Temperate bat species cope with environmental temperatures outside their thermoneutral zone through physiological responses, habitat selection, and social roosting. While there have been several studies examining these factors in bat species that form maternity colonies in tree cavities, underneath bark, or in manmade structures, such studies rarely focus on bats that roost solitarily in tree foliage. To better understand the thermal environment of a foliage‐roosting bat and how they respond to thermal stimuli, we used temperature‐sensitive radio‐telemetry and environmental dataloggers to study the eastern red bat (Lasiurus borealis) in southeast Ohio. We collected skin temperatures from eight male and nine reproductive female bats in combination with microclimate data from 25 bat roosts and 15 random trees. We found that elevation, minimum ambient temperature, and maximum ambient temperature best predicted bat skin temperatures, while sex had little effect. We also found that trees located at higher elevations had warmer canopy microclimates than those at lower elevations, but temperatures did not differ between roost and random trees. These results show that solitary, foliage‐roosting species use torpor extensively in response to cool temperatures during summer. These results have conservation implications, indicating that areas on the landscape with warmer conditions are important for reducing the cost of maintaining euthermic body temperatures. In southeastern Ohio, this includes upland forests, but our data suggest that temperatures at slope positions, and not the elevation itself, are the important habitat feature for eastern red bats.

中文翻译：

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栖息地的升高和环境温度最能预测东部红蝙蝠夏季异温的利用

温带蝙蝠物种通过生理反应，生境选择和社会栖息地来应对热中性区以外的环境温度。尽管有几项研究检查了在树洞，树皮下或人造结构中形成产妇集落的蝙蝠物种中的这些因素，但此类研究很少关注单独在树上栖息的蝙蝠。为了更好地了解生叶蝙蝠的热环境以及它们对热刺激的反应，我们使用了对温度敏感的无线电遥测仪和环境数据记录仪，对东部红蝙蝠（Lasiurusborealis）进行了研究。）在俄亥俄州东南部。我们收集了八只雄性蝙蝠和九只雌性生殖蝙蝠的皮肤温度，并结合了25只蝙蝠栖息地和15棵随机树的小气候数据。我们发现，海拔，最低环境温度和最高环境温度可以最好地预测蝙蝠的皮肤温度，而性别影响不大。我们还发现位于较高海拔的树木比较低海拔的树木具有较高的冠层微气候，但栖木和无规树木之间的温度没有差异。这些结果表明，在夏季凉爽的温度下，孤独，栖息于树上的树种大量使用火炬。这些结果具有保护意义，表明景观条件较暖的区域对于降低维持体温正常体温的成本很重要。在俄亥俄州东南部，