| 付义强,文陇英,叶航,张正旺.2013.峨眉山灰胸薮鹛冬季栖息地特征.动物学杂志,48(5):680-685. |
| 峨眉山灰胸薮鹛冬季栖息地特征 |
| Winter Habitat Characteristics of Emei Shan Liocichla at Emei Mountain in China |
| 投稿时间：2013-04-12 修订日期：2013-08-01 |
| DOI： |
| 中文关键词: 灰胸薮鹛 栖息地 冬季 逐步判别分析 峨眉山 |
| 英文关键词:Emei Shan Liocichla (Liocichla omeiensis) Habitat Winter Step discriminant analysis Emei Mountain |
| 基金项目:国家自然科学基金项目(No.31272330);四川省科技厅课题(No.2011JYZ008);四川省教育厅重点课题(No.11ZA155);乐山师范学院引进人才科研启动项目(No.Z1158) |
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| 中文摘要: |
| 对于特有珍稀鸟类的保护而言,了解其对特定栖息地的要求至关重要。灰胸薮鹛(Liocichla omeiensis)是我国西南山地一种特有的画眉科(Timaliidae)珍稀鸟类。2010~2013年冬季,采用样线法和样方法,在四川峨眉山对灰胸薮鹛的冬季栖息地特征进行了调查。沿山间公路、山脊或林中小径布设观察样线。样线共计26条,总长70 km。观察发现,灰胸薮鹛主要在常绿阔叶林林缘地带活动,海拔范围约500~1 300 m。共设置47个利用样方和25个对照样方。χ2检验的结果表明,灰胸薮鹛主要选择阳坡。与对照样方的差异性检验显示,灰胸薮鹛喜好利用海拔较低、乔木数量较少、乔木胸径较小、乔木均高较低、乔木盖度较小、灌木盖度较大、竹子均高较高、竹子盖度较大、草本盖度较大、藤本植物较丰富、植被总盖度较大和距林缘距离较小的生境。逐步判别分析结果表明,灌木盖度、草本盖度、竹子盖度和距林缘距离是区分利用样方与对照样方的关键因子,判别准确率达87.5%。灰胸薮鹛对冬季栖息地的选择主要与食物和隐蔽条件有关。 |
| 英文摘要: |
| A basic understanding of habitat selection is necessary for conservation of rare endemic birds. The Emei Shan Liocichla (Liocichla omeiensis) is a rare babbler endemic to the mountains of southwest China. During three winters from 2010 to 2013, we conducted investigations on winter habitat characteristics of Emei Shan Liocichla at the Emei Mountain in Sichuan Province, China with line transect and sampling methods. 26 transects were set up along roads, ridges and trails, with a total length of 70 km. We found that Emei Shan Liocichla mainly inhabited the edges of evergreen broadleaf forest, with the elevations ranged from 500 m to 1 300 m. We established a total of 47 used samples and 25 control samples, respectively. χ2 test showed that Emei Shan Liocichla preferred the sunny slope. The tests of differences of the variables between the used and control samples indicated that Emei Shan Liocichla used the habitats with less and lower trees, denser shrubs, herbs, bamboo and lianes, larger total cover of vegetation, and closer to the forest edge in lower altitude. The results of step discriminant analysis showed that cover of shrubs, cover of herbs, cover of bamboo and distance to forest edge were critical factors to discriminate the used and control samples, with the resolution reliability of 87.5%. We suggested that winter habitat selection by Emei Shan Liocichla be mainly related to food and concealment. |
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