Differential defoliation and mortality of white spruce and balsam fir by eastern spruce budworm
Differential defoliation and mortality of white spruce and balsam fir by eastern spruce budworm
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东部云杉芽虫对白云杉和香脂冷杉的落叶和死亡率差异
DOI：
10.1016/j.foreco.2022.120042
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发表时间：
2022
影响因子：
3.7
通讯作者：
LaMontagne, Jalene M.
中科院分区：
文献类型：
--
作者：
Corona, Cristian;Leeper, Abigail C.;LaMontagne, Jalene M.
东部云杉budworm （Choristoneura fumiferana）是加拿大和美国的原生落叶昆虫，对森林健康有很大影响。香脂冷杉（Abies balsamea）和白色云杉（Picea glauca）是其主要寄主树，在幼虫发育过程中，budworm幼虫消耗芽和针。虽然东部云杉芽虫消耗这两种物种，但一般报道对香脂冷杉的落叶程度较高。研究不同物种的落叶和死亡的模式和条件有助于了解易感性。我们研究了美国威斯康辛州北部人工林爆发的云杉budworm， 2014年首次发现落叶，似乎对白色云杉有更高的影响，这与普遍预期相反。2019年，我们量化了云杉budworm对这两种树种的影响，并测试了哪些树木特征与树木落叶和死亡率最相关。我们发现白云杉的死亡率分别为60%和49%，而香脂冷杉的死亡率为0%。研究结果表明，与云杉幼芽脱落有关的主要因子是树种，而不是胸径或冠层级，并表明不同树种的树冠播种事件的不同时间与落叶和树木死亡率有关。
Eastern spruce budworm (Choristoneura fumiferana) is a native defoliating insect in Canada and the United States that has large impacts on forest health. Balsam fir (Abies balsamea) and white spruce (Picea glauca) are its primary host trees, where budworm larvae consume buds and needles during larval development. While Eastern spruce budworm consumes both species, it is generally reported to defoliate balsam fir at higher levels. Investigating patterns and conditions that differentiate species’ defoliation and mortality is informative for understanding susceptibility. We studied an outbreak of spruce budworm at plantations in northern Wisconsin, USA, with defoliation first detected in 2014 that appeared to have higher impacts on white spruce, which is counter to general expectations. In 2019, we quantified spruce budworm impacts on these two tree species and tested which tree characteristics were most associated with tree defoliation and mortality. We found mortality of 60% and 49% at the sites for white spruce trees, while 0% of the balsam fir trees surveyed were dead. We determined that tree species was the main factor related to spruce budworm defoliation, rather than tree diameter at breast height or canopy class and suggest that different timing of species-specific mast-seeding events were related to defoliation and tree mortality.
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寄主树种影响云杉芽虫冬季生存
影响因子：
1.7
作者：
R. Berthiaume;C. Hébert;Martin Charest;A. Dupont;É. Bauce
通讯作者：
É. Bauce
DOI：
--
发表时间：
1988
期刊：
影响因子：
--
作者：
W. J. Mattson;G. Simmons;J. Witter
通讯作者：
J. Witter
云杉芽虫落叶和年轻香脂冷杉的生长损失：间隔林中生长的恢复
DOI：
--
发表时间：
1989
期刊：
影响因子：
--
作者：
H. Piene
通讯作者：
H. Piene
定义跨物种和研究的肥大播种年限的定量方法
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
J. M. LaMontagne;S. Boutin
通讯作者：
S. Boutin
云杉芽虫 (Choristoneura fumiferana Clem.) 幼虫对某些寄主植物化学物质的取食偏好
影响因子：
2.3
作者：
P. J. Albert;P. A. Jerrett
通讯作者：
P. A. Jerrett