广东乳源大峡谷省级自然保护区鸟类资源调查

Investigation on Birds Resources in Ruyuan Grand Canyon Provincial Nature Reserve in Guangdong Province

为了解现阶段广东乳源大峡谷省级自然保护区鸟类资源的多样性状况,于2020年4月~2021年7月在该保护区设立5条样线和3个样点,并布设21台红外相机,进行鸟类专项调查。该次调查共记录到鸟类15目45科146种,其中样线法和样点法记录到124种,红外相机记录到54种。记录到的国家一级重点保护鸟类1种:黄腹角雉(Tragopan caboti),国家二级重点保护鸟类31种。鸟类群落组成主要以东洋界(57.53%)、留鸟(64.38%)为主。保护区鸟类优势种为栗背短脚鹎(Hemixos castanonotus)、灰眶雀鹛(Alcippe morrisonia)、栗耳凤鹛(Yuhina castaniceps)。多样性分析结果显示,该区鸟类群落Shannon-Wiener指数、Pielou指数、Margalef指数分别为:3.578、0.742、14.466,与广东省内同类保护区康禾、古田以及海岛型保护区上川岛对比结果较优。通过对以上的数据分析讨论,为保护区提出相应的保护管理建议。

In order to understand the diversity of bird resources in the provincial nature reserve of Ruyuan Grand Canyon in Guangdong at the present stage,5 sample lines and 3 sample points were set up in the reserve from April 2020 to July 2021,and 21 camera-trappings were deployed for special bird survey.A total of 146 species(15 orders and 45 families)were recorded in this survey,including 124 species by sample point,line transect method and 54 species by camera-trapping.Among them,there is 1 specie of birds recorded as national class I protection:Tragopan caboti,and 31 species of birds recorded as national class II protection.The bird community is mainly composed of Oriental realm(57.53%)and resident birds(64.38%).The dominant species of birds in the reserve are Hemixos castanonotus,Alcippe morrisonia and Yuhina castaniceps.The results of diversity analysis show that the Shannon-Wiener index,Pielou index and Margalef index of the bird community in this area are 3.578,0.742 and 14.466 respectively,which are superior compared with similar reserves in Guangdong Province,such as Kanghe Conservation Area,Gutian Conservation Area and Shangchuan island in the Sea island type reserve.Through the analysis and discussion of the above data,corresponding protection and management suggestions are put forward for the reserve.