Biogeography is a branch of biology that focuses on the distribution of organisms and ecosystems across the Earth. It considers factors like:

* Geographical distribution: Where species live and how their ranges are shaped by climate, geology, and history.

* Species diversity: How many different species live in a particular biome and what factors contribute to this diversity.

* Ecosystem interactions: How different organisms interact with each other and their environment within a biome.

* Evolutionary history: How biomes have changed over time and how this has shaped the evolution of species.

So, while the term "biome" refers to a specific type of ecosystem, biogeography is the broader study of the patterns and processes that govern the distribution and diversity of life on Earth.