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Native grasslands have been altered to a greater extent than any other biome in North America. The habitats and resources needed to support breeding performance of grassland birds endemic to prairie ecosystems are currently threatened by land management practices and impending climate change. Climate models for the Great Plains prairie region predict a future of hotter and drier summers with strong multiyear droughts and more frequent and severe precipitation events. We examined how fluctuations in weather conditions in eastern Colorado influenced nest survival of an avian species that has experienced recent population declines, the Mountain Plover (Charadrius montanus). Nest survival averaged 27.2% over a 7-yr...
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Drought events have cost the U.S. nearly $245 billion since 1980, with costs ranging from $2 to $44 billion in any given year. However, these socio-economic losses are not the only impacts of drought. Ecosystems, fish, wildlife, and plants also suffer, and these types of drought impacts are becoming more commonplace. Further, ecosystems that recover from drought are now doing so under different climate conditions than they have experienced in the past few centuries. As temperature and precipitation patterns change, “transformational drought”, or drought events that can permanently and irreversibly alter ecosystems – such as forests converting to grasslands – are a growing threat. This type of drought has cascading...
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Drought is a complex environmental hazard that impacts both ecological and social systems. Accounting for the role of human attitudes, institutions, and societal values in drought planning is important to help identify how various drought durations and severity may differentially affect social resilience to adequately respond to and manage drought impacts. While there have been successful past efforts to understand how individuals, communities, institutions, and agencies plan for and respond to drought, these studies have relied on extensive multi-year case studies in specific locations. In contrast, this project seeks to determine how social science insights and methods can best contribute to ecological drought...
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This shapefile represents the spatial distribution of mean annual groundwater recharge, in inches, for the Island of Hawaiʻi, Hawaiʻi for a set of drought and land-cover conditions represented in six water-budget scenarios. The six scenarios include: (1) historical drought rainfall and 2020 land cover, (2) future drought rainfall and 2020 land cover, (3) historical drought rainfall and Conversion 1 land cover, (4) future drought rainfall and Conversion 1 land cover, (5) historical drought rainfall and Conversion 2 land cover, and (6) future drought rainfall and Conversion 2 land cover. Historical drought rainfall is monthly rainfall during 2007–12 from Frazier and others (2016), whereas future drought rainfall is...
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This shapefile represents the spatial distribution of mean annual groundwater recharge, in inches, for Maui, Hawaiʻi for a set of drought and land-cover conditions represented in six water-budget scenarios. The six scenarios include: (1) historical drought rainfall and 2020 land cover, (2) future drought rainfall and 2020 land cover, (3) historical drought rainfall and Conversion 1 land cover, (4) future drought rainfall and Conversion 1 land cover, (5) historical drought rainfall and Conversion 2 land cover, and (6) future drought rainfall and Conversion 2 land cover. Historical drought rainfall is monthly rainfall during 2007–12 from Frazier and others (2016), whereas future drought rainfall is monthly rainfall...
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In the North Central U.S., drought is a dominant driver of ecological, economic, and social stress. Drought conditions have occurred in the region due to lower precipitation, extended periods of high temperatures and evaporative demand, or a combination of these factors. This project will continue ongoing efforts to identify and address climate science challenges related to drought, climate extremes, and the water cycle that are important for natural resource managers and scientists in the North Central region, to support adaptation planning. To accomplish this goal, researchers sought to (1) provide data and synthesis on drought processes in the region and on how evaporative stress on ecosystems will change during...
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This shapefile represents the spatial distribution of mean annual groundwater recharge, in inches, for Oʻahu, Hawaiʻi for a set of drought and land-cover conditions represented in six water-budget scenarios. The six scenarios include: (1) historical drought rainfall and 2020 land cover, (2) future drought rainfall and 2020 land cover, (3) historical drought rainfall and Conversion 1 land cover, (4) future drought rainfall and Conversion 1 land cover, (5) historical drought rainfall and Conversion 2 land cover, and (6) future drought rainfall and Conversion 2 land cover. Historical drought rainfall is monthly rainfall during 1998–2002 from Frazier and others (2016), whereas future drought rainfall is monthly rainfall...
