导致生存协同下降。此外，从某种程度上讲，幼虫发育的持续时间，我们发现这两个种群对生态位构建的依赖性有所不同：幼虫的生态位构建似乎仅对来自澳大利亚西部的甲虫而不对来自澳大利亚的甲虫的产妇生态位构建起到缓冲作用。美国东部。我们在快速适应新条件和其中利基建设的作用的背景下讨论了我们的结果。

更新日期：2020-09-28

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