气候变化领域集成服务门户(CCPortal): Population dynamics of ash across the eastern USA following invasion by emerald ash borer

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DOI	10.1016/j.foreco.2020.118574
	Population dynamics of ash across the eastern USA following invasion by emerald ash borer
	Ward S.F.; Liebhold A.M.; Morin R.S.; Fei S.
发表日期	2021
ISSN	0378-1127
卷号	479
英文摘要	Non-native insects and pathogens can alter the composition and successional trajectories of forests and, in exceptional cases, drive their host trees functionally extinct. Emerald ash borer has killed millions of ash trees in its invaded range across eastern North America. Predicting the future ecological role of ash requires information on the extent of ash regeneration and recruitment in the wake of invasion. Variable levels of ash regeneration have been observed in stands invaded by emerald ash borer, although recruitment rates of young ash trees into the overstory remain unclear. Here, we used forest inventory data to quantify ash recruitment and regeneration across the eastern United States, and we linked these observed patterns to emerald ash borer invasion history. Inventory data from 2013-2018 indicate there has been extensive ash regeneration in invaded regions, totaling > 1,200 seedlings per ha in counties invaded in 2002–2006. Plots in counties with the longest invasion histories contained the highest densities of ash seedlings and saplings, likely due to the high densities of overstory ash in these areas prior to invasion by emerald ash borer. Seedling densities also remained generally unchanged between inventory periods ending in 2007 and 2018 irrespective of invasion history. Despite this widespread regeneration, ash trees in the smallest overstory class died at faster rates than they were recruited from seedlings or saplings, resulting in negative population trajectories on plots that have been invaded for more than ~ 10 years. This trend suggests that ash will continue to decline in abundance and may become functionally extinct across the invaded range of emerald ash borer. However, the future ecological role of ash will ultimately be determined by the iterative production and survival of ash seeds to reproductive ages in the presence of emerald ash borer populations, along with effective management practices. © 2020 Elsevier B.V.
英文关键词	Agrilus planipennis; Disturbance; Forest; Fraxinus; Invasion; Wood-borer
语种	英语
scopus关键词	Digital storage; Ecology; Gems; Eastern north america; Ecological roles; Effective management; Emerald ash borer; Forest inventory data; Negative populations; Recruitment rates; Seedling density; Reforestation; ash; biological invasion; forest inventory; host plant; host-pathogen interaction; insect; moth; overstory; population dynamics; recruitment (population dynamics); regeneration; succession; survival; Ash; Ecology; Gems; Recruitment; Reforestation; Seedlings; Trajectories; Trees; United States; Agrilus planipennis; Fraxinus; Hexapoda
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154912
作者单位	Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, United States; USDA Forest Service, Northern Research Station, Morgantown, WV 26505, United States; Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Praha 6, Suchdol 165 00, Czech Republic; USDA Forest Service, Northern Research Station, York, PA 17402, United States
推荐引用方式 GB/T 7714	Ward S.F.,Liebhold A.M.,Morin R.S.,et al. Population dynamics of ash across the eastern USA following invasion by emerald ash borer[J],2021,479.
APA	Ward S.F.,Liebhold A.M.,Morin R.S.,&Fei S..(2021).Population dynamics of ash across the eastern USA following invasion by emerald ash borer.Forest Ecology and Management,479.
MLA	Ward S.F.,et al."Population dynamics of ash across the eastern USA following invasion by emerald ash borer".Forest Ecology and Management 479(2021).