Evaluating climate-driven fallowing for ecological connectivity of species at risk
Evaluating climate-driven fallowing for ecological connectivity of species at risk
复制标题
评估气候驱动的休耕对濒危物种的生态连通性
DOI：
10.1007/s10980-022-01522-9
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发表时间：
2022
影响因子：
5.2
通讯作者：
Larsen, Ashley E.
中科院分区：
文献类型：
--
作者：
McComb, Sofie;Powers, L. Claire;Larsen, Ashley E.
背景气候变化和农业土地利用变化正在改变农业景观中自然土地的配置，影响物种在剩余(半)自然区之间自由移动的能力。为生物多样性留出工作用地的成本本来就很高，这使得建立更多促进连接的永久保护区具有挑战性。然而，即使是暂时增加连通性，也可能使基因流动增加，从而对物种健康和可持续发展产生长期好处。目标在这里，我们探索动态保护保护区的潜力，以临时或半永久休耕的农田的形式，增加集约农业区的连通性。方法我们评估休耕土地的潜力，以促进美国加利福尼亚州集约化农业景观圣华金河谷濒危物种的功能栖息地连通性。我们进行了景观连通性分析，以检验2011年至2017年期间干旱导致的休耕对濒危的圣华金狐狸(Vulpe Mactis Mutica)在克恩县内的连通性可能产生的影响。结果我们发现，从2011年到2015年/2017年，克恩县休耕土地的增加可能对应于斑点狐狸功能连通性的增加，包括显著降低了累计旅行成本(在不同的模型情景下，2015/2017年的 分别为0.8%至18%和0.3%至12.2%)。这些显著的减少表明，随着休耕的增加，在核心栖息地之间旅行的狐狸产生的累积能源成本可能会降低，半永久休耕土地的估计收益平均是更多临时休耕土地的2.4倍。结论我们的结果强调了机会主义和动态的保护行动有可能减少工作景观中生物多样性保护和农业生产之间的冲突，通过临时或半永久休耕土地增加景观连通性。鼓励建立动态的休耕保护区的农业环境项目可以帮助土地所有者管理减少的地下水供应，同时改善物种在面对气候变化时的流动性。
ContextClimate change and agricultural land use change are modifying the configuration of natural lands within agricultural landscapes, impacting species’ ability to move freely between remaining (semi-)natural areas. Working lands are inherently costly to set aside for biodiversity, making the establishment of additional permanent reserves that facilitate connectivity challenging. Yet, even temporary increases in connectivity may enable increased gene flow with long-term benefits for species health and persistence.ObjectivesHere we explore the potential for dynamic conservation reserves, in the form of either temporarily or semi-permanently fallowed croplands, to increase connectivity in intensive agricultural regions.MethodsWe evaluate the potential for fallowed lands to facilitate functional habitat connectivity for an at-risk species in the San Joaquin Valley, an intensive agricultural landscape in California, USA. We perform landscape connectivity analyses to examine how drought-induced fallowing between 2011 and 2017 may have impacted connectivity within Kern County for the endangered San Joaquin kit fox (Vulpes macrotis mutica).ResultsWe found that an increase in fallowed lands from 2011 to 2015/2017 in Kern County likely corresponded to increased functional connectivity for the kit fox, including significant decreases in cumulative cost to distance traveled (~ 0.8 to 18% and 0.3 to 12.2% in 2015/2017 respective to 2011 across different model scenarios). These significant reductions indicate that cumulative energy costs incurred by kit foxes traveling between core habitats likely decreased with an increase in fallowing, with the estimated benefits from semi-permanently fallowed lands on average 2.4 times greater than for more temporarily fallowed lands.ConclusionsOur results highlight that opportunistic and dynamic conservation actions have the potential to reduce conflict between biodiversity preservation and agricultural production in working landscapes by increasing landscape connectivity via temporarily or semi-permanently fallowed parcels. Agri-environmental programs incentivizing the creation of dynamic, fallowing-based reserves could help landowners manage reduced groundwater availability while improving species’ mobility in the face of climate change.
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DOI：
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发表时间：
1998
期刊：
影响因子：
--
作者：
G. Warrick;B. Cypher
通讯作者：
B. Cypher
土狼和圣华金套件狐狸的栖息地和食物使用有重叠。
DOI：
--
发表时间：
1995
期刊：
影响因子：
--
作者：
P. J. White;K. Ralls;C. A. V. White
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C. A. V. White
圣华金河谷地下水的可持续性：如果战略性地退役和恢复农业用地，将带来多重好处
影响因子：
1.3
作者：
R. Kelsey;A. Hart;H. S. Butterfield;D. Vink
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加利福尼亚州圣华金沙漠的栖息地恢复机会、气候生态位收缩和保护生物地理学
影响因子：
3.7
作者：
J. Stewart;H. S. Butterfield;Jonathan Q Richmond;David J. Germano;Michael F Westphal;Erin N. Tennant;B. Sinervo
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B. Sinervo
影响因子：
4.7
作者：
Bryant, Benjamin P.;Kelsey, T. Rodd;Butterfield, H. Scott
通讯作者：
Butterfield, H. Scott