DOI: 10.1016/j.foreco.2015.09.010
Scopus记录号: 2-s2.0-84941686742
论文题名: Limber pine in the central and southern Rocky Mountains: Stand conditions and interactions with blister rust, mistletoe, and bark beetles
作者: Cleaver C.M. ; Jacobi W.R. ; Burns K.S. ; Means R.E.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 358 起始页码: 139
结束页码: 153
语种: 英语
英文关键词: Arceuthobium cyanocarpum
; Bark beetles
; Cronartium ribicola
; Pinus flexilis
; Stand condition assessment
; White pines
Scopus关键词: Balloons
; Biodiversity
; Climate change
; Damage detection
; Decision making
; Landforms
; Restoration
; Arceuthobium cyanocarpum
; Bark beetle
; Condition assessments
; Cronartium ribicola
; Pinus flexilis
; White pine
; Forestry
; bark
; beetle
; biodiversity
; climate change
; coniferous forest
; conservation management
; dieback
; fungus
; minimum viable population
; mortality
; pest outbreak
; rust disease
; stand structure
; Ecosystems
; Insects
; Mortality
; Mountains
; Pinus Flexilis
; Colorado
; Michigan
; Montana
; Rocky Mountains
; United States
; White Pine
; Wyoming
; Arceuthobium cyanocarpum
; Arceuthobium pusillum
; Cronartium ribicola
; Dendroctonus ponderosae
; Pinus flexilis
; Scolytinae
英文摘要: Combined effects of the recent mountain pine beetle (Dendroctonus ponderosae) outbreak and white pine blister rust (caused by Cronartium ribicola) (WPBR) are causing extensive crown dieback and mortality in limber pine (Pinus flexilis) in the central and southern Rocky Mountains. Additional stressors such as climate change and limber pine dwarf mistletoe (Aceuthobium cyanocarpum) may significantly alter stand structure and biodiversity of these ecosystems. The objectives of this study were to: (1) assess site, stand, and tree health conditions in limber pine stands of northern Colorado, Wyoming, and southeastern Montana, (2) quantify impacts of WPBR, bark beetles, and dwarf mistletoe, and (3) determine biotic and abiotic factors that influence the occurrence and incidence of these damage agents.We assessed 22,700 limber pines on 508 plots in limber pine-dominated stands in twenty-five study areas in northern Colorado, Wyoming, and southeastern Montana. Average live limber pine density was 311stemsha-1. Overall, 50% of limber pines were classified as healthy with over 50% of limber pine mortality attributed to bark beetle attacks. White pine blister rust damage was evident on over 60% of declining or dying limber pines. Blister rust was the primary damage agent, occurring on 73% of the plots and 26% of the trees. Bark beetle-caused mortality was found on 75% of plots and 18% of trees. Limber pine dwarf mistletoe was present on 29% of plots and 9% of trees. In study areas that were previously monitored, incidence of WPBR increased over 8-9years by 6%, bark beetle-caused mortality by 17%, while dwarf mistletoe incidence remained the same. We used statistical modeling to determine meteorological, macro and micro site factors, and stand factors that influenced the occurrence and incidence of WPBR, bark beetles, and dwarf mistletoe on limber pines.Declines in health and rise in mortality due to bark beetles and WPBR has left some study areas with low limber pine basal area and stand density. These stands may be at risk for localized extirpation if the minimum viable population thresholds are not maintained and are identified as areas of concern for restoration and conservation efforts. Current condition status and long-term monitoring of limber pine is needed for land manager decision making and facilitation of restoration goals. © 2015 Published by Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65247
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Bioagricultural Sciences and Pest Management, Colorado State University, 1177 Campus Delivery, Fort Collins, CO, United States; Forest Health Protection, USDA Forest Service, 3815 N. Schreiber Way, Coeur d'Alene, ID, United States; Forest Health Protection, USDA Forest Service, 740 Simms St., Golden, CO, United States; BLM Wyoming, 5353 Yellowstone Rd., Cheyenne, WY, United States
Recommended Citation:
Cleaver C.M.,Jacobi W.R.,Burns K.S.,et al. Limber pine in the central and southern Rocky Mountains: Stand conditions and interactions with blister rust, mistletoe, and bark beetles[J]. Forest Ecology and Management,2015-01-01,358