濒危物种普氏原羚野外种群数量达3700余只 中新社西宁11月21日电 (李江宁)青海省人民政府新闻办公室21日召开"'十四五'发展成就"系列新闻发布 会，公布普氏原羚野外种群数量已达3700余只，是保护初期的12倍。 作为青海湖旗舰物种，普氏原羚是中国特有哺乳动物中数量最少的物种，是中国国家一级重点保护野生 动物，被列入《世界自然保护联盟》(IUCN)2012年濒危物种红色名录濒危物种。 "近年来，通过补饲、饮水点建设等项目实施，持续改善普氏原羚栖息地环境，为其生存繁衍创造了良 好的条件。"青海湖国家级自然保护区管理局局长刘青春介绍说，通过每年4次监测的数据显示，2020年 至2024年种群数量稳定在3700余只，表明近年来普氏原羚种群得到了有效保护。(完) 来源：中国新闻网 编辑：熊思怡 广告等商务合作，请点击这里 本文为转载内容，授权事宜请联系原著作权人 中新经纬版权所有，未经书面授权，任何单位及个人不得转载、摘编或以其它方式使用。 关注中新经纬微信公众号(微信搜索"中新经纬"或"jwview")，看更多精彩财经资讯。 2024年6月5日，成群的普氏原羚在青海省海北藏族自治州刚察县哈尔盖镇境内的草原上漫步 ...

Core Insights - The article discusses a significant research study on gibbons, revealing their evolutionary history, population dynamics, and conservation status through extensive genomic sequencing [2][4][9]. Group 1: Research Findings - The research team constructed the most comprehensive gibbon genome dataset to date, covering 18 extant gibbon species and successfully obtaining mitochondrial genomes from three extinct samples, including the "Junzi gibbon" [4]. - The study clarified the controversial evolutionary relationships among the four genera of gibbons: Hylobates, Nomascus, Symphalangus, and Hoolock, resolving a century-old classification issue [4][7]. - Phylogenetic analysis based on ancient mitochondrial DNA placed the extinct Junzi gibbon within the Nomascus genus, negating its status as a separate genus [4][7]. Group 2: Genetic and Ecological Insights - The research indicated that historical changes in gibbon population sizes and habitat suitability were consistent with past climate changes [5]. - Comparative genomics and transgenic mouse experiments identified a deletion of 205 base pairs in the Sonic Hedgehog (SHH) gene, which is linked to the elongated limbs characteristic of gibbons [6][7]. Group 3: Implications for Conservation - The findings advance the understanding of gibbon evolution, biology, and conservation efforts, providing critical information for the protection of threatened gibbon species [9].

Core Viewpoint - A new species of the genus Ansonia, named Ansonia yachang, has been discovered in the Yachang National Nature Reserve in Guangxi, China, highlighting the region's biodiversity and the need for conservation efforts [1] Group 1: Discovery and Characteristics - The discovery of Ansonia yachang began with the finding of a "mysterious tadpole" during a field survey in 2024 [1] - In April of this year, the research team successfully collected adult specimens, with males measuring between 28.1 to 31.2 millimeters in length [1] - The most notable feature of Ansonia yachang is its bicolored iris, with the upper part being copper-orange and the lower part gray-brown, resembling "natural gemstones" [1] Group 2: Habitat and Conservation Recommendations - Ansonia yachang is currently found only in a few narrow streams, indicating a limited distribution [1] - The research team recommends expanding the survey area, enhancing habitat management, establishing a monitoring network, and promoting the species' inclusion in the red list assessment [1] - There is a call for societal engagement in the conservation of this unique karst species [1]

Core Insights - The discovery of the endangered Dugong in the waters near Yongshu Reef marks the first recorded evidence of this species in the area in nearly 30 years, filling a significant gap in species distribution data [1][5] - The presence of the Dugong, along with other protected species like Hawksbill turtles and Green turtles, highlights the ecological significance of the Yongshu Reef ecosystem and the success of conservation efforts in the South China Sea [8] Group 1 - The monitoring of Dugong activity began in mid-July 2023, with sightings confirmed on multiple occasions, including close observations and photographic evidence [1][5] - The Dugong is classified as vulnerable by the IUCN and plays a crucial role in maintaining the health of seagrass ecosystems, which are vital for biodiversity [4] - The last confirmed sighting of a Dugong in mainland China was in 2008, and it was declared functionally extinct along the Chinese coast in 2022 [5] Group 2 - The discovery of the Dugong corresponds with sightings in Taiwan, providing important data for understanding the species' migration patterns in response to global changes and human activities [5] - The ongoing collaboration between the South China Sea Institute of Oceanology and local environmental departments has established a long-term monitoring system for reef safety and ecological research [8] - Future efforts will focus on enhancing monitoring and research of marine ecosystems in the South China Sea to support conservation initiatives [8]

