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Conservation ecology of rare plants within complex local habitat networks

机译：复杂的局部生境网络内稀有植物的保护生态

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Effective conservation of rare plant species requires a detailed understanding of their unique distributions and habitat requirements to identify conservation targets. Research suggests that local conservation efforts may be one of the best means for accomplishing this task. We conducted a geographical analysis of the local distributions of rare plants in Napa County, California, to identify spatial relationships with individual habitat types. We measured the potential contribution of individual habitats to rare plant conservation by integrating analyses on overall diversity, species per area, specificity-weighted richness, presence of hotspots, and the composition of the rare plant community in each habitat type. This combination of analyses allowed us to determine which habitats are most significant for rare plant conservation at a local scale. Our analyses indicated that several habitat types were consistently associated with rare plant species. In broad terms, grasslands, oak forests, coniferous forests, wetlands, serpentines, chaparral, and rock outcrops were most consistently highlighted. No single habitat stood out in every analysis however, and therefore we conclude that careful selection of an assemblage of habitats that best represents diverse, restricted and unique rare plant communities will be the most efficient approach to protecting rare plant habitat at local scales. Accordingly we present a means of identifying conservation targets and protecting global biodiversity through local efforts.
机译：有效保护稀有植物物种需要对它们的独特分布和栖息地要求有详细的了解，以确定保护目标。研究表明，地方保护工作可能是完成这项任务的最佳手段之一。我们对加利福尼亚州纳帕县的稀有植物的本地分布进行了地理分析，以确定与单个生境类型的空间关系。我们通过综合分析总体多样性，每个区域的物种，特异性加权丰富度，热点的存在以及每种生境类型中稀有植物群落的组成，分析了单个生境对稀有植物保护的潜在贡献。这些分析的结合使我们能够确定哪些栖息地对于当地规模的稀有植物保护最为重要。我们的分析表明，几种生境类型一直与稀有植物物种相关。从广义上讲，草原，橡树林，针叶林，湿地，蛇纹石，丛林和岩石露头最为突出。但是，在每次分析中都没有一个栖息地能脱颖而出，因此，我们得出结论，仔细选择最能代表多样化，受限制和独特的稀有植物群落的栖息地集合，将是在地方规模上保护稀有植物栖息地的最有效方法。因此，我们提出了一种通过地方努力确定保护目标和保护全球生物多样性的方法。

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