Layered Figure 14.1

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An illustration depicts the energy exchange pathways. Solar radiation directly falls on the terrestrial organism and sunlit rock, wherein the temperature of the sunlit rock is 45 degrees Celsius and the temperature of the organism is 38 degrees Celsius. The transfer of infrared radiation is indicated between the rock and the organism, between the organism and the sky, and between the organism and the shaded rock at 35 degrees Celsius. The convection and evaporation of the organism into the atmosphere are indicated. The ground temperature is 45 degrees Celsius below where the conduction of heat to the organism is indicated. The radiant temperature of the sky is marked as 20 degrees Celsius and the scattered solar radiation is indicated.

Figure 14.1 Pathways of energy exchange. A terrestrial organism exchanges energy with its environment via several pathways. These are illustrated here in simplified form by a lizard resting on the floor of a desert arroyo. Arrowheads indicate the direction of energy flow. Small adjustments of posture or position can change the magnitude and even the direction of energy exchange in the various pathways, giving the lizard considerable control over its body temperature. IR = infrared radiation. (After F. H. Pough et al. 2016. Herpetology, 4th ed. Oxford University Press/Sinauer: Sunderland, MA.)

An illustration depicts the energy exchange pathways. Solar radiation directly falls on the terrestrial organism and sunlit rock, wherein the temperature of the sunlit rock is 45 degrees Celsius and the temperature of the organism is 38 degrees Celsius. The transfer of infrared radiation is indicated between the rock and the organism, between the organism and the sky, and between the organism and the shaded rock at 35 degrees Celsius. The convection and evaporation of the organism into the atmosphere are indicated. The ground temperature is 45 degrees Celsius below where the conduction of heat to the organism is indicated. The radiant temperature of the sky is marked as 20 degrees Celsius and the scattered solar radiation is indicated.

Figure 14.1 Pathways of energy exchange. A terrestrial organism exchanges energy with its environment via several pathways. These are illustrated here in simplified form by a lizard resting on the floor of a desert arroyo. Arrowheads indicate the direction of energy flow. Small adjustments of posture or position can change the magnitude and even the direction of energy exchange in the various pathways, giving the lizard considerable control over its body temperature. IR = infrared radiation. (After F. H. Pough et al. 2016. Herpetology, 4th ed. Oxford University Press/Sinauer: Sunderland, MA.)

An illustration depicts the energy exchange pathways. Solar radiation directly falls on the terrestrial organism and sunlit rock, wherein the temperature of the sunlit rock is 45 degrees Celsius and the temperature of the organism is 38 degrees Celsius. The transfer of infrared radiation is indicated between the rock and the organism, between the organism and the sky, and between the organism and the shaded rock at 35 degrees Celsius. The convection and evaporation of the organism into the atmosphere are indicated. The ground temperature is 45 degrees Celsius below where the conduction of heat to the organism is indicated. The radiant temperature of the sky is marked as 20 degrees Celsius and the scattered solar radiation is indicated.

Figure 14.1 Pathways of energy exchange. A terrestrial organism exchanges energy with its environment via several pathways. These are illustrated here in simplified form by a lizard resting on the floor of a desert arroyo. Arrowheads indicate the direction of energy flow. Small adjustments of posture or position can change the magnitude and even the direction of energy exchange in the various pathways, giving the lizard considerable control over its body temperature. IR = infrared radiation. (After F. H. Pough et al. 2016. Herpetology, 4th ed. Oxford University Press/Sinauer: Sunderland, MA.)

An illustration depicts the energy exchange pathways. Solar radiation directly falls on the terrestrial organism and sunlit rock, wherein the temperature of the sunlit rock is 45 degrees Celsius and the temperature of the organism is 38 degrees Celsius. The transfer of infrared radiation is indicated between the rock and the organism, between the organism and the sky, and between the organism and the shaded rock at 35 degrees Celsius. The convection and evaporation of the organism into the atmosphere are indicated. The ground temperature is 45 degrees Celsius below where the conduction of heat to the organism is indicated. The radiant temperature of the sky is marked as 20 degrees Celsius and the scattered solar radiation is indicated.

