ABSTRACT

Biogeography deals with the geography, ecology, and history of life-where it lives, how it lives there, and how it came to live there. It has three main branches-analytical biogeography, ecological biogeography, and historical biogeography. Historical biogeography considers the influence of continental drift, global climatic change, and other large-scale environmental factors on the long-term evolution of life. Ecological biogeography looks at the relations between life and the environmental complex. Analytical biogeography examines where organisms live today and how they spread. It may be considered as a division of ecological biogeography.