[1].The Influence of Oxygen on the Development of Nanorana parkeri Tadpoles[J].Asian Herpetological Research,2018,9(1):50-55.[doi:10.16373/j.cnki.ahr.170086]
 Xingzhi HAN,Qiong ZHANG,*,et al.The Influence of Oxygen on the Development of Nanorana parkeri Tadpoles[J].Asian Herpetological Research(AHR),2018,9(1):50-55.[doi:10.16373/j.cnki.ahr.170086]
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The Influence of Oxygen on the Development of Nanorana parkeri Tadpoles()
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

卷:
9
期数:
2018年1期
页码:
50-55
栏目:
出版日期:
2018-03-25

文章信息/Info

Title:
The Influence of Oxygen on the Development of Nanorana parkeri Tadpoles
文章编号:
AHR-2016-0086
Author(s):
Xingzhi HAN1 Qiong ZHANG2*# Liqing FAN3 Le YANG4 and Zhensheng LIU1*#
1 College of Wildlife Resources, Northeast Forestry University, Harbin 150040, Heilongjiang, China
2 Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
3 Tibet Agriculture and Animal Husbandry College, Linzhi 860000, Tibet, China
4 Tibet Plateau Institute of Biology, Lhasa 850001, Tibet, China
Keywords:
amphibian frog local adaptation metamorphosis oxygen concentration telomere length
DOI:
10.16373/j.cnki.ahr.170086
Abstract:
Ectothermic animals are tolerant of variable oxygen availability, whether low-oxygen levels constrain the fitness of ectotherms remains unclear. Nanorana parkeri, an anuran endemic to the southern Tibetan plateau, is an excellent model with which to answer this question. In this study, we raised tadpoles of N. parkeri in oxygenated water (high-oxygen group) and deoxygenated unchlorinated tap water (low-oxygen group) and monitored their growth, mortality, and telomere length. The growth rate for body length and body weight was higher in the low-oxygen group than in the high-oxygen group. However, dissolved oxygen did not affect development time, mortality, and telomere length of the tadpoles. These results suggest that although the oxygen concentration influenced some phenotype traits of plateau tadpoles, but it didn’t influence the telomere length and survival rate, potential explanations are the local adaptation and N. parkeri tadpoles’ wide oxygen tolerance, and fluctuant toxic content that resulted in little oxidative stress on tadpoles. These results indicated that low oxygen was not a stress to N. parkeri tadpoles’ fitness and survival. This study is helpful in understanding the adaptation mechanisms of Tibetan plateau amphibians.

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更新日期/Last Update: 2018-03-27