一个完全孤立的成熟Eufydryas种群的周期丰度波动

IF 0.7 4区农林科学 Q4 ENTOMOLOGY

Nota Lepidopterologica Pub Date : 2021-10-12 DOI:10.3897/nl.44.69153

V. John, Alois Pavlíčko, V. Vrabec, Veronika Rybová, Miloš Andres, M. Konvička

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引用次数: 2

摘要

自2001年以来，通过幼虫巢穴计数监测了捷克共和国濒危的成熟叶蝉(鳞翅目:蛱蝶科)的一个高度孤立和最后的本土种群。20年的时间序列显示出显著的丰度波动，峰值周期为11年，峰值数为150 ~ 150，低谷数<15个幼虫巢(算术平均值为92.6，调和平均值为36.3)。建立更有利的场地管理可能会加剧和延长繁荣期，但并没有改变整体格局。我们把这种循环归因于天敌的压力。气候不利的年份似乎加深了萧条阶段。表现出这种波动的物种不能在单一地点内保存，目前正在通过捷克种群的迁地繁殖和最近重新建立两个额外种群来解决这个问题，目的是实现当地种群的异步动态，并最终稳定区域的超种群。

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Cyclic abundance fluctuations in a completely isolated population of Euphydryas maturna

A highly isolated and the last autochthonous Czech Republic population of the endangered Euphydryas maturna (Lepidoptera: Nymphalidae) is monitored since 2001 by larval nests counts. The 20 years` time series displays remarkable abundance fluctuations with peak-to-peak period 11 years, peak numbers >150 and bust numbers <15 larval nests (arithmetic and harmonic means: 92.6 and 36.3). Establishment of more favourable management of the site probably heightened and prolonged the boom phase but did not alter the overall pattern. We attribute the cycling to pressures of natural enemies. Climatically unfavourable years appear deepening the bust phase. Species displaying such fluctuations cannot be conserved within a single site, which is being addressed by ex-situ breeding of the Czech stock and recent reestablishment of two additional populations, with the aim to achieve asynchronous dynamics of the local populations and eventually stabilise the regional metapopulation.

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来源期刊

Nota Lepidopterologica Agricultural and Biological Sciences-Insect Science

CiteScore

1.70

自引率

14.30%

发文量

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.