1. <sub id="zy88n"></sub>
        1. <blockquote id="zy88n"></blockquote>
          欧美黑人又大又粗xxxxx,人人爽久久久噜人人看,扒开双腿吃奶呻吟做受视频,中国少妇人妻xxxxx,2021国产在线视频,日韩福利片午夜免费观着,特黄aaaaaaa片免费视频,亚洲综合日韩av在线

          Infrared cameras used by Chinese researchers to monitor Antarctica's snow petrel

          Source: Xinhua| 2019-02-13 16:32:07|Editor: Liangyu
          Video PlayerClose

          ANTARCTICA-CHINA-ZHONGSHAN STATION-SNOW PETREL

          A snow petrel and its chick are seen near the Zhongshan Station, a Chinese research base in Antarctica, Jan. 14, 2019. Chinese researchers have begun using infrared cameras to monitor Antarctica's snow petrel, a key indicator species of the local marine ecosystem. This is the first time Chinese researchers in Antarctica have used infrared cameras in bird monitoring. (Xinhua/Liu Shiping)

          ANTARCTICA, Feb. 13 (Xinhua) -- Chinese researchers have begun using infrared cameras to monitor Antarctica's snow petrel, a key indicator species of the local marine ecosystem.

          "It's an advanced method to use infrared cameras in monitoring wild animals, and the camera's use has enabled automatic monitoring on the bird's life in the area of Zhongshan Station," said Zhang Zhengwang, a professor from Beijing Normal University and a member on China's 35th research mission in Antarctica.

          "This is the first time Chinese researchers in Antarctica have used infrared cameras in bird monitoring, " he added.

          With the help of a total of 11 infrared cameras, Zhang has conducted the first systematic investigation and monitoring of the snow petrels living around the Chinese research base for more than two months.

          Zhang said he continuously monitors the reproductive behavior of 109 of the some 470 snow petrel families he observed and put on record, and found that they brooded mostly during the night.

          In addition, the Chinese researcher listed natural predators, extreme weathers and human activities as the major factors affecting the reproduction and population of Antarctica's birds, and urged further efforts to protect the local ecosystem.

          The snow petrel is one of only three birds that breed exclusively in Antarctica. It builds nests in the crevices of the rocks of cliffs, lays eggs between late November and early December, and has a breeding time of 90 to 100 days.

             1 2 3 4 5 6 Next  

          KEY WORDS:
          EXPLORE XINHUANET
          010020070750000000000000011100001378186261
          主站蜘蛛池模板: 国产成人亚综合91精品首页| 一卡二卡三卡视频| 国产精品成人嫩草影院| 9孩岁女精品╳片| 精品人妻丰满久久久a| 国产久热精品热线av| 久久精品青草社区| 少妇做爰免费视频网站| 色噜噜狠狠色综合欧洲selulu| 极品教师在线观看免费完整版| 深夜av免费在线观看| 一本av高清一区二区三区| 久久亚洲国产成人精品v| 免费无码VA一区二区三区| 中文天堂国产最新| 少妇精品久久久一区二区三区| 鲁一鲁一鲁一鲁一曰综合网| 五月天久久综合国产一区二区| 国模欢欢高清炮交视频| 国产成人精品午夜福利在线播放| 91尤物国产尤物福利在线| 亚洲av日韩av永久无码电影| 蜜桃AV噜噜一区二区三区| 亚洲AV成人片不卡无码| 国产成人做受免费视频| 老鸭窝在线视频| 2020久热爱精品视频在线观看| 91精品亚洲一区二区三区| 老司机午夜福利视频免费播放| 免费人成视频网站在线| 亚洲自偷自拍熟女另类| 无码专区 人妻系列 在线| 亚洲熟妇无码av不卡在线观看| 欧美喷潮久久久xxxxx| 国产精品久久自在自2021| 亚洲欧美综合中文| 一区二区偷拍美女撒尿视频| 国产资源站| 久久精品丝袜| 看国产黄大片在线观看| 国产成人8X人网站视频|