Steven Forrest results 27
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The Toxicology Investigators Consortium 2024 Annual ReportNARA Subscribed
Childhood asthma exacerbation has multiple risk factors that occur concurrently in the environment — including extreme meteorological conditions, air pollution, aeroallergens, and respiratory virus infections. Few studies have predicted asthma exacerbation based on multiple time-varying environmental risk factors, together. In this study, we constructed an autoregressive integrated moving average (ARIMA) model to predict “high...
The Toxicology Investigators Consortium 2023 Annual ReportNARA Subscribed
Wildfire smoke impacts lake ecosystemsNARA Subscribed
Wildfire activity is increasing globally. The resulting smoke plumes can travel hundreds to thousands of kilometers, reflecting or scattering sunlight and depositing particles within ecosystems. Several key physical, chemical, and biological processes in lakes are controlled by factors affected by smoke. The spatial and temporal scales of lake exposure to smoke are extensive and under‐recognized. We introduce the concept of th...
Internal phosphorus loading alters nutrient limitation and contributes to cyanobacterial blooms in a polymictic lakeNARA Subscribed
Clear Lake, a medium-sized hypereutrophic, polymictic lake in northern California, has had recurring harmful cyanobacteria blooms (HCBs) for over a century despite reductions in external phosphorus (P) loadings. Internal P loading can alter nutrient availability and limitation supporting HCBs but is rarely quantified or compared with external loads. We have quantified external P loads from 2019 to 2021 for the three main tribu...
Use of a multi‐metric macroalgal index to document severe eutrophication in a New Zealand estuaryNARA Subscribed
Environmental indicators that reliably describe estuary trophic response to nutrient loading are required for the effective management of New Zealand estuaries. A common estuary eutrophication response is frequent, extensive and persistent opportunistic macroalgae blooms. This study explores the utility of the Opportunistic Macroalgal Blooming Tool (OMBT) in the New River Estuary (∼4600 ha), a shallow intertidal‐dominated syst...
Wildlife impacts and vulnerable livelihoods in a transfrontier conservation landscapeNARA Subscribed
Interactions between humans and wildlife resulting in negative impacts are among the most pressing conservation challenges globally. In regions of smallholder livestock and crop production, interactions with wildlife can compromise human well‐being and motivate negative sentiment and retaliation toward wildlife, undermining conservation goals. Although impacts may be unavoidable when human and wildlife land use overlap, scant...
Potential impact of large ungulate grazers on A frican vegetation, carbon storage and fire regimesNARA Subscribed
Aim Large ungulate grazers have been a fundamental component of A frican savannas since the spread of the savanna ecosystem in the M iocene. The magnitude of the impact of ungulates on vegetation has been debated for a long time, but quantifying such effects at the continental scale has been difficult. This study presents an attempt to estimate for the first time the potential impact of large natural ungulate grazer herds on A...
Scaling categorical spatial data for earth systems modelsNARA Subscribed
Systematic assessment of terrestrial biogeochemistry in coupled climate–carbon modelsNARA Subscribed
With representation of the global carbon cycle becoming increasingly complex in climate models, it is important to develop ways to quantitatively evaluate model performance against in situ and remote sensing observations. Here we present a systematic framework, the Carbon‐LAnd Model Intercomparison Project (C‐LAMP), for assessing terrestrial biogeochemistry models coupled to climate models using observations that span a wide r...