Accelerated forest dieback has been documented at many locations around the world that have experienced severe drought, warming, and wildfires associated with global climate change. Exotic forest diseases pose a comparably large threat to wild forests. Synthesizing surveillance plot data to parameterize spatial epidemiological models, Cobb et al. (2020, https://doi.org/10.1029/2020EF001500) estimate that the introduced invasive water mold, Phytophthora ramorum (Sudden Oak Death), has already killed 43 million trees in coastal evergreen forests of northern California and southern Oregon. Their results highlight the value of long‐term surveillance networks for monitoring and modeling the spread of invasive forest pathogens and underscore the need for stronger public policy to reduce the global spread of these extremely harmful organisms.

中文翻译：

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更多树木因干旱和野火而死亡，但不会遗忘森林病原体

全球许多地方都记录到加速的森林枯死，这些地方经历了与全球气候变化有关的严重干旱，变暖和野火。外来森林疾病对野生森林构成了相对较大的威胁。合成监视图数据以参数化空间流行病学模型，Cobb等。（2020，https://doi.org/10.1029/2020EF001500）估计引入的侵入性水霉菌疫霉（Phytophthora ramorum）（Sudden Oak Death）已经在加利福尼亚北部和俄勒冈州南部的沿海常绿森林中杀死了4,300万棵树木。他们的结果凸显了长期监测网络对入侵森林病原体传播的监测和建模的价值，并强调需要采取更强有力的公共政策来减少这些极有害生物的全球传播。