ACTA THERIOLOGICA SINICA ›› 2024, Vol. 44 ›› Issue (5): 622-631.DOI: 10.16829/j.slxb.150880

• ORIGINAL PAPERS • Previous Articles     Next Articles

Species diversity and distribution pattern of small mammals along an elevation gradient in the middle and low mountains of Changqing National Nature Reserve

NIE Haijuan1, ZHANG Yazu2, YAN Xiaodong2, BU Shuhai3, MA Youjun2, ZHENG Xueli1   

  1. 1 College of Forestry, Northwest A&F University, Yangling 712100, China;
    2 Management Bureau of Shaanxi Changqing National Nature Reserve, Hantai 723000, China;
    3 College of Life Science, Northwest A&F University, Yangling 712100, China
  • Received:2023-11-20 Revised:2024-01-29 Online:2024-09-30 Published:2024-09-30

长青国家级自然保护区中低山小型兽类物种多样性垂直分布格局

聂海娟1, 张亚祖2, 闫晓东2, 卜书海3, 麻友俊2, 郑雪莉1   

  1. 1 西北农林科技大学林学院, 杨凌 712100;
    2 陕西长青国家级自然保护区管理局, 汉台 723000;
    3 西北农林科技大学生命学院, 杨凌 712100
  • 通讯作者: 郑雪莉,E-mail:zhxueli2008@126.com
  • 作者简介:聂海娟(1999-),女,硕士研究生,主要从事森林保护学研究
  • 基金资助:
    中央财政林业草原生态保护恢复资金生态保护监测项目信息化系统升级维护及专项调查与监测工作项目(XNW-2022104)

Abstract: Vertical distribution patterns across altitudinal gradients are one of the key topics in studying the distribution patterns of species diversity. To understand the vertical distribution pattern of mammals in Changqing National Nature Reserve, this study was carried out from June 2022 to June 2023 along an altitude range of 800 m to 2 423 m. Using the trap-day method and the trap method, 40 sample points were set up in 8 consecutive sites at 200 m intervals from 800 m to 2 423 m above sea level, resulting in a cumulative total of 8 858 trap days and 240 pitfall traps. A total of 357 smallsized species were captured, belonging to 3 orders, 7 families, and 20 species, including 16 species of Rodentia, 2 species of Eulipotyphla, and 2 species of Lagomorpha, including 5 new species recorded to the reserve. Both the Shannon-Wie ner and Simpson indices showed that species diversity was highest in the middle and lower elevations and the small ani mal community consisted mainly of Niviventer huang, Niviventer confucianus, and Apodemus draco. The regression of relative species multiplicity and interpolated corrected richness was fitted to a significant one-dimensional three-curve model (P< 0.01), with peak values (5.55%, 13) occurring around 1 200 m above sea level, indicating that species diver sity was highest at lower elevations. The vertical distribution pattern of small mammal species diversity in the middle and low elevations of Changqing Reserve showed an obvious left-biased center front pattern, suggesting that the reserve should also pay attention to the protection and management of the low-elevation section in the future.

Key words: Changqing National Nature Reserve, Small mammals, Species diversity, Vertical distribution pattern

摘要: 海拔梯度下的垂直分布格局是研究物种多样性分布规律的重要关注点之一。为了解长青国家级自然保护区小型兽类的垂直分布格局,本研究于2022年6月至2023年6月,采用夹日法并辅以陷阱法,按照200 m垂直梯度在海拔800~2 423 m内连续设置8个海拔带40个样点,累积布夹8 858夹次,陷阱240桶次。结果显示:(1)共捕获小型兽类357只,隶属3目7科13属20种,包括啮齿目16种、劳亚食虫目和兔形目各2种,保护区增加5个新纪录物种;(2) Shannon?Wiener和Simpson指数均显示物种多样性在中、低海拔地区最高,小型兽类群落主要由华南针毛鼠(Niviventer huang)、北社鼠(Niviventer confucianus)和中华姬鼠(Apodemus draco)组成;(3)物种相对多度和插值矫正丰富度的回归拟合为显著的一元三次曲线模型(P < 0.01),高峰值(5.55%, 13)出现在海拔1 200 m左右,显示物种多样性在低海拔地区最高。长青保护区中低山小型兽类物种多样性垂直分布格局呈明显的左偏倚中峰模式,提示保护区今后也应重视对低海拔段的保护与管理。

关键词: 长青国家级自然保护区, 小型兽类, 物种多样性, 垂直分布格局

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