Question

what leads to regional diversity in plant and animal life​

Answer 1

Sweden has a great diversity of plants and animals, inhabiting a mosaic of different environments, from arable land, forests and mountains to wetlands, streams, rivers, lakes and seas. Many species and habitats show negative trends and are in danger of disappearing in the long term. One reason is that traditional methods of farming and forestry, which once benefited many species, are now rarely used. Heavy nutrient loads and commercial fisheries are adversely affecting several marine environments.