Figure 1. A pair of Japanese quail. If the birds have not been subjected to genetic. selection for bodyweight, the adult male quail will. weigh about 100â140 g, while the females are. slightly heavier, weighing from 120â160 g.
The temperature of a desert is also a defining and unique characteristic. Most deserts are warmer during the day than they are at night, and the difference in temperature is quite drastic. The average daytime temperature is 100Â°F, while at night the average temperature is 25Â°F. This large temperature difference is due to low amount of moisture in the desert air.
Hot and Dry Deserts. Hot and dry deserts are, well, hot and dry. Temperatures in the hot and dry desert vary between 20Â° C and 49Â° C (68Â° F and 120Â° F) depending upon time of day and other conditions. The soils in these deserts are rocky and/or sandy and may blow in the wind. Because they are hot and dry, very few plants can live there.