Question

Why do tundra and boreal forests exist at much lower latitudes than would otherwise occur due to elevational gradients

Answer 1

Tundra and Boreal forest, both are the world's largest forest and both have their own qualities. Tundra forest is located near the Equator and due to its location, the temperature of this forest gets sometimes high and sometimes low. Due to the location, the region is more elevated and also full of gradient.

the Boreal forest is also located near the Equator, but due to the change in the degree and temperature of this location, the forest gets always high temperature and the forest consists of snowy trees. Due to the high temperature of this forest, the fast changes of elevational gradients takes place.

that is why, due to the location of tundra and boreal forest, which is near to the equator and which is more impactful it exists at much lower latitudes and it has also less impact of elevational gradients.