Why are there so many ecosystems in the Andes?

The Andes Mountains host a diverse range of ecosystems due to their extreme elevation gradients, varied climates, and geographic isolation. The dramatic topography creates distinct microclimates, leading to unique habitats that can support a wide array of flora and fauna. Additionally, the Andes' position along the equator allows for rich biodiversity, as ecosystems transition from tropical rainforests to alpine tundra over relatively short distances. This combination of factors contributes to the incredible ecological variety found in the region.