Echolocation calls of 10 Chinese rhinolophid species were recorded to investigate the relationship between morphology and echolocation signals. All horseshoe bats use FM-CF-FM calls. Rhinolophus rex calls at 23.7 kHz,...Echolocation calls of 10 Chinese rhinolophid species were recorded to investigate the relationship between morphology and echolocation signals. All horseshoe bats use FM-CF-FM calls. Rhinolophus rex calls at 23.7 kHz, the lowest frequency in this genus. Call frequency was not correlated with body mass (P=0.200, 9 species). Close negative relationships were found between call frequency and ear length (r=-0.942, P<0.001) and also between call frequency and forearm length (r=-0.696, P<0.05). Residual analysis was carried out to remove the influence of other morphological features. After calculating ear length, forearm length residuals were not significantly related to call frequency (r=-0.095, P=0.808). The significance of the correlation between ear length and call frequency was slightly lowered (r=-0.642, P=0.062) after “removing” the influence of forearm length. Ear length, therefore, was a better predictor of call frequency than forearm length [Acta Zoologica Sinica 49(1):128-133,2003].展开更多
目的:为了观察儿童双骨肢体单骨骨折后的过度生长。方法:对前臂单骨骨折179例(不包括孟氏骨折、盖氏骨折及骨骺损伤),小腿单骨骨折123例(不包括骨骺损伤),进行了5～6年的随访,平均7.5年。对比测量了双侧 X 线片中的尺、桡骨长度、胫腓...目的:为了观察儿童双骨肢体单骨骨折后的过度生长。方法:对前臂单骨骨折179例(不包括孟氏骨折、盖氏骨折及骨骺损伤),小腿单骨骨折123例(不包括骨骺损伤),进行了5～6年的随访,平均7.5年。对比测量了双侧 X 线片中的尺、桡骨长度、胫腓骨长度、桡尺角、桡骨内倾角、桡骨头线、肱骨小头的位置以及踝关节正位片,并对腕、肘关节、踝关节活动进行了对比。结果:前臂有4例,小腿有7例较对侧长2～4mm。前臂、腕、肘关节及踝关节活动无异常。结论:前臂是双骨均衡支撑肢体,小腿虽以胫骨负重为主,但单骨骨折后另一骨同样可起支撑作用,因此均不会出现明显的过度生长。展开更多
文摘Echolocation calls of 10 Chinese rhinolophid species were recorded to investigate the relationship between morphology and echolocation signals. All horseshoe bats use FM-CF-FM calls. Rhinolophus rex calls at 23.7 kHz, the lowest frequency in this genus. Call frequency was not correlated with body mass (P=0.200, 9 species). Close negative relationships were found between call frequency and ear length (r=-0.942, P<0.001) and also between call frequency and forearm length (r=-0.696, P<0.05). Residual analysis was carried out to remove the influence of other morphological features. After calculating ear length, forearm length residuals were not significantly related to call frequency (r=-0.095, P=0.808). The significance of the correlation between ear length and call frequency was slightly lowered (r=-0.642, P=0.062) after “removing” the influence of forearm length. Ear length, therefore, was a better predictor of call frequency than forearm length [Acta Zoologica Sinica 49(1):128-133,2003].
文摘目的:为了观察儿童双骨肢体单骨骨折后的过度生长。方法:对前臂单骨骨折179例(不包括孟氏骨折、盖氏骨折及骨骺损伤),小腿单骨骨折123例(不包括骨骺损伤),进行了5～6年的随访,平均7.5年。对比测量了双侧 X 线片中的尺、桡骨长度、胫腓骨长度、桡尺角、桡骨内倾角、桡骨头线、肱骨小头的位置以及踝关节正位片,并对腕、肘关节、踝关节活动进行了对比。结果:前臂有4例,小腿有7例较对侧长2～4mm。前臂、腕、肘关节及踝关节活动无异常。结论:前臂是双骨均衡支撑肢体,小腿虽以胫骨负重为主,但单骨骨折后另一骨同样可起支撑作用,因此均不会出现明显的过度生长。
