The Mascarene Petrel Pseudobulweria aterrima is a critically endangered seabird endemic to Reunion Island, with an extremely small population suffering several threats. Fifteen polymorphic microsatellite loci were isolated from this species to analyse genetic diversity, estimate contemporary effective population size, search for evidence of a population bottleneck and see whether results support the hypothesis that life history traits could preserve allelic diversity in small populations. Results from 22 individuals found grounded as a consequence of light pollution highlight a surprisingly high genetic diversity, an absence of inbreeding, a contemporary effective population size estimated at approximately 1211 individuals and a probable bottleneck around 10 000 generations ago. Additional studies on genetic diversity and structure from a larger number of samples are thus required to evaluate the evolutionary potential of this critically endangered species.

中文翻译：

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尽管濒临灭绝的长寿命海鸟Mascarene Petrel Pseudobulweria aterrima存在严重的瓶颈，但遗传多样性仍然很高

Mascarene海燕Pseudobulweria aterrima是留尼汪岛特有的极度濒临灭绝的海鸟，极少的种群遭受多种威胁。从该物种中分离出15个多态微卫星基因座，以分析遗传多样性，估计当代有效种群规模，寻找种群瓶颈的证据，并查看结果是否支持以下假设：生活史特征可以保留小种群的等位基因多样性。来自22个因光污染而搁浅的个体的结果突显出令人惊讶的高遗传多样性，不存在近亲繁殖，当代有效种群规模估计约为1211个个体以及大约10,000代之前的瓶颈。