The Role of Substrate Moisture and Dew in the Water Economy of Leopard Frogs, Rana pipiens
The Role of Substrate Moisture and Dew in the Water Economy of Leopard Frogs, Rana pipiens
复制标题
底质湿度和露水在豹纹蛙水经济中的作用
作者：
J. Dole
在夏天，成体林蛙通常居住在离池塘相当远的地方，依靠土壤水分作为它们的主要水源。坐在潮湿的土壤上时，水分通过腹股沟的皮肤吸收。在受控的实验室条件下，当豹蛙在含水率为20%的沙子上脱水至水化重量的65%-75%时，平均可在48小时内完全恢复失去的水分；在含水率仅为10%的沙子上，仅有约50%的失水在48小时内被重新吸收。
In summer, adult Rana ipipens, which normally reside at considerable distances from ponds, depend upon soil moisture as their primary source of water. Water is absorbed through the skin of the groin while sitting on the damp soil. Under controlled laboratory conditions leopard frogs dehydrated to 65-75% of their hydrated weight, can, on the average, completely recover the lost water in 48 hr when on sand with a moisture content of 20%; on sand with only 10% water content, only about 50% of the lost water is reabsorbed in 48 hr.