Natural or human - incuded factors that directly or indirectly cause a change in biodiversity are referred to as drivers.
Direct drivers that explicitly influence ecosytem processes.
Include land use change, climate change, invasive species, overexpletation, and pollution.
Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Broadly speaking, the diversity of an ecosystem is dependent on the physical characteristics of the environment, the diversity of species present, and the interactions that the species have with each other and with the environment.
Species diversity is caused by evolution. A region becomes diverse with the evolution of different species in an area.