We studied the thermophilic response to feeding of a typical desert adapted anuran from the Monte Desert. Our aim was to evaluate thermal changes in the selected body temperature of adult frogs of Pleurodema nebulosum, and measure the intestinal passage time, and food digestion. Our results show that after feeding, they selected higher micro-environmental temperatures ~ + 2 °C than frogs that remained starved. Pleurodema nebulosum would present a postprandial thermophilic response. The time of retention of food in the digestive tract was thermo-dependent, being lower in those individuals who were incubated at high temperatures (25 °C) compared to those subjected to lower temperatures (20 °C). Although we did not detect effects of temperature on digestive efficiency, the mass of faecal material indicates an increase at temperatures closer to the selected ones, suggesting that the defecation rate is influenced by temperature. Laiuoperinae frogs are characterized by explosive breeding behavior and fast growing rate. The digestive efficiency is essential for acquiring energy necessary for growth, reproduction and refuge-seeking, among others. In this framework, the differential selection of temperatures between moments of fasting and feeding allows the frogs to maintain a high digestive efficiency, maximizing the absorption of nutrients.

中文翻译：

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来自阿根廷蒙特沙漠的 Pleurodema nebulosum (Anura: Leptodactylidae) 摄食后的嗜热反应。

我们研究了来自蒙特沙漠的典型沙漠适应无尾目动物的嗜热反应。我们的目的是评估选定的 Pleurodema nebulosum 成年青蛙体温的热变化，并测量肠道通过时间和食物消化。我们的结果表明，在喂食后，他们选择了比仍然饥饿的青蛙更高的微环境温度 ~ + 2 °C。Pleurodema nebulosum 会呈现餐后嗜热反应。食物在消化道中的滞留时间与温度有关，在高温 (25 °C) 下孵化的个体与在较低温度 (20 °C) 下孵化的个体相比，其滞留时间较短。虽然我们没有检测到温度对消化效率的影响，粪便物质的质量表明在接近所选温度时会增加，这表明排便率受温度影响。Laiuoperinae青蛙的特点是繁殖行为爆炸性和生长速度快。消化效率对于获取生长、繁殖和寻求庇护等所需的能量至关重要。在这个框架中，禁食和进食之间温度的差异选择使青蛙能够保持高消化效率，最大限度地吸收营养。繁殖和寻求庇护等。在这个框架中，禁食和进食之间温度的差异选择使青蛙能够保持高消化效率，最大限度地吸收营养。繁殖和寻求庇护等。在这个框架中，禁食和进食之间温度的不同选择使青蛙能够保持高消化效率，最大限度地吸收营养。