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Difficult decisions: Strategies for conservation prioritization when taxonomic, phylogenetic and functional diversity are not spatially congruent
Biological Conservation ( IF 5.9 ) Pub Date : 2018-09-01 , DOI: 10.1016/j.biocon.2018.06.014
Marc W. Cadotte , Caroline M. Tucker

Abstract Preventing further loss of biodiversity is the most important challenge for conservation biology. The loss of species and the functions and services they provide has negative implications for human well-being. However, conservation efforts focussed on sites with high numbers of species may inadvertently under-represent other facets of biodiversity such as phylogenetic and functional diversity. Further, because these different biodiversity facets vary in their degree of spatial congruence, methods of site selection that maximize phylogenetic, functional, and species diversity are necessary to represent biodiversity in a holistic fashion. In this paper we discuss approaches to such multi-faceted site-level prioritization. Specifically, we examine complementarity algorithms and provide strategies to weight species selection by their trait or phylogenetic distinctiveness. Further, we explore approaches that integrate diversity facets into a single measure of prioritization and incorporate complementarity such that the goal is not just optimizing the protection of biodiversity, but to prioritize the addition of sites representing unprotected biodiversity across different facets. We highlight the strengths and limitations of such an approach. These types of holistic approaches to reserve design should provide flexibility in the face of changing knowledge and priorities.

中文翻译:

艰难的决定:分类、系统发育和功能多样性在空间上不一致时的保护优先级策略

摘要 防止生物多样性进一步丧失是保护生物学面临的最重要挑战。物种及其提供的功能和服务的丧失对人类福祉产生负面影响。然而,集中在物种数量多的地点的保护工作可能无意中低估了生物多样性的其他方面,如系统发育和功能多样性。此外,由于这些不同的生物多样性方面的空间一致性程度各不相同,因此需要最大限度地提高系统发育、功能和物种多样性的选址方法,以整体方式表示生物多样性。在本文中,我们讨论了这种多方面站点级优先级排序的方法。具体来说,我们研究了互补算法,并提供了通过物种特征或系统发育独特性来衡量物种选择的策略。此外,我们探索了将多样性方面整合到一个优先排序的单一衡量标准中并结合互补性的方法,这样目标不仅是优化生物多样性的保护,而且优先考虑在不同方面增加代表未受保护的生物多样性的地点。我们强调了这种方法的优点和局限性。面对不断变化的知识和优先事项,这些类型的保护区设计整体方法应该提供灵活性。我们探索将多样性方面整合到一个单一的优先级衡量标准中并结合互补性的方法,这样目标不仅是优化生物多样性的保护,而且优先考虑增加代表不同方面未受保护生物多样性的地点。我们强调了这种方法的优点和局限性。面对不断变化的知识和优先事项,这些类型的保护区设计整体方法应该提供灵活性。我们探索将多样性方面整合到一个单一的优先级衡量标准中并结合互补性的方法,这样目标不仅是优化生物多样性的保护,而且优先考虑增加代表不同方面未受保护生物多样性的地点。我们强调了这种方法的优点和局限性。面对不断变化的知识和优先事项,这些类型的保护区设计整体方法应该提供灵活性。
更新日期:2018-09-01
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