斯洛维尼亚池塘中大蟾蜍的交配模式(英文)  

Mating patterns of common toad Bufo bufo in a Slovenian pond

作　　者：Milan Vogrin Andreja MIKLI 

机构地区：[1]Zg. Hajdina 83c, SI-2288 Hajdina, Slovenia,Biotechnical Faculty,University of Ljubljana, Groblje 3, SI-1230 Domale, Slovenia

出　　处：《动物学报》2005年第3期513-515,共3页ACTA ZOOLOGICA SINICA

摘　　要：为了解大蟾蜍( Bufo bufo)的配对成功是否与身体大小有关,在蟾蜍产卵之前,我们在斯洛文尼亚捕捉和测量了2 224只成体样本。在这些捕获的个体中, 1 772只为雄性, 452只为雌性,其中355对处于抱对状态。雌性的体长(从吻端到泄殖腔的距离)一般比雄性稍长。无论雄性还是雌性,抱对者的体长均大于未抱对者。抱对的雄性和雌性的体长具有显著的正相关。我们所发现的大小匹配的交配模式,与从其它普通蟾蜍种群得到的结果一致[动物学报51 (3) : 513 -515 , 2005]。In “explosive breeder” systems (Wells, 1977) with a short breeding season lasting only for a few days, male “scramble competition” for females seems to prevail, with the result that larger males are more likely to mate than small males (Davies and Halliday, 1979; Howard, 1980; Berven, 1981). The common toad Bufo bufo is an explosive breeder for which it is already well known that larger males have a higher reproductive success (Davies and Halliday, 1977, 1979). In this paper we present field observations of the size of Bufo bufo at the time of reproduction. The main aim of this paper is to test the assumption that bigger males have better mating success than smaller ones using a large sample size.

关 键 词：交配模式 大蟾蜍 池塘 斯洛文尼亚 雄性 雌性 泄殖腔 体长 正相关 515 成体 动物 种群 

分 类 号：Q492[生物学—生理学]