【摘要】 为探究同域分布的黄腹角雉和白鹇的活动节律与资源利用，于2021年4月—2023年10月基于红外相机技术在江西南风面自然保护区对雉科动物开展野外监测，累计布设相机149台，共63 579个有效相机工作日，共拍摄到黄腹角雉（Tragopan caboti）、白颈长尾雉（Syrmaticus ellioti）、白鹇（Lophura nycthemera）、灰胸竹鸡（Bambusicola thoracicus）及雉鸡（Phasianus colchicus） 5种雉科动物。研究结果如下:（1）白鹇月相对丰富度在2月最低（MRAI=3.30）,5月最高（MRAI=13.05）;黄腹角雉月相对丰富度在2月最低（MRAI=0.66）,8月最高（MRAI=17.88）。（2）白鹇和黄腹角雉年日活动节律呈现明显的昼行性（Δ=0.95），无显著性差异（P=0.657 > 0.050）。（3）白鹇繁殖期与非繁殖期日活动节律（Δ=0.90）存在显著性差异（P=0.031<0.050）;黄腹角雉繁殖期与非繁殖期日活动节律（Δ=0.78）存在显著性差异（P=0.046<0.050）。（4）繁殖期日活动节律为晨昏性（Δ=0.81），存在显著性差异（P=0.031<0.050）;非繁殖期间日活动节律为昼行性（Δ=0.93），无显著性差异（P=0.813 > 0.050）。（5）黄腹角雉与白鹇在海拔资源利用上的竞争较为缓和(Q_aj=0.324 5)，对生境资源利用的竞争相对激烈(Q_aj=0.908 3)。分析在南风面自然保护区同域分布的黄腹角雉和白鹇的活动节律与资源利用，为深入开展同域分布雉科动物的共存机制奠定了基础。更多还原

【Abstract】 The study explores the activity rhythms and resource utilization of the co-distributed Tragopan caboti and Lophura nycthemera,conducts field monitoring of pheasant animals in the nanfengmiao nature Reserve in Jiangxi Province from April 2021 to October 2023 based on infrared camera technology,deploys a total of 149 cameras,with 63 579 valid camera working days. 5 species of pheasants（ colchicus）are photographed:Tragopan caboti,Syrmaticus ellioti,Lophura nycthemera,Bambusicola thoracicus and Phasianus colchicus. The study findings are as follows:（1）The monthly relative abundance index（ MRAI） of Lophura nycthemera is the lowest in February（ MRAI = 3. 30）and the highest in May（ MRAI = 13. 05）. Tragopan caboti shows its lowest MRAI in February（ MRAI = 0. 66） and highest in August（ MRAI =17. 88） ．（2） Both Tragopan caboti and Lophura nycthemera exhibit diurnal activity rhythms throughout the year（ Δ = 0. 95）,with no significant difference（ P = 0. 657 > 0. 050） ．（3）Significant differences are found in daily activity rhythms between breeding and non-breeding periods for Lophura nycthemera（ Δ = 0. 90,P = 0. 031 < 0. 050） and Tragopan caboti（ Δ = 0. 78,P = 0. 046 < 0. 050） ．（4）During the breeding period,both species are active in the morning and dusk,with significant difference（ Δ = 0. 81,P = 0. 031 < 0. 050）; during the nonbreeding period,diurnal activity rhythms are observed,with no significant difference（ Δ = 0. 93,P = 0. 813 > 0. 050） ．（5）Competition for altitudinal resource utilization between Tragopan caboti and Lophura nycthemera is relatively mild( Q_aj= 0. 324 5),whereas competition for habitat resource utilization was relatively intense( Q_aj= 0. 908 3). The study analyzes the temporal and spatial niches of Tragopan caboti and Lophura nycthemera,laying basis for a deeper understanding of coexistence mechanisms among sympatric Phasianidae species.更多还原