Coniferous forests, otherwise known as taiga or boreal forests, have much lower biodiversity than Tropical Rain Forests. The explanation for this lies in their harsh climate and poor soils lacking nutrients. In comparison, tropical rainforests have a constant and pleasant climate and annual rainfall, creating perfect conditions to support the greatest biodiversity found anywhere on Earth. These boreal forests are dominated by a small number of tree species, like pines, firs, and spruces. In comparison, tropical rainforests are teeming with life and have a staggering array of species, making them have high biodiversity.