The Beijing Swift(Apus apus pekinensis)is a typical cavity-nesting bird that often nests inside holes and crevices in old architectures.Direct observation of their breeding behaviour is challenging and their breeding ...The Beijing Swift(Apus apus pekinensis)is a typical cavity-nesting bird that often nests inside holes and crevices in old architectures.Direct observation of their breeding behaviour is challenging and their breeding ecology is thus poorly studied.In this study,we analysed light-level geolocation data collected from six Beijing Swifts for the first time.Our results showed that geolocators can make comprehensive inference of their incubation period and behaviour.As a cost-effective and non-invasive method,geolocators can not only facilitate discovering migration routes,but also can be widely applied in the study of avian reproductive behaviour,especially in cavity-nesting bird species.We further discussed the characteristics and merits of this method and compared with other conventional nest-monitoring methods in recording birds.展开更多
文摘目的了解宁波市鄞州区健康人群麻疹和风疹血清抗体水平,为调整防控策略提供科学依据。方法随机抽取该区8个年龄组的部分健康人群,采集血标本,采用酶联免疫吸附试验检测麻疹和风疹血清Ig G抗体水平,同时开展麻疹、风疹抗体水平情况问卷调查。结果本次共监测290人,麻疹抗体阳性率为81.72%,保护性抗体阳性率为50.00%,抗体几何平均浓度（GMC）为575.24 m IU/ml;风疹抗体阳性率为73.45%,GMC为38.92 IU/ml。不同性别、户籍间麻疹和风疹抗体阳性率和GMC差异均无统计学意义（P〉0.05）;有无麻疹患病史间麻疹保护性抗体阳性率和GMC差异均有统计学意义（P〈0.05）;不同免疫剂次、不同年龄组间麻疹和风疹抗体阳性率和GMC均有统计学意义（P〈0.05）。结论宁波市鄞州区健康人群麻疹风疹抗体水平尚不足以形成有效免疫屏障,存在着局部地区、小范围暴发的可能性,要提高疫苗接种率和免疫成功率,对3岁～19岁组人群建议加强查漏补种和强化免疫,同时加强麻疹和风疹疫情监测与处置。
基金funded by SHAN SHUI Conservation Centre,Beijing。
文摘The Beijing Swift(Apus apus pekinensis)is a typical cavity-nesting bird that often nests inside holes and crevices in old architectures.Direct observation of their breeding behaviour is challenging and their breeding ecology is thus poorly studied.In this study,we analysed light-level geolocation data collected from six Beijing Swifts for the first time.Our results showed that geolocators can make comprehensive inference of their incubation period and behaviour.As a cost-effective and non-invasive method,geolocators can not only facilitate discovering migration routes,but also can be widely applied in the study of avian reproductive behaviour,especially in cavity-nesting bird species.We further discussed the characteristics and merits of this method and compared with other conventional nest-monitoring methods in recording birds.
