img

官方微信

高级检索

中国沙漠 ›› 2024, Vol. 44 ›› Issue (2): 207-219.DOI: 10.7522/j.issn.1000-694X.2023.00103

• • 上一篇    

戈壁荒漠地表节肢动物聚集对降水及温度的响应

任嘉隆1(), 刘继亮2, 王永珍2, 方静2, 冯怡琳3, 高安岭4, 宋嫒霞4, 辛未冬1()   

  1. 1.山西师范大学 地理科学学院,山西 太原 030031
    2.中国科学院西北生态环境资源研究院 临泽内陆河流域研究站,甘肃 兰州 730000
    3.宁夏大学 生态环境学院,宁夏 银川 750021
    4.内蒙古额济纳胡杨林国家级自然保护区管理局,内蒙古 额济纳 735400
  • 收稿日期:2023-08-22 修回日期:2023-11-15 出版日期:2024-03-20 发布日期:2024-03-19
  • 通讯作者: 辛未冬
  • 作者简介:辛未冬(E-mail: xiny-2005@163.com
    任嘉隆(2000—),男,山西长治人,硕士研究生,研究方向为土壤动物生态学。E-mail: rr18735570109@163.com
  • 基金资助:
    甘肃省自然科学基金项目(21JR7RA055);国家自然科学基金项目(41771290)

Response of ground arthropod assemblages to precipitation and temperature changes in the gobi desert

Jialong Ren1(), Jiliang Liu2, Yongzhen Wang2, Jing Fang2, Yilin Feng3, Anling Gao4, Yuanxia Song4, Weidong Xin1()   

  1. 1.College of Geographic Sciences,Shanxi Normal University,Taiyuan 030031,China
    2.Linze Inland River Basin Research Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    3.School of Ecology and Environment,Ningxia University,Yinchuan 750021,China
    4.Inner Mongolia Ejina Populus Euphratica National Nature Reserve Management Bureau,Ejina 735400,Inner Mongolia,China
  • Received:2023-08-22 Revised:2023-11-15 Online:2024-03-20 Published:2024-03-19
  • Contact: Weidong Xin

摘要:

地表节肢动物是荒漠生态系统食物网中的主要类群,降水脉动引发的资源变化会影响地表节肢动物聚集,从而影响荒漠生态系统的结构及功能。本文于2018—2020年1—12月在中国科学院临泽内陆河流域荒漠生态系统长期观测场内利用陷阱法对72个样点进行地表节肢动物样品采集并对小气候进行连续观测,系统探讨了降水及温度年和月波动影响下戈壁荒漠地表节肢动物及主要科的空间分布格局。结果表明:(1) 2018—2020年共捕获地表节肢动物24 834头45科,优势科由拟步甲科、象甲科、叶甲科、平腹蛛科、粪金龟科和蚁科组成。(2) Moran's I指数分析结果表明戈壁荒漠地表节肢动物个体数在16 m的空间尺度上多为显著正相关,而在56~96 m的空间尺度上为显著的负相关性;半方差函数和普通克里格插值表明在特定的空间尺度内地表节肢动物科会形成集群,在不同时间尺度上表现为强空间异质性特征。(3) 象甲科、粪金龟科、平腹蛛科和蚁科空间分异多由结构性因素控制,拟步甲科和叶甲科空间分异由结构性因素和随机性因素共同调控。(4) 年降水量增加对拟步甲科、象甲科、叶甲科和粪金龟科的空间群落聚集具有正相关影响,而对平腹蛛科和蚁科的群落聚集则有负相关影响,温度与地表节肢动物空间聚集和扩展存在正相关关系。总之,降水变化改变了戈壁荒漠地表节肢动物对灌木及蚁穴塑造的微生境的响应模式及依赖程度,进而影响了不同年份地表节肢动物在空间上的聚集变化。

关键词: 戈壁荒漠, 降水变化, 地表节肢动物聚集, 群落动态, 空间格局

Abstract:

Ground arthropods are the main group in the food web of gobi desert ecosystem,the changes of resources caused by precipitation fluctuation will affect the aggregation of ground arthropods, thus affecting the structure and function of desert ecosystem.In this article, we conducted a series of microclimate observations using the trap method at a long-term observation site of the desert ecosystem in the Linze Inland River Basin from January to December 2018 to December 2020, as well as the spatial distribution patterns of ground arthropods in the gobi desert under the influence of annual and month of precipitation and temperature changes.The results indicate that: (1) From 2018 to 2020, a total of 24 834 individuals and 45 families of ground arthropods were caught. The dominant families consisted of Tenebrionidae, Curculionidae, Chrysomelidae, Gnaphosidae, Geotrupidae and Formicidae. (2) The results of Moran's I index analysis showed that the number of ground arthropods was positively correlated at the spatial scale of 16 m and negatively correlated at the spatial scale of 56 m to 96 m, the semi-variance function and ordinary Kriger interpolation indicated that the ground arthropod families formed clusters and showed strong spatial heterogeneity at different time scales. (3) The spatial differentiation of Curculionidae, Geotrupidae, Gnaphosidae and Formicidae was mainly controlled by structural factors, while that of Tenebrionidae and Chrysomelidae was controlled by both structural and random factor. (4) The increase of precipitation had a positive correlation to the spatial community aggregation of the Tenebrionidae, Curculionidae, Chrysomelidae, and Geotrupidae, and a negative correlation to the community aggregation of the Gnaphosidae and Formicidae,there was a positive correlation between temperature and spatial aggregation and expansion of ground arthropods.In a word, the change of precipitation changed the response pattern and dependence degree of ground arthropods to the micro-habitat constructed by shrubs and ant nests, and then affected the spatial aggregation of ground arthropods in different years.

Key words: gobi desert, precipitation changes, ground arthropod assemblages, community dynamics, spatial pattern

中图分类号: