[1].Higher Body Temperatures and Earlier Parturition in Response to Hypoxia Experienced by Pregnant Lizards[J].Asian Herpetological Research,2021,12(2):228-233.[doi:10.16373/j.cnki.ahr.200102]
 Zhongwen JIANG,Liang Ma*,Shiang Tao,et al.Higher Body Temperatures and Earlier Parturition in Response to Hypoxia Experienced by Pregnant Lizards[J].Asian Herpetological Research(AHR),2021,12(2):228-233.[doi:10.16373/j.cnki.ahr.200102]

Higher Body Temperatures and Earlier Parturition in Response to Hypoxia Experienced by Pregnant Lizards()

Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]



Higher Body Temperatures and Earlier Parturition in Response to Hypoxia Experienced by Pregnant Lizards
Zhongwen JIANG12 Liang Ma13* Shi’ang Tao4 Xingzhi Han5
1 Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 Princeton School of Public and International Affairs, Princeton University, Princeton, New Jersey 08544, USA
4 College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
5 College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, Heilongjiang, China
climate change hypoxia offspring pregnant female reproduction viviparous lizard
Many species are shifting towards higher altitudes in response to global warming, but how these upslope-shifting species will respond to hypoxic environments at high altitudes remains unclear. Hypoxia can be especially challenging for viviparous reproduction because of the limitation of oxygen supply to the female and her developing embryos. To investigate the effect of hypoxia on viviparous females and their offspring we acclimated pregnant females of a high-altitude dwelling viviparous lizard (Phrynocephalus vlangalii) to local oxygen and hypoxia conditions, respectively. We then recorded maternal body temperatures, postpartum body condition, as well as offspring morphology and locomotor performance. We found that pregnant females had higher body temperatures and advanced their parturition under hypoxic acclimation. However, maternal body condition, offspring morphology and locomotor performance were unaffected by the hypoxic conditions during gestation. Our study suggests that upslope-shifting viviparous lizards respond to hypoxic environments by plastically adjusting their body temperatures to reduce parturition time, without short-term costs to offspring traits.


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更新日期/Last Update: 2021-06-25