USDA Forest Service

Pacific Southwest Research Station

 
Pacific Southwest
Research Station

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Publications and Products

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

Authors: McMillin, Joel; Anhold, John; Negron, Jose

Date: 2008

Publication 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.

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.

Keywords: Pinon-juniper and juniper woodlands, ponderosa pine forests, ecology, management, restoration, southwestern United States

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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.
Last Modified: January 11, 2012