Artificial Nests for the Saker Falcon in Mountainous Steppes of Southern Siberia – Platforms or Nestboxes?

I. Karyakin, E. G. Nikolenko, E. P. Shnayder, O.V. Shiriaev
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Abstract

Installing artificial nests is a widely used method of managing wild bird populations around the world that allows to increase their numbers and/or productivity and breeding success. Among raptors this method is mostly used for small falcons and owls; however, artificial nests are also repeatedly used to attract such a rare species as the Saker Falcon (Falco cherrug) for breeding. We deployed a system of artificial nesting to restore the Saker Falcon population in former agrocenoses of Siberian mountain steppe and forest-steppe, which had not been used for agriculture since the collapse of the Soviet Union in 1991. Since 2006 our experiment showed a systematic increase in the Saker Falcon numbers from 1 to 47 pairs. Before 2018 we only used open platforms, and after 2018 we began to install nestboxes, so in the article we can compare birds' response to open and closed nests. We evaluate the artificial nesting impact on Saker Falcon population growth, as well as a number of other raptor species. We also describe the phenomenon of a sharp increase in the number of all raptor species in 2020–2021, attributing this to the impact of the COVID-19 pandemic.
南西伯利亚山区草原上的萨克猎鹰的人工巢穴——平台还是巢箱?
安装人工鸟巢是世界各地广泛使用的一种管理野生鸟类种群的方法,可以增加它们的数量和/或生产力和繁殖成功率。在猛禽中,这种方法主要用于小型猎鹰和猫头鹰;然而,人工巢穴也被反复用于吸引像萨克猎鹰(Falco cherrug)这样的稀有物种进行繁殖。我们在西伯利亚山地草原和森林草原的前农业群落中部署了一个人工筑巢系统,以恢复Saker Falcon的种群数量,这些地区自1991年苏联解体以来一直没有用于农业。自2006年以来,我们的实验显示,Saker Falcon的数量从1对系统地增加到47对。在2018年之前我们只使用开放式平台,2018年之后我们开始安装巢箱,所以在文章中我们可以比较鸟类对开放式和封闭式鸟巢的反应。我们评估了人工筑巢对Saker Falcon种群增长的影响,以及其他一些猛禽物种。我们还描述了2020-2021年所有猛禽物种数量急剧增加的现象,并将其归因于COVID-19大流行的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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