白皮松的辅助迁移及其纬度限制

J. Wood
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引用次数: 0

摘要

白皮松是一种高山树种,尽管在不列颠哥伦比亚省北部存在未殖民化的适宜栖息地,但白皮松的生存范围仅限于北纬55度。目前尚不清楚是什么限制了它向北的分布。白皮松的种子传播依赖于一种鸟类,克拉克胡桃鸦,因此,必须研究这种鸟的局限性。由于最佳种子贮藏地点位于最近被烧毁的地点,因此本文假设北方森林的火灾状况不利于这些地点的建立。辅助移民项目必须通过解决克拉克的胡桃夹子的需求,更多地关注长期的再生。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assisted Migration and Latitudinal Limitations of Whitebark Pine
Whitebark pine, a high alpine tree species, is limited up to 55N despite uncolonized suitable habitat that exists in Northern British Columbia. It is unclear what limits its northward distribution. Whitebark pine is dependent upon a bird species, Clark’s nutcracker, for its seed dispersal, therefore, the bird’s limitations must be examined. As optimal seed caching sites are located in recently burned sites, this paper hypothesizes that the fire regime in northern forests is not conducive for the creation of these sites. Assisted migration projects must focus more attention to long-term regeneration by addressing the needs of Clark’s nutcracker.
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