一项新研究发现 富兰克林大黄蜂的衰落 始于几千年前 原因是遗传多样性低 远早于现代威胁之前 A new study finds the Franklin bumble bee's decline began thousands of years ago due to low genetic diversity, long before modern threats.

2025年10月20日发表的一份新研究发现, 富兰克林黄蜂在2006年最后一次出现, 原产于俄勒冈州和加利福尼亚州, 在现代人类影响之前, 可能面临数千年的长期人口下降及遗传脆弱性。 A new study published October 20, 2025, finds the Franklin bumble bee, last seen in 2006 and native to parts of Oregon and California, likely faced long-term population decline and genetic vulnerability for thousands of years before modern human impacts. 对博物馆标本的分析表明,该物种的遗传多样性极低,并有可追溯到冰川时期的繁殖迹象,最近几个世纪,由于干旱和野火等自然压力因素,该物种的繁殖下降情况恶化。 Analysis of museum specimens shows the species had extremely low genetic diversity and signs of inbreeding dating back to the glacial period, with declines worsening in recent centuries due to natural stressors like drought and wildfire. 这项研究利用来自25个样本的全基因数据,发现几乎没有证据表明其消失与杀虫剂或疾病有关。 The research, using whole-genome data from 25 specimens, found little evidence linking its disappearance to pesticides or disease. 研究结果突出表明博物馆收藏物在跟踪长期物种减少情况方面的重要性,并强调了范围小和遗传学脆弱的授粉者所面临的风险。 The findings highlight the importance of museum collections in tracking long-term species decline and underscore the risks faced by pollinators with small ranges and fragile genetics.