Postdoctoral Research Fellowship in Biosciences Related to the Environment

这一行动为1996年国家科学基金会与环境有关的生物科学博士后研究奖学金提供了资金。该奖学金支持生态学领域的研究和培训。正在研究因牲畜放牧而改变的内华达山脉山地草甸的生态多样性，以确定重建本地禾本科物种过程中空间差异的原因和后果。基于规则的模型将结合特定地点的、定性的和轶事信息来预测给定地点的灌木-禾本科动态。一系列田间实验将调查调节类禾本科植物恢复的因果过程与物理条件之间的相互作用，如水的可用性，已知这些条件对确定生态参数很重要。这项研究通过结合定量和定性知识来确定评估替代管理方案的生态后果所需的信息，从而弥合了生态和资源管理之间的差距。

This action funds a National Science Foundation Postdoctoral Research Fellowship in Biosciences Related to the Environment for 1996. The fellowship supports research and training in the area of ecology. Ecological diversity in the montane meadows of the Sierra Nevada altered by livestock grazing is being studied to determine the causes and consequences of spatial variation in the re-establishment of native graminoid species. A rule-based model will incorporate site-specific, qualitative, and anecdotal information to predict shrub- graminoid dyanamics at a given site. A series of field experiments will investigate the interplay between causal processes regulating graminoid recovery and physical conditions, such as water availability, known to be important in determining ecological parameters. This study bridges the gap between ecology and resource management by combining quantitative and qualitative knowledge to determine the information necessary to evaluate the ecological consequences of alternative management options.