CAJ | 학술논문

作者用蜡皮蜥(Leiolepis reevesii)为模型动物,检验产卵于温暖且热稳定巢内的蜥蜴应有相对较高但较窄的孵化温度的假设.卵在三个恒定温度(27、30和33℃)、一个波动温度处理下孵化.温度的平均值而非方差影响孵化期,27、30和33℃的平均孵化期分别为101.1、69.6和55.3 d.幼体性别不受孵化温度影响.不同处理孵出的幼体仅有稍许形态差异,但运动表现差异显著.27℃孵出幼体在跑道上的表现比其它处理孵出幼体差.卵能在27℃和33℃下孵化,但这两个孵化温度并不适宜.蜡皮蜥适宜的孵化温度范围可能处于最频繁的巢温变化范围(28℃-32℃)内.与其它在低温生境或温暖生境但产卵于浅巢的有鳞类爬行动物相比较,蜡皮蜥有相对较高但较窄适宜的卵孵化温度.因此,作者的数据支持上述假设[动物学报 53(3):437-445,2007].
작자용사피석(Leiolepis reevesii)위모형동물,검험산란우온난차열은정소내적석척응유상대교고단교착적부화온도적가설.란재삼개항정온도(27、30화33℃)、일개파동온도처리하부화.온도적평균치이비방차영향부화기,27、30화33℃적평균부화기분별위101.1、69.6화55.3 d.유체성별불수부화온도영향.불동처리부출적유체부유초허형태차이,단운동표현차이현저.27℃부출유체재포도상적표현비기타처리부출유체차.란능재27℃화33℃하부화,단저량개부화온도병불괄의.사피석괄의적부화온도범위가능처우최빈번적소온변화범위(28℃-32℃)내.여기타재저온생경혹온난생경단산란우천소적유린류파행동물상비교,사피석유상대교고단교착괄의적란부화온도.인차,작자적수거지지상술가설[동물학보 53(3):437-445,2007].
We used the Reevese's butterfly lizard Leiolepis reevesii as a model animal to test the hypothesis that incubation temperatures should be relatively high but narrow in lizards depositing eggs in warm and thermally stable nests. Eggs were incubated under three constant (27, 30 and 33℃) and one fluctuating temperature regimes. Hatchability was highest at 30℃ and lowest at 27℃. The mean rather than the variance of temperatures affected incubation length, and the mean incubation length was 101.1 days at 27℃, 69.6 days at 30℃ and 55.3 days at 33℃. Incubation temperature did not affect the sexual phenotype of hatchlings. Hatchlings from different treatments showed little variation in morphological phenotypes, but differed significantly in locomotor phenotypes. Hatchlings incubated at 27℃ performed much more poorly in the racetrack than did hatchlings from the other three treatments, and the variance of incubation temperatures negatively affected sprint speed of hatchlings. The incubation temperatures of 27℃ and 33℃ supported egg incubation, but these two temperatures were not ideal. The range of temperatures suitable for incubation of L.reevesii eggs presumably lies between the range of nest temperatures varying most frequently from 28℃ to 32℃. Compared with results reported for other squamate reptiles either from cool habitats or from warm habitats but depositing eggs in shallow nests, temperatures suitable for egg incubation are relatively high but narrow in L.reevesii. Thus, our data validate the above hypothesis[Acta Zoologica Sinica 53(3):437-445,2007].