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Quantifying the contribution of conservation easements to large-landscape conservation
Biological Conservation ( IF 5.9 ) Pub Date : 2019-04-01 , DOI: 10.1016/j.biocon.2019.01.024
Rose A. Graves , Matthew A. Williamson , R. Travis Belote , Jodi S. Brandt

Abstract Private lands are critical for conservation of ecosystem diversity and sustaining large-scale ecological processes. Increasingly, conservation easements (CE) are used as a tool to protect private land from future development; yet, few studies have examined whether contemporary patterns of CE effectively contribute to landscape-scale biodiversity and ecosystem conservation goals. We analyzed the distribution of 1223 CE established between 1970 and 2016 in the High Divide, a region dominated by public lands and of national conservation importance in the Rocky Mountains of the United States, with respect to ecosystem representation and landscape connectivity, two common large-scale conservation goals. We found that CE were frequently located closer to water and to other land protected for biodiversity (e.g., GAP 1 and 2 status) than were private lands more generally. CE provided increased representation within the protected areas network for 10% of the ecosystems within the region, particularly for mesic and riparian areas. Despite the addition of CE to the protected areas network, we found insufficient representation for 43 out of 87 ecosystems (

中文翻译:

量化保护地役权对大景观保护的贡献

摘要 私有土地对于保护生态系统多样性和维持大规模生态过程至关重要。保护地役权(CE)越来越多地被用作保护私人土地免受未来发展的工具;然而,很少有研究检查当代 CE 模式是否有效地促进了景观尺度的生物多样性和生态系统保护目标。我们分析了 1970 年至 2016 年间建立的 1223 CE 在 High Divide 的分布,该地区以公共土地为主,在美国落基山脉具有国家保护重要性,在生态系统代表性和景观连通性方面,两个常见的大规模保护目标。我们发现 CE 通常更靠近水和其他受生物多样性保护的土地(例如,GAP 1 和 2 状态)比私人土地更普遍。CE 在保护区网络中为该地区 10% 的生态系统提供了更多的代表,特别是在中间和河岸地区。尽管在保护区网络中增加了 CE,但我们发现 87 个生态系统中的 43 个的代表性不足(
更新日期:2019-04-01
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