Credit: Monte Neate-Clegg
The mountain forests of Tanzania are more than 9,300 miles away from Salt Lake City, Utah. But, as in eastern Africa, the wild places of Utah depend on a diversity of birds to spread seeds, eat pests and clean up carrion. Birds keep ecosystems healthy. So if birds in Tanzania are in trouble in a warming climate, as found in a recent study by University of Utah researchers, people in Utah as well as in the African tropics should pay attention.
In a new study published in
Global Change Biology, doctoral student Monte Neate-Clegg and colleagues tracked the demographics of 21 bird species over 30 years of observations from a mountain forest in Tanzania. For at least six of the species, their population declined over 30 years could be most attributable to rising temperatures--an effect of a warming world. Smaller birds, as well as those that live at the lower part of their elevation range, were at higher risk for slowed population growth.