Differential Selection of Host Trees by Dependent Species: A Field Test of Diversifying Selection in Ponderosa Pine

依存物种对寄主树的差异选择：黄松多样化选择的田间试验

• 批准号: 9120065
• 负责人: Yan Linhart
• 金额: $ 10万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-03-01 至 1995-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9120065&HistoricalAwards=false
• 关键词: Differential; Selection; Host; Trees; Dependent

This proposal focuses on interactions between ponderosa pine and four species that feed upon it. These include the Abert squirrel, the porcupine, the dwarf-mistletoe and the bark beetle. All four species feed on pine phloem, thereby causing severe loss of vigor and mortality in this pine. We test the hypothesis that each species selects different ponderosa pine phenotypes. Results will provide a clearer understanding of the complex consequences of multi-species interactions natural communities. In addition, they will allow forest managers throughout the western USA to better protect these commercially important forests from damage by these species.

该提案的重点是黄松和以其为食的四种物种之间的相互作用。其中包括Abert松鼠，豪猪，矮人 - 米斯特莱特和树皮甲虫。 所有四种物种都以松树韧皮部为食，从而导致这种松树的活力和死亡率严重丧失。 我们测试了每个物种选择不同的黄松表型的假设。 结果将对多物种相互作用自然社区的复杂后果提供更清晰的理解。 此外，它们还将允许整个美国西部的森林经理更好地保护这些非常重要的森林免受这些物种的破坏。