干旱绿洲区枸杞林地面节肢动物功能群结构季节分布特征
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1.宁夏大学生态环境学院;2.西北土地退化与生态恢复国家重点实验室培育基地;3.西北退化生态系统恢复与重建教育部重点实验室;4.中卫市自然资源局治沙林场

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宁夏重点研发计划项目(2021BEG03007)、国家自然科学基金(41867005)、宁夏青年拔尖人才培养工程项目(RQ0010)*通信作者Corresponding author. E-mail: [nxuliu2012@126.com] ,2,3*,常海涛1,2,3,唐希明4


Seasonal distribution of functional groups of ground-active arthropods in Lycium. barbarum plantations in arid oasis region.
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1.College of Ecology and Environments, Ningxia University,;2.College of Ecology and Environments, Ningxia University, Yinchuan 750021, Ningxia, China;3.College of Ecology and Environments, Ningxia University;4.Breeding Base for Sate Key Lab. of Land Degradation and Ecological Restoration in Northwestern China;5.Key Lab. for Restoration and Reconstruction of Degraded Ecosystems in Northwestern China of Ministry of Education

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    摘要:

    为了解枸杞林地面节肢动物功能群结构季节分布特征,以宁夏绿洲枸杞林为研究对象,于2018年的春、夏、秋季节,采用陷阱诱捕法,调查了地面节肢动物功能群季节分布特征及其与环境因子之间的关系。结果显示:(1)枸杞林地地面节肢动物功能群包括植食性、捕食性、腐食性和杂食性动物,个体数分别占6.31%、86.75%、2.01%和4.89%,其中以捕食性动物为主。(2)植食性地面节肢动物个体数和生物量表现为春季显著高于秋季,夏季居中;类群数表现为夏季显著高于秋季,春季居中。捕食性地面节肢动物生物量表现为夏季和秋季显著高于春季;个体数和类群数在不同季节间均无显著差异。腐食性地面节肢动物个体数、生物量和类群数在不同季节间均无显著差异。杂食性地面节肢动物个体数和类群数表现为春季显著高于夏季,秋季居中;生物量在不同季节间均无显著差异。(3)相关分析表明,捕食性地面节肢动物个体数与土壤含水量呈正相关关系,腐食性地面节肢动物个体数与土壤全磷呈正相关关系,杂食性地面节肢动物与土壤全氮呈正相关关系。但植食性地面节肢动物个体数则与土壤含水量呈负相关关系,杂食性地面节肢动物个体数与土壤温度和土壤全碳呈负相关关系。(4)pRDA分析表明,土壤含水量是影响地面节肢动物功能群结构季节分布的主要环境因子。结论:随着季节更替,宁夏干旱绿洲区枸杞林地面节肢动物的功能群组成差异较大,功能多样性差异较小。说明每个功能群的个体数和类群数对季节变化敏感,但功能多样性较稳定。

    Abstract:

    We examined the seasonal distribution of the functional groups of ground-active arthropods by pitfall traps in Lycium. barbarum plantations in oasis of Ningxia in spring, summer and autumn of 2018. The relationship between the abundance and richness of functional groups and environmental factors were examined. All the results showed that: (1) The functional groups of ground-active arthropods of L. barbarum plantations included phytophagous, predatory, sacrificial and omnivorous animals, accounting for 6.31%, 86.75%, 2.01% and 4.86%, respectively. It was suggested that the predatory animals dominated the ground-active arthropod communities. (2) The abundance and biomass of phytophagous arthropods were significantly higher in spring than in autumn, with the intermediate values observed in summer; the richness of phytophagous arthropods was significantly higher in summer than in autumn, with the intermediate values observed in spring. The biomass of predatory arthropods was significantly higher in summer and autumn than in spring; whereas there was no significantly different in the abundance and richness of predatory arthropods between the three seasons. Likewise, there was no significant difference in the abundance, biomass and richness of sacrificial arthropods between different seasons. Nevertheless, the abundance and richness of omnivorous arthropods was significantly higher in spring than in summer, with the intermediate values observed in autumn; whereas there was no significant difference in the biomass of omnivorous arthropods between different seasons. (3) There was positive correlation of the abundance of predatory arthropods with soil moisture; there was positive correlation of abundance of sacrificial arthropods with soil total phosphorus, and there was positive correlation of abundance of omnivorous arthropods with soil total nitrogen. However, there was negative correlation of abundance of phytophagous arthropods with soil moisture, and there was negative correlation of abundance of omnivorous arthropods with soil temperature and soil total carbon. (4) The partial RDA results showed that soil moisture were the key factors forcing the distribution of functional groups of ground-active arthropods between seasons. In conclusion, there was unique different distribution of functional groups of ground-active arthropods in L. barbarum plantations along with the seasonal timing in arid oasis of Ningxia province, and the difference of functional diversity is little. It was suggested that there was a sensitivity of abundance and richness distribution of each functional group, whereas there was a relatively stable distribution of functional diversity across seasons.

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白燕娇,李义学,刘任涛,常海涛,唐希明.干旱绿洲区枸杞林地面节肢动物功能群结构季节分布特征.生态学报,,(). http://dx. doi. org/10.5846/stxb202104271110

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