普通椋鸟(Sturnus vulgaris)季节性地在奶牛场过夜

Q4 Agricultural and Biological Sciences Western Birds Pub Date : 2023-05-02 DOI:10.3390/birds4020018
C. Lichtenwalter, K. Steensma, M. Marcondes, Kyle Taylor, C. McConnel, Amber Adams Progar
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引用次数: 0

摘要

普通椋鸟(Sturnus vulgaris)是北美的一种入侵鸟类,会对奶牛场造成破坏。椋鸟过夜栖息在奶牛场的建筑物里,在奶牛、饲料和供应品上排便。为了有效地阻止椋鸟栖息,农民必须知道一年中椋鸟数量最多的时候。为了检验季节性,我们分析了两个数据集。首先,在2016年9月和10月的四周时间里,在华盛顿沃特科姆县的10个奶牛场的日出和日落时,对鸟类进行了20-30分钟的计数。在最后一周的观察中,椋鸟的数量比第一周、第二周和第三周都要多。其次,在2021年冬季和2022年春夏,在华盛顿州和爱达荷州帕卢斯地区的两个奶牛场,在日落时对鸟类进行了四周的计数。随着气温和日照时间的减少,鸟类数量增加。季节也有影响,冬季和春季的鸟类数量比夏季多。这些数据集结合起来表明,欧椋鸟将奶牛场作为夜间栖息的季节性场所。有了这些信息,美国的农民就会知道在夏天联系野生动物管理人员,这样就可以在秋季建立栖息地之前制定一项威慑椋鸟的战略。
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Seasonal Use of Dairies as Overnight Roosts by Common Starlings (Sturnus vulgaris)
The Common starling (Sturnus vulgaris) is an invasive bird species in North America that can cause damage to dairies. Starlings roost in structures on dairies overnight, defecating on cows, feed, and supplies. To target roosts for effective deterrence, farmers must know what times of the year starling populations are greatest. To test seasonality, two data sets were analyzed. First, birds were counted for 20–30 min at sunrise and sunset on 10 Whatcom County, Washington dairies over four weeks in September and October of 2016. Starling counts were greater in the last week of observations than in weeks one, two, and three. Second, birds were counted at sunset for four weeks during winter 2021 and spring and summer 2022 at two dairies in the Palouse region of Washington State and Idaho. As temperature and minutes of daylight decreased, bird abundance increased. There was also an effect of season, with more birds counted in winter and spring than in summer. These data sets combined suggest a seasonal use of dairies as night roosts by starlings. With this information, farmers in the United States will know to contact wildlife managers in the summer, so a starling deterrence strategy can be developed before roosts are established in the fall.
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来源期刊
Western Birds
Western Birds Agricultural and Biological Sciences-Animal Science and Zoology
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