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Preparing for and responding to drought requires integrating scientific information into complex decision making processes. In recognition of this challenge, regional drought early warning systems (DEWS) and related drought-information tools have been developed under the National Integrated Drought Information System (NIDIS). Despite the existence of many tools and information sources, however, the factors that influence if a tool(s) is (are) used, which tools are used, and how much benefit those tools provide remain poorly understood. Using the Upper Colorado River DEWS as a case study, this study investigated how water, land, and fire managers select from among many available tools. The Upper Colorado River Basin...
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This shapefile represents the spatial distribution of mean annual groundwater recharge, in inches, for Molokaʻi, Hawaii for two water-budget scenarios. The two scenarios include: (1) historical drought rainfall and 2020 land cover, and (2) future drought rainfall and 2020 land cover. Historical drought rainfall is monthly rainfall during 1998–2002 from Frazier and others (2016), whereas future drought rainfall is monthly rainfall during 1998–2002 rainfall adjusted for a Representative Concentration Pathway 8.5 2071-99 (RCP8.5 2071–99) projection from Elison Timm and others (2015). Monthly rainfall for each scenario was disaggregated into daily values using daily rainfall during 1998–2002 from Longman and others...
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This shapefile represents the spatial distribution of mean annual groundwater recharge, in inches, for Kauaʻi, Hawaiʻi for two water-budget scenarios. The two scenarios include: (1) historical drought rainfall and 2020 land cover, and (2) future drought rainfall and 2020 land cover. Historical drought rainfall is monthly rainfall during 1998–2002 from Frazier and others (2016), whereas future drought rainfall is monthly rainfall during 1998–2002 rainfall adjusted for a Representative Concentration Pathway 8.5 2071-99 (RCP8.5 2071–99) projection from Elison Timm and others (2015). Monthly rainfall for each scenario was disaggregated into daily values using daily rainfall during 1998–2002 from Longman and others (2019)....
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This shapefile represents the frequency characteristics of soil moisture, evapotranspiration, and climatic water deficit for Kauaʻi, Hawaiʻi for four water-budget scenarios. The four scenarios include (1) historical non-drought rainfall and 2020 land cover, (2) historical drought rainfall and 2020 land cover, (3) future non-drought rainfall and 2020 land cover, and (4) future drought rainfall and 2020 land cover. Historical non-drought rainfall is monthly rainfall during 1990–97 and 2003–06 from Frazier and others (2016). Historical drought rainfall is monthly rainfall during 1998–2002 and 2007–12 from Frazier and others (2016). Future non-drought rainfall is monthly rainfall during 1990–97 and 2003–06 from Frazier...
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Drought and wildfire pose enormous threats to the integrity of natural resources that land managers are charged with protecting. Recent observations and modeling forecasts indicate that these stressors will likely produce catastrophic ecosystem transformations, or abrupt changes in the condition of plants, wildlife, and their habitats, in regions across the country in coming decades. In this project, researchers will bring together land managers who have experienced various degrees of ecosystem transformation (from not yet experiencing any changes to seeing large changes across the lands they manage) to share their perspectives on how to mitigate large-scale changes in land condition. The team will conduct surveys...
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Documented in this data release are data used to model and map the probability of arsenic being greater than 10 micrograms per liter in private domestic wells throughout the conterminous United States during drought conditions (Lombard and others, 2020). The model used to predict the probability of arsenic exceeding 10 micrograms per liter in private domestic wells was previously developed and documented by Ayotte and others (2017). Independent variables in the model include groundwater recharge and annual precipitation. In order to assess the impact of drought these variables were altered to simulate drought by reducing the 30-year average annual values by 25 and 50 percent. The impact of drought was also assessed...
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Forests are of tremendous ecological and economic importance. They provide natural places for recreation, clean drinking water, and important habitats for fish and wