We analyzed the advertisement call of Paa spinosa at Yuliang Mountain,Lanxi,Zhejiang Province,in eastern China.Temporal and spectral call parameters were analyzed,along with call intensity.Calls comprised of three to ...We analyzed the advertisement call of Paa spinosa at Yuliang Mountain,Lanxi,Zhejiang Province,in eastern China.Temporal and spectral call parameters were analyzed,along with call intensity.Calls comprised of three to seven notes,the last of which had the longest duration.Three formants(harmonics)were clearly distinguishable from the audio spectrogram.The dominant frequency ranged from 411-1534 Hz,and was either the first or the second formant.The number of notes within a call was positively correlated to air temperature,so that calls contained more notes during the day.Also,the dominant frequency appeared to be lower at the highest temperature.展开更多
We studied the distribution and density of the endocrine cells in the digestive tract of Paa spinosa using immunohistochemical method (streptavidin peroxidase method) using eight gut hormone antisera. The 5 hydroxytry...We studied the distribution and density of the endocrine cells in the digestive tract of Paa spinosa using immunohistochemical method (streptavidin peroxidase method) using eight gut hormone antisera. The 5 hydroxytryptamine immunoreactive cells were distributed throughout the digestive tract with the highest density in the stomachus pyloricus, the second highest in the duodenum, fewer in the oesophagus, stomachus cardiacus and rectum. The gastrin immunoreactive cells were located mainly in the stomachus pyloricus and occasionally in different parts of the intestine. The somatostatin immunoreactive cells occured mainly in the stomach, frequently in the stomachus pyloricus, and occasionally in different parts of the intestine. The pancreatic polypeptide immunoreaetive cells were found with the highest density in the duodenum, the second highest in the stomachus cardiacus, and rarely in the rectum. No immunoreactive cells were observed with the antisera to glucagon, substance P, growth hormone and calcitonin. but there were glucagon and substance P mucosal nerve plexus throughout the digestive tract, and both with the highest density in the duodenum .展开更多
基金supported by the Science Technology Commission of Zhejiang Province of China(No.2006C22031)
文摘We analyzed the advertisement call of Paa spinosa at Yuliang Mountain,Lanxi,Zhejiang Province,in eastern China.Temporal and spectral call parameters were analyzed,along with call intensity.Calls comprised of three to seven notes,the last of which had the longest duration.Three formants(harmonics)were clearly distinguishable from the audio spectrogram.The dominant frequency ranged from 411-1534 Hz,and was either the first or the second formant.The number of notes within a call was positively correlated to air temperature,so that calls contained more notes during the day.Also,the dominant frequency appeared to be lower at the highest temperature.
文摘We studied the distribution and density of the endocrine cells in the digestive tract of Paa spinosa using immunohistochemical method (streptavidin peroxidase method) using eight gut hormone antisera. The 5 hydroxytryptamine immunoreactive cells were distributed throughout the digestive tract with the highest density in the stomachus pyloricus, the second highest in the duodenum, fewer in the oesophagus, stomachus cardiacus and rectum. The gastrin immunoreactive cells were located mainly in the stomachus pyloricus and occasionally in different parts of the intestine. The somatostatin immunoreactive cells occured mainly in the stomach, frequently in the stomachus pyloricus, and occasionally in different parts of the intestine. The pancreatic polypeptide immunoreaetive cells were found with the highest density in the duodenum, the second highest in the stomachus cardiacus, and rarely in the rectum. No immunoreactive cells were observed with the antisera to glucagon, substance P, growth hormone and calcitonin. but there were glucagon and substance P mucosal nerve plexus throughout the digestive tract, and both with the highest density in the duodenum .
