Effects of dispersed and aggregated retention-cuttings and differently sized clear-cuttings in conifer plantations on necrophagous silphid and dung beetle assemblages
Effects of dispersed and aggregated retention-cuttings and differently sized clear-cuttings in conifer plantations on necrophagous silphid and dung beetle assemblages
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针叶林人工林中分散和聚集的保留枝条以及不同大小的皆伐对食尸虫和粪甲虫群落的影响
DOI：
10.1007/s10841-022-00386-3
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发表时间：
2022
影响因子：
1.9
通讯作者：
Sato Shigeho
中科院分区：
文献类型：
--
作者：
Ueda Akira;Ito Hiroki;Sato Shigeho
据认为，保留森林和小型皆伐可部分减轻伐木的影响。为了评估这两种采伐方法的影响，在北方日本北海道成熟的库页岛冷杉种植园林中进行了多种采伐作业。林分采伐采用以下方法：大（100株/公顷）、中（50株/公顷）或小（10株/公顷）数量的自然再生阔叶树的分散保留; 60 × 60 m的聚集保留;四边形小尺寸（约1公顷）皆伐;和全皆伐。我们收集了食尸性Silphid和蜣螂从这些立场和未采伐的天然阔叶林和种植园林使用腐肉诱饵陷阱。所有的伐木作业都明显影响了甲虫的聚集。0.36公顷的未采伐的森林斑块下聚集保留没有作为避难所的森林物种，因为他们的组合几乎相同的森林斑块外，在整个皆伐。然而，森林物种的总丰度，特别是，两个优势森林物种的丰度显着，正相关的树干断面积保留在分散的保留网站的树木。森林物种的总多度在小型皆伐区明显高于全皆伐区。一个占主导地位的开阔地物种是丰富的采伐区，无论类型的伐木作业。因此，在本发明中，我们的结论是，分散保留和小尺寸的皆伐是保护甲虫的有益收获方法，因为与整个皆伐相比，它们保护了森林物种，并保护了开阔地物种和整个皆伐的栖息地，扦插。昆虫保护的意义我们的研究结果表明，需要大面积的未采伐森林斑块来保护森林食尸性蚜虫和蜣螂的栖息地，大多数物种都擅长飞行散留林留木密度越高，皆伐面积越小，对树种的保护效果越好。研究结果为采伐迹地飞行昆虫物种保护措施的选择和设计提供了参考。
Retention forestry and small-sized clear-cuttings are thought to partially mitigate the impacts of logging. To evaluate the impacts of these two harvesting methods, a variety of logging operations were conducted in mature Sakhalin fir plantation forests in Hokkaido, northern Japan. The stands were logged with the following approaches: dispersed retention of naturally regenerated broad-leaved trees in large (100 trees/ha), medium (50), or small (10) amounts; 60 × 60 m aggregated retention; quadrilateral small-sized (ca 1-ha) clear-cutting; and whole clear-cutting. We collected necrophagous silphid and dung beetles from these stands and from unharvested natural broad-leaved forests and plantation forests using carrion-baited pitfall traps. All logging operations clearly affected the beetle assemblages. The 0.36 ha unharvested forest patches under aggregated retention did not act as refugia for forest species because their assemblages were almost identical to those outside the forest patches and in the whole clear-cuts. However, the total abundance of forest species and, specifically, the abundances of two dominant forest species were significantly and positively related to the trunk basal area of retained trees in the dispersed retention sites. The total abundance of forest species was significantly higher in the small clear-cuts than in the whole clear-cuts. A dominant open-land species was abundant in the harvested areas irrespective of the type of logging operation. Thus, we concluded that dispersed retention and small-sized clear-cuttings were beneficial harvesting methods for the beetle conservation because they conserved forest species compared to whole clear-cuttings and preserved the habitats of open-land species as well as whole clear-cuttings.Implications for insect conservationOur results indicated that large areas of unharvested forest patches are needed to conserve the habitat of forest necrophagous silphid and dung beetles, most species of which are adept at flying. Our results also indicated that the higher density of retained trees in dispersed retention forestry and the smaller areas of clear-cuttings were better for conserving forest species. Our findings provide useful information for selecting methods and designs of logging practices for species protection of flying insects in logged areas.
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日本北部北海道大学中川实验林 Kamiotoineppu 地面甲虫和腐肉甲虫的动物区系组成，以及有关相关问题的一些注释
DOI：
--
发表时间：
1975
期刊：
--
影响因子：
--
作者：
H. Katakura;H. Fukuda
通讯作者：
H. Fukuda
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影响因子：
0.9
作者：
Seizi Suzuki;N. Kobayashi;Tetsuya Kato;H. Katakura
通讯作者：
H. Katakura
影响因子：
5
作者：
Baker, Susan C.;Halpern, Charles B.;Strengbom, Joachim
通讯作者：
Strengbom, Joachim
清晰的保留树群：它们是否构成蜘蛛和步甲动物的“救生艇”？
影响因子：
3.7
作者：
K. Matveinen;J. Niemelä;H. Rita;R. O’Hara
通讯作者：
R. O’Hara
影响因子：
2
作者：
Ikeda, Hiroshi;Kubota, Kohei;Abe, Toshio
通讯作者：
Abe, Toshio