南极洲南设得兰群岛企鹅岛上的鸟类分布和流动种群

M. Petry, C. R. Santos, G. Werle, G. Aver
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摘要

了解鸟类的丰度和分布对于评估物种的潜在种群变化以及这种变化如何影响它们的保护是极其重要的。这项研究的目的是绘制在企鹅岛上筑巢的物种的繁殖和分布图(62006 ' 15 " S;在2011/2012年和2012/2013年,对每一物种繁殖对的丰度进行了评估,并将这些数据与之前的研究进行了比较。在全球定位系统接收器的协助下,研究人员确定了在该地点筑巢的繁殖鸟类的位置。收集到的数据在ArcGIS软件中进行处理,绘制出每个物种的分布图和繁殖区。对2011/12和2012/13夏季的繁殖对进行了普查。2011/12年度在企鹅岛上记录到6618对南极小圆蝽,2012/13年度记录到4657对。在2011/12年度共观察到183对阿德利拟圆虱(Pygoscelis adelae)。在2011/12年度,巨颈巨鹭的繁殖期为138对,而在2012/13年度为418对。下列物种的巢也被发现:Oceanites oceanicus、Chionis albus、Stercorarius lonnbergi、Larus dominicanus和Sterna vitatta。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DISTRIBUTION AND FLOATING POPULATION OF BIRDS ON PENGUIN ISLAND, SOUTH SHETLANDS, ANTARCTICA
Knowledge on the abundance and distribution of birds is extremely important for the assessment of potential population uctuations of species and for how such uctuations may a ect their conservation. is study aims to perform the mapping of breeding and distribution of species that nested on Penguin Island (62o06’15’’S; 57o55’30’’W) in 2011/2012 and 2012/2013, as well as to assess the abundance of breeding pairs for each species and compare these data with those of previous studies. e location of breeding groups of birds nesting on the site was geo-referenced with the assistance of a GPS receiver. e data collected were processed in the ArcGIS so ware program to draw a map with the distribution and breeding areas for each species. A census of breeding pairs for the summers of 2011/12 and 2012/13 was also conducted. We recorded 6618 breeding pairs of Pygoscelis antarcticus on Penguin Island in 2011/12 and 4657 breeding pairs in 2012/13. Regarding Pygoscelis adeliae, 183 breeding pairs were observed in 2011/12. With respect to Macronectes giganteus, 138 breeding pairs were observed in 2011/12, whereas 418 pairs were recorded in 2012/13. Nests of the following species were also found Oceanites oceanicus, Chionis albus, Stercorarius lonnbergi, Larus dominicanus, and Sterna vitatta.
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