| 摘要: |
| 南溪区位于长江上游生态屏障重要区域，区域内的生物资源现状是反映区域生态环境质量的重要依据。2023-01—2024-03，采用样线法对宜宾市南溪区鸟类资源进行调查，结合文献资料，南溪区共有鸟类17目56科224种。其中，国家Ⅰ级重点保护野生鸟类1种，国家Ⅱ级重点保护野生鸟类29种，中国特有种2种。结果显示，在时间维度上，鸟类物种数为春>秋>冬>夏，个体数为冬>秋>春>夏，Shannon-Wiener指数为秋>冬>夏>春，Pielou均匀度指数为夏>秋>冬>春；在空间维度上，鸟类物种数和Shannon-Wiener指数都为森林>湿地>灌草丛>农耕地>居民区，个体数为森林>灌草丛>湿地>农耕地>居民区，Pielou均匀度指数为居民区>森林>湿地>灌草丛>农耕地。结果表明，不同季节、不同生境中的鸟类群落具有一定差异，森林和湿地是维持鸟类多样性最重要的两类生境。因此，在对区域内鸟类开展持续监测的同时，要重点保护区域内的森林和湿地。 |
| 关键词: 南溪区 鸟类 多样性 季节变化 生境 |
| DOI：10.14188/j.ajsh.20240803001 |
| 分类号:Q985.1 |
| 基金项目:国家自然科学基金（32000354）；四川省教育厅重点项目（18ZA0543） |
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| Spatiotemporal characteristics of bird diversity in Nanxi District， Yibin City， Sichuan Province |
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XIE Tingting1, TANG Yongjiang2, LI Bo3, WANG Bin4, WANG Chunhui1, HUANG Xiaolong1, LONG Lu2, WANG Liqin2, ZHAO Cheng2
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1.Changjiang Basin Ecology and Environment Monitoring and Scientific Research Center， Changjiang Basin Ecology and Environment Administration， Ministry of Ecology and Environment， Wuhan 430010， Hubei， China;2.Yibin Key Laboratory of Zoological Diversity and Ecological Conservation， Yibin University， Yibin 644007， Sichuan， China;3.Sichuan Environmental Monitoring Center， Chengdu 610091， Sichuan， China;4.Key Laboratory of Southwest China Wildlife Resources Conservation， Ministry of Education， China West Normal University， Nanchong637009， Sichuan， China
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| Abstract: |
| Nanxi District is located in the key ecological barrier area in the upper reaches of the Yangtze River， and its current situation of biological resources is an important basis for reflecting the quality of regional ecological environment. From January 2023 to March 2024， a field survey targeting at bird diversity was conducted in Nanxi District using line transect method. In total， combined with literature data， we recorded 224 bird species belonging to 56 families and 17 orders in Nanxi. The results showed that there are 1 and 29 species of class Ⅰ and Ⅱ nationally key protected wild birds， respectively， as well as 2 species endemic to China. In the temporal dimension， the number of bird species is spring>autumn>winter>summer， the number of individuals is winter>autumn>spring>summer， the Shannon-Wiener index is autumn>winter>summer>spring， and the Peilou evenness index is summer>autumn> winter>spring. In the spatial dimension， the number of bird species and Shannon-Wiener index are both forest>wetland>shrub and meadow>agricultural land>residential area， the number of individuals is forest>shrub and meadow>wetland>agricultural land>residential area， and the Peilou evenness index is residential area>forest>wetland>shrub and meadow>agricultural land. The results indicate that the structure of bird community is different among seasons and habitats， with forest and wetland being the most important habitats for maintaining bird diversity. Our findings suggest that it is necessary to focus on the protection of forest and wetland in the region while carrying out continuous monitoring of birds in this region. |
| Key words: Nanxi district birds diversity seasonal variation habitat |
