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more general categories information about this item Biological Sciences Biological Sciences organisms (108862) pests (10947) arthropod pests (2654) insect pests (2614) bark beetles (163) plants (35960) conifers (590) trees (7529) Calendar Year Calendar Year Year (337475) 2013 (32153) Economics, Business and Industry Economics, Business and Industry economics (27895) industrial organization and market structure (7082) industry (6905) service industry (732) tourism (263) Forest Science and Forest Products Forest Science and Forest Products forest ecology (3044) forest fires (283) forests (8570) forest types (1726) Geographical Locations Geographical Locations North America (16962) United States (12631) Health and Pathology Health and Pathology plant health (10173) plant diseases and disorders (4074) decline (169) Insects and Entomology Insects and Entomology insects (6001) insect pests (2614) bark beetles (163) Natural Resources, Earth and Environmental Sciences Natural Resources, Earth and Environmental Sciences atmospheric sciences (22912) meteorology and climatology (21777) weather (12535) drought (2553) ecology (54081) community ecology (22291) biodiversity (9506) forest ecology (3043) forest fires (283) fire science and management (2055) fires (1410) wildfires (795) forest fires (283) natural resources (75944) biological resources (55960) biodiversity (9504) vegetation (14356) vegetation types (11917) forests (8569) forest types (1726) Plant Science and Plant Products Plant Science and Plant Products plant health (10173) plant diseases and disorders (4074) decline (169) plants (35961) conifers (590) trees (7529) Reference Types Reference Types Journal (337546) Research, Technology and Engineering Research, Technology and Engineering research (30526) research methods (29174) experimental design (1618) Rural and Agricultural Sociology Rural and Agricultural Sociology leisure, recreation and tourism (847) tourism (263) Taxa - Plantae Taxa - Plantae Magnoliophyta (59301) Magnoliopsida (45501) Malpighiales (2718) Salicaceae (1016) Populus (801) Populus tremuloides (206) Abstract of Article: Will be presented in next release Date Last Accessed: Accessed January 20, 2015 Title of Article: Long-term aspen cover change in the western US Author(s) of Article: Will be identified in next release Citation: Forest ecology and management 2013 v.299 pp. 52-59 Click to View: (Click to View) Date of Publication: 2013 Location of Article: http://pubag.nal.usda.gov/pubag/article.xhtml?id=442047 Name of Publication: Forest ecology and management Publishing Company: Will be identified in next release Accession Number: 77330