[1].Effects of Thermal and Hydric Conditions on Egg Incubation and Hatchling Phenotypes in Two Phrynocephalus Lizards[J].Asian Herpetological Research,2012,3(3):184-191.[doi:10.3724/SP.J.1245.2012.00184]
 Xiaolong TANG,Feng YUE,Ming MA,et al.Effects of Thermal and Hydric Conditions on Egg Incubation and Hatchling Phenotypes in Two Phrynocephalus Lizards[J].Asian Herpetological Research(AHR),2012,3(3):184-191.[doi:10.3724/SP.J.1245.2012.00184]
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Effects of Thermal and Hydric Conditions on Egg Incubation and Hatchling Phenotypes in Two Phrynocephalus Lizards()
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

卷:
3
期数:
2012年3期
页码:
184-191
栏目:
Original Article
出版日期:
2012-09-25

文章信息/Info

Title:
Effects of Thermal and Hydric Conditions on Egg Incubation and Hatchling Phenotypes in Two Phrynocephalus Lizards
文章编号:
AHR-2012-0010
Author(s):
Xiaolong TANG Feng YUE Ming MA Ningbo WANG Jianzheng HE and Qiang CHEN*
Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, Gansu, China
Keywords:
egg incubation hatchling phenotypes post-hatching performance Phrynocephalus przewalskii Phrynocephalus versicolor
DOI:
10.3724/SP.J.1245.2012.00184
Abstract:
Flexible-shelled eggs of the lizards Phrynocephalus przewalskii and P. versicolor were incubated under different thermal and hydric conditions to elicit the effects of incubation environment on hatching success, embryonic development and duration as well as hatchling phenotypes. Embryogenesis of the two species was not sensitive to changes in the hydric environment except P. przewalskii incubated in 30°C group. Temperature significantly altered the duration of embryogenesis, with cooler temperatures leading to a longer incubation period. Hatching success was greater at 26 and 30°C than at 34°C. The hatchlings incubated at 26 and 30°C had longer snout-vent length, larger body mass, and better locomotor performance than those incubated at 34°C. Compared to P. przewalskii, P. versicolor had a shorter incubation period and yielded smaller hatchlings, which then had a higher survival rate in cooler and drier habitats. We conclude that an incubation temperature of 30°C would produce the best balance among developmental rate, hatching success, and post-hatching performance. We speculate that the upper temperature limit for incubation of P. versicolor eggs may be slightly higher than 34°C.

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更新日期/Last Update: 2016-03-15