The first couple of weeks were involved with global patterns of land and water environments.
Physiological ecology is a major subfield in ecology.
That's considered the macroclimate . Most organisms don't experience the macroclimate. Aspect, vegetation, color and texture of ground, etc. modify the macroclimate to create a heterogeneous collection of microclimates. The snakes stay in the shade or underground during the day. In snowy climates, small rodents live out the winter in tunnels under the snow, where the temp may be near freezing for most of the winter, even though it can be tens of degrees below freezing above ground.