Dissertation Research: Resource Allocation and the Maintenance of Gynodioecy

理论工作的速度远远超过了经验研究， 研究雌核发育的进化和维持 一种特殊的交配系统，在这种系统中， 雌性或雌雄同体。 拟议的研究将探讨 营养限制在影响生殖方面的重要性 西达尔恰属雌株异株种群的分配格局 牛至亚种一种原产于塞拉利昂的多年生植物 内华达州。 可供植物在该领域的资源将 对养分分配模式的操纵和记录将 被绑起来了 这项工作将是第一个解决 营养分配格局的意义 物种，它将阐明资源为基础的有效性 支持雌蕊异花器的论据 本研究还涉及山区的资源利用模式 多年生植物，目前的知识特别薄弱的领域。 关于营养限制的信息可应用于 重新植被 如今，越来越多的栖息地复垦项目 使用本地物种。 此外， 对本地物种高质量种子的需求 园艺业。这项研究的结果将有助于 了解野生植物如何利用资源 栖息地 //

Theoretical work has far out-paced empirical studies in addressing the evolution and maintenance of gynodioecy a specialized mating system in which individual plants are either female or hermaphroditic. The proposed study will explore the importance of the nutrient limitation in influencing reproductive allocation patterns in a gynodioecious population of Sidalcea oregana ssp. spicata, a perennial plant native to the Sierra Nevada. Resources available to plants in the field will bemanipulated and records of nutrient allocation patterns will becompiled. This work will be the first to address the implications of nutrient allocation patterns in a gynodioecious species and it will shed light on the validity of resource-based arguments for the maintenance of gynodioecy. This study also concerns resource use patterns in a montane perennial, an area in which current knowledge is especially weak. Information on nutrient limitation may be applied to programs of revegetation. Today, more and more habitat reclamation projects involve the use of native species. Moreover, there is a growing demand for high quality seeds from native species in the horticultural industry. Results from this study will contribute to understanding how resources are used by wild plants in native habitat. //