Core Insights - The discovery of the endangered Dugong in the waters near Yongshu Reef marks a significant finding, filling a gap in species distribution in the region and providing the first scientific evidence of the species in the South China Sea in nearly 30 years [2] Group 1: Species Discovery - The monitoring team observed the Dugong, a critically endangered species, in the nearshore waters of Yongshu Reef starting from July 8, with continuous sightings over the following month [1] - This is the first time the Dugong has been recorded in the area, which was previously declared functionally extinct along the Chinese mainland coast [2] Group 2: Ecological Significance - The Dugong plays a crucial role in maintaining the health of seagrass bed ecosystems, promoting seagrass renewal and maintaining biodiversity [2] - The presence of the Dugong, along with previously recorded sightings of the Green Sea Turtle and Hawksbill Turtle, highlights the unique ecological value of the Yongshu Reef ecosystem [2] Group 3: Research Implications - The findings provide critical clues for studying the impacts of global changes and human activities on the migratory patterns of the Dugong [2] - Further monitoring is needed to understand why the Dugong was observed alone, as they typically prefer to be in family groups [3]

Core Viewpoint - The Chilean government has initiated a new conservation effort aimed at saving the endangered Darwin frog population, which has drastically declined due to habitat fragmentation and other environmental threats [1][2]. Group 1: Government Actions - The initiative is led by the Chilean government's Climate Change and Sustainable Development Committee, focusing on protecting the habitat and breeding areas of the Darwin frog [1]. - The government aims to collaborate with private landowners to discover new populations of Darwin frogs and significantly increase the habitat area for existing populations [1]. Group 2: Current Status of the Species - The population of Darwin frogs has plummeted to just 62 individuals due to habitat fragmentation caused by forest fires, climate change, invasive species, and urbanization [1]. - The Chilean government has only recently begun monitoring frog populations following a sharp decline in their numbers [1]. Group 3: NGO Perspective - Andres Valenzuela, head of a non-governmental organization focused on the Darwin frog, expressed hope that the conservation action will raise awareness among Chileans about the plight of the species [2]. - Valenzuela emphasized the importance of fostering appreciation for this unique and vital species that inhabits Chile's native forests [2].

Core Viewpoint - The Lushan Botanical Garden, established in the 1930s, has evolved into a comprehensive academic institution focusing on research, conservation, and public education, serving as a model for ecological protection and green development in the Yangtze River Economic Belt [3][4][6]. Group 1: Historical Significance - The Lushan Botanical Garden is recognized as China's first formal scientific botanical garden, founded in 1934 by scholars with a vision for national service [4]. - Over its 91-year history, the garden has maintained its mission of "researching plants for the benefit of humanity," contributing to scientific development during the establishment of New China and expanding its influence internationally post-reform [4][5]. Group 2: Research and Innovation - The garden emphasizes biodiversity protection and has undertaken numerous national and provincial key research projects, producing influential results and gaining international recognition [6]. - Key breakthroughs include understanding the hydraulic efficiency of angiosperm leaves in relation to climate change, analyzing water characteristics of Poyang Lake for ecological protection, and developing new fruit varieties [6][7]. Group 3: Species Protection - The Lushan Botanical Garden serves as a vital plant genetic resource bank, preserving over 10,000 living plant species, including many national key protected and endangered species [7]. - The garden aims to create a national botanical garden, enhancing its facilities and optimizing its landscape to support plant conservation efforts [7][8]. Group 4: Open Collaboration - The garden promotes an open and shared philosophy, hosting international academic conferences and training programs, thus becoming a significant platform for showcasing China's achievements in plant science [8]. - Collaborations with international institutions and local nature reserves enhance biodiversity research and conservation efforts [8][9]. Group 5: Technological Expansion - The establishment of the South Garden focuses on subtropical low-altitude plant resources, featuring specialized greenhouses and preserving thousands of rare plants [9]. - The garden has developed several key laboratories and innovative projects, including immersive botanical theme parks that combine research, industry support, and public education [9][10]. Group 6: Future Development - The Lushan Botanical Garden is committed to becoming a key member of China's national botanical garden system, enhancing its research facilities and talent pool [10][11]. - The garden is advancing digital transformation initiatives, including a digital specimen database and real-time monitoring systems for plant management, supporting ecological research in the Yangtze River Economic Belt [10][11].

Core Viewpoint - China's ambitious ecological restoration projects have transformed the Loess Plateau, previously one of the most severely degraded areas, leading to a significant return of endangered bird species as a testament to ecological balance restoration [1][2] Group 1: Ecological Restoration Efforts - The Chinese government initiated the "Grain for Green" program at the end of the 20th century to combat desertification and restore ecosystems, resulting in over 30,000 square kilometers of rain-fed farmland being converted to forests or grasslands by 2016 [1] - Vegetation coverage increased by 25% over a decade, with the forest and grassland coverage on the Loess Plateau rising from 31.6% in 1999 to 67% in 2020, marking a historic transformation from barren to green [1] Group 2: Biodiversity and Wildlife Return - The restoration efforts have not only reduced soil erosion but also gradually restored biodiversity, with a significant number of bird species returning to the region, indicating the success of the ecological project [2] - As of 2024, data recorded 2,852 animals representing 69 different species in the area, showcasing the positive impact of artificial reforestation on nesting species and the stabilization of the local ecosystem [2] Group 3: Symbolic Species and Ecological Impact - In October 2023, 40 captive-bred Crested Ibis, a species once on the brink of extinction in China, were released back into the Loess Plateau, symbolizing China's commitment to species conservation [2] - The returning bird populations play a crucial role in stabilizing the plateau's ecosystem by aiding in seed dispersal, which accelerates natural vegetation regeneration [2]