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噪音对圈养中华小熊猫幼体存活的影响

Effects of noise on survival of cubs in captive Chinese red pandas (Ailurus styani)

  • 摘要: 为了探明噪音对圈养中华小熊猫(Ailurus styani)幼体存活的影响,2020年5~11月在中国大熊猫保护研究中心卧龙核桃坪基地使用噪音仪测量记录5只小熊猫母幼的环境噪音,结合温湿度、弃仔天数等相关数据综合分析。结果发现:小熊猫母兽弃仔天数与产后前5日的平均噪音存在负相关(P<0.01);65.02±1.12 dB的平均噪音(该期最高噪音平均为97.38±1.88 dB)会造成母兽弃仔影响幼仔的生存;≥70 dB噪音占据时间超过1.33 %时,会影响初产母兽,弃仔风险增加。≤54.64±0.93 dB的平均噪音(平均最高噪音≤ 92.10±9.80 dB)不影响母幼。小熊猫母兽弃仔天数与月平均噪音、平均温度、平均湿度无相关性(P>0.05)。研究结果探明了影响中华小熊猫母兽弃仔的噪音范围,平均噪音≤54.64±0.93 dB可避免弃仔,对提高它们的存活率具有重要的意义。

     

    Abstract: In order to investigate the effects of noise on the survival of captive Chinese red pandas (Ailurus styani) cubs, the data on noise were collected continuously in five female animals and their cubs via noise meter at Hetaoping base, Wolong, China Conservation and Research Center for the Giant Panda from May to November 2020. The number of days that female abandon its cub and temperature and humidity were combined to make a comparative analysis to explore effect.The results indicated that: There was a significant negative correlation between the number of days that female abandon its cub and the average noise of first 5 days after birth (P<0.01). Within Five days postpartum, the average noise were 65.02±1.12 dB (the maximum noise were 97.38±1.88 on average) will causing newborn mother to abandon its cub and affected the survival of the young. Within 5 days postpartum, the time of ≥70 dB noise is more than 1.33% that may affected newborn mother and increase the risk of abandoning the young. Correspondingly, the effect of average noise ≤54.64±0.93 dB (the maximum noise were ≤92.10±9.80 dB on average) had rarely effect on mother and cubs. The number of days that female abandon its cub was not significant correlation to average monthly noise and average temperature and humidity (P>0.05). These results reveal noise range that Chinese red panda female abandon its cub. Within 5 days after delivery, the average noise is less than 54.64±0.93 dB can avoid abandonment, and can be used to further improve survival rate of cub.

     

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