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Toward a Management Framework for Networks of Protected Areas in the Face of Climate Change

机译：建立面对气候变化的保护区网络管理框架

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Networks of sites of high importance for conservation of biological diversity are a cornerstone of current conservation strategies but are fixed in space and time. As climate change progresses, substantial shifts in species' ranges may transform the ecological community that can be supported at a given site. Thus, some species in an existing network may not be protected in the future or may be protected only if they can move to sites that in future provide suitable conditions. We developed an approach to determine appropriate climate-change adaptation strategies for individual sites within a network that was based on projections of future changes in the relative proportions of emigrants (species for which a site becomes climatically unsuitable), colonists (species for which a site becomes climatically suitable), and persistent species (species able to remain within a site despite the climatic change). Our approach also identifies key regions where additions to a network could enhance its future effectiveness. Using the sub-Saharan African Important Bird Area (IBA) network as a case study, we found that appropriate conservation strategies for individual sites varied widely across sub-Saharan Africa, and key regions where new sites could help increase network robustness varied in space and time. Although these results highlight the potential difficulties within any planning framework that seeks to address climate-change adaptation needs, they demonstrate that such planning frameworks are necessary, if current conservation strategies are to be adapted effectively, and feasible, if applied judiciously.
机译：对生物多样性的保护具有重要意义的地点网络是当前保护战略的基石，但在空间和时间上是固定的。随着气候变化的进行，物种范围的重大变化可能改变可以在给定地点得到支持的生态群落。因此，现有网络中的某些物种将来可能不会受到保护，或者只有在它们能够迁移到将来提供合适条件的站点时才可能受到保护。我们开发了一种方法，用于确定网络中各个地点的适当气候变化适应策略，该方法基于对移民（地点在气候上不合适的物种），殖民者（地点在当地的物种）的相对比例的未来变化的预测变得适合气候）和持久物种（尽管气候变化，物种仍可以留在某个地点）。我们的方法还确定了关键区域，在这些区域中添加网络可以增强其未来的有效性。通过使用撒哈拉以南非洲重要鸟类保护区（IBA）网络为例，我们发现，在整个撒哈拉以南非洲，针对单个场所的适当保护策略差异很大，而在新地区可以帮助提高网络稳健性的关键地区，空间和空间的差异也很大。时间。尽管这些结果突显了任何旨在解决气候变化适应需求的规划框架中的潜在困难，但它们表明，如果要有效地适应当前的保护策略，并且如果明智地应用，这种规划框架是必要的。

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