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Conservation genetics of regionally extinct peregrine falcons ( Falco peregrinus ) and unassisted recovery without genetic bottleneck in southern England
Conservation Genetics ( IF 2.0 ) Pub Date : 2021-01-13 , DOI: 10.1007/s10592-020-01324-z
Angela Weaving , Hazel A. Jackson , Michael K. Nicholls , Jon Franklin , Rodrigo Vega

The peregrine falcon (Falco peregrinus) has been affected by persecution, pollution, trade, and habitat degradation, but it is considered a flagship conservation success story because of successful reintroductions and population recoveries across broad ranges. However, in the UK there were never formal reintroduction programmes for peregrine falcons, and it appears that UK populations—and specifically the Sussex peregrines of the English south coast—recently recovered from a population crash unassisted. To study this, we obtained samples from contemporary populations in southern England, Ireland, continental Europe, domestic-bred peregrine falcons, and from England pre-population crash. Using microsatellite and mtDNA control region data, the genetic diversity and structure, signatures of genetic bottlenecks, and potential origin of the Sussex peregrines was investigated. We found low levels of genetic diversity across all peregrine falcon groups, low but significant genetic differentiation, and a few private alleles, indicating some level of genetic structure among European peregrines. Although we could not pinpoint the origin of the Sussex peregrines, the data suggests that it is not likely to have originated from escaped domestic birds or from adjacent European populations. The results obtained here parallel other studies on peregrines elsewhere showing low genetic diversity but genetic structure. We conclude that not enough time elapsed for genetic erosion to occur due to the population bottleneck, and that at least for the Sussex peregrines there is no need for genetic conservation by wild-take and subsequent captive breeding programmes as long as current protection measures remain in place.



中文翻译:

英格兰南部地区灭绝的游eg(Falco peregrinus)的保护遗传和无遗传瓶颈的无助恢复

游eg(Falco peregrinus)受到迫害,污染,贸易和栖息地退化的影响,但由于成功地重新引入并在广泛范围内进行了人口恢复,因此被认为是保护成功的旗舰。但是,在英国,从来没有正式的游f猎鹰重新引进计划,而且看来英国人,特别是英属南海岸的苏塞克斯游eg,最近在无助的情况下从种群崩溃中恢复过来。为了对此进行研究,我们从英格兰南部,爱尔兰,欧洲大陆,国产游per猎鹰以及英格兰人口大灾前的当代种群中获取了样本。利用微卫星和mtDNA控制区域数据,调查了苏塞克斯游per的遗传多样性和结构,遗传瓶颈的特征以及潜在起源。我们发现所有游rine猎鹰群之间的遗传多样性水平较低,遗传分化低但显着,并且有一些私人等位基因,这表明欧洲游eg中的遗传结构处于一定水平。尽管我们无法查明苏塞克斯游eg的起源,但数据表明,它不可能起源于逃逸的家禽或邻近的欧洲种群。此处获得的结果与其他研究有关的其他地方的游牧民族平行,这些研究表明遗传多样性低但遗传结构低。我们得出的结论是,由于人口瓶颈,没有足够的时间使遗传侵蚀发生,并且至少对于苏塞克斯郡,只要保持现行的保护措施,就无需通过野外采集和随后的圈养繁殖计划进行基因保护。地点。

更新日期:2021-01-13
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