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Fire suppression is the primary management response to wildfires in many areas globally. By removing less-extreme wildfires, this approach ensures that remaining wildfires burn under more extreme conditions. Here, we term this the “suppression bias” and use a simulation model to highlight how this bias fundamentally impacts wildfire activity, independent of fuel accumulation and climate change. We illustrate how attempting to suppress all wildfires necessarily means that fires will burn with more severe and less diverse ecological impacts, with burned area increasing at faster rates than expected from fuel accumulation or climate change. Over a human lifespan, the modeled impacts of the suppression bias exceed those...
Categories: Publication;
Types: Citation
A new satellite-derived low cloud retrieval reveals rich spatial texture and coherent space-time propagation in summertime California coastal low cloudiness (CLC). Throughout the region, CLC is greatest during May–September but has considerable monthly variability within this summer season. On average, June is cloudiest along the coast of southern California and northern Baja, Mexico, while July is cloudiest along northern California's coast. Over the course of the summer, the core of peak CLC migrates northward along coastal California, reaching its northernmost extent in late July/early August, then recedes while weakening. The timing and movement of the CLC climatological structure is related to the summer evolution...
Categories: Publication;
Types: Citation;
Tags: Cloud Cover,
Coastal,
Drought,
Drought, Fire and Extreme Weather,
Extreme Weather,
This dataset contains information from 674 publications (academic and grey literature) that assessed the effects of climate variability and climate change on the 15 ungulate species that are native to the United States, Canada, Mexico, and Greenland. The publication contains literature published between 1947 and September 2020. Information documented includes study location, climate variables assessed, and ungulate outcomes measured (e.g., life history characteristics, population demographics, migratory behavior).
Categories: Data,
Publication;
Types: Citation;
Tags: Canada,
Greenland,
Mexico,
North America,
USGS Science Data Catalog (SDC),
Simulation models are valuable tools for estimating ecosystem response to environmental conditions and are particularly relevant for investigating climate change impacts. However, because of high computational requirements, models are often applied over a coarse grid of points or for representative locations. Spatial interpolation of model output can be necessary to guide decision-making, yet interpolation is not straightforward because the interpolated values must maintain the covariance structure among variables. We present methods for two key steps for utilizing limited simulations to generate detailed maps of multivariate and time series output. First, we present a method to select an optimal set of simulation...
Categories: Publication;
Types: Citation
The mission of the US Geological Survey’s National Climate Adaptation Science Center (NCASC) is to provide managers, policy-makers, and other stakeholders with information and decision-making tools to respond to effects of climate change on natural resources. In support of this goal, the NCASC has supported exceptional mentoring experiences for graduate students from select partner institutions in developing policy-relevant products related to managing climate change impacts on fish, wildlife, and/or ecosystems. For many graduate students conducting research on the impacts of climate change on natural resources, disseminating results of their research to managers, policy-makers, or other stakeholders is not required...
Categories: Publication;
Types: Citation
Across the Hawaiian Islands, effective management of at-risk species often relies on fine-scale actions by natural resource managers. However, balancing these actions with competing land use objectives concurrently can be challenging, especially in the context of a shifting climate. One example is the challenge of managing for hunting of non-native ungulates for subsistence and recreation, which often conflicts with the conservation of native species, and there is little reliable data to guide effective management. To address this issue, we modeled the habitat associations of axis deer and mouflon sheep on the Island of Lānaʻi. We found that both species occupy habitat different from their native environment, and...
Categories: Publication;
Types: Citation
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