| 黄勇杰,卢佳斌,王锋堂,林英华,刘磊,米红旭,莫方群,方精,李佳灵.2017.基于MaxEnt模型预测海南岛海南臭蛙的潜在地理分布.动物学杂志,52(1):30-41. |
| 基于MaxEnt模型预测海南岛海南臭蛙的潜在地理分布 |
| Predicting the Potential Geographical Distribution of Hainan Odorous Frog (Odorrana hainanensis) in Hainan Province by MaxEnt |
| 投稿时间：2016-06-06 修订日期：2016-12-27 |
| DOI：10.13859/j.cjz.201701004 |
| 中文关键词: 海南臭蛙 MaxEnt模型 潜在分布区 |
| 英文关键词:Hainan Odorous Frog (Odorrana hainanensis) MaxEnt model Potential distribution |
| 基金项目:全国陆生野生动物第二次调查专项； |
|
| 摘要点击次数: 2669 |
| 全文下载次数: 2382 |
| 中文摘要: |
| 生境分析与预测是受威胁物种有效保护的基础。本研究通过ArcGIS技术平台，利用MaxEnt模型，结合野外调查获得的海南臭蛙（Odorrana hainanensis）66个分布点数据和17个30 m × 30 m分辨率的环境变量数据，对该物种在海南岛内的潜在分布区进行预测，并分析其与环境因子之间的关系。结果显示，海南臭蛙的潜在分布区主要位于海拔200 ~ 1 200 m的地区，最适宜的海拔范围是600 ~ 1 000 m，总分布面积约2 179 km2。海南臭蛙空间分布具有不连续性，其分布区分为三个斑块，尖峰岭所在地为斑块Ⅰ，霸王岭、鹦哥岭和黎母山所在地为斑块Ⅱ，五指山和吊罗山所在地为斑块Ⅲ。适宜生境分析显示，斑块Ⅰ适宜生境面积为218.4 km2，主要分布在尖峰岭中部的三分区、五分区和南部的南崖；斑块Ⅱ适宜生境面积为963.5 km2，主要分布在霸王岭北部的牙琼、南美岭以及鹦哥岭东部的鹦哥嘴、什寒、秀寨岭和黎母山主峰西侧的四分场；斑块Ⅲ适宜生境面积为997.1 km2，主要分布在五指山西部的那罗岭、南部的好定岭和吊罗山中部的度假村、白水岭以及研究区东部的牛上岭。环境变量分析显示，海拔是影响海南臭蛙分布的最主要环境因子，其次是坡度、距水源距离、归一化植被指数（NDVI）和年降水量，温度、湿度和日照对海南臭蛙的分布影响较小。 |
| 英文摘要: |
| Habitat analysis and prediction are the foundation on threatened species protection. In this study, we used the ecological niche model, MaxEnt, based on ArcGIS, combined with 66 occurrence records and 17 30 m × 30 m resolution environmental variables, to predict the potential distribution of Hainan Odorous Frog (Odorrana hainanensis) and analyzed the relationship of this species with the environmental factors in Hainan Island, China. The prediction and analysis were conducted in MaxEnt 3.3.3. Then we employed the receiver operating characteristic (ROC) curve to evaluate the accuracy resulting from the model analysis and performed the Jackknife test to evaluate the importance and contribution of environmental variables. Finally, we analyzed the potential distribution of Hainan Odorous Frog produced by MaxEnt model by habitat suitability index (HSI), in which areas with value HSI > 0.44 was considered to be high suitability, 0.20 < HSI ≤ 0.44 was moderate suitability, 0.06 < HSI ≤ 0.20 was low suitability and HSI ≤ 0.06 was unsuitability. The potential distribution of Hainan Odorous Frog is approximately 2 179 km2 at an altitude range of 200﹣1 200 m with the optimum distribution range between 600 m and 1 000 m (Fig. 4). The overall pattern of potential distribution of this species is uncontinuity and occurs in three patches (Fig. 2). The Patch Ⅰ named Jianfengling is a minimum potential distribution with an area of 218.4 km2 (Table 1), which mainly occurs in the Sanfenqu and Wufenqu in the center and Nanya in the south of Jianfengling. The Patch Ⅱ is as large as 963.5 km2 which locates in the region of Bawangling, Yinggeling and Limushan within the regions Yaqiong, Nanmeiling of northern Bawangling, and Yinggezui, Shenhan, Xiuzhailing of easthern Yinggeling and Sifenchang of central Limushan. The Patch Ⅲ is found in the region of Wuzhishan and Diaoluoshan and its size is 997.1 km2 that is similar to Patch Ⅱ. The majority of Patch Ⅲ is in the Naluoling in the west, Haodingling in the south of Wuzhishan, and Dujiacun, Baishuiling in central Diaoluoshan, as well as the Niushangling in eastern study area. A further analysis for the potential distribution area which occurs within six nature reserves gave the following results: (1) The total potential distribution (HSI > 0.06) of this frog species was 565.1 km2, of which 10.8% was highly suitable (HSI > 0.44). These habitats located in six protected areas and approximately accounted for 26.0% of the overall potential distribution region. The largest potential distribution (HSI > 0.06) with an area of 156.4 km2 was located in the Bawangling National Nature Reserve, the next one was detected in Yinggeling National Nature Reserve with 137.9 km2 (HSI > 0.06) in size. While the minimum value of potential distribution region 44.3 km2 was found in Wuzhishan National Nature Reserve (Table 2). The result of Jackknife test showed the land altitude was the main environmental factor affecting the distribution of Hainan Odorous Frog for 45.2%, the slope for 23.9%, then distance to water for 8.3%, normalized difference vegetation index for 5.2% and annual precipitation, with a value of contribution 5.2% respectively (Table 3). Temperature, humidity and sunshine had little impact. Our study indicated that the area of suitable habitat of Hainan Odorous Frog in protected areas was relatively large, while the quality of habitat outside the nature reserves may be influenced by the climate and human factors. |
| 附件 |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
