雌性凹耳蛙生育力与体型参数间相关性及其配对模式  

Correlation Between Fertility and Body Characteristic Parameters of Female Frogs(Odorrana tormota) and Their Mating Patterns

作　　者：袁成 王生 刘姝文 金莹 张方[1] YUAN Cheng;WANG Sheng;LIU Shu-Wen;JIN Ying;ZHANG Fang(College of Life Sciences,Anhui Normal University,Wuhu 241000,China)

机构地区：[1]安徽师范大学生命科学学院,芜湖241000

出　　处：《动物学杂志》2019年第1期30-36,共7页Chinese Journal of Zoology

基　　金：国家自然科学基金项目(No.31640073;31872230);安徽师范大学研究生科研创新与实践项目(No.2018kycx054)

摘　　要：为了探究雌性凹耳蛙(Odorrana tormota)生育力与体型参数之间是否存在相关性,测量了黄山浮溪地区23只排卵后雌蛙的体重、体长、头长、头宽、前臂宽、前肢及指长、前肢长、后肢全长、胫长等9个体型参数,并计数每只雌蛙的窝卵数。相关性分析显示,雌蛙的窝卵数和9个体型参数值均呈正相关性(P <0.05),体长和其他8个体型参数值均呈现正相关性(P <0.05),以体长为控制变量,偏相关分析显示,窝卵数和体重呈正相关性(P <0.05),故具有较长的体长、较重的体重特征的雌蛙,可以携带更多的卵,具有更强的生育能力。不同雌蛙个体间的窝卵数差异较大,平均窝卵数为(646.5±37.6)枚(590～706枚)。大个体雌蛙具有更强的生育力、更大的繁殖输出,可能是导致凹耳蛙两性间异形程度较大(雌大雄小)的重要驱动力。为了探究抱对雌、雄凹耳蛙之间的配对模式,测量了21对抱对雌、雄蛙的上述9个体型参数,分析显示,抱对雌、雄间9个体型参数值均不存在相关性(P> 0.05),未发现凹耳蛙在性选择的过程中采用选型配对模式,雌性凹耳蛙可能倾向雄蛙非体型的品质特征,比如鸣叫声等。We measured totally 9 types of body characteristic parameters of 23 female frogs(Odorrana tormota)including snout-vent length(SVL),head length(HL),head width(HW),width of lower arm(WLA),length of lower arm and hand(LAHL),forelimb length(FLL),hindlimb length(HLL),tibia length(TL),body mass(BM)in Huangshan Fuxi area after they ovulating to explore whether there is a correlation between fertility and the body characteristic parameters.We found out that the 9 types of body characteristic parameters frogs had significant positive correlation with clutch size(P<0.05,Table 1).We also found out that SVL was also positively correlated with the rest 8 types of body characteristic parameters(P<0.05,Table 2).By using the SVL as the control variable,we conducted a partial correlation analysis and got a positively correlation of the clutch size with BM(P<0.05,Table 3).These results indicated those females who with longer SVL and heavier BM produced a larger clutch size and had a stronger fertility.The clutch size between female individuals was differences with average around 646.5±37.6(590﹣706).The larger individual females have stronger fertility and larger reproductive output,which may be played an important role for the high degree sexual dimorphism of the concave-eared torrent female frogs.In order to explore what kind of mating patterns do male and female frogs choose,we measured and compared the 9 body characteristic parameters mentioned above from 21 mating paires and found out that the body characteristic parameters did not affect the female frogs selecting their matings(P>0.05,Table 4).The fact means that the female frogs may prefer males with other quality characteristics,such as croaks.

关 键 词：凹耳蛙 体型参数 性选择 配对模式 

分 类 号：Q954.3[生物学—动物学]