Historical biogeography of tree species in the pacific northwest: a niche modeling approach

太平洋西北部树种的历史生物地理学：生态位建模方法

• 批准号: 330527-2007
• 负责人: Hamann, Andreas
• 金额: $ 1.19万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=429097
• 关键词: Historical; biogeography; tree; species; pacific

Genetic diversity and geographic patterns of genetic variation in tree species today are to a large extent the result of their recent evolutionary history. Above all, recurring ice ages and warm-periods have had profound effects on the geographical distributions and patterns of genetic diversity in tree species in Canada. Knowledge of these dynamic histories and the resulting patterns of genetic variation helps us to manage genetic resources of tree species in tree improvement programs and to conserve genetic diversity and evolutionary potential in natural tree populations. Further, understanding how species have responded to climate change in the past through migration, adaptation, range expansion, and/or extirpation of populations will help us to predict their vulnerability to anthropogenic climate change in the future.

今天树种的遗传多样性和遗传变异的地理模式在很大程度上是它们最近进化历史的结果。最重要的是，反复出现的冰期和暖期对加拿大树种的地理分布和遗传多样性模式产生了深远的影响。这些动态的历史和由此产生的遗传变异模式的知识，有助于我们管理树木改良计划的树种的遗传资源，并保护遗传多样性和进化潜力的天然树木种群。此外，了解过去物种如何通过迁移、适应、范围扩张和/或种群灭绝来应对气候变化，将有助于我们预测它们在未来对人为气候变化的脆弱性。