Download or read book Biological Evaluation of Mountain Pine Beetle Activity on the Green Ridge Analysis Area of Parks Ranger District Medicine Bow Routt National Forests 2003 written by Robert J. Cain and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle Activity on the Green Ridge Analysis Area Parks Ranger District Medicine Bow Routt National Forest 2003 written by Robert J. Cain and published by . This book was released on 2003 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Medicine Bow Routt National Forests N F Thunder Basin National Grassland N G Green Ridge Mountain Pine Beetle Analysis written by and published by . This book was released on 2003 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle Activity on the Rock Creek Analysis Area of Yampa Ranger District Medicine Bow Routt National Forests and Thunder Basin National Grassland 2005 written by Robert J. Cain and published by . This book was released on 2005 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Spruce Beetle and Mountain Pine Beetle Activity in the Sierra Madre Analysis Area on the Parks Ranger District Medicine Bow Routt National Forests and Thunder Basin National Grassland 2006 written by and published by . This book was released on 2006 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle Activity on the Black Trout Analysis Area of South Park Ranger District Pike San Isabel National Forests and Comanche and Cimarron National Grasslands 2005 written by and published by . This book was released on 2005 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Final Environmental Impact Statement written by United States. Forest Service and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Spruce Beetle and Mountain Pine Beetle Activity on the French Creek Analysis Area of Brush Creek Hayden Ranger District Medicine Bow Routt National Forests and Thunder Basin National Grassland 2005 written by Robert J. Cain and published by . This book was released on 2005 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle Activity on the Upper Fraser Analysis Area of Sulphur Ranger District Arapaho Roosevelt National Forest and Pawnee National Grassland 2005 written by and published by . This book was released on 2005 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle and Spruce Beetle Activity in the Larson II Analysis Area on the Hahns Peak Bears Ears Ranger District Medicine Bow Routt National Forests and Thunder Basin National Grassland 2006 written by and published by . This book was released on 2006 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle Activity on the Upper Fraser Analysis Area of Sulphur Ranger District Arapaho Roosevelt National Forests and Pawnee National Grassland 2005 written by and published by . This book was released on 2005 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain pine beetle (MPB) epidemic in Grand County, Colorado, started in 1997 in the Williams Fork and Troublesome watersheds. Over the past seven years, losses of lodgepole pine to mountain pine beetle increased in these areas until most of the trees had been killed. Beginning in 2000, MPB-killed trees began to be detected in the Upper Fraser watershed. By 2004 large areas of lodgepole pine had been infested and killed by this beetle. The Sulphur Ranger District, on the Arapaho-Roosevelt National Forests and Pawnee National Grassland, is considering a variety of silvicultural treatments on approximately 2,400 acres of forest land to manage MPB impacts and remove beetle-infested and killed trees in designated areas in the Upper Fraser Analysis Area.‍?Lakewood Service Center Forest Health Management (LSC-FHM) surveyed ten of the proposed management units in the Upper Fraser Analysis Area to determine the level of mountain pine beetle infestation in these areas. LSC-FHM utilized aerial survey data and conducted on the ground surveys using strip samples and systematic variable radius plots. Ground surveys recorded the number of trees infested with mountain pine beetle in 2004 and the number of MPB-killed trees in 2003. Stand exam data also were used to determine stand susceptibility ratings for the management units.‍?Summary results from the aerial survey data indicated a rapid increase in MPB related mortality across the Upper Fraser Analysis Area over the last two years. The estimated area affected by MPB-caused mortality increased from 98 acres in 2002, to 1,588 acres in 2003, and 2,934 acres in 2004. Survey results estimate that the number of trees killed increased from 99 in 2002, to 656 in 2003, and 8,985 in 2004.‍?Ground survey data for the ten management units indicated that the MPB epidemic in the Upper Fraser Analysis Area is rapidly expanding in all management units, with a rapidly increasing number of trees infested and killed by the beetle. The number of MPB-infested trees ranged from 3 to 68 trees per acre. The 2004:2003 ratio of the number of trees infested by MPB ranged from 1.4:1 to 10.8:1, with nine of ten management units exceeding 3:1. The 2004:2003 ratio averaged over all ten units was 4.9:1.‍?Average tree diameter, tree age, tree density, and elevation for the ten management units indicate that the associated stands are highly susceptible to MPB infestation. Given the abundance of MPB within the management units and concurrence of stand characteristics that favor MPB infestation, these units are all likely to sustain major losses to MPB over the course of this epidemic. Management actions to address the MPB infestation occurring in the Upper Fraser Analysis area are discussed.

Download or read book Biological Evaluation of Mountain Pine Beetle Activity in the Little Snake Analysis Area on the Hahns Peak Bears Ears Ranger District Medicine Bow Routt National Forests and Thunder Basin National Grassland 2006 written by and published by . This book was released on 2006 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Medicine Bow Routt National Forests N F Bark Beetle Analysis written by and published by . This book was released on 2002 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle Activity on the Black Trout Analysis Area of South Park Ranger District Pike San Isabel National Forest and Comanche and Cimarron National Grasslands 2005 written by and published by . This book was released on 2005 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ponderosa pine mortality due to mountain pine beetle (MPB) activity has been detected in air and ground surveys of the Black Trout Analysis Area on the South Park District of the Pike-San Isabel National Forests and Comanche and Cimarron National Grasslands. The South Park Ranger District has proposed mechanical and prescribed burn silvicultural treatments on approximately 12,500 acres of National Forest Lands to salvage trees killed, to reduce MPB infestations, to reduce disease impacts and to reduce the potential for crown or high intensity wildfires within designated areas of the Black Trout Analysis Area.‍?Lakewood Service Center-Forest Health Management (LSC-FHM) personnel used aerial survey information and ground surveys to determine stand conditions and the level of beetle infestation in the Black Trout Analysis Area. Ground surveys included strip samples and systematic variable radius (VR) plot samples. Strip samples indicate MPB population trends by comparing the number of trees infested in 2004 and the number of MPB-killed trees in 2003. VR plots record stand density and tree diameter which is used along with available stand exam data to determine stand susceptibility.‍?Results indicate an increasing population trend in 4 of 9 units surveyed and a decreasing trend in 5 of the units where MPB had already killed many trees. Although many stands have already suffered high levels of mortality, there remains a high risk of infestation to all susceptible stands in the proposed treatment areas. Average stand diameters, age, tree density and elevation indicate that stands in the proposed treatment areas are either moderately or highly susceptible to MPB outbreaks.‍?Management actions to address the MPB infestation in the Black Trout Analysis Area are discussed. Sanitation and salvage of beetle infested trees and reducing stand density in the uninfested portions of the proposed treatment areas may help reduce MPB impacts and reduce stand susceptibility to MPB attack.

Download or read book Evaluation of Mountain Pine Beetle Activity in the Steamboat Rock and Beaver Park Areas of the Spearfish Nemo Ranger District of the Black Hills National Forest written by Kurt K. Allen and published by . This book was released on 1998 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Mountain Pine Beetle Activity in Beaver Park on the Spearfish Nemo Ranger District of the Black Hills National Forest written by Kurt K. Allen and published by . This book was released on 2000 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Evaluation of Mountain Pine Beetle Activity in the Dillon Reservoir and Lower Blue Analysis Areas of the Dillon Ranger District White River National Forest 2006 written by and published by . This book was released on 2006 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: