Contrasting responses to microhabitat and temperature determine breeding habitat differentiation between two Viola-feeding butterflies

IF 2 3区 农林科学 Q2 ENTOMOLOGY
Andrew Wilby, Lydia Atkinson Grubb, Jessica Burrows, Rosa Menéndez
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引用次数: 0

Abstract

Abstract Image

Abstract Image

对微生境和温度的不同反应决定了两种以 Viola 为食的蝴蝶的繁殖生境差异
自 1976 年英国开始广泛监测以来,专门研究栖息地的蝴蝶种群数量急剧下降。主要驱动因素是栖息地退化,这主要是由土地使用变化引起的,或许与植被物候变化相互影响:在这里,我们重点研究了两个正在减少的物种:Boloria selene(Dennis & Schiffermüller)和 Boloria euphrosyne L.,鳞翅目:蛱蝶科。我们假设这两个物种在其偏好的繁殖栖息地方面存在差异,而这种差异是由它们对温度的偏好差异以及植被覆盖度所促成的。我们使用标记-释放-再捕获技术和产卵观察来描述和比较这两个物种的成虫分布、栖息地使用和产卵地点偏好。结果表明,这两个物种的产卵雌虫都会出现在幼虫食物植物紫罗兰(主要是紫罗兰)丰度相对较高的地区,并且它们会在紫罗兰丰度较高的地方产卵。然而,与硒蝇相反,产卵的裸冠菊往往发生在植被覆盖相对较短和稀疏的地区。裸冠菊产卵地点的植物表面温度相对较高,与环境温度无关,而硒蝇的产卵地点温度会随着环境温度的升高而升高。这些不同的温度策略可能是繁殖栖息地偏好差异的基础。春季植被生长增加导致的微气候冷却可能是英国裸冠菊数量减少的原因之一,而裸冠菊和硒冠菊可能都受到了中提琴属植物数量减少的影响。我们的数据进一步证明,导致蝴蝶数量下降的因素可能是多方面的,而且矛盾的是,如果其他物种的反应导致其栖息地变冷,嗜热物种并不一定会从气候变暖中受益。
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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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