A landscape-scale framework to identify refugia from multiple stressors.

Autor: Rojas IM; Department of Biology, San Diego State University, San Diego, California, USA., Jennings MK; Department of Biology, San Diego State University, San Diego, California, USA.; Institute for Ecological Monitoring and Management, San Diego State University, San Diego, California, USA., Conlisk E; Department of Biology, San Diego State University, San Diego, California, USA.; Point Blue Conservation Science, Petaluma, California, USA., Syphard AD; Department of Geography, San Diego State University, San Diego, California, USA.; Vertus Wildfire, San Diego, California, USA.; Conservation Biology Institute, La Mesa, California, USA., Mikesell J; Department of Civil, Construction, & Environmental Engineering, San Diego State University, San Diego, California, USA., Kinoshita AM; Department of Civil, Construction, & Environmental Engineering, San Diego State University, San Diego, California, USA., West K; Department of Geography, San Diego State University, San Diego, California, USA., Stow D; Department of Geography, San Diego State University, San Diego, California, USA., Storey E; Department of Geography, San Diego State University, San Diego, California, USA., De Guzman ME; Department of Biology, San Diego State University, San Diego, California, USA.; Department of Environmental Science and Policy, University of California, Davis, Davis, California, USA., Foote D; Department of Biology, San Diego State University, San Diego, California, USA.; School of Public Affairs, San Diego State University, San Diego, California, USA., Warneke A; Climate Science Alliance, San Diego, California, USA., Pairis A; Climate Science Alliance, San Diego, California, USA., Ryan S; School of Public Affairs, San Diego State University, San Diego, California, USA., Flint LE; Water Resources Discipline, U.S. Geological Survey, Sacramento, California, USA., Flint AL; Water Resources Discipline, U.S. Geological Survey, Sacramento, California, USA., Lewison RL; Department of Biology, San Diego State University, San Diego, California, USA.; Institute for Ecological Monitoring and Management, San Diego State University, San Diego, California, USA.
Jazyk: angličtina
Zdroj: Conservation biology : the journal of the Society for Conservation Biology [Conserv Biol] 2022 Feb; Vol. 36 (1), pp. e13834. Date of Electronic Publication: 2021 Oct 26.
DOI: 10.1111/cobi.13834
Abstrakt: From a conservation perspective, quantifying potential refugial capacity has been predominantly focused on climate refugia, which is critical for maintaining the persistence of species and ecosystems. However, protection from other stressors, such as human-induced changes in fire and hydrology, that cause habitat loss, degradation, and fragmentation is also necessary to ensure that conservation efforts focused on climate are not undermined by other threats. Thus, conceptual and methodological advances for quantifying potential refugia from multiple anthropogenic stressors are important to support conservation efforts. We devised a new conceptual approach, the domains of refugia, for assessing refugial capacity that identifies areas where exposure to multiple stressors is low. In our framework, patterns of environmental variability (e.g., increased frequency of warm summers), thresholds of resilience, and extent and intensity of stressors are used to identify areas of potential refugia from a suite of ongoing anthropogenic stressors (e.g., changes in fire regime). To demonstrate its utility, we applied the framework to a Southern California landscape. Sites with high refugial capacity (super-refugia sites) had on average 30% fewer extremely warm summers, 20% fewer fire events, 10% less exposure to altered river channels and riparian areas, and 50% fewer recreational trails than the surrounding landscape. Our results suggest that super-refugia sites (∼8200 km 2 ) for some natural communities are underrepresented in the existing protected area network, a finding that can inform efforts to expand protected areas. Our case study highlights how considering exposure to multiple stressors can inform planning and practice to conserve biodiversity in a changing world.
(© 2021 The Authors. Conservation Biology published by Wiley Periodicals LLC on behalf of Society for Conservation Biology.)
Databáze: MEDLINE
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