Evidence of developmental niche construction in dung beetles: effects on growth, scaling and reproductive success
Evidence of developmental niche construction in dung beetles: effects on growth, scaling and reproductive success
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粪甲虫发育生态位构建的证据：对生长、结垢和繁殖成功的影响
DOI：
10.1111/ele.12830
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发表时间：
2017
期刊：
影响因子：
8.8
通讯作者：
Coulson, ed., Tim
中科院分区：
文献类型：
--
作者：
Schwab, Daniel B.;Casasa, Sofia;Moczek, Armin P.;Coulson, ed., Tim
生态位构建发生在生物体通过其生理和行为改变其环境并改变选择条件时。这种修饰可以使表型变异偏向，并增强生物体与环境的适应性。然而，很少有研究存在的实验评估环境变化的形状发展和健身结果的程度，他们的影响如何可能不同的物种，并确定潜在的近似机制。在这里，我们实验性地消除环境的修改从发育环境ofOnthophagusdung甲虫。我们表明，这些修改（1）差异影响物种之间的生长，（2）在适合度相关性状中始终形成比例关系，（3）对于维持性二型性是必要的，（4）影响至少一个物种的雌性之间的繁殖成功率，（5）暗示外部瘤胃的幼虫培养是环境改造的可能机制。我们的研究结果表明Onthophagus幼虫从事生态位建设，这是甲虫发展和健身的基本组成部分。
Niche construction occurs when organisms modify their environments and alter selective conditions through their physiology and behaviours. Such modifications can bias phenotypic variation and enhance organism–environment fit. Yet few studies exist that experimentally assess the degree to which environmental modifications shape developmental and fitness outcomes, how their influences may differ among species and identify the underlying proximate mechanisms. Here, we experimentally eliminate environmental modifications from the developmental environment ofOnthophagusdung beetles. We show that these modifications (1) differentially influence growth among species, (2) consistently shape scaling relationships in fitness‐related traits, (3) are necessary for the maintenance of sexual dimorphism, (4) influence reproductive success among females of at least one species and (5) implicate larval cultivation of an external rumen as a possible mechanism for environmental modification. Our results present evidence thatOnthophaguslarvae engage in niche construction, and that this is a fundamental component of beetle development and fitness.