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Articles by ZHANG Li-Biao
Total Records ( 4 ) for ZHANG Li-Biao
  ZHU Guang-jian , Han Nai-jian , HONG Ti-yu , TAN Min , YU Dong-mei and ZHANG Li-biao
  One male bat was captured by mist-net on a telegraph pole in the Li Autonomous County, Hainan Island in November 2007. It was identified as Nyctalus plancyi (Chiroptera: Vespertilionidae) based on the morphological data and mitochondrial ND1 gene sequence, and presented as the first record from Hainan Island. N. plancyi, which roosted daily on a telegraph pole in Hainan Island, emitted a pulse with an energy frequency between 33 - 34 kHz, and pulse duration between 1.3-1.9 ms, maximum identity based on ND1 sequence analysis between Hainan Island and Sichuan was 99%.
  WEI Li , RU Bing-hua , ZHOU Ying-ying , SHAO Wei-wei , ZHANG Li-biao , HONG Tiyu , ZHOU Shan-yi and MA Jie
  Postnatal developments of morphological features (forearm and body mass) and vocalization (call frequencies and durations) of Rhinolophus pusillus were studied in the Jishui Cave of Guilin City from May 31st to July 20th 2006. The morphological changes indicated that infants of R. pusillus grew significantly in the postnatal three weeks and then gradually slowed down. Both forearm length and body weight were significantly correlated with the growing of age. Durations of infants’ calls were fairly variable and longer than those of adults. No significant correlation was found between the duration and age. Spectral characteristics indicated that the calls produced by infants had rather variable spectrums, unstable frequencies, and multiple harmonics in the first 20 days after birth. Infants over three weeks old mostly emitted FM-CF-FM type calls. Frequencies of first harmonics were significantly correlated with their age but the second harmonics did not correlate with age. The call frequencies of the young five-week-old bats were similar with their adults. The call frequency had a significant linear correlation with forearm length. Our findings indicated that the high flexible vocal cord and undeveloped nasal chamber might affect the vocalization veracity of new born infants.
  Zeng Yu , Zhang Xin-Wen , Zhu Guang-Jian , Gong Yan-Yan , Yang Jian and Zhang Li-Biao
  In order to study the relationship between landmarks and spatial memory in short-nosed fruit bat, Cynopterus sphinx (Megachiroptera, Pteropodidae), we simulated a foraging environment in the laboratory. Different landmarks were placed to gauge the spatial memory of C. sphinx. We changed the number of landmarks every day with 0 landmarks again on the fifth day (from 0, 2, 4, 8 to 0). Individuals from the control group were exposed to the identical artificial foraging environment, but without landmarks. The results indicated that there was significant correlation between the time of the first foraging and the experimental days in both groups (Pearson Correlation: experimental group: r=-0.593, P<0.01; control group: r=-0.581, P<0.01). There was no significant correlation between the success rates of foraging and the experimental days in experimental groups (Pearson Correlation: r=0.177, P>0.05), but there was significant correlation between the success rates of foraging and the experimental days in the control groups (Pearson Correlation: r=0.445, P<0.05). There was no significant difference for the first foraging time between experimental and control groups (GLM: F0.05,1=4.703, P>0.05); also, there was no significant difference in success rates of foraging between these two groups (GLM: F0.05,1=0.849, P>0.05). The results of our experiment suggest that spatial memory in C. sphinx was formed gradually and that the placed landmarks appeared to have no discernable effects on the memory of the foraging space.
  WANG Xu-Zhong , HU Kai-Liang , WEI Li , XU Dong and ZHANG Li-Biao
  We used the pendulum device to study Doppler-shifted compensation ofgreat leaf-nosed bat(Hipposideros armiger). The bats’ echolocation calls were recorded by the Ultrasound Detector both under the rest condition and Doppler shift condition. Then we analyzed the calls with Avisoft software. Our results suggested that when H. armiger was approaching the target, it showed positive Doppler shift compensation: call frequency and the velocity (v) were positive correlated. Call frequency fell to minimum when the bats’ relative velocity reached to maximum; likewise call frequency raised to the resting condition frequency when the relative velocity became zero. Negative Doppler shift compensation occurred when bats were far away from the target. Under negative Doppler shift compensation condition, we found call frequency and velocity were positive correlated as well, and moreover, call frequency raised to maximum again while the bats had their minus direction’s maximal relative velocity. However, under this status, the elevated value was much lower than the depressed value under positive compensation at the same velocity. The frequency of occurrence of negative compensation was obviously less frequent than that under positive compensation condition. Therefore, we inferred that the two characteristics of the negative Doppler shift compensation mentioned above may be the coactions consequence of the bio-structural restriction and natural selection.
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