| 刘霞，许国莲，徐正会，张翔，李晓艳，刘兰兰，钱昱含,2021,喜马拉雅山错那段不同海拔梯度蚂蚁多样性[J].环境昆虫学报,(3):584-593 |
| 喜马拉雅山错那段不同海拔梯度蚂蚁多样性 |
| Diversity of ants along an elevational gradient at Cona section of Mt. Himalaya |
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| DOI： |
| 中文关键词: 蚁科 多样性 垂直带 喜马拉雅山 |
| 英文关键词:Formicidae diversity vertical zones Himalaya |
| 基金项目:国家自然科学基金（31860166, 31860615）；国家自然科学基金委员会应急管理项目子课题（31750002）；国家科学技术部科技基础性工作专项重点项目子课题（2015FY210300）；西南林业大学博士科研启动基金（111405） |
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| 中文摘要: |
| 为了揭示喜马拉雅山不同海拔梯度蚂蚁的多样性规律，采用样地调查法研究了喜马拉雅山错那段北坡、南坡和山间谷地的蚂蚁群落。共采集蚂蚁标本7 516头，隶属于2亚科、5属、7种。利用EstimateS 9.1.0程序对该地区蚂蚁物种丰富度进行估计并绘制物种累计曲线，结果表明错那段的蚂蚁物种实际观察值等于或接近该地区蚂蚁丰富度的估计值。多样性分析显示，错那段3个垂直带蚂蚁物种数目、Shannon-Wiener多样性指数和Fisher α指数顺序为北坡>山间谷地>南坡，优势度指数顺序为北坡<山间谷地<南坡，个体密度顺序为北坡>南坡>山间谷地；在各垂直带上蚂蚁群落物种数目、个体密度、多样性指数总体随海拔升高呈现垂直带中下部较高，垂直带上部较低；群落各项指标更多的表现出“多域效应”现象，降水和海拔对蚂蚁物种丰富度和多样性起决定作用，凋落物的质量和坡度有重要影响。相关性分析发现错那段蚂蚁物种多样性指数与草本盖度极相关，优势度指数与灌木盖度相关性显著;群落相似性分析表明植被类型和海拔高差对蚂蚁群落间相似性有重要作用。 |
| 英文摘要: |
| In order to reveal ant diversity law along an elevational gradient of Mt. Himalaya, ant communities of north slope, south slope and mountain valley at Cona section were investigated by sample-plot method. Totally 7 516 individuals were observed, and 7 species belonging to 2 subfamily and 5 genera of Formicidae were recognized. Ant species richness was estimated with the help of EstimateS 9.1.0 software and species accumulation curves were drawn, it showed that observed and estimated numbers of species were very similar. Diversity analysis showed that the sequences of the ant species richness, Shannon-Wiener diversity index and Fisher α index on the 3 vertical zones were: North slope>mountain valley>south slope, the sequence of dominance index was: North slopesouth slope >mountain valley. With the increase of the altitude, the species numbers, individual densities and diversity indices of ant communities in 3 vertical zones were generally higher on the lower and middle parts of vertical zones and lower on the upper part of the vertical zones. The indicators of ant communities commonly expressed “Multi-Domain Effect” phenomenon. That was to say, the species richness and diversity of ants were affected by rainfall, altitude, litter quality and land slope have remarkable effect to them. The correlation analysis found that the diversity index was highly correlated with the herb coverage, while the dominance index was significantly correlated with the shrub coverage. Community similarity analysis showed that vegetation types and altitude difference played an important role in ant community similarity. |
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