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Cheatgrass (Bromus tectorum) has increased the extent and frequency of fire and negatively affected native plant and animal species across the Intermountain West (USA). However, the strengths of association between cheatgrass occurrence or abundance and fire, livestock grazing, and precipitation are not well understood. We used 14 years of data from 417 sites across 10,000 km(2) in the central Great Basin to assess the effects of the foregoing predictors on cheatgrass occurrence and prevalence (i.e., given occurrence, the proportion of measurements in which the species was detected). We implemented hierarchical Bayesian models and considered covariates for which > 0.90 or < 0.10 of the posterior predictive mass...
Categories: Publication;
Types: Citation;
Tags: Birds,
Drought, Fire and Extreme Weather,
Fire,
Grasslands and Plains,
Landscapes,
We aimed to improve the scientific capacity to estimate climate extremes, evaluate their effects on natural resources, and enhance a platform for derivation of and access to customized climate information for the full extent of the Southwest. Extreme climate can have substantial effects on species, ecological and evolutionary processes, and the health of visitors to public lands. Researchers generally can specify the climate-extreme metrics, and the extents and resolutions of those metrics, most relevant to their scientific objectives and the practical applications of their work. However, such application-specific data rarely are available. We screened global climate models (GCMs) on the basis of their realism...
Categories: Publication;
Types: Citation;
Tags: Drought,
Drought, Fire and Extreme Weather,
Extreme Weather,
Southwest CASC
Categories: Publication;
Types: Citation
The Native Nations Climate Adaptation Program (NNCAP) was founded in 2015 with the mission to build capacity to work collaboratively with Native American tribes and indigenous populations in the western United States and Mexico. NNCAP received funds from the DOI Southwest Climate Science Center to carry out a “Tribal Adaptation Initiative.” One of the objectives of this initiative was to conduct a preliminary assessment of tribal interest and capacity for adaptation across the Southwest. Twenty-six Native Nations participated in the NNCAP tribal climate change assessment and reported a wide array of involvement in climate change initiatives. This report highlights various strengths and capacity needs for climate...
Categories: Publication;
Types: Citation
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