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Beetles (Coleoptera) occurring in decaying birch (Betula spp.) wood in the Kampinos National Park

机译:甲壳虫(鞘翅目)出现在坎皮诺斯国家公园的桦木(Betula spp。)

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The composition and structure of beetle clusters living in rotting birch wood in Kampinos National Park was investigated. Photoeclectors were used to remove beetles from collected wood samples. Ten different research plots, each corresponding to a different forest type, were sampled every month over a 1-year period. A collection of 3256 beetles from 37 families comprising 206 species was amassed during the study. The collected beetles were divided into trophic families, species rareness, and constancy and site fidelity classes. At the more fertile sites, species only able to live on highly-decayed wood were collected (F3), also species facultatively able to live on either dying trees or decaying wood (F1), species that do not live on decayed wood (F0) and other rare species. Trophic group of carnivores (Z) provided most species on more fertile sites. At coniferous forest sites, as well as mixed deciduous forest sites, most individuals collected belonged to mycophagous and myxomycophagous trophic groups. At the other sites, the largest group of collected individuals was zoophagous. The number of rare species was positively related to site fertility. The average number of species increased in accordance with increasing site fertility, however this trend was only statistically significant when applied to moist coniferous forest (Bw) and moist mixed broadleaved forest (LMw) sites. The study revealed differences in the composition and structure of beetle clusters from different forest types. These differences were probably not directly related to site type, but more likely to the form of nature conservation imposed on a particular area and the potential number of decayed deciduous tree trunks. Two different clusters of saproxylic Coleoptera related to birch rot were distinguished: the first includes strictly protected deciduous forest types, the second contains the remaining forest types.
机译:研究了坎皮诺斯国家公园中腐烂的桦木中的甲虫簇的组成和结构。使用光电导体从收集的木材样品中除去甲虫。在1年的时间里,每个月都会取样10个不同的研究地块,每个地块都对应于不同的森林类型。在研究过程中,收集了来自37个科的206种物种的3256株甲虫。收集的甲虫分为营养族,稀有种,恒定性和部位保真度等级。在更富饶的地方,收集了只能生活在高度腐朽的木材上的物种(F3),也有能够生存在垂死的树木或腐烂的木材上的物种(F1),不生活在腐朽的木材上的物种(F0)和其他稀有物种。食肉动物的营养群(Z)在更肥沃的地方提供了大多数物种。在针叶林地点以及落叶林混合地点,收集的大多数个体都属于食食性和食黏性营养族。在其他地点,收集到的个体最大的群体是食虫动物。稀有物种的数量与地点的肥力正相关。物种平均数量随场所肥力的增加而增加,但是,仅当应用于潮湿的针叶林(Bw)和潮湿的混合阔叶林(LMw)场所时,这种趋势才具有统计学意义。该研究揭示了不同森林类型的甲虫簇的组成和结构的差异。这些差异可能与站点类型没有直接关系,但更可能与施加在特定区域的自然保护形式以及落叶树干的潜在数量有关。区分了与桦树腐烂有关的两种不同的Sapeloxylic鞘翅目:第一个包括严格保护的落叶林类型,第二个包含其余的森林类型。

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