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3 February 2025 Climate Change Vulnerabilities and Adaptation Strategies for Land Managers on Northwest US Rangelands
Anna T. Maher, Holly R. Prendeville, Jessica E. Halofsky, Mary M. Rowland, Kirk W. Davies, Chad S. Boyd
Author Affiliations +
Abstract

Rangelands around the globe are experiencing management challenges associated with existing and emerging stressors, including more frequent and severe fires, woody species expansion, annual grass invasion, heavy, repeated growing season grazing, and climate change. Disturbance is an essential part of rangeland systems. Yet climate change is likely to affect rangelands most directly by increasing the likelihood, severity, and extent of long term, negative impacts from disturbance. We conducted a synthesis of key vulnerabilities to climate change for Northwest US rangelands. These rangelands are projected to become warmer and drier this century, with episodes of more extreme droughts and higher likelihood of more severe fires affecting larger areas. Many of the vulnerabilities identified in our synthesis, such as increased frequency of fire and invasive grass proliferation, can have lasting effects, leading to “undesirable transformations” (substantial and persistent changes in vegetation composition and reductions in ecosystem services). For example, larger, more severe fires have led to the rapid loss of critical Greater sage-grouse habitat and diminished forage production capacity for livestock in some areas, lowering provisioning of ecosystem services, increasing fire management costs, and impacting rural livelihoods. Rangeland managers need guidance connecting climate change projections to on-the-ground management actions. We conclude from our synthesis of climate change vulnerabilities that supporting rangeland recovery is an important climate adaptation approach on Northwest rangelands. Proactive climate adaptation strategies (e.g., supporting soil health and vegetation) and example practices (e.g., establishing climate-adapted perennial plant species) are presented according to key action areas: prepare for, respond to, and recover from disturbance. Identifying specific adaptation needs at more local scales, like the management unit level, may be further refined through proactive planning and experimentation in collaborative settings that allow for resource pooling and foster learning.

Anna T. Maher, Holly R. Prendeville, Jessica E. Halofsky, Mary M. Rowland, Kirk W. Davies, and Chad S. Boyd "Climate Change Vulnerabilities and Adaptation Strategies for Land Managers on Northwest US Rangelands," Rangeland Ecology and Management 98(1), 399-413, (3 February 2025). https://doi.org/10.1016/j.rama.2024.04.012
Received: 15 March 2023; Accepted: 29 April 2024; Published: 3 February 2025
KEYWORDS
Adaptation
climate change
Natural resource management
Northwest
rangeland
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