发展环境是否会导致热带雨林蜥蜴的生活节奏发生变化?

IF 1.9 2区 生物学 Q3 BEHAVIORAL SCIENCES
Kali M. Buchholz, Celine T. Goulet, Madeleine de Jong, Wesley Hart, John Llewelyn, Ben L. Phillips, David G. Chapple
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引用次数: 0

摘要

生命史理论强调,有限的资源会导致在自我维持、生长、繁殖和生存等相互竞争的利益之间进行分配权衡。环境条件,尤其是发育过程中的环境条件,会影响这些生命史权衡,导致生理和行为特征与生命史策略的耦合。因此,种群的性状协变模式可能会有所不同,沿着快慢连续统一体聚集,这被称为扩展的生活节奏综合征(POLS)理论。我们的目的是通过比较人工繁殖的南方雨林石龙子(Lampropholis similis)和野生采集的南方雨林石龙子,检验生态条件的变化如何影响生活史权衡及其与行为和生理的关联。人工饲养的石龙子是野生捕获的石龙子的后代,所有测试均在实验室进行。我们发现,各组的平均生长速度、身体状况、热偏好、冲刺表现和活动能力都存在差异。与我们的预期相反,野生捕获的石龙子尽管经历了更具挑战性的环境条件,但其生活节奏却比人工饲养的石龙子更快。此外,没有发现生活史的权衡,也没有发现形成综合征的相关特征。需要进行研究以确定导致生活史权衡的近似机制,以及这些机制如何导致生理和行为特征的耦合或脱钩。这些信息将对生态力量如何驱动性状进化提供重要的启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Does the development environment cause the pace of life to change in a rainforest lizard?

Life history theory emphasizes that finite resources result in allocation trade-offs among the competing interests of self-maintenance, growth, reproduction, and survival. Environmental conditions, particularly during development, can influence these life history trade-offs, leading to the coupling of physiological and behavioural traits with life history strategies. Thus, populations may vary in the pattern of trait covariation, clustering along a fast-slow continuum, termed the extended pace-of-life syndrome (POLS) theory. We aimed to test how variation in ecological conditions influence life history trade-offs and their association with behaviour and physiology by comparing captive bred and wild-collected southern rainforest sunskink (Lampropholis similis). The captive bred skinks were the offspring of the wild-caught skinks, and all tests were conducted in the laboratory. We found that the groups differed, on average, in growth rate, body condition, thermal preferences, sprint performance, and activity. Counter to our expectation, wild-caught skinks exhibited a faster pace of life relative to captive-bred skinks despite experiencing more challenging environmental conditions. Furthermore, life history trade-offs were not detected, nor were traits correlated to form the syndrome. Studies are needed to identify the proximate mechanisms causing life history trade-offs and how they lead to the coupling, or decoupling, of physiological and behavioural traits. Such information will provide vital insight into how ecological forces drive the evolution of traits.

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来源期刊
CiteScore
3.90
自引率
8.70%
发文量
146
审稿时长
3 months
期刊介绍: The journal publishes reviews, original contributions and commentaries dealing with quantitative empirical and theoretical studies in the analysis of animal behavior at the level of the individual, group, population, community, and species.
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