Does the variance of incubation temperatures constitute a significant selective force for the evolut

来源 :第六届全国野生动物生态与资源保护学术研讨会暨中国动物学会兽类学分会和鸟类学分会成立三十周年纪念会 | 被引量 : 0次 | 上传用户:christian1985
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It has been hypothesized that the variance of incubation temperature may have constituted a significant selective force for the evolution of reptilian viviparity.To test this idea,we incubated eggs of the slender forest skink (Scincella modesta) in five natural,nests and at two constant temperatures (18 ℃ and 21 ℃).Our manipulation of incubation temperature had significant effects on incubation length and several hatchling traits,but not on hatching success and other hatchling traits examined.Incubation length was not correlated with the thermal variance when holding the thermal mean constant.
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