Species up a mountain

After a short hiatus, we are back! Anand Krishnan continues with the next post in his series Specimen Tales ~ In continuation with the previous post’s theme of how species distribute themselves, we deal here with altitudinal separation of species. Many species tend to replace each other over a gradient of elevations, such as that of the Andes of South America. Habitat types change as altitude increases; forests decrease in height, average temperatures are lower, and overall species diversity decreases as fewer and fewer lowland species can make it all the way up a high mountain. In many cases among birds, the … Continue reading Species up a mountain