Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.03.023 |
Mountain pine beetle outbreak enhanced resin duct-defenses of lodgepole pine trees | |
Zhao, Shiyang; Klutsch, Jennifer G.; Cale, Jonathan A.; Erbilgin, Nadir | |
2019-06-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 441页码:271-279 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Millions of hectares of lodgepole pine trees have been affected by the recent mountain pine beetle outbreaks, which also left significant numbers of live host trees in some areas. Studies have primarily focused on the changes of forest conditions in post-outbreak stands, but whether such changes impact the growth, defense, and their interactions of residual pine trees is generally unknown. In this study, we compared the growth-defense relationship of lodgepole pine trees between pre- and post-outbreak periods by examining annual radial growth rates and xylem resin duct characteristics. We also tested the effects of varying percent host tree mortality and forest stand density on the growth-defense relationship of residual pine trees. We found that resin duct densities of residual pine trees were higher and resin ducts occupied larger areas in the xylem in post-outbreak period than in pre-outbreak period. Following outbreak, the percent host mortality showed a positive relationship with the resin duct density of all healthy residual trees, while stand density did not impact any of the resin duct characteristics. We conclude that bark beetle outbreaks can alter the growth, defense, and their interactions of residual pine trees, especially in stands with greater levels of pine mortality. This study also provides an empirical evidence, suggesting that residual trees might be more resistant to future bark beetle attacks. |
英文关键词 | Pinus contorta Dendroctonus ponderosae Tree resistance Bark beetle outbreaks Post-outbreak stand conditions Tree anatomical defense |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471086600026 |
WOS关键词 | CLIMATE-CHANGE IMPACTS ; BARK BEETLES ; RANGE EXPANSION ; NORWAY SPRUCE ; RESISTANCE ; TRAITS ; GROWTH ; FOREST ; PLANTS ; ATTACK |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/183773 |
专题 | 气候变化 |
作者单位 | Univ Alberta, Dept Renewable Resources, 4-42 Earth Sci Bldg, Edmonton, AB T6G 2E3, Canada |
推荐引用方式 GB/T 7714 | Zhao, Shiyang,Klutsch, Jennifer G.,Cale, Jonathan A.,et al. Mountain pine beetle outbreak enhanced resin duct-defenses of lodgepole pine trees[J]. FOREST ECOLOGY AND MANAGEMENT,2019,441:271-279. |
APA | Zhao, Shiyang,Klutsch, Jennifer G.,Cale, Jonathan A.,&Erbilgin, Nadir.(2019).Mountain pine beetle outbreak enhanced resin duct-defenses of lodgepole pine trees.FOREST ECOLOGY AND MANAGEMENT,441,271-279. |
MLA | Zhao, Shiyang,et al."Mountain pine beetle outbreak enhanced resin duct-defenses of lodgepole pine trees".FOREST ECOLOGY AND MANAGEMENT 441(2019):271-279. |
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