The predominant biome in Dublin is a temperate deciduous forest. The forests are made up of a variety of tree species, including oak, ash, elm, beech, and birch. The understory is made up of shrubs, ferns, and wildflowers.
The temperate deciduous forest is home to a variety of animal species, including deer, rabbits, squirrels, foxes, and birds. The forests also provide a habitat for a variety of plant species, including wildflowers, ferns, and mosses.