发布时间
2026/03/25 04:5812 分钟前源站更新
2026/03/25 04:5812 分钟前首次抓取
2026/03/25 04:5812 分钟前发布时间
12 分钟前源站更新
12 分钟前首次抓取
12 分钟前用于追踪这条内容的来源与记录标识。
Source
原始链接
发布时间
2026/03/25 04:5812 分钟前源站更新
2026/03/25 04:5812 分钟前首次抓取
2026/03/25 04:5812 分钟前发布时间
12 分钟前源站更新
12 分钟前首次抓取
12 分钟前用于追踪这条内容的来源与记录标识。
Source
原始链接
A lost icon: The American chestnut and its central place in the eastern landscape
发布时间
175 天前
2026-04-16 13:49:46 UTC
源站更新
175 天前
2026-04-16 13:49:46 UTC
首次抓取
175 天前
2026-04-16 14:06:17 UTC
美国栗树曾是东部生态核心，20 世纪初因真菌病害几近灭绝。目前通过 DNA 测序和育种研究，科学家正努力使其恢复野生种群。
The American chestnut, once a towering keystone species in eastern U.S. forests, was functionally wiped out by fungal blight by the 1950s. Scientists are now using DNA sequencing and breeding efforts, including traits from Chinese chestnuts, to try to restore wild populations in
用于追踪这条内容的来源与记录标识。
