Results 81 to 90 of about 401 (120)

候鸟在大黑山岛迁徙的“减员”

open access: yes野生动物学报, 1990
长岛鸟类自然保护区有32个岛屿,面积为53.17平方公里。居山东与辽东半岛之间的渤海海峡。是我国东部候鸟迁飞线上重要的一“站”。笔者以大黑山岛为基点,经过40多年的观察,途经这里的候鸟约占全区总量的三分之一。其迁徙特点是:猛禽,白昼迁飞,夜晚栖落;雀形目鸟,夜晚迁飞,白昼栖落于岛上。
刘文权
doaj  

[A Review of Archaeological Studies on Dento-maxillofacial Deformities]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Luo G, Deng D, Zhou J, Zhou C.
europepmc   +1 more source

[Research progress of pyruvate kinase type M2 in hepatocellular carcinoma]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi, 2022
Lu DH   +5 more
europepmc   +1 more source

[Clinical characteristics of congenital and acquired middle ear cholesteatoma in children]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Shao J   +9 more
europepmc   +1 more source

[Advances in the pathogenesis and treatment of neutrophils in chronic sinusitis]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Liu D, Huang J, Xu Y.
europepmc   +1 more source

[The characterization analysis of pathogenic T cells in immune-mediated aplastic anemia mouse model]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi, 2022
Jia H, Lin ZH, Li W, Zhang ZP, Liu H.
europepmc   +1 more source

[Role and mechanism of Wnt9a in human and mouse chronic wound healing]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Jia YH, Yuan YX, Hu DH, Guan H.
europepmc   +1 more source

重庆江北国际机场鸟类迁徙规律及鸟击风险评估

open access: yes野生动物学报
为应对重庆江北国际机场迁徙季与夜间鸟击高发问题,本研究利用拦鸟网调查法监测了春、秋季该区域迁徙鸟类活动规律,并结合机场2009—2022年鸟击事件数据,基于国际民航通用安全风险评估模型对拦鸟网拦截鸟类进行了鸟击风险定量评估。结果显示:春、秋季共记录鸟类135种(类),优势种包括田鹨(Anthus richardi)、小云雀(Alauda gulgula)等。春季日均拦截鸟类(50.9 ± 56.5)只、迁徙高峰集中在4月中旬—5月中旬;秋季日均拦截(44.1 ± 46.0)只,无集中迁徙高峰期 ...
李晓娟   +3 more
doaj  

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