A review of the distribution and ecology of the elusive Brown Hairstreak butterfly Thecla betulae (Lepidoptera, Lycaenidae) in the Iberian Peninsula

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY Nota Lepidopterologica Pub Date : 2022-02-03 DOI:10.3897/nl.45.76222
E. Marabuto, P. Pires, F. Romão, P. Lemos, T. Merckx
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引用次数: 1

Abstract

The Brown Hairstreak (Thecla betulae L.) is one of the least observed butterflies of the Palaearctic region, even though its distribution spans from Portugal in the west, to Russia and Korea in the far east. Adults are arboreal and seldom descend to ground level. As a result, this species is mostly monitored via the detection of eggs on the food plant during wintertime. In the Iberian Peninsula, this species was largely unknown until very recently, but a recent burst of regional studies in Spain has begun bridging this gap. However, their focused nature and a still incomplete knowledge on T. betulae in Portugal promoted the need for an integrative study at the Iberian scale. Here, we carried out a full literature review on the distribution, ecology and behaviour of T. betulae in Portugal and Spain. Complemented with field work in Portugal, we revealed an almost continuous distribution in the northern third of Iberia, whilst populations further south are mostly mountain-bound. In order to help with future discovery of new populations, we built a species-distribution model relating its occurrence with bioclimatic variables. This model accurately explains the current known occupation of the territory and highlights other areas where the species may potentially be found. Finally, we found evidence of a broadening of the species’ niche through the local use of an hitherto unknown food plant. This study sets a new knowledge baseline for future works and conservation of T. betulae through southern Europe.
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伊比利亚半岛难以捉摸的褐斑蝶Thecla betulae(鳞翅目,石首蝶科)的分布与生态学研究进展
褐毛蝶(Thecla betulae L.)是古北界观察最少的蝴蝶之一,尽管其分布范围从西部的葡萄牙到远东的俄罗斯和韩国。成虫栖息在树上,很少下降到地面。因此,该物种主要通过在冬季检测食用植物上的卵子来监测。在伊比利亚半岛,直到最近,这种物种还基本上不为人知,但最近在西班牙爆发的一系列区域研究已经开始弥合这一差距。然而,他们专注的性质和对葡萄牙T.betulae仍然不完整的了解促进了对伊比利亚规模的综合研究的必要性。在这里,我们对葡萄牙和西班牙的T.betulae的分布、生态和行为进行了全面的文献综述。与葡萄牙的实地工作相补充,我们发现伊比利亚半岛北部三分之一的地区几乎连续分布,而更南部的人口大多居住在山区。为了帮助未来发现新的种群,我们建立了一个物种分布模型,将其发生与生物气候变量联系起来。该模型准确地解释了目前已知的对该地区的占领,并突出了可能发现该物种的其他地区。最后,我们发现了通过在当地使用一种迄今为止未知的食用植物来扩大该物种生态位的证据。这项研究为未来在南欧开展白蜡树的研究和保护工作奠定了新的知识基础。
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来源期刊
Nota Lepidopterologica
Nota Lepidopterologica Agricultural and Biological Sciences-Insect Science
CiteScore
1.70
自引率
14.30%
发文量
20
审稿时长
14 weeks
期刊介绍: Nota Lepidopterologica is the scientific, peer-reviewed journal of the Societas Europaea Lepidopterologica (SEL). It publishes original contributions to the study of mainly but not exclusively Palaearctic Lepidoptera, especially on taxonomy, morphology/anatomy, phylogenetics, biogeography, ecology, behaviour, and conservation, but also on any other aspects of lepidopterology. All articles are published in English, with the possibility of having the summary written in other languages. All submitted manuscripts are subject to peer-review by the leading specialists for the respective topic. The journal is published in open access high-resolution PDF, semantically enriched HTML and machine-readable XML versions. All papers can be freely copied, downloaded, printed and distributed at no charge. Authors and readers are thus encouraged to post the pdf files of published papers on homepages or elsewhere to expedite distribution. Publication is free for the SEL members and there is no charge for color.
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