Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/ab215f |
Impacts of climate and insect herbivory on productivity and physiology of trembling aspen (Populus tremuloides) in Alaskan boreal forests | |
Boyd, Melissa A.1; Berner, Logan T.2; Doak, Patricia3; Goetz, Scott J.2; Rogers, Brendan M.4; Wagner, Diane3; Walker, Xanthe J.1; Mack, Michelle C.1 | |
2019-08-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2019 |
卷号 | 14期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Climate change is impacting forested ecosystems worldwide, particularly in the Northern Hemisphere where warming has increased at a faster rate than the rest of the globe. As climate warms, trembling aspen (Populus tremuloides) is expected to become more successful in northern boreal forests because of its current presence in drier areas of North America. However, large-scale productivity decline of aspen has recently been documented throughout the United States and Canada as a result of drought and insect outbreaks. We used tree ring measurements (basal area increment (BAI) and stable carbon isotopes (delta C-13) and remote sensing indices of vegetation productivity (NDVI) to study the impact of climate and damage by the aspen epidermal leaf miner (Phyllocnistis populiella) on aspen productivity and physiology in interior Alaska. We found that productivity decreased with greater leaf mining and was not sensitive to growing season (GS) moisture availability. Although productivity decreased during high leaf mining years, it recovered to pre-outbreak levels during years of low insect damage, suggesting a degree of resilience to P. populiella mining. Climate and leaf mining interacted to influence tree ring delta C-13, with greater leaf mining resulting in decreased delta C-13 when GS moisture availability was low. We also found that NDVI was negatively associated with leaf mining, and positively correlated with BAI and the delta C-13 decrease corresponding to mining. This suggests that NDVI is capturing not only variations in productivity, but also changes in physiology associated with P. populiella. Overall, these findings indicate that the indirect effects of P. populiella mining have a larger impact on aspen productivity and physiology than climate under current conditions, and is essential to consider when assessing growth, physiology and NDVI trends in interior Alaska. |
英文关键词 | tree rings climate change stable carbon isotopes aspen epidermal leaf miner satellite remote sensing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000478679300002 |
WOS关键词 | MINER PHYLLOCNISTIS-POPULIELLA ; OXYGEN-ISOTOPE SIGNALS ; LEAF MINER ; RADIAL GROWTH ; CARBOHYDRATE RESERVES ; MOTH DEFOLIATION ; STABLE-ISOTOPES ; REDUCED GROWTH ; TREE-RINGS ; CARBON |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185636 |
专题 | 气候变化 |
作者单位 | 1.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA; 2.No Arizona Univ, Sch Informat Comp & Cyber Syst, Flagstaff, AZ 86011 USA; 3.Univ Alaska, Dept Biol & Wildlife, Inst Arctic Biol, Fairbanks, AK 99775 USA; 4.Woods Hole Res Ctr, Falmouth, MA USA |
推荐引用方式 GB/T 7714 | Boyd, Melissa A.,Berner, Logan T.,Doak, Patricia,et al. Impacts of climate and insect herbivory on productivity and physiology of trembling aspen (Populus tremuloides) in Alaskan boreal forests[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(8). |
APA | Boyd, Melissa A..,Berner, Logan T..,Doak, Patricia.,Goetz, Scott J..,Rogers, Brendan M..,...&Mack, Michelle C..(2019).Impacts of climate and insect herbivory on productivity and physiology of trembling aspen (Populus tremuloides) in Alaskan boreal forests.ENVIRONMENTAL RESEARCH LETTERS,14(8). |
MLA | Boyd, Melissa A.,et al."Impacts of climate and insect herbivory on productivity and physiology of trembling aspen (Populus tremuloides) in Alaskan boreal forests".ENVIRONMENTAL RESEARCH LETTERS 14.8(2019). |
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