Figure 14.1 Pathways of energy exchange. A terrestrial organism exchanges energy with its environment via several pathways. These are illustrated here in simplified form by a lizard resting on the floor of a desert arroyo. Arrowheads indicate the direction of energy flow. Small adjustments of posture or position can change the magnitude and even the direction of energy exchange in the various pathways, giving the lizard considerable control over its body temperature. IR = infrared radiation. (After F. H. Pough et al. 2016. Herpetology, 4th ed. Oxford University Press/Sinauer: Sunderland, MA.)

An illustration depicts the energy exchange pathways. Solar radiation directly falls on the terrestrial organism and sunlit rock, wherein the temperature of the sunlit rock is 45 degrees Celsius and the temperature of the organism is 38 degrees Celsius. The transfer of infrared radiation is indicated between the rock and the organism, between the organism and the sky, and between the organism and the shaded rock at 35 degrees Celsius. The convection and evaporation of the organism into the atmosphere are indicated. The ground temperature is 45 degrees Celsius below where the conduction of heat to the organism is indicated. The radiant temperature of the sky is marked as 20 degrees Celsius and the scattered solar radiation is indicated.

Figure 14.1 Pathways of energy exchange. A terrestrial organism exchanges energy with its environment via several pathways. These are illustrated here in simplified form by a lizard resting on the floor of a desert arroyo. Arrowheads indicate the direction of energy flow. Small adjustments of posture or position can change the magnitude and even the direction of energy exchange in the various pathways, giving the lizard considerable control over its body temperature. IR = infrared radiation. (After F. H. Pough et al. 2016. Herpetology, 4th ed. Oxford University Press/Sinauer: Sunderland, MA.)

An illustration depicts the energy exchange pathways. Solar radiation directly falls on the terrestrial organism and sunlit rock, wherein the temperature of the sunlit rock is 45 degrees Celsius and the temperature of the organism is 38 degrees Celsius. The transfer of infrared radiation is indicated between the rock and the organism, between the organism and the sky, and between the organism and the shaded rock at 35 degrees Celsius. The convection and evaporation of the organism into the atmosphere are indicated. The ground temperature is 45 degrees Celsius below where the conduction of heat to the organism is indicated. The radiant temperature of the sky is marked as 20 degrees Celsius and the scattered solar radiation is indicated.

Figure 14.1 Pathways of energy exchange. A terrestrial organism exchanges energy with its environment via several pathways. These are illustrated here in simplified form by a lizard resting on the floor of a desert arroyo. Arrowheads indicate the direction of energy flow. Small adjustments of posture or position can change the magnitude and even the direction of energy exchange in the various pathways, giving the lizard considerable control over its body temperature. IR = infrared radiation. (After F. H. Pough et al. 2016. Herpetology, 4th ed. Oxford University Press/Sinauer: Sunderland, MA.)

An illustration depicts the energy exchange pathways. Solar radiation directly falls on the terrestrial organism and sunlit rock, wherein the temperature of the sunlit rock is 45 degrees Celsius and the temperature of the organism is 38 degrees Celsius. The transfer of infrared radiation is indicated between the rock and the organism, between the organism and the sky, and between the organism and the shaded rock at 35 degrees Celsius. The convection and evaporation of the organism into the atmosphere are indicated. The ground temperature is 45 degrees Celsius below where the conduction of heat to the organism is indicated. The radiant temperature of the sky is marked as 20 degrees Celsius and the scattered solar radiation is indicated.

Figure 14.1 Pathways of energy exchange. A terrestrial organism exchanges energy with its environment via several pathways. These are illustrated here in simplified form by a lizard resting on the floor of a desert arroyo. Arrowheads indicate the direction of energy flow. Small adjustments of posture or position can change the magnitude and even the direction of energy exchange in the various pathways, giving the lizard considerable control over its body temperature. IR = infrared radiation. (After F. H. Pough et al. 2016. Herpetology, 4th ed. Oxford University Press/Sinauer: Sunderland, MA.)

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