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| 1 | Age and Body Size of the Shangcheng Stout Salamander Pachyhynobius shangchengensis(Caudata:Hynobiidae)from Southeastern China显示文摘Age and body size a re critical for understanding life history evolution and ecology.In this study,the age and body size of the Shangcheng stout salamander,Pachyhynobius shangchengensis,from a population in Anhui Province,China,were studied by skeletochronology.The mean age was 8.8±0.2(mean±SD)years in females and 9.6±0.2 in males and ranged 5-13 years for both sexes.The mean age was significantly different between sexes.The mean body size and mass were(100.21±0.91)mm and(31.76±0.73)g in females,and(105.31±1.23)mm and(37.14±1.12)g in males,respectively.Males were significantly larger and heavier than females,indicating sexual size dimorphism.There was a significant positive correlation among body size,body mass,and age,suggesting that the oldest individuals are larger and heavier.The growth rate in males was significantly higher than in females.The present study provides preliminary data on life-history traits which can be helpful for future studies of this species and other hynobiid salamanders. | Jianli XIONG Jianping GOU Yong HUANG Baowei ZHANG Hongtao REN Tao PAN | 2020 | Asian Herpetological Research2020，11，3： | 2 |
| 2 | 基于骨龄学方法鉴定大别山商城肥鲵的年龄显示文摘2014年4月—2018年8月,在大别山鹞落坪国家级自然保护区内采集50只中国特有物种商城肥鲵(Pachyhynobius shangchengensis)个体,采用常规石蜡切片法对其肱骨、股骨、指骨和趾骨各骨节等骨质材料进行年龄鉴定并比较其年轮特征,根据体长分布频率数据初步确定其年龄为参照,比较肱骨、股骨、指骨和趾骨各骨节在年龄鉴定读数中的精确性和准确性,以确定适合的年龄鉴定材料。同时以剪切脚趾作为标记,根据野外重捕获得的硬骨组织材料进行骨龄鉴定,验证年龄鉴定的准确性和年龄组划分的合理性。结果表明:趾骨的总精确度和总准确性均最高,股骨次之,肱骨最小;小于8龄的个体,骨切片年轮线清晰,骨龄学法适用于该物种的年龄鉴定,分析认为后肢第三、第四趾第2骨节是鉴定商城肥鲵年龄的最佳材料。通过分析野外商城肥鲵的生长规律发现,年龄与体重、体长和头长具有显著相关性,相关系数分别为0.975、0.945和0.97,8龄后这种相关性有降低趋势。 | 陈玉翠 陈锦云 | 2021 | 生态学杂志2021，40，10： | 1 |
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