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Cape Vulture Gyps coprotheres breeding status in southern Africa: monitoring results from 2010-2014

机译:Cape Vulture Gyps共同保护南部非洲的繁殖状况:2010-2014年的监测结果

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摘要

Monitoring of eight Cape Vulture Gyps coprotheres breeding colonies in South Africa and Botswana took place between 2010 and 2014 using standardised counting methods. Counts of breeding pairs, nestlings and fledglings were used to calculate breeding success and general population trends. While our data suggests multiple colonies are stable or increasing, the extinction of peripheral colonies and contraction of the species' range is alarming and gives evidence for unsustainable population declines. Monitoring efforts chronicled the extinction of the previously large core colony at Roberts' Farm, which was abandoned as a breeding site in 2013. Standardised monitoring is urgently needed across the entire species range to better understand current population dynamics.
机译:在2010年至2014年之间,使用标准化计数方法对南非和博茨瓦纳的8个秃鹰吉普斯共同繁殖种群进行了监测。繁殖对,雏鸟和雏鸟的数量用于计算繁殖成功率和总体种群趋势。尽管我们的数据表明多个殖民地是稳定的或在增加,但周边殖民地的灭绝和物种范围的缩小令人震惊,并为不可持续的种群减少提供了证据。监测工作记录了罗伯茨农场先前大型核心殖民地的灭绝,该殖民地于2013年被废弃为繁殖地点。迫切需要对整个物种范围进行标准化监测,以更好地了解当前的种群动态。

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