The definition of a biome: a large area categorized by its vegetation, animals, and temperature throughout the year. The definition of an ecosystem: a clearly defined area in which living organisms and their surroundings create a stable system. There are many biomes in Yosemite but the one that will be focused on is the temperate deciduous forest. A key component to the temperature forest biome is the temperature change between winter and summer months. As shown in the map below (on the right) Yosemite is found in the temperature deciduous forest area.
Yosemite National Park is shown as the upper park on the map on the left. The map on the right shows an up-close view of the park itself.
As shown in the map below (on the right) Yosemite is found in the temperature deciduous forest area. The map below (on the left) shows all the different biomes throughout the entire world. Temperate forest biomes are found on the west coast of the United States, eastern United States, most of Europe, southern South America, southern Australia, and eastern Asia.