摘要
2010年4～8月在甘肃安西极旱荒漠国家级自然保护区,采用样点法对荒漠伯劳(Lanius isabellinus isabellinus)的繁殖生态进行了研究,采用单因素方差分析(ANVON)对荒漠伯劳卵体积与卵序之间的关系进行了研究,用二元Logistic回归对雏鸟生长曲线进行拟合。结果表明,荒漠伯劳的繁殖时间为4月底至8月初,每巢产卵3～6枚,平均窝卵数为4.67±0.57(n=21),卵体积为(3.14±0.32)cm3(n=95),卵鲜重(3.48±0.20)g(n=20),卵体积随着产卵顺序显著减小(R=-0.427,P=0.021,n=29),其采取的是"窝雏减少"的繁殖策略。雌鸟产首枚卵后即开始孵卵,雄鸟负责情饲及警戒。温度自动记录仪测量平均孵卵温度为(38.19±0.77)℃(n=2),雌鸟在巢率为93.95%。平均孵卵时间为(15.33±0.52)d(n=6)。荒漠伯劳雏鸟留巢期12～15 d,幼鸟离巢后亲鸟继续饲喂幼鸟,整个育雏期最长达31 d。研究地区荒漠伯劳种群的孵卵率为82.50%(n=80),卵成功率为46.25%(n=80),雏鸟离巢率为56.06%(n=66),巢成功率58.62%(n=29)。在2010年环志标记的12对繁殖鸟中只有1对繁殖了第二窝。
The reproductive characteristics of Rufous-tailed Shrike（ Lanius isabellinus isabellinus） in Anxi Extreme-Arid Desert National Nature Reserve,（ Gansu Province,China）, were investigated using spot sampling method from April to August of 2010. We measured the egg and the nestling size every day and analyzed the relationship between the egg volume and the laying eggs order by ANVON. The nestling growth was predicted by Logistic equations. The breeding season lasted from the end of April to early August. The average clutch size of was 4. 67 ± 0. 57（ n = 21） and the average egg volume was 3. 14 ± 0. 32 cm3（ n =95）,fresh egg mass was 3. 48 ± 0. 20 g（ n = 20） respectively. The egg volume was significantly decreased with the laying eggs order（ R =- 0. 427,P = 0. 021,n = 29）,which match with＂brood reduction strategy＂. Incubation occurred after the first egg been laid by female only,and the male was responsible for courtship feeding and guarding.The average incubation temperature measured by Data-logger was 38. 19 ± 0. 77℃. The duration of incubationwas 15- 16 days and the nestling period lasted 12- 15 days. The hatching success of this population was82. 50%（ n = 80） and 46. 25% egg was successed hatched（ n = 80）. About 56. 06% of nestling leaving（ n =66） and the nestling success was 58. 62%（ n = 29） respectively. Only one couple of of the 12 nests that we had marked hatchen their second brood in 2010.
出处
《动物学杂志》
CAS
CSCD
北大核心
2014年第4期516-522,共7页
Chinese Journal of Zoology
基金
国家自然科学基金项目(No.31172104)
安西极旱荒漠国家级自然保护区三期综合科学考察项目
关键词
极旱荒漠
荒漠伯劳
繁殖生态
安西自然保护区
Extreme-Arid Desert
Lanius isabellinu isabellinu
Reproductive ecology
Anxi National Nature Reserve
