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European population trends and current conservation status of an endangered steppe-bird species: the Dupont’s lark Chersophilus duponti

机译:欧洲人口趋势和濒危草原鸟物种的当前保护状况:杜邦的百灵百鸟Chersophilus duponti

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摘要

BackgroundSteppe-birds face drastic population declines throughout Europe. The Dupont’s lark Chersophilus duponti is an endangered steppe-bird species whose European distribution is restricted to Spain. This scarce passerine bird could be considered an ‘umbrella species’, since its population trends may reveal the conservation status of shrub-steppes. However, trends for the Spanish, and thus European, population of Dupont’s lark are unknown. In this work, we evaluated Dupont’s lark population trends in Europe employing the most recent and largest compiled database to date (92 populations over 12 years). In addition, we assessed the species threat category according to current applicable criteria (approved in March 2017) in the Spanish catalogue of threatened species (SCTS), which have never been applied to the Dupont’s lark nor to any other Spanish species. Finally, we compared the resulting threat categories with the current conservation status at European, national and regional levels.
机译:背景草原鸟类在整个欧洲面临急剧减少的种群数量。杜邦的百灵鸟杜鹃(Chorsophilus duponti)是一种濒临灭绝的草原鸟类,其欧洲分布范围仅限于西班牙。这种稀有的雀形目鸟类可被视为“伞形物种”,因为其种群趋势可能揭示灌木草原的保护状况。但是,杜邦百灵鸟的西班牙人口以及欧洲人口的趋势尚不清楚。在这项工作中,我们使用迄今为止最新,规模最大的数据库(过去12年中的92个人口)评估了杜邦在欧洲的百灵鸟数量趋势。此外,我们根据西班牙受威胁物种目录(SCTS)中当前适用的标准(2017年3月批准)评估了物种威胁类别,该标准从未应用于杜邦百灵鸟和任何其他西班牙物种。最后,我们将由此产生的威胁类别与欧洲,国家和地区级别的当前保护状况进行了比较。

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