已为您找到该学者14条结果 成果回收站
-
0浏览
-
0点赞
-
0收藏
-
0分享
-
1下载
-
0
-
引用
冯江, 冯江①, 李振新①, 周江②, 赵辉华③, 张树义③
,-0001,():
-1年11月30日
When they are flying,Great evening bat (La io) produces shout FM echolocation calls including three harmomics,of which the first one and the second one are stronger.As they fly,the first harmonic is modulated from 49.0 to 18.3kHz, the second one is modulated from 80.0 to 35.6kHz, and the third one from 87.2 to 56.7.The average duration of the calls is 3.7m. It waspredicted that Great evening bat (La io) captures big insects in the open area among foliages according to the sound characteristic analysis of echolocation calls and the analysis comparing with the echolocation calls of other bats that perch in the same cave.
南蝠(Ia io),, 回声定位叫声,, 调频信号,, 谐波,, 捕食策略
-
0浏览
-
0点赞
-
0收藏
-
0分享
-
0下载
-
0
-
引用
【期刊论文】Relationship between echolocation frequency and body size in two species of hipposiderid bats
冯江, ZHANG Shuyi, ZHAO Huihua, FENG Jiang, SHENG Lianxi, WANG Hui, & WANG Lixin
Chinese Science Bulltin Vol. 45 No.17 September 2000,-0001,():
-1年11月30日
Frequencies of echolocation calls with maximum power of Himalayan leaf-nosed bats and Horsfield's leaf-nosed bats during searching phase were 74.1 and 92.1kHz, respectively. Head-body length, forearm length and body mass of Himalayan leaf-nosed bats were 82.9mm, 89.7mm and 59.1g, respectively; and the corresponding values of Horsfield's leaf-nosed bats were 68.4mm, 61.3mm and 19.7g, respectively. Echolocation frequency and the three parameters of body size, head-body length, forearm length and body mass, were all negatively correlated, and the correlation coefficients were -0.86, -1.58 and 2.19, respectively. This study thereby proved that echolocation frequency and body size were negatively correlated in the two species of hipposiderid bats.
Himalayan leaf-nosed bats (, Hipposideros armiger), ,, Horsfield', s leaf-nosed bats (, Hipposideros larvatus), ,, echolocation calls,, body size.,
-
0浏览
-
0点赞
-
0收藏
-
0分享
-
0下载
-
0
-
引用
冯江, 张树义①赵辉华①, 冯江②, 盛连喜⑦, 李振新②, 王立新③
科学通报,2000,45,(5):526~528,-0001,():
-1年11月30日
长尾鼠耳蝠在飞行状态下发出的回声定位叫声为短调频型。叫声包括3个谐波,其中第1谐波最强且出现于所有的叫声中,频率起始于110.8:kHz,结束于50.2:kHz,持续3.5ms。第2,3谐波较弱,分别出现于50.0%和25.0%的叫声中,调频范围为138.4-116.6和193.6~170.8kHz。根据回声定位叫声的特点,推断长尾鼠耳蝠是在复杂环境中捕食地面昆虫
长尾鼠耳蝠(, Myoasfrater), , 回声定位叫声, 调频信号, 飞行谐波
-
0浏览
-
0点赞
-
0收藏
-
0分享
-
0下载
-
0
-
引用