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首页> 外文期刊>Freshwater science >Single-sample estimation of effective population size in several populations of the endangered Hine's emerald dragonfly
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Single-sample estimation of effective population size in several populations of the endangered Hine's emerald dragonfly

机译：对濒危的海因祖母绿蜻蜓的多个种群的有效种群规模进行单样本估计

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摘要

Hine's emerald dragonfly (Somatochlora hineana) is the only odonate on the US Endangered Species list. It prefers discrete fen-and-wet-meadow habitat from Ontario, Canada, to Missouri, USA. This habitat has been destroyed across much of S. hineana's range. Its conservation genetics were assessed by microsatellite analysis in a previous study. We applied 2 common single-sample estimators to the same data set to estimate effective population size (N-e), or effective number of breeders, in 5 populations (separated into adult and naiad stage classes) across the species' range in 2008 and 2010-2011. Populations of the species in the Upper Peninsula of Michigan, the Door Peninsula of Wisconsin, and along the Des Plaines River Valley in Illinois are made up of individuals collected from multiple sites, but the other 2 populations, at Cedarburg Bog, Wisconsin, and along the Lower Wisconsin River, consist of samples from single habitats disjunct from other known sites. N-e for S. hineana were similar to those for other endangered insects and ranged from 22 adults in the Des Plaines River Valley population in 2010 to 200 adults in the Door Peninsula population in 2010 based on approximate Bayesian estimation in ONeSAMP and from 8 naiads in the Door Peninsula population to 419 adults in the Des Plaines River Valley population based on the linkage disequilibrium method in NeEstimator. These N-e values confirm the endangered status of this species and indicate that efforts to maintain current habitats and connectivity to suitable habitat are essential to maintaining genetic diversity.
机译：Hine的翡翠蜻蜓（Somatochlora hineana）是美国濒危物种名单上唯一的odonate。它更喜欢从加拿大安大略省到美国密苏里州的离散的湿湿草甸栖息地。该栖息地已在s。hineana的大部分范围内遭到破坏。在先前的研究中，通过微卫星分析评估了其保护遗传学。我们在同一数据集上使用了2个常见的单样本估计量，以估计2008和2010年该物种范围内5个种群（分为成年和幼年阶段的种群）中的有效种群大小（Ne）或育种者的有效数量， 2011。密歇根州上半岛，威斯康星州门半岛以及伊利诺伊州的德斯普兰斯河谷沿岸的物种种群是从多个地点采集的个体组成的，而其他两个种群分别位于威斯康星州的锡达堡沼泽和威斯康星州下河包括与其他已知地点分离的单个栖息地的样本。猪链球菌的Ne与其他濒临灭绝的昆虫的Ne相似，根据ONeSAMP中的贝叶斯估计，2010年在德斯普兰斯河谷种群中有22只成年动物，在2010年在Door Peninsula种群中有200只成年动物，在该物种中有8种。根据NeEstimator中的连锁不平衡方法，Des Plaines河谷人口中的419个成年人的门半岛人口。这些N-e值证实了该物种的濒危状态，并表明维持现有生境和与适当生境的连通性的努力对于维持遗传多样性至关重要。

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