To investigate differences of size and shape of skulls among rodent species and between male and female,we radiographed specimens and measured parameters of skulls of three species(Tscherskia triton,Cricetulus baraben...To investigate differences of size and shape of skulls among rodent species and between male and female,we radiographed specimens and measured parameters of skulls of three species(Tscherskia triton,Cricetulus barabensis and Apodemus agrarius) collected from the Raoyang country,Hebei Province,China.The data was analyzed with MANOVA in general linear models by SPSS 13.0 for windows.The results showed that:The three rodent species were significantly different in SL,SW,GBS,FL,RBCL,RSL,RSW and RFL.SL,SW and GBS of Cricetulus barabensis were smaller than other two species.Tscherskia triton had dumpy skull according as the ratio of skull length and skull width was smallest among the three species.Male and female were different in SL,SW,RSW and RFL.Males were larger than female in many parameters of skull relative size.Species and sex factors had interaction effect on SL,GBS,GBS/SW and BCL/SW.The observed differences of skull size and shape among the three species and between genders can be used to distinguish the species and gender.展开更多
文摘To investigate differences of size and shape of skulls among rodent species and between male and female,we radiographed specimens and measured parameters of skulls of three species(Tscherskia triton,Cricetulus barabensis and Apodemus agrarius) collected from the Raoyang country,Hebei Province,China.The data was analyzed with MANOVA in general linear models by SPSS 13.0 for windows.The results showed that:The three rodent species were significantly different in SL,SW,GBS,FL,RBCL,RSL,RSW and RFL.SL,SW and GBS of Cricetulus barabensis were smaller than other two species.Tscherskia triton had dumpy skull according as the ratio of skull length and skull width was smallest among the three species.Male and female were different in SL,SW,RSW and RFL.Males were larger than female in many parameters of skull relative size.Species and sex factors had interaction effect on SL,GBS,GBS/SW and BCL/SW.The observed differences of skull size and shape among the three species and between genders can be used to distinguish the species and gender.
文摘于2013年分别在广西北流大容山和江西井冈山用蝙蝠竖琴网分别采集到1只和9只蝙蝠标本,主要特征为：体型中型,鼻部前端呈短管状,背部毛基黄褐色,毛尖褐栗色,头骨和牙齿均粗壮。在室内使用Pettersson D500X超声波接收仪录制其静止和飞行状态下的回声定位信号,其超声波为FM型,飞行状态下主频率51.3~59.0 k Hz。根据形态特征鉴定该蝙蝠为毛翼管鼻蝠Harpiocephalus harpia,是广西和江西两省翼手目分布新纪录。对该种蝙蝠雌雄标本进行对比发现,6项外部形态和头骨指标上的差异有统计学意义,支持该种具有性二型现象。标本现保存于广州大学。
