Diversity and composition of carabids during a forestry cycle
Diversity and composition of carabids during a forestry cycle
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DOI：
10.1023/a:1021289509500
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发表时间：
2003-01-01
影响因子：
3.4
通讯作者：
Elek, Z
中科院分区：
文献类型：
--
作者：
Magura, T;Tóthmérész, B;Elek, Z
对步甲类(步甲科，鞘翅目)进行了2年的研究，以探索其多样性和组成在匈牙利山脉的一个森林周期中的变化。当地的山毛榉森林被砍伐得一干二净，重新种植了挪威云杉。采用陷阱诱捕法对新植(5年生)、幼龄(15年生)、中年(30年生)和老云杉(50年生)云杉人工林进行了研究。结果表明，山毛榉人工林的步甲类物种丰富度明显低于山毛榉林。山毛榉林物种组成均一。15-30年生人工林的β多样性也很低，随着年龄的增长略有增加。5年生人工林物种组成的异质性较高，反映了幼龄人工林的斑块性。组成变化的主要趋势如下。落叶林专家在人工林中的数量显着减少；他们只在山毛榉森林中出现高数量。在新建立的人工林中，具有开阔生境特征的物种数量显著增加。步行动物多样性与12个环境变量的多元线性回归表明，土壤pH值、压实度和凋落物盖度对步行动物多样性有显著影响。
Carabids (Carabidae, Coleoptera) were studied for 2 years to explore changes in their diversity and composition during a forestry cycle in the Hungarian Mountain Range. Native beech forest was clear-cut and replanted with Norway spruce. Recently planted (5 years old), young (15 years old), middle-aged (30 years old) and old spruce plantations (50 years old) were studied using pitfall traps. Our results showed that the species richness of carabids was significantly lower in the plantations than in the native beech forest. Species composition was homogeneous in the beech forest. beta-Diversity of the 15-30 year old plantations was also low, and it increased slightly towards ageing. Heterogeneity of the species composition of the 5 year old plantation was higher than that of the others, which reflected the patchiness of the young plantation. The main tendencies of the compositional changes were as follows. Deciduous forest specialists decreased significantly in abundance in the plantations; they appeared in high abundance only in the beech forest. Species characteristic of open habitats increased remarkably in abundance in the recently established plantation. Multiple linear regression between the diversity of carabids and of 12 environmental variables shows that the pH and compaction of the soil, and the cover of leaf litter had a significant effect in determining diversity of carabids.