Temperature affects all aspects of ectotherm ecology, behavior, and physiology. Descriptions of thermal ecology are important for understanding ecology in changing thermal environments. Both laboratory and field estimates are important for understanding thermal ecology. Rabidosa rabida (Walckenaer 1837) (Araneae: Lycosidae) is a large wolf spider with some natural history, including laboratory estimates of thermal preference, tolerance, and performance, reported in the scientific literature. Laboratory tests suggest the active choice of temperature environment. To test published estimates of thermal ecology from the laboratory, we took body temperature measurements of mature spiders in the field nocturnally and diurnally using a FLIR camera in July 2019. We made comparisons between sexes and activity periods using field observations. We compared these measurements with the published values for thermal preferences and thermal maximum and with mean weather station data. Observed field temperatures differed significantly from published preference, but not from mean temperature from a local weather station. This suggests that this species is thermoconforming rather than actively thermoregulating. Reported thermal preference fell between the diurnal and nocturnal mean measurements closer to the diurnal than nocturnal temperatures. These field observations show how important it is to make field observations for physiology and thermal ecology. Maximum observed diurnal temperatures closely approached the published critical thermal maximum. We observed spiders performing behaviors such as hunting and feeding in conditions well above published thermal preference and near-critical high temperature. These observations suggest that R. rabida is thermoconforming in this limited period but does not rule out that they might thermoregulate in certain situations.

中文翻译：

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狼蛛体温的实地观察，Rabidosa rabida（Araneae：Lycosidae），与报告的实验室温度偏好不同，暗示了热顺应行为

温度影响变温动物的生态、行为和生理的各个方面。热生态学的描述对于理解不断变化的热环境中的生态学很重要。实验室和现场估计对于理解热生态学都很重要。Rabidosa rabida (Walckenaer 1837)（Araneae：Lycosidae）是一种大型狼蛛，具有一定的自然历史，包括实验室对热偏好、耐受性和性能的估计，在科学文献中有所报道。实验室测试建议主动选择温度环境。为了测试实验室公布的热生态学估计，我们于 2019 年 7 月使用 FLIR 相机在野外夜间和白天对成熟蜘蛛的体温进行了测量。我们使用野外观察对性别和活动期进行了比较。我们将这些测量结果与已公布的热偏好和热最大值以及平均气象站数据进行了比较。观测到的野外温度与公布的偏好显着不同，但与当地气象站的平均温度没有显着差异。这表明该物种是热适应的，而不是主动调节温度的。报告的热偏好介于昼夜和夜间平均测量值之间，比夜间温度更接近昼夜温度。这些实地观察表明，对生理学和热生态学进行实地观察是多么重要。观测到的最高昼夜温度非常接近公布的临界热最大值。我们观察到蜘蛛在远高于公布的热偏好和接近临界高温的条件下执行诸如狩猎和进食等行为。这些观察结果表明，R. rabida 在这段有限的时间内是耐热的，但不排除它们在某些情况下可能会进行体温调节。