Stand level impacts of Ips and Dendroctonus bark beetles in pine forest types of northern Arizona

Abstract

(Please note, this is an extended abstract only) Extensive tree mortality occurred in ponderosa pine forests and pinon-juniper woodlands of Arizona from 2001-2004. This mortality has been attributed to a combination of an extensive drought, overstocked stands of pine, and increased bark beetle populations. A complex of Ips and Dendroctonus species worked in concert to kill ponderosa pine. Pinon pine was attacked primarily by pinyon ips and to a lesser extent twig beetles. Initial tree mortality was associated with poor site quality (i.e., shallow soils, cinder hills, south-facing aspects, and lower elevations) and high tree densities.

Parent Publication

• Ecology, management, and restoration of pinon-juniper and ponderosa pine ecosystems: combined proceedings of the 2005 St. George, Utah and 2006 Albuquerque, New Mexico workshops

Citation

McMillin, Joel; Anhold, John; Negron, Jose. 2008. Stand level impacts of Ips and Dendroctonus bark beetles in pine forest types of northern Arizona. In: Gottfried, Gerald J.; Shaw, John D.; Ford, Paulette L., compilers. 2008. Ecology, management, and restoration of pinon-juniper and ponderosa pine ecosystems: combined proceedings of the 2005 St. George, Utah and 2006 Albuquerque, New Mexico workshops. Proceedings RMRS-P-51. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 207.