野外猪獾(Arctonyx collaris)交配行为观察

Observation of Mating Behavior of Wild Hog-Badger( Arctonyx Collaris)

2017年3月13日-5月13日,获得猪獾在野外交配的红外相机视频463个片段,总有效时长8 057 s。交配前雄兽对雌兽有明显看护行为,时间长达30. 55 h。4月18日01:55-08:49,雌兽在洞巢外接受了雄兽1次爬跨、3次交配,每次交配持续时间分别为:731 s、1 690 s、1 494 s,交配维持时间明显大于多数已知哺乳动物的交配时间。观察初步结果显示:1)猪獾的交配时机由雌兽掌握,雌兽对雄兽有明确的邀配(sexual solici-tations)行为; 2)在一个发情周期内,雌兽可接受同一雄性个体的多次交配; 3)雄兽交配过程中有快速、持久抽插的动作。这些交配策略,支持生殖刺激(Stimulation of reproduction)假说和护卫交配权(Mate guarding)假说。

463 videos(totally 8 057 s)about wild mating behavior of Hog-badger(Arctonyx collaris)were recorded by infrared camera during 2017 March 13th to May 13th in Jiangxi Wuyishan.Male care for females for 30.55 h before mating.One mounting behavior,and three mating behaviors were observed outside the cave nest in April 18th from 01:55 to 08:49.The duration of mating behavior lasted for 731s,1 690 s and 1 494 s,respectively.Mating duration was significantly longer than that of most known mammals.Based on these observations,we found 1)the mating behavior was controlled by female,and there were obvious sexual solicitations from female;2)Females can receive multiple mating of the same male individual within one estrous cycle;3)Quickly and repeatedly pumping and inserting behavior was observed during mating.These mating strategies support the stimulation of reproduction hypothesis and mate guarding hypothesis.