Proactive intervention to sustain high-elevation pine ecosystems threatened by white pine blister rust
Proactive intervention to sustain high-elevation pine ecosystems threatened by white pine blister rust
复制标题
积极干预以维持受白松锈病威胁的高海拔松树生态系统
DOI：
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发表时间：
2007
影响因子：
1.5
通讯作者：
R. Sniezko
中科院分区：
文献类型：
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作者：
A. Schoettle;R. Sniezko
直到最近才开始努力解决如何管理目前健康的森林，以影响既定的非本地害虫入侵的结果。引起白松疱锈病（WPBR）的真菌茶藨子生柱锈菌是引入北美的真菌之一，在那里遏制和根除失败;疾病继续蔓延。在成熟的五针白松林中，高的锈病引起的死亡率损害了生态系统的功能。本文评估了五个积极主动的管理方案，以减轻白松疱锈病在北美西部受威胁的偏远高海拔五针松生态系统的发展所造成的影响。它们是：减少害虫种群;管理森林组成;提高寄主活力;通过人工更新引进抗性砧木，使龄级结构多样化，影响抗性的自然选择过程。主动干预，以管理和促进宿主物种的进化变化可能会维持宿主种群和生态系统功能在病原体归化。
Only recently have efforts begun to address how management might prepare currently healthy forests to affect the outcome of invasion by established non-native pests. Cronartium ribicola, the fungus that causes the disease white pine blister rust (WPBR), is among the introductions into North America where containment and eradication have failed; the disease continues to spread. Ecosystem function is impaired by high rust-caused mortality in mature five-needle white pine forests. This paper evaluates five proactive management options to mitigate the development of impacts caused by white pine blister rust in threatened remote high-elevation five-needle pine ecosystems of western North America. They are: reducing pest populations; managing forest composition; improving host vigor; introducing resistant stock with artificial regeneration; and diversifying age class structure to affect the natural selection process for resistance. Proactive intervention to manage and facilitate evolutionary change in the host species may sustain host populations and ecosystem function during pathogen naturalization.