捷克共和国西波西米亚森林火灾事件对飞蛾群落的影响

IF 0.4 4区 环境科学与生态学 Q4 ECOLOGY
Jan Walter, A. Bartoňová, Z. Fric
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引用次数: 1

摘要

火灾对全球自然生态系统的物种多样性具有重要影响。火灾对无脊椎动物的影响可能是直接的,而物种群落的恢复可能是一个长期的过程。2019年5月至11月,我们在捷克共和国西波西米亚的一片松林中记录了飞蛾群落,那年4月当地发生了火灾。我们在一个被烧毁的地点和两个相邻的未被烧毁的地点使用了紫外线诱捕器,这些地点与火灾发生前被烧毁的地点具有相似的特征。利用优势度指数、Shannon-Wiener指数和Shannon-Wiener均匀度、Simpson指数和Chao1非参数估计对飞蛾组合进行了分析。在燃烧点检测到67种,在未燃烧点检测到97种和106种。在所有地点捕获频率最高的3种是白尺蠖(Macaria liturata)、平尺蠖(Buphalus pininiaria)和扁尺蠖(Thera obelisata),它们代表了常见的森林几何蛾。我们观察到,与未烧地相比,烧地的物种数量和丰度都有所下降,这可能是由于幼虫的直接死亡。相反,从多样性指数来看,烧毁地的多样性更大。林火破坏了针叶林的原始特征,以针叶林和柳木为食的物种数量减少,并吸引了与干燥生境有关的紫癜、暗色Charissa和rubiginata等物种。尽管野火通常被视为负面的,但它们可能暂时增强同质景观的多样性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Impact of a Forest Fire Event on Moth Assemblages in Western Bohemia, Czech Republic
ABSTRACT Fire has major impact on species diversity in natural ecosystems around the world. The consequences of fires for invertebrates can be immediate, and recovery of species assemblages may be a long-term process. We recorded moth communities from May to November 2019 in a pine forest in Western Bohemia, Czech Republic, where a local fire occurred in April of that year. We used UV light traps at one burned site and two neighboring unburned sites with a similar character as the burned site before the fire event. We analyzed moth assemblages using several species diversity indices – index of dominance, Shannon-Wiener index and Shannon-Wiener evenness, Simpson index, and Chao1 nonparametric estimation. We detected 67 species at the burned site, and 97 and 106 at the unburned sites. The three most frequently trapped species at all sites were Macaria liturata, Buphalus piniaria and Thera obeliscata, representing common forest geometrid moths. We observed a decline in species number and abundance at the burned site compared to the unburned sites, probably due to the direct mortality of larvae. On the contrary, the burned site was more diverse according to the diversity indices. The fire disrupted the original character of the coniferous forest, which was proved by a decline of species feeding on conifers and Vaccinium spp. The burned site attracted species associated with dry habitats such as Eublemma purpurina, Charissa obscurata and Scopula rubiginata. Even though wildfires are viewed negatively in general, they might temporarily enhance diversity in a homogeneous landscape.
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来源期刊
Polish Journal of Ecology
Polish Journal of Ecology 环境科学-生态学
CiteScore
1.10
自引率
0.00%
发文量
9
审稿时长
18-36 weeks
期刊介绍: POLISH JOURNAL OF ECOLOGY (formerly Ekologia polska) publishes original scientific research papers dealing with all aspects of ecology: both fundamental and applied, physiological ecology, evolutionary ecology, ecology of population, community, ecosystem, landscape as well as global ecology. There is no bias regarding taxons, ecosystems or geographical regions.
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