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首页> 外文期刊>Zoological Science >Life-history Variation with Respect to Experienced Thermal Environments in the Lizard, Eremias multiocellata (Lacertidae)
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Life-history Variation with Respect to Experienced Thermal Environments in the Lizard, Eremias multiocellata (Lacertidae)

机译：关于蜥蜴，多毛Er（蜥蜴科）中经历过的热环境的生活史变化

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摘要

We compared adult size, female reproductive traits, and offspring phenotypes between multiocellated racerunners (Eremias multiocellata) from two thermally different sites (populations) in Inner Mongolia (North China): the colder one in Wulatehouqi (WQ) and the warmer one in Dalateqi (DQ). Both adults and neonates were smaller in the colder site. Females from the two sites both produced a single litter of 2-5 young per season, and did not differ in allocation of energy to reproduction after accounting for differences in body size. Female neonates had more ventral scales than did males, and the WQ neonates had fewer ventral scales than did the DQ neonates. The WQ neonates were slower than the DQ neonates. When body length was normalized across populations, we found that (1) hindlimb length correlated positively with sprint speed in both WQ and DQ neonates, (2) forelimb length correlated positively with sprint speed only in the DQ neonates, and (3) tail length correlated positively with sprint speed only in the WQ neonates. Hindlimb length played a more important role in locomotion than did tail length or forelimb length. Though differing in size and morphology, neonates from the two sites did not differ in early growth and survival under identical laboratory conditions. Our data are consistent with many studies that have shown countergradient variation in physiological traits (growth rate and reproductive output) and cogradient variation in morphological traits.
机译：我们比较了来自内蒙古（华北）两个热不同地点（种群）的多细胞竞跑者（Eremias multiocellata）的成年大小，雌性生殖特征和后代表型：乌拉特后旗（WQ）较冷的一个和大拉特旗（WQ）较冷的一个DQ）。成年人和新生儿在较冷的地方都较小。来自这两个地点的雌性每个季节都产下2-5个幼仔，而考虑到体型的差异后，它们在繁殖上的能量分配没有差异。女性新生儿的腹侧鳞片比男性多，而WQ新生儿的腹侧鳞片比DQ新生儿少。 WQ新生儿比DQ新生儿慢。当跨人群的体长标准化后，我们发现（1）后肢长度在WQ和DQ新生儿中均与冲刺速度成正相关，（2）前肢长度与仅在DQ新生儿中的冲刺速度成正相关，并且（3）尾巴长度仅在WQ新生儿中与冲刺速度呈正相关。后肢长度在运动中比尾巴长度或前肢长度更重要。尽管大小和形态不同，但两个地点的新生儿在相同实验室条件下的早期生长和存活率没有差异。我们的数据与许多研究一致，这些研究表明生理性状（生长速率和生殖输出）的梯度变化和形态性状的梯度变化。

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