生物多样性 ›› 2023, Vol. 31 ›› Issue (11): 23168.  DOI: 10.17520/biods.2023168

• 研究报告: 动物多样性 • 上一篇    下一篇

云南哀牢山国家级自然保护区东坡垂直带蚂蚁物种多样性

赵梦乔1,2, 陈友3, 徐正会1,*(), 王戌勃1, 赵忠良1, 徐文川1, 何宗辉1, 王文华1   

  1. 1.西南林业大学生物多样性保护学院云南省森林灾害预警与控制重点实验室, 昆明 650224
    2.咸阳市勘察测绘院, 陕西咸阳 712000
    3.重庆城市管理职业学院, 重庆 401331
  • 收稿日期:2023-05-25 接受日期:2023-08-24 出版日期:2023-11-20 发布日期:2023-12-09
  • 通讯作者: * E-mail: xuzhenghui1962@163.com
  • 基金资助:
    国家自然科学基金(31860615);国家自然科学基金委员会应急管理项目子课题(31750002)

Ant species diversity along the vertical zones of the east slope of Ailao Mountain National Nature Reserve, Yunnan Province

Mengqiao Zhao1,2, You Chen3, Zhenghui Xu1,*(), Xubo Wang1, Zhongliang Zhao1, Wenchuan Xu1, Zonghui He1, Wenhua Wang1   

  1. 1 Key Laboratory of Forest Disaster Warning and Control in Yunnan Province, College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224
    2 Xianyang Institute of Surveying and Mapping, Xianyang, Shaanxi 712000
    3 Chongqing City Management College, Chongqing 401331
  • Received:2023-05-25 Accepted:2023-08-24 Online:2023-11-20 Published:2023-12-09
  • Contact: * E-mail: xuzhenghui1962@163.com

摘要:

哀牢山地处青藏高原、横断山地和云贵高原三大自然地理区域的结合部, 在这样一个特殊的地理气候区域内栖息着怎样的蚂蚁群落? 不同海拔高度引起的气候条件差异导致蚂蚁群落结构和多样性产生了怎样的差异? 为了揭示这一科学问题, 本文采用样带法、样地调查法和多样性指标法研究了哀牢山国家级自然保护区东坡垂直带的蚂蚁物种多样性。在哀牢山国家级自然保护区东坡垂直带记录蚂蚁7亚科47属150种, 喜马毛蚁(Lasius himalayanus)是蚂蚁群落的优势种, 同时发现常见种2个, 较常见种20个, 较稀有种55个, 稀有种72个, 稀有种占了物种总数的48.00%。东坡4个垂直带蚂蚁群落的Shannon-Wiener多样性指数顺序为: 中南段 > 北段 > 中北段 > 南段。相关性分析显示蚂蚁的物种数和多样性指数与海拔存在显著负相关性, 物种数、个体密度和多样性指数与乔木郁闭度存在显著负相关性。蚂蚁群落在海拔梯度间表现出高度的不相似性和强烈的更替模式, 不同垂直带间的蚂蚁群落同样表现出高度的不相似性和强烈的更替格局。哀牢山自然保护区东坡各垂直带蚂蚁物种数、个体密度、多样性指数总体上随海拔升高而降低, 主要受海拔和气温因素制约; 这些指标普遍出现多域效应现象, 有时出现中域效应现象, 说明不同海拔高度上栖息着适应了不同气候类型的物种聚集群, 同时受到人类干扰和干热河谷气候的影响。哀牢山自然保护区东坡蚂蚁物种丰富度低于西坡, 主要受湿度因素影响。从相似性系数看, 栖息于保护区不同生境的蚂蚁群落间分化明显, 具有不同的生态功能和保护价值。

关键词: 蚁科, 群落, 生物多样性, 自然保护区, 垂直带

Abstract

Aims: Ailao Mountain is located at the intersection of three major geographical regions, Qinghai-Tibet Plateau, Hengduan Mountains and Yunnan-Guizhou Plateau. This study aims to explore the diversity of ant communities that reside within this distinctive region and to understand how variations in ant community structure and diversity are influenced by climate difference arising from altitude.

Methods: To address these aims, we surveyed ant species diversity along the elevational gradients on the east slope of Ailao Mountain National Nature Reserve by using transect and plot sampling and diversity index methods.

Results: In total, 150 species from 47 genera and 7 subfamilies of Formicidae were identified. Lasius himalayanus emerged as the dominant species in the ant community, accompanied by two common species, 20 relatively common species, 55 relatively rare species and 72 rare species. The rare species constituted 48% of the total species surveyed. The sequence of Shannon-Wiener diversity index of ant communities across the four vertical zones on the east slope are as follows: middle-south zone > north zone > middle-north zone > south zone.

Conclusion Ant species numbers, diversity indexes, and individual densities are significantly negatively correlated with altitude, implying these indexes are mainly controlled by altitude and air temperature. Concurrently, the main indexes were found to frequently express multi-domain effect phenomenon and occasionally exhibit mid-domain effect phenomenon, indicating that ant species assemblies have adapted to the various climate types from different altitudes on the slope. Moreover, human activity and the dry-hot valley climate have disrupted the ant communities, and the ant species richness on the east slope of Ailao Mountain National Nature Reserve was lower than the west slope due to humidity. According to similarity coefficients, ant communities residing in different habitats of the nature reserve were significantly differentiated and possess various ecological functions and protection value.

Key words: Formicidae, community, biodiversity, nature reserve, vertical zone