Long-term winter food supplementation shows no significant impact on reproductive performance in Mountain Chickadees in the Sierra Nevada Mountains

Long-term winter food supplementation shows no significant impact on reproductive performance in Mountain Chickadees in the Sierra Nevada Mountains
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长期冬季食物补充对内华达山脉山雀的繁殖性能没有显着影响

DOI:
10.1093/ornithology/ukac051
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发表时间:
2022
期刊:
影响因子:
2.3
通讯作者:
Pravosudov, Vladimir V.
Pravosudov, Vladimir V.
中科院分区:
生物学3区
文献类型:
--
作者:
Sonnenberg, Benjamin R.;Welklin, Joseph F.;Branch, Carrie L.;Pitera, Angela M.;Benedict, Lauren M.;Heinen, Virginia K.;Kozlovsky, Dovid Y.;Bridge, Eli S.;Pravosudov, Vladimir V.

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对野生动物种群的补充喂养在世界许多地区很受欢迎,长期以来一直被认为是有益的,特别是对鸟类分类群。仅在美国,爱好喂鸟的人每年就花费了超过40亿美元。然而,关于野生动物饲养是否有益的证据喜忧参半,包括将其作为保护管理工具、有针对性的实验设计或业余爱好来实施。目前的许多证据表明,提供补充食物有利于局部类群的生殖产出和一般生存。然而,这些研究中的许多在范围和持续时间上都是有限的,没有解决可能的负面影响。在被动后院喂养方面尤其如此,它描述了大多数补充喂养,包括数百万公众爱好者的巨大努力。在这里,我们表明,在繁殖之前的冬季补充饲料对一种居住的山地雀鸟(Poecile Gambeli)的一系列生殖参数没有显著影响。这个种群生活在一个完整的自然环境中,除了我们的实验处理外,没有接触到补充食物,使用射频识别技术对每只鸟进行了六年的跟踪。我们的结果增加了越来越多的证据,即单独补充食物,脱离城市环境的影响,可能对一些鸟类分类群的种群动态影响很小,甚至没有影响。
Supplemental feeding of wild animal populations is popular across many areas of the world and has long been considered beneficial, especially to avian taxa. Over 4 billion dollars are spent by hobby bird feeders in the United States each year alone. However, there is mixed evidence whether wildlife feeding is beneficial, including when it is implemented as a conservation management tool, a targeted experimental design, or an avocation. Much of the current evidence suggests that providing supplemental food is advantageous to the reproductive output and general survival of focal taxa. However, many of these studies are limited in scope and duration, leaving possible negative impacts unaddressed. This is particularly true regarding passive backyard feeding, which describes the majority of supplemental feeding, including the immense effort of millions of public enthusiasts. Here we show that winter supplemental feeding prior to reproduction had no significant impact on a range of reproductive parameters in a resident, montane passerine species, the Mountain Chickadee (Poecile gambeli). This population resides in an intact natural environment with no exposure to supplemental food beyond our experimental treatments, and individual birds were tracked across six years using radio frequency identification technology. Our results add to the growing evidence that supplemental feeding alone, isolated from the effects of urban environments, may have little to no impact on the population dynamics of some avian taxa.
DOI: 10.1007/s00265-020-2817-2
发表时间: 2020-03-11
影响因子: 2.3
作者:
Benedict, L. M.;Pitera, A. M.;Pravosudov, V. V.
通讯作者: Pravosudov, V. V.
生产者-消费者模型中的营养和密度依赖性效应
DOI: --
发表时间: 1984
期刊:
影响因子: --
作者:
M. Antonios;T. Hallam
通讯作者: T. Hallam
补充饲喂对缅因州中部越冬黑顶山雀 (POECILE ATRICAPILLA) 的影响:种群数量和个体反应
DOI: --
发表时间: 2001
期刊:
影响因子: --
作者:
W. Wilson
通讯作者: W. Wilson
冬季食品供应可降低野生鸟的未来繁殖表现。
DOI: 10.1038/srep02002
发表时间: 2013
期刊: Scientific reports
影响因子: 4.6
作者:
Plummer KE;Bearhop S;Leech DI;Chamberlain DE;Blount JD
通讯作者: Blount JD
DOI: 10.1016/j.ecolecon.2012.07.016
发表时间: 2013-02-01
影响因子: 7
作者:
Goddard, Mark A.;Dougill, Andrew J.;Benton, Tim G.
通讯作者: Benton, Tim G.