Regional assessment of emerald ash borer, Agrilus planipennis, impacts in forests of the Eastern United States
Regional assessment of emerald ash borer, Agrilus planipennis, impacts in forests of the Eastern United States
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DOI：
10.1007/s10530-016-1296-x
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发表时间：
2017-02-01
影响因子：
2.9
通讯作者：
Crocker, Susan J.
中科院分区：
文献类型：
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作者：
Morin, Randall S.;Liebhold, Andrew M.;Crocker, Susan J.
原产于亚洲的白蜡木窄吉丁（Agrilus planipennis Fairmaire）已造成白蜡树物种（白蜡树属（Fraxinus spp.）在美国东部。截至2013年，在美国东部火山灰自然范围内的18%的县中记录了这种害虫。来自美国林务局森林资源清查和分析计划的区域森林资源清查数据被用来量化相对于最初绿白蜡螟检测年份的每公顷白蜡树死亡率和体积的趋势。结果表明，在一个县，在首次发现害虫后，白蜡树的年死亡率每年增加2.7%。火山灰的体积也相应减少（每年每公顷减少1.8立方米），这种情况还会持续几年，直到大多数活火山灰被杀死。这些结果虽然不一定代表城市生态系统对火山灰的影响，但记录了这种入侵的食草动物在北美扩大其范围时对森林的严重影响。
Native to Asia, the emerald ash borer (Agrilus planipennis Fairmaire) has caused extensive mortality of ash tree species (Fraxinus spp.) in the eastern United States. As of 2013, the pest was documented in 18 % of counties within the natural range of ash in the eastern United States. Regional forest inventory data from the U.S. Forest Service Forest Inventory and Analysis program were used to quantify trends in ash mortality rate and volume per hectare relative to the year of initial emerald ash borer detection. Results indicate that the annual ash mortality rate increases by as much as 2.7 % per year after initial detection of the pest in a county. Corresponding decreases in ash volume (as much as 1.8 m(3) per hectare per year) continue for several more years until most live ash is killed. These results, while not necessarily representative of the effects on ash in urban ecosystems, document the severe impact this invading herbivore is having on forests as it expands its range in North America.