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“又是被稻了的一天”-环球时报

首次发现国又是被稻了的一天内罕见雪雁 河北衡水湖鸟类增至335种

来源: 重庆晨报
2024-11-13 03:38:38

最佳回答

“又是被稻了的一天”首次发现国又是被稻了的一天内罕见雪雁 河北衡水湖鸟类增至335种

  中新又是被稻了的一天网衡水11月12日电 (马路又是被稻了的一天 裴国荣 黄建)河北衡水湖国家级自然保护区管理委员会12日消息,当地首次发现国内罕见的国家“三有”保护动物雪雁。至此,衡水湖观测记录到的鸟类由过去的334种增至335种。

  “雪雁在中国并不常见,其东亚种群的数量比极危物种白鹤还少。”河北衡水湖国家级自然保护区资源保护局湿地生态监测科科长张余广称,雪雁主要繁殖于北极苔原地带,越冬于北美洲的亚热带及温带地区,偶见于日本和中国东部沿海。“雪雁虽然在河北、长江口等地有记录,但在衡水湖是第一次被记录到。”

11月6日,当地开展迁徙鸟类调查时于衡水湖拍摄到的雪雁(中间白色)。李明 摄

  据介绍,随着秋冬候鸟迁徙季到来,当地自10月末开展了迁徙鸟类调查工作。其间,工作人员在豆雁群中发现一只通体雪白的大鸟,体型较豆雁大一些,参与调查的摄影师李明将这只大鸟拍摄了下来。经专家鉴定,这是一只国内罕见的雪雁。

  “作为雁形目鸭科雁属鸟类,雪雁平均寿命25年,是纯粹的素食者,且是终身一夫一妻制。”张余广表示,此次发现的雪雁,不仅刷新衡水湖鸟类新纪录,更是当地生态保护工作成效的有力证明,现在衡水湖鸟类记录占河北省鸟类记录的近七成。

  作为华北平原保持沼泽、水域、滩涂、草甸和林地等完整湿地生态系统的国家级自然保护区,衡水湖享有“东亚蓝宝石”美誉,是“东亚—澳大利西亚候鸟迁徙线”上的重要驿站。每年11月20日前后,此间候鸟达到峰值,最多时逾10万只,衡水湖上空会形成飞鸟连天的“鸟浪”奇观。(完)

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