What to Preserve? An Application of Diversity Theory to Crane Conservation
展示如何将多样性理论用于分析现实中的保护政策，以全球15种野生鹤类为例，提供量化指标来指导保护优先级的决策。
This paper attempts to demonstrate how "diversity theory" can be applied to the analysis of real-world conservation policies. The specific example chosen to serve as a paradigm concerns preservation priorities among the fifteen species of cranes living wild throughout the world. The example is sufficiently actual to show how diversity theory can be used operationally to frame certain critical conservation questions and to guide us toward answers by providing informative quantitative indicators of what to protect. At the same time the cranes example is rich enough that it illustrates nicely some broad general principles about the economics of diversity preservation.