Population dynamics of ash across the eastern USA following invasion by emerald ash borer
Population dynamics of ash across the eastern USA following invasion by emerald ash borer
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翡翠螟入侵后美国东部的白蜡种群动态
DOI：
10.1016/j.foreco.2020.118574
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发表时间：
2021
影响因子：
3.7
通讯作者：
Fei, Songlin
中科院分区：
文献类型：
--
作者：
Ward, Samuel F.;Liebhold, Andrew M.;Morin, Randall S.;Fei, Songlin
非本地昆虫和病原体可以改变森林的组成和演替轨迹，在特殊情况下，会使其宿主树木功能性灭绝。在北美东部的入侵范围内，祖母绿灰螟已经杀死了数百万棵灰树。预测未来的生态作用的灰需要的信息灰再生和招聘的程度在入侵之后。可变水平的灰再生已被观察到的立场入侵的祖母绿灰螟，虽然招聘率的年轻灰树到上层仍不清楚。在这里，我们使用森林资源调查数据来量化美国东部的灰补充和再生，并将这些观察到的模式与绿灰螟入侵历史联系起来。2013-2018年的库存数据表明，入侵地区有广泛的火山灰再生，2002-2006年入侵的县每公顷共有> 1，200株幼苗。在县与最长的入侵历史的地块包含最高密度的灰苗和树苗，可能是由于高密度的上层灰在这些地区的祖母绿灰螟入侵之前。无论入侵历史如何，在2007年至2018年结束的库存期之间，幼苗密度也基本保持不变。尽管这种广泛的再生，白蜡树在最小的overstory类死亡的速度比他们从幼苗或树苗招募，导致负的人口轨迹的地块已被入侵超过10年。这一趋势表明，火山灰的丰度将继续下降，并可能在侵入的祖母绿灰螟范围内功能性灭绝。然而，未来的生态作用，灰将最终确定的迭代生产和生存的灰种子的生殖年龄在祖母绿灰螟种群的存在，沿着有效的管理措施。
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.
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DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
J. D. Castello;S. Teale
通讯作者：
S. Teale
白蜡树苗中白蜡虫的生物防治：北美白蜡树早期恢复的潜力
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
J. Duan;L. Bauer;R. Driesche
通讯作者：
R. Driesche
白蜡树 (Fraxinus americana) 在白蜡螟 (Agrilus planipennis) 入侵的核心中生存
影响因子：
2.2
作者：
M. Robinett;D. McCullough
通讯作者：
D. McCullough
美国东部 EAB 侵染后主要和次要白蜡树属（Fraxinus spp.）再生的潜力
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
Joshua J. Granger;John M. Zobel;D. Buckley
通讯作者：
D. Buckley
影响因子：
2.9
作者：
Morin, Randall S.;Liebhold, Andrew M.;Crocker, Susan J.
通讯作者：
Crocker, Susan J.