Adult thermoregulatory behaviour does not provide, by itself, an adaptive explanation for the reflectance–climate relationship (Bogert's pattern) in Iberian butterflies

IF 2 3区 农林科学 Q2 ENTOMOLOGY
Mario Álamo, Enrique García-Barros, Helena Romo
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Abstract

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成年体温调节行为本身并不能为伊比利亚蝴蝶的反射率-气候关系(博格特模式)提供适应性解释
昆虫翅膀颜色较深、反射率较低与较冷环境(Bogert’s rule)的关联被认为与成虫的体温调节有关,但适应性解释及其对气候变暖敏感性的影响尚未得到验证。我们使用比以前的方法更精细的分辨率数据重新评估蝴蝶的模式,包括地理和形态,并测试其与最近变暖对蝴蝶影响的证据的相关性。我们比较了不同网格尺寸下的反射率与气候的关系,选择了反射率测量的最佳子集,并测试了物种晒晒模式的贡献、数据的系统发育结构以及反射率与出版丰度或海拔高度变化之间的相关性。我们使用了来自伊比利亚半岛222个物种的标准化RGB(红、绿、蓝)值,以及来自研究区域(10和50公里分辨率)和欧洲(50公里分辨率)的区域平均温度和降水数据。在更精细的地理和形态分辨率下,反射率和温度之间的相关性增加。然而,蝴蝶晒模式并没有改善对该模式的统计解释。反射率表现出较强的系统发育结构,而方差划分表明气候变量在反射率-气候相关性中的纯粹贡献较差。总的来说,平均温度和降水只是蝴蝶反射率的适度预测因子。使用假设的最佳反射率估计,没有发现反射率与最近的丰度或高度变化之间的相关性。虽然蝴蝶遮阳和高度变化之间的显著相关性在两个反射率测量中被发现,但这被解释为这种关系预测能力的弱证据,可能是人为的证据。反射率的强系统发育模式和所分析的反射率测量的低比例表明,仍然需要对其他解释进行测试,以阐明蝴蝶的颜色-环境关系的含义,这种关系可能具有复杂的性质。从适应性的角度来看,解开蝴蝶Bogert模式的基础需要一个更接近的,栖息地水平的方法和成年体温调节行为的替代变量进行测试。
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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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