帽儿山红松人工林鞘翅目成虫群落小尺度空间异质性变化特征

发布时间：2018-12-05 21:54

【摘要】：空间异质性是群落空间格局形成的基础,也是物种共存的重要前提。基于地统计空间分析方法,研究20 m×20 m空间尺度上帽儿山红松人工林鞘翅目成虫群落及物种的空间自相关性及异质性分布格局。结果显示:5次调查共捕获鞘翅目成虫10科、42种、2721只个体,群落组成具有中等或较强的空间变异性和明显的时间变异性;Moran's I系数表明群落及部分物种具有显著的空间自相关性,各调查月份接近甚至超过一半的物种不存在空间自相关性;群落及部分物种表现为异质性特征并在特定空间尺度内形成集群,且这种空间分异多由结构性因素或结构性因素和随机性因素共同调控;物种之间表现为具有复杂正的或负的空间作用关系,这种空间关联性的形成主要是结构性因素或随机性因素单一调控的结果,但简单Mantel检验并未发现物种之间存在显著的空间关联性;群落的空间格局梯度分布特征较明显,随着季节的变化(夏天到秋天)聚集物种数量的斑块复杂程度降低。本文旨在揭示鞘翅目成虫空间异质性的变化特征,为鞘翅目成虫群落物种构建机制研究奠定基础。
[Abstract]:Spatial heterogeneity is the foundation of the formation of community spatial pattern and the important premise of species coexistence. Based on the method of geostatistical spatial analysis, the spatial autocorrelation and heterogeneity distribution pattern of the adult community and species of Coleoptera in Pinus koraiensis plantation were studied on the spatial scale of 20 m 脳 20 m. The results showed that 10 families, 42 species and 2721 individuals of Coleoptera adults were captured in 5 surveys. The community composition showed moderate or strong spatial variability and obvious temporal variability. The Moran's I coefficient showed that there was significant spatial autocorrelation between community and some species, and there was no spatial autocorrelation in nearly or more than half of the species surveyed in each month. The community and some species showed heterogeneity and formed clusters on a specific spatial scale, and the spatial differentiation was mainly regulated by structural factors or structural factors and randomness factors. There are complex positive or negative spatial relationships among species, and the formation of this spatial correlation is mainly the result of single regulation of structural or random factors. But simple Mantel test did not find significant spatial correlation among species. The spatial pattern gradient distribution of the community was obvious, and the patch complexity of the number of clustered species decreased with the seasonal variation (summer to autumn). This paper aims to reveal the characteristics of spatial heterogeneity of Coleoptera adults and lay a foundation for the study of species construction mechanism of Coleoptera adult communities.
【作者单位】：哈尔滨师范大学地理科学学院;黑龙江省普通高等学校地理环境遥感监测重点实验室;
【基金】：国家自然科学基金项目(41471037,41101049,41371072,41430857) 黑龙江省普通本科高等学校青年创新人才培养计划(UNPYSCT-2015054) 哈尔滨师范大学青年学术骨干资助计划项目(KGB201204);哈尔滨师范大学硕士研究生创新科研项目(HSDSSCX2015-10)
【分类号】：S718.7

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