东北阔叶红松林地表葬甲群落多样性及其空间变异特征
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国家自然科学基金项目(42271051,41871042);宁波市自然科学基金项目(2021J129);黑龙江省自然科学基金项目(LH2019D018)


Species diversity and its spatial variability of ground-dwelling carrion beetle (Coleoptera, Silphidae) community in broad-leaved Korean pine forests in Northeast China
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    摘要:

    为了探明我国东北阔叶红松(Pinus koraiensis)林地表葬甲多样性及其空间变异特征,在胜山、丰林、凉水和长白山的4个大型森林动态监测样地内,通过布置900个陷阱调查了36 hm2范围内的地表葬甲群落基本特征。基于群落物种数量、个体数量和总体长,分析了地表葬甲多样性及其空间变异性。结果表明:(1)东北阔叶红松林区域物种库包含12个葬甲物种,密度为0.018只/m2,总平均体长达0.32 mm/m2。北方花葬甲(Nicrophorus tenuipes)是东北阔叶红松林内的广布物种,黑葬甲(Nicrophorus concolor)等五个物种具有明显的生境偏好,仅存在于单个局域物种库内。(2)物种数量、个体数量和总体长在胜山、丰林、凉水和长白山样地存在明显差异,其中纬度较低的局域物种库(凉水、长白山)可维持更高的物种多样性,纬度最高的局域物种库(胜山)维持较低的物种多样性。(3)地表葬甲群落在胜山和丰林样地存在显著的空间自相关性,在凉水和长白山样地则不显著。(4)葬甲群落具有较明显的空间异质性,长白山样地的空间变异性与其他样地差异较大,这些空间变异性主要受确定性和/或非确定性过程调控,但二者的作用强度在4个样地表现不同。本研究表明东北阔叶红松林内,地表葬甲的多样性和空间变异性在不同纬度存在差异,该研究为地带性顶极植被-阔叶红松林内土壤动物多样性维持和保护提供了理论依据和数据支撑。

    Abstract:

    In order to explore the diversity and its spatial variability of ground beetles in broad-leaved Korean pine forests in Northeast China, this study investigated the ground-dwelling carrion beetle communities within 36 hm2 by 900 pitfall traps in four large forest dynamic monitoring plots of broad-leaved Korean pine forests (i.e., Shengshan, Fenglin, Liangshui and Changbaishan) in Northeast China. Based on the indices of species number, individual number and total body length, the diversity and its spatial variability of the carrion beetle communities were analyzed. The results showed that:(1) There were twelve species of carrion beetles in the regional species pool of broad-leaved Korean pine forests in Northeast China, with a density of 0.018 individuals/m2 and an average body length of 0.32 mm/m2. Nicrophorus tenuipes was the widespread species in the broad-leaved Korean pine forests in Northeast China which existed in all plots with a relatively large individual number. Five species, that is Nicrophorus concolor, Silpha obscura, Calosilpha brunnicollis, Oiceoptoma thoracicum and Dendroxena sexcarinata, had obvious habitat preference and only existed in a single local species pool. (2) The indices of species number, individual number and total body length were significantly different among Shengshan, Fenglin, Liangshui and Changbaishan broad-leaved Korean pine forest plots, indicating that the relatively warm local species pool (Liangshui and Changbaishan) could maintain higher species diversity, while the coldest local species pool (Shengshan) only maintained low species diversity. (3) There were significantly spatial autocorrelations of species number, individual number and total body length of the carrion beetle communities in both Shengshan and Fenglin plots with relatively higher latitudes. However, the indices above mentioned did not showed significantly spatial autocorrelations in the Liangshui and Changbaishan plots with relatively lower latitudes. (4) Carrion beetle communities showed significantly spatial variabilities. The spatial variability of carrion beetle community in the Changbaishan plot with the lowest latitude and highest altitude was significantly different from other plots. These spatial variabilities of carrion beetle communities were mainly regulated by deterministic and/or non-deterministic processes based on the results of semivariogram parameters, but the relative roles of the deterministic and non-deterministic processes were different in the four plots. The results of this study showed that the diversity and spatial variability of ground-dwelling carrion beetle communities were different at different latitudes in the broad-leaved Korean pine forests in Northeast China. This study provided theoretical basis and data support for the maintenance and protection of soil fauna diversity in the zonal climax vegetation, that is broad-leaved Korean pine forests.

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高梅香,叶妍妍,孙佳欢,宋国华,金光泽,原作强,王绪高,张卫国,周利军.东北阔叶红松林地表葬甲群落多样性及其空间变异特征.生态学报,2023,43(18):7536~7552

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