青海湖鸬鹚繁殖习性的初步观察
Preliminary Observation on the Breeding Habits of Cormorant
查看参考文献13篇
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文摘
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1999年4～7月和2000年3～8月，对表示第湖地区的鸬鹚繁殖过程进行了观察，初步掌握了鸬鹚的迁移、营巢、产卵、孵卵、育雏和扩散等生态习性。结果表明：鸬鹚每年3月中、下旬迁来青海湖繁殖，两性共同营巢，营巢期集中在每年4月上旬至6月中旬；产卵高峰期为4月下旬至5月中旬。平均卵重是（57.5 ± 2.02）g，卵的大小为67.29 mm * 40.2 mm，平均窝卵数为（3.61 ± 0.34）枚。鸬鹚孵卵期为（28.07 ± 0.53）d，孵化期间的卵重损失（Y）与孵卵天数（X）之间的线性回归方程为Y = 0.997-0.0068X (r = 0.990, df = 8, P < 0.01)。 |
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其他语种文摘
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Breeding habits of Cormorant {Phalacrocorax carbo) population were studied in the Qinghai Lake region. The paper reported the breeding habits such as nesting, egg laying, hatching, parental care and pervasion in the cormorants. The results showed thai cormorants came to the Qinghai Lake in early and mid March. Breeding cormorants cooperated to build their nests from early April to mid June. Cormorants laid their eggs mainly during the first half of May. Average clutch size in cormorants was 3.61 ± 0.34. The eggs weighed 57.5 ± 2.02 g and were 67.29 mm x 40.2 mm in size. Incubation period was 28.07 ± 0.53 days. The relationship between egg weight loss and incubation time was described by the equation: Y = 0.997 - 0.00681 (r = 0.990, d/"=8, P < 0.01) , where Y was the egg weight loss during incubation, X was incubation time. |
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来源
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动物学杂志
,2003,38(6):91-93 【核心库】
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关键词
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鸬鹚
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青海湖
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繁殖习性
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地址
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1.
中国科学院西北高原生物研究所, 西宁, 810001
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山东莱阳农学院, 莱阳, 265200
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0250-3263 |
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学科
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动物学 |
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基金
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中国科学院西北高原生物研究所所长择优基金
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文献收藏号
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CSCD:1246264
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参考文献 共
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