小天鹅是国家二级保护动物,全球大约有30多万只。它们比大天鹅体型略小一些,是典型的候鸟,大多在西伯利亚和我国东北寒温带的湿地繁殖,秋天会迁徙到南方过冬。它们主要吃湿地植物的根、茎、叶和种子,也会吃一些小鱼、小虾。觅食时,它们会用喙在水下的淤泥中挖掘植 ...
在这份报告中,核心数据令人警醒:自1980年以来,加勒比海地区的硬珊瑚覆盖率已减少了48%,意味着这一“生态基石”在短短四十余年间,就已损失了近半。
SANYA, Dec. 10 (Xinhua) -- The ecological conditions of Hainan Island's coastal waters remain generally favorable, with seawater quality consistently ranking among the highest in China and ...
BEIJING, Dec. 10 (Xinhua) -- China has achieved important results in advancing the work related to the 10-year fishing ban on ...
在2004年到2012年间,南非最主要的两个繁殖区——达森岛和罗本岛——超过95%的非洲企鹅消失了,总死亡数量超过了60,000只。最新研究直指,企鹅的主要食物来源沙丁鱼数量大幅度减少,是造成这场大规模饥饿死亡事件的根本原因。请看本期“海潮天下”的介 ...
NAIROBI, Dec. 10 (Xinhua) -- Conservation of natural habitats has gained momentum thanks to the operationalization of the Chinese-backed Kunming Biodiversity Fund (KBF) launched in May 2024, officials ...
The latest report, produced by the South African National Biodiversity Institute, was informed by the expertise of over 110 institutions and 490 contributors. The fourth of its kind, it is considered ...
In January, a European velvet duck was spotted in the reserve, the first-ever sighting in Henan and only the fifth recorded in China. The bird stayed in the reserve for nearly two months, attracting ...
In his view, the United States has essentially withdrawn from the WTO, disrespecting the trade rules upheld over decades. Under US President Donald Trump's leadership, the US has de facto left the WTO ...
今年七月,在蔡明哲教授所领导之臺大实验林管理处团队努力下,邀集亚洲各国关注自然正成长的学术机构来台参加「2025国际生物信用研讨会」,与会单位包括:日本东京大学、韩国首尔国立大学、国立臺湾大学、泰国农业大学、马来西亚沙巴大学、越南国家林业大学、印尼加 ...
今年COP30(第30届联合国气候变化大会)把「Nature Positive」(自然正向)作为会议主题,已连续多届受邀在联合国气候变化大会演讲的臺湾大学森林环境暨资源学系教授蔡明哲观察,COP30把自然议题推升到前所未有的高 ...
从全球来看,尽管国际社会在渔业管理和栖息地保护方面取得了一些进展,但许多海龟种群依然处于濒危状态。在中国,海龟长期以来是近海生态系统的标志物种,但由于快速的经济发展和高强度的人类活动,其生存状况尤为严峻。近岸海域的渔业捕捞、产卵沙滩和觅食海域(如珊瑚 ...