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首页> 外文期刊>Journal of Insect Conservation >Conflict between insect conservation and public safety: the case study of a saproxylic beetle (Osmoderma eremita) in urban parks
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Conflict between insect conservation and public safety: the case study of a saproxylic beetle (Osmoderma eremita) in urban parks

机译：昆虫保护与公共安全之间的冲突：城市公园中一种圣人甲虫（Osmoderma eremita）的案例研究

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摘要

Urban parks can harbour small populations of saproxylic insects of high conservation concern, such as Osmoderma eremita and other rare beetles. These areas often host old trees which have become very uncommon in rural areas where they are threatened by commercial forestry management procedures based on frequent tree cutting. Nevertheless, old trees of urban parks may represent a hazard for public safety and are sometimes cut by management authorities. The aim of this work was to assess the loss of reproductive sites for saproxylic beetles of the Scarabaeidae, Lucanidae and Cerambycidae, when felling plans are adopted according to a Visual Tree Assessment Procedure (VTA), in a Mediterranean urban park. On July-August 2004, 1,247 holm oaks were surveyed within the border of an urban park of Rome (Villa Borghese). The occurrence of saproxylic beetles (i.e. the presence of frass, living insects or their remains) was verified in 66 old holm oaks, 41% of which were doomed to cutting by VTA. Eleven of these trees (41% of the trees doomed to be cut) held fragments of adults and sometimes living larvae of Osmoderma eremita, and four of them (36%) were included in the felling plan. The presence of Osmoderma eremita in tree holes was more frequent in deep cavities. The presence of frass in the cavities was positively associated with tree height and a high degree of damage at the root collar and negatively with the presence of hole-nesting birds.
机译：城市公园可容纳高度关注保护的少量鼠尾草昆虫，例如Osmoderma eremita和其他罕见的甲虫。这些地区经常寄居着古老的树木，在农村地区，这些树木受到频繁采伐的商业林业管理程序的威胁，因此在农村地区变得非常罕见。但是，城市公园的老树可能对公共安全构成危害，有时会被管理部门砍伐。这项工作的目的是评估在地中海城市公园中根据视觉树评估程序（VTA）采取采伐计划时，甲虫科，夜蛾科和天牛科的sa甲虫繁殖场所的损失。 2004年7月至8月，在罗马（Villa Borghese）城市公园的边界内对1247块圣栎进行了调查。在66块老圣栎中证实了圣人甲虫的存在（即存在ass，活虫或它们的残骸），其中41％注定要通过VTA砍伐。这些树木中有11棵（注定要砍伐的树木的41％）保存着成年碎片，有时还带有Osmoderma eremita的活幼虫，其中4棵（36％）已包括在砍伐计划中。在深洞中，在树洞中存在Osmoderma eremita更为常见。蛀孔的存在与树高和根颈处的高度损害呈正相关，而与巢状鸟的存在呈负相关。

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