动物学研究2013，Vol.34Issue(1)：8-13,6.DOI:10.3724/SP.J.1141.2013.01008
短嘴金丝燕回声定位叫声特征
Echolocation calls of free-flying Himalayan swiftlets (Aerodramus brevirostris)
摘要
Abstract
Here, we present our findings of free-flying echolocation calls of Himalayan swiftlets (Aerodramus brevirostris), which were recorded in Shenjing Cave, Hupingshan National Reserve, Shimen County, Hunan Province in June 2012, using Avisoft-UltraSoundGate 116(e). We noted that after foraging at dusk, the Himalayan swiftlets flew fast into the cave without clicks, and then slowed down in dark area in the cave, but with sounds. The echolocation sounds of Himalayan swiftlets are broadband, double noise burst clicks, separated by a short pause. The inter-pulse intervals between double clicks (99.3±3.86 ms) were longer than those within double clicks (6.6±0.42 ms) (P<0.01). With the exception of peak frequency, between 6.2±0.08 kHz and 6.2±0.10 kHz, (P>0.05) and pulse duration 2.9±0.12 ms, 3.2±0.17 ms, (P>0.05) between the first and second, other factors-maximum frequency, minimum frequency, frequency bandwidth, and power-were significantly different between the clicks. The maximum frequency of the first pulse (20.1±1.10 kHz) was higher than that of second (15.4±0.98 kHz) (P<0.01), while the minimum frequency of the first pulse (3.7±0.12 kHz) was lower than that of second (4.0±0.09 kHz) (P<0.05); resulting in the frequency bandwidth of the first pulse (16.5±1.17 kHz) longer than that of second (11.4±1.01 kHz) (P<0.01). The power of the first pulse (-32.5±0.60 dB) was higher than that of second (-35.2±0.94 dB) (Ρ<0.05). More importantly, we found that Himalayan swiftlets emitted echolocation pulses including ultrasonic sound, with a maximum frequency reaching 33.2 kHz.关键词
短嘴金丝燕/回声定位叫声/超声波/脉冲组Key words
Aerodramus brevirostris/ Echolocation/ Ultrasonic sound/ Double clicks分类
生物科学引用本文复制引用
王斌,马建章,陈毅,谭梁静,刘奇,沈琪琦,廖庆义,张礼标..短嘴金丝燕回声定位叫声特征[J].动物学研究,2013,34(1):8-13,6.基金项目
广东省昆虫研究所优秀青年人才基金(GDEI-yxqn201101) （GDEI-yxqn201101）
广州市珠江科技新星专项(2011J2200027) （2011J2200027）
