摘要
2014—2016年繁殖季,在四川老君山国家级自然保护区内对红翅噪鹛Trochalopteron formosum的繁殖生态进行了初步研究。结果显示,红翅噪鹛的繁殖期为4月下旬到9月中旬。在2016年,红翅噪鹛的繁殖种群密度为14. 733只/km2(95%置信区间:11. 727～18. 511;变异系数:0. 115),主要在八月竹Chimonobambusa szechuanensis上筑巢。在产卵期,雌鸟每天清晨产1枚卵,平均窝卵数为2. 28枚±0. 09枚(n=24;范围:2～3)。孵卵期14～15 d,孵化率约59. 6%。育雏期14 d,出飞率约50. 0%。天敌捕食是红翅噪鹛繁殖失败的首要原因。红翅噪鹛偏好乔木盖度低、竹子较高和竹子盖度较大的巢址生境。乔木盖度可能是影响红翅噪鹛巢址选择的关键生态因子。
A preliminary study based on the breeding ecology of red-winged laughingthrush(Trochalopteron formosum)was conducted during the breeding seasons from 2014 to 2016 in Laojunshan National Nature Reserve,Pingshan county,Sichuan province,China.The results showed that the breeding period of T.formosum was from late April to mid-September.In 2016,the breeding population density was 14.733 ind./km 2(95%confidence interval:11.727-18.511;coefficient of variation:0.115).Nests were found mainly in bamboo(Chimonobambusa szechuanensis).In addition,the female laid an egg in the morning during the egg-laying period,and the average clutch size was 2.28 eggs±0.09 eggs(n=24,range=2-3 eggs).The incubation period was 14-15 days,and the hatching rate was about 59.6%.The nestling period was 14 days,and the fledging rate was about 50.0%.Nest predation was the primary factor causing breeding failure of T.formosum.The species preferred nest-sites with less arbor and more tall bamboo,and the coverage of trees might be the key factor affecting the nest-site selection of T.formosum.
作者
吴永恒
孔赤平
向明
付义强
WU Yongheng;KONG Chiping;XIANG Ming;FU Yiqiang(College of Animal Science,Xinjiang Agricultural University,Urumqi 830052,China;Sichuan Institute Key Laboratory for Protecting Endangered Birds in the Southwest Mountains,College of Life Science,Leshan Normal University,Leshan, Sichuan Province 614004,China;College of Animal Science and Technology,Guangxi University,Nanning 530005,China)
出处
《四川动物》
北大核心
2018年第5期578-584,共7页
Sichuan Journal of Zoology
基金
国家自然科学基金项目(31272330)
乐山师范学院科研创新团队建设计划项目
关键词
红翅噪鹛
种群密度
繁殖生态
巢址选择
四川老君山国家级自然保护区
Trochalopteron formosum
population density
breeding ecology
nest-site selection
Sichuan Laojunshan National Nature Reserve
