Climate change is impacting species globally, with many populations declining at an accelerated rate toward extinction. Ectothermic species are particularly vulnerable given their reproductive success is linked to environmental temperatures. Studies of the effect of temperature on reproductive success in oviparous squamates have focused mostly on nest temperatures, after eggs are deposited. However, in some species gravid females are known to thermoregulate differently than other adults to increase reproductive success. It is essential to understand what influences the thermal biology of breeding adults in a population to implement targeted conservation strategies. The Florida scrub lizard Sceloporus woodi is an endemic species listed as near‐threatened due to decreasing populations. This study is the first to document the thermal biology of these breeding adults in relation to size, sex, and reproductive status. A t test was used to determine whether sexual dimorphism was present in the sampled S. woodi. Full linear mixed‐effects models were used to test the influence of size, sex, and reproductive status on the thermal biology of S. woodi. Despite female‐biased sexual size dimorphism, there were no sex‐based differences in body temperature in the studied population. Interestingly, reproductive status influenced thermal biology of females during the breeding season, with gravid females maintaining lower body temperatures compared to nongravid females. However, gravid females did not regulate their body temperatures more precisely compared to nongravid females. These results indicate the population viability of this endemic species is potentially linked to the different thermoregulatory requirements of gravid females as compared to other adults. Lower body temperatures of gravid females, exacerbated by their lack of thermal precision, have disconcerting conservation implications in the face of climate warming. Future studies focusing on gravid females are warranted to attain effective biodiversity conservation strategies mitigating the impacts of climate warming.

中文翻译：

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大小，性别和生殖状况对地方性佛罗里达灌木蜥蜴热生物学的影响

气候变化正在影响全球物种，许多人口以灭绝的速度加速下降。放热物种特别容易受到伤害，因为它们的繁殖成功与环境温度有关。温度对卵生卵繁殖成功影响的研究主要集中在产卵后的巢温。但是，在某些物种中，已知雌性雌性与其他成年雌性的体温调节不同，以增加繁殖成功率。必须了解影响种群中成年成年动物热生物学的因素，以实施有针对性的保护策略。佛罗里达磨砂蜥蜴Sceloporus woodi是一种由于种群减少而濒临灭绝的地方性物种。这项研究是第一个记录了这些成年成年牛的体型，性别和生殖状况的热生物学信息。使用t检验来确定采样的木。中是否存在性二态性。使用全线性混合效应模型测试大小，性别和生殖状况对伍德氏链球菌热生物学的影响。尽管女性偏爱性别大小二态性，但在研究人群中体温没有基于性别的差异。有趣的是，繁殖状态在繁殖季节影响了雌性的热生物学，与非重性雌性相比，妊娠雌性的体温保持较低。然而，与非重力雌性相比，妊娠雌性的体温调节并不精确。这些结果表明，与其他成年相比，该特有物种的种群生存能力可能与妊娠雌性的不同体温调节需求有关。由于缺乏热精确性，妊娠雌性的较低体温加剧了面对气候变暖的保护意义。