Hydrologic refugia, plants, and climate change

© 2017 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 23(2017), 8 vom: 17. Aug., Seite 2941-2961
1. Verfasser: McLaughlin, Blair C (VerfasserIn)
Weitere Verfasser: Ackerly, David D, Klos, P Zion, Natali, Jennifer, Dawson, Todd E, Thompson, Sally E
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Review climate change conservation fog groundwater hydrologic niche hydrologic refugia microrefugia refugia
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520 |a Climate, physical landscapes, and biota interact to generate heterogeneous hydrologic conditions in space and over time, which are reflected in spatial patterns of species distributions. As these species distributions respond to rapid climate change, microrefugia may support local species persistence in the face of deteriorating climatic suitability. Recent focus on temperature as a determinant of microrefugia insufficiently accounts for the importance of hydrologic processes and changing water availability with changing climate. Where water scarcity is a major limitation now or under future climates, hydrologic microrefugia are likely to prove essential for species persistence, particularly for sessile species and plants. Zones of high relative water availability - mesic microenvironments - are generated by a wide array of hydrologic processes, and may be loosely coupled to climatic processes and therefore buffered from climate change. Here, we review the mechanisms that generate mesic microenvironments and their likely robustness in the face of climate change. We argue that mesic microenvironments will act as species-specific refugia only if the nature and space/time variability in water availability are compatible with the ecological requirements of a target species. We illustrate this argument with case studies drawn from California oak woodland ecosystems. We posit that identification of hydrologic refugia could form a cornerstone of climate-cognizant conservation strategies, but that this would require improved understanding of climate change effects on key hydrologic processes, including frequently cryptic processes such as groundwater flow 
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650 4 |a conservation 
650 4 |a fog 
650 4 |a groundwater 
650 4 |a hydrologic niche 
650 4 |a hydrologic refugia 
650 4 |a microrefugia 
650 4 |a refugia 
700 1 |a Ackerly, David D  |e verfasserin  |4 aut 
700 1 |a Klos, P Zion  |e verfasserin  |4 aut 
700 1 |a Natali, Jennifer  |e verfasserin  |4 aut 
700 1 |a Dawson, Todd E  |e verfasserin  |4 aut 
700 1 |a Thompson, Sally E  |e verfasserin  |4 aut 
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856 4 0 |u http://dx.doi.org/10.1111/gcb.13629  |3 Volltext 
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