| 陈懋,王力军,史海涛,马凯.2014.海南万泉河琼海段外来物种红耳龟生境适宜性分析.动物学杂志,49(5):692-698. |
| 海南万泉河琼海段外来物种红耳龟生境适宜性分析 |
| Habitat Suitability Analysis for the Introduced Red-eared Slider Turtle （Trachemys scripta elegans）in Qionghai Section of Wanquan River, Hainan |
| 投稿时间：2013-11-19 修订日期：2014-07-03 |
| DOI：10.13859/j.cjz.201405008 |
| 中文关键词: 红耳龟 (Trachemys scripta elegans) 3S技术 入侵物种 生境适宜性 海南 |
| 英文关键词:Red-earedSslider turtle (Trachemys scripta elegans) 3S technology Invasive species Suitability Hainan |
| 基金项目:国家自然科学基金项目（ No．31372228；No．31260519） |
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| 中文摘要: |
| 为了解外来入侵物种红耳龟（Trachemys scripta elegans）在海南入侵区的适宜栖息地特征，本文采用野外调查, 结合3S技术（GIS、GPS和RS）和因子筛选的方法对海南万泉河琼海段的红耳龟的生境选择进行了研究，并对该区域红耳龟生境适宜性及空间分布进行了分析。研究结果表明：红耳龟喜好选择在海拔0 m~15 m、人为干扰距离在200 m~400 m的水域且离水源距离不超过100 m的人工林区域栖息。GIS分析表明，2009年海南万泉河琼海段红耳龟的适宜生境面积达95.13km2，占研究区总面积的5.66%；较适宜生境达153.32km2，占研究区总面积的9.12%；不适宜生境1432.58 km2，占研究区总面积的85.22%。通过对该区域红耳龟生境的适宜性分析研究，为有效防治和管理红耳龟的入侵和扩散提供基础数据和科学依据。 |
| 英文摘要: |
| To understand the characteristics of suitability habitat for the introduced red-eared slider turtle (Trachemys scripta elegans) in Hainan， habitat selection was studied in Qionghai section of Wanquan River. Basing on 1 741 locations from 27 individuals tracked, the ecological factors such as elevation, slope, aspect, cover type, distance to water and human disturbance distance were collected. Linear regression was used to analyze the correlation of ecological factors. Using Vanderploge and Scavia's selectivity index to assess red-eared slider turtle's habitat selection for the different habitat parameters. 3S technology (GPS, RS, GIS) was used to analyze the data obtained from field surveys and satellite images, and classifying remote sensing data of Landsat TM digital image in 2009 by supervised classification. The results show that red-eared slider turtle preferred to these area with an altitude of 0~15 m, the human disturbance distance to water from 200 to 400 m, and artificial forest distance to water below 100 m. The analysis of GIS show that the most distribution of suitable habitat in central and eastern Qionghai, and the area of suitable habitat, less suitable habitat and unsuitable habitat were 95.13 km2, 153.32 km2 and 1 432.58 km2, accounting for 5.66%, 9.12% and 85.22% respectively of the total area. It was also implied that the red-eared slider turtle has a lot of potential invasion area in Qionghai section of Wanquan River. To some extent, the analysis on the habitat suitability can provide the basis data for preventing and controlling the red-eared slider turtle in Hainan. |
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