草业科学2025，Vol.42Issue(8)：1992-2002,11.DOI:10.11829/j.issn.1001-0629.2025-0069
宁夏草原拟步甲优势种对土壤及气候因子的响应
Responses of dominant Tenebrionoidea species in the Ningxia steppe to soil and climate factors
摘要
Abstract
To explore the dominant species and their responses to soil and climate factors across four steppe types in Ningxia,we investigated species diversity across 32 plots,based on the steppe type distribution in the region.We analyzed species composition,diversity differences,and their responses to soil and climate variables.A total of 47 Tenebrionoidea species were recorded.In the temperate meadow steppe,the dominant species were Scytosoma pygmaeum,Anatolica potanini,and A.ebenina.The temperate steppe was dominated by S.opaca,Blaps femoralis,and B.femoralis medusula.In the temperate desert steppe,Microdera kraatzi and B.femoralis were dominant,while the temperate steppe desert was dominated by Cyphogenia chinensis,M.kraatzi,and B.femoralis.In total,eight species were identified as dominant across the four grassland types.Pearson correlation analysis revealed that the abundance of these eight dominant species was correlated with soil and climate factors.Specifically,B.femoralis,A.ebenina,and M.kraatzi showed positive correlations with soil bulk density,soil pH,and ambient temperature,and negative correlations with field water capacity,soil alkali-hydrolyzed nitrogen content,and elevation(P＜0.05).In contrast,S.pygmaeum exhibited a significant positive correlation with soil alkali-hydrolyzed nitrogen and elevation(P＜0.05),and a significant negative correlation with soil bulk density and ambient temperature(P＜0.05).Blaps femoralis and M.kraatzi were the most dominant species in the Ningxia grasslands.Their abundances were linearly correlated with soil and climate factors.Specifically,both species were positively correlated with soil bulk density,soil pH,and ambient temperature(P＜0.05),and negatively correlated with field water capacity,soil alkali-hydrolyzed nitrogen levels,elevation,and precipitation(P＜0.05).In conclusion,the composition and distribution of dominant species in the Ningxia steppe are significantly affected by soil and climate factors.This study has important implications for biodiversity conservation and the use of dominant species as ecological indicators in grassland ecosystems.关键词
宁夏草原/拟步甲/多样性/优势种/环境因子/相关性/响应Key words
Ningxia steppe/Tenebrionoidea/diversity/dominant species/environmental factor/relevance/response引用本文复制引用
熊昌宇,曹梓渝,王颖,孙伟,石淳,张蓉,魏淑花..宁夏草原拟步甲优势种对土壤及气候因子的响应[J].草业科学,2025,42(8):1992-2002,11.基金项目
国家重点研发计划项目(2022YFD1401104) （2022YFD1401104）
农业高质量发展和生态保护科技创新示范课题项目(NGSB-2021-14-05) （NGSB-2021-14-05）
国家自然科学基金项目(31760705) （31760705）
