鸟类迁徙对图们江下游湿地声景时间格局的影响
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王士政, 孙翊斐, 李珍珍, 舒越, 冯佳伟, 王天明
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Effects of bird migration on the temporal patterns of the wetland soundscape in the downstream region of the Tumen River Basin of China
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Shizheng Wang, Yifei Sun, Zhenzhen Li, Yue Shu, Jiawei Feng, Tianming Wang
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表2 一年中各时段4种声学指数的Kruskal-Wallis检验
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Table 2 Kruskal-Wallis test of four acoustic indices for different periods
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| 声学指数 Acoustic indices | 2-4月 Feb.-Apr. | 5-7月 May-July | 8-9月 Aug.-Sept. | 10-11月 Oct.-Nov. | 12月至次年1月 Dec.-Jan. | P | | 声音复杂度指数 Acoustic complexity index (ACI) | 4,530.52 ± 17.78a | 4,622.86 ± 28.88a | 4,523.64 ± 22.69a | 4,449.51 ± 7.54b | 4,413.08 ± 7.26b | < 0.001 | | 生物声学指数 Bioacoustic index (BIO) | 10.38 ± 0.48c | 12.22 ± 0.47b | 14.15 ± 0.52a | 8.32 ± 0.19d | 7.15 ± 0.20e | < 0.001 | | 声音均匀度指数 Acoustic evenness index (AEI) | 0.90 ± 0.01b | 0.83 ± 0.01c | 0.78 ± 0.01d | 0.90 ± 0.01b | 0.92 ± 0.01a | < 0.001 | | 标准化声景差异指数 Normalized difference soundscape index (NDSI) | -0.04 ± 0.07c | 0.46 ± 0.05b | 0.88 ± 0.01a | 0.10 ± 0.06c | 0.40 ± 0.04b | < 0.001 |
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