Association of weather variables with the migration phenology and body conditions of Siberian warblers

IF 1 4区 生物学 Q2 ORNITHOLOGY Ornis Fennica Pub Date : 2022-01-14 DOI:10.51812/of.113447
L. Bozó, Y. Anisimov, T. Csörgő
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Abstract

Different elements of weather, such as wind speed, wind direction, precipitation and temperature are very important regulators of bird migration. Weather conditions also play role on the body condition such as body mass and the deposited fat. In this study we selected four warbler species to examine the impact of different weather variables on their spring and autumn migration timing and their body condition in one of the most extreme weather areas of the Earth, at Lake Baikal in Siberia. We also studied the changes in body mass and fat reserves during the spring and autumn migration periods of these species. For the analyses, we used ringing data of 2471 birds from five spring and five autumn seasons during 2015–2019. According to our results, it can be stated that the weather did not have a significant association with the migration timing of the studied warblers, perhaps due to the geographical location of the study site. However, the body mass and the fat reserves of the birds increased during unsuitable weather conditions because of the increased energy requirements. Birds generally migrate with low fat reserves, which is due to the fact that this area is not an important stopover site for these species.
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天气变量与西伯利亚莺迁徙表型和身体状况的关系
不同的天气因素,如风速、风向、降水和温度,都是鸟类迁徙的重要调节因素。天气状况对身体状况也有影响,比如体重和堆积的脂肪。在这项研究中,我们选择了四种莺,在西伯利亚贝加尔湖,研究了不同天气变量对它们春秋迁徙时间和身体状况的影响,这是地球上最极端的气候地区之一。我们还研究了这些物种在春季和秋季迁徙期间的体重和脂肪储备的变化。为了进行分析,我们使用了2015-2019年五个春季和五个秋季的2471只鸟的鸣叫数据。根据我们的研究结果,可以这样说,天气与研究的莺的迁徙时间没有显著的关联,这可能是由于研究地点的地理位置。然而,在不适宜的天气条件下,由于能量需求的增加,鸟类的体重和脂肪储备增加了。鸟类通常以低脂肪储备迁徙,这是因为该地区不是这些物种的重要中途停留地。
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来源期刊
Ornis Fennica
Ornis Fennica 生物-鸟类学
CiteScore
2.00
自引率
0.00%
发文量
14
审稿时长
>12 weeks
期刊介绍: Ornis Fennica is a peer-reviewed international ornithological journal published by BirdLife Finland. Ornis Fennica publishes analytical and experimental papers on the ecology, behaviour and biogeography of birds. Ornis Fennica prefers studies concerning Fennoscandian species, but other novel contributions of general interest are most welcome as well. Ornis Fennica is an open-access journal without page charges for publication. All published articles (from 1924 onwards) are freely available from the journal website. First decisions are usually made within three months of submission.
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