{"title":"2015年春天,斯洛文尼亚的红脚猎鹰(Falco vespertinus)","authors":"J. Hanžel","doi":"10.1515/acro-2015-0012","DOIUrl":null,"url":null,"abstract":"The Red-footed Falcon Falco vespertinus is widely distributed from eastern Europe to north central Asia, with its main European breeding populations (in descending order of size) in Russia, Ukraine, Romania and Hungary (Ferguson-Lees & Christie 2001, BirdLife International 2015). The species is a long distance migrant wintering in southern Africa from Angola and Zambia to northern South Africa (Ferguson-Lees & Christie 2001). It is known to migrate in a loop: flying along a broad front through the eastern Mediterranean in autumn and following a more westerly route in spring (Glutz von Blotzheim et al. 1989). Influxes of the species into western and central Europe are known to occur particularly in spring, when migration coincides with anticyclonic systems in eastern Europe (FergusonLees & Christie 2001). Meteorological conditions further south along the species' migration route could conceivably also play a role in these influxes, even though this hypothesis remains unproven. Recent large spring influxes took place in 2008 (Mayer & Kratzer 2009, Volet & Gerber 2009) and 1992 (Hagemeijer 1994, Nightingale & Allsopp 1994). In Slovenia, the species occurs regularly on migration, much more commonly in spring than in autumn (Tome et al. 2005, Bordjan & Božič 2009, Bordjan 2012). The spring migration of the species lasts from late April to early June with a peak in mid-May (Tome et al. 2005, Bordjan 2012). Based on limited data, the number of migrating Red-footed Falcons through Slovenia in spring was estimated at 500–2000 individuals (Denac et al. 2011). The highest numbers were observed at Lake Cerknica and Ljubljansko barje with highest daily counts of 1000 (Bordjan 2010) and 42 individuals (Tome et al. 2005), respectively. The seasonal totals are estimated at 300–1500 individuals","PeriodicalId":53560,"journal":{"name":"Acrocephalus","volume":"36 1","pages":"179 - 183"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"The influx of Red-footed Falcons Falco vespertinus in Slovenia in spring 2015\",\"authors\":\"J. Hanžel\",\"doi\":\"10.1515/acro-2015-0012\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Red-footed Falcon Falco vespertinus is widely distributed from eastern Europe to north central Asia, with its main European breeding populations (in descending order of size) in Russia, Ukraine, Romania and Hungary (Ferguson-Lees & Christie 2001, BirdLife International 2015). The species is a long distance migrant wintering in southern Africa from Angola and Zambia to northern South Africa (Ferguson-Lees & Christie 2001). It is known to migrate in a loop: flying along a broad front through the eastern Mediterranean in autumn and following a more westerly route in spring (Glutz von Blotzheim et al. 1989). Influxes of the species into western and central Europe are known to occur particularly in spring, when migration coincides with anticyclonic systems in eastern Europe (FergusonLees & Christie 2001). Meteorological conditions further south along the species' migration route could conceivably also play a role in these influxes, even though this hypothesis remains unproven. Recent large spring influxes took place in 2008 (Mayer & Kratzer 2009, Volet & Gerber 2009) and 1992 (Hagemeijer 1994, Nightingale & Allsopp 1994). In Slovenia, the species occurs regularly on migration, much more commonly in spring than in autumn (Tome et al. 2005, Bordjan & Božič 2009, Bordjan 2012). The spring migration of the species lasts from late April to early June with a peak in mid-May (Tome et al. 2005, Bordjan 2012). Based on limited data, the number of migrating Red-footed Falcons through Slovenia in spring was estimated at 500–2000 individuals (Denac et al. 2011). The highest numbers were observed at Lake Cerknica and Ljubljansko barje with highest daily counts of 1000 (Bordjan 2010) and 42 individuals (Tome et al. 2005), respectively. 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引用次数: 3
摘要
红足猎鹰(Falco vespertinus)广泛分布于东欧至中亚北部,其主要的欧洲繁殖种群(按大小递减顺序)分布在俄罗斯、乌克兰、罗马尼亚和匈牙利(Ferguson-Lees & Christie 2001, BirdLife International 2015)。该物种是一种从安哥拉和赞比亚到南非北部的长途候鸟,在非洲南部越冬(Ferguson-Lees & Christie 2001)。众所周知,它的迁徙路线是循环的:秋天沿着宽阔的锋线穿过地中海东部,春天沿着更西侧的路线飞行(Glutz von Blotzheim et al. 1989)。已知该物种流入西欧和中欧的情况尤其发生在春季,当时迁徙与东欧的反气旋系统相吻合(FergusonLees & Christie 2001)。可以想象,沿着物种迁徙路线向南的气象条件也可能在这些涌入中发挥作用,尽管这一假设尚未得到证实。最近的大规模春季流入发生在2008年(Mayer & Kratzer 2009, Volet & Gerber 2009)和1992年(Hagemeijer 1994, Nightingale & Allsopp 1994)。在斯洛文尼亚,该物种定期迁徙,春季比秋季更常见(Tome et al. 2005, Bordjan & Božič 2009, Bordjan 2012)。该物种的春季迁徙从4月下旬持续到6月初,5月中旬达到高峰(Tome et al. 2005, Bordjan 2012)。根据有限的数据,春季在斯洛文尼亚迁徙的红足猎鹰的数量估计为500-2000只(Denac et al. 2011)。切尔尼卡湖和卢布尔雅斯克barje的数量最高,日数量分别为1000只(Bordjan 2010)和42只(Tome et al. 2005)。季节性总数估计为300-1500只
The influx of Red-footed Falcons Falco vespertinus in Slovenia in spring 2015
The Red-footed Falcon Falco vespertinus is widely distributed from eastern Europe to north central Asia, with its main European breeding populations (in descending order of size) in Russia, Ukraine, Romania and Hungary (Ferguson-Lees & Christie 2001, BirdLife International 2015). The species is a long distance migrant wintering in southern Africa from Angola and Zambia to northern South Africa (Ferguson-Lees & Christie 2001). It is known to migrate in a loop: flying along a broad front through the eastern Mediterranean in autumn and following a more westerly route in spring (Glutz von Blotzheim et al. 1989). Influxes of the species into western and central Europe are known to occur particularly in spring, when migration coincides with anticyclonic systems in eastern Europe (FergusonLees & Christie 2001). Meteorological conditions further south along the species' migration route could conceivably also play a role in these influxes, even though this hypothesis remains unproven. Recent large spring influxes took place in 2008 (Mayer & Kratzer 2009, Volet & Gerber 2009) and 1992 (Hagemeijer 1994, Nightingale & Allsopp 1994). In Slovenia, the species occurs regularly on migration, much more commonly in spring than in autumn (Tome et al. 2005, Bordjan & Božič 2009, Bordjan 2012). The spring migration of the species lasts from late April to early June with a peak in mid-May (Tome et al. 2005, Bordjan 2012). Based on limited data, the number of migrating Red-footed Falcons through Slovenia in spring was estimated at 500–2000 individuals (Denac et al. 2011). The highest numbers were observed at Lake Cerknica and Ljubljansko barje with highest daily counts of 1000 (Bordjan 2010) and 42 individuals (Tome et al. 2005), respectively. The seasonal totals are estimated at 300–1500 individuals