Mate choice in giant panda (Ailuropoda melanoleuca).

Giant pandas are difficult to breed in captivity due to low oestrus and mating rate, high cub mortality and diseases. Thus, improving the mating success of giant pandas in captivity is an important conservation issue. After observations on eleven female and three male giant pandas from Beijing Zoo, Lanzhou Zoo, Chengdu Zoo and Giant Panda Breeding Center during their mating season in 2000 ∼ 2001, we found that mate choice plays an important role in mating success. Both male and female pandas actively chose their mates. Successful copulation only occurred in those males and females that both showed high frequencies of courting behaviour towards the opposite sex. Of those cases that only a male or female showed one-sided high or low frequency of courting behaviour in the keeper-arranged panda pairs in random order, no copulation was observed. Only three out of twenty-four paired pandas successfully copulated. All three impregnated female pandas in this study bore cubs. This indicated that mating choice was one of the important factors resulting in unsuccessful copulation and failure to reproduce. We recommend that attention be paid to the mate choice in giant panda when breeding pandas in pens are paired for reproduction in the future.