Regional assessment of emerald ash borer, Agrilus planipennis, impacts in forests of the Eastern United States

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• 作者：Randall S. Morin ; Andrew M. Liebhold ; Scott A. Pugh…
• 关键词：Agrilus planipennis ; Fraxinus spp. ; Emerald ash borer ; Invasive pest ; Mortality rates ; Forest inventory
• 刊名：Biological Invasions
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：19
• 期：2
• 页码：703-711
• 全文大小：
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Ecology; Freshwater & Marine Ecology; Plant Sciences; Developmental Biology;
• 出版者：Springer International Publishing
• ISSN：1573-1464
• 卷排序：19

文摘

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 m3 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.