Tree Mortality - Southern NM
Tree mortality in the southern portion of New Mexico increased substantially in 2011. During our annual surveys we observed ponderosa pine mortality on the Gila and Lincoln National Forests. Douglas-fir and white fir trees are also being affected in some areas. This photograph shows ponderosa pine mortality in the southern part of the Sacramento Mountains observed during our survey flights.
The mortality is occurring because of the drought conditions that occurred during 2010-2011 in southern New Mexico. Populations of several species of bark beetles have increased in response to the dry conditions. Other insects including wood borers and weevils have also contributed to tree mortality. The drought has weakened the trees’ normal way of resisting these insects.
More Information
- Frequently asked questions regarding the tree mortality in the Sacramento Mountains
- Press release about the mortality on the Sacramento Mountains (Dec. 20, 2011)
- General information on bark beetle biology
- Bark beetle information from our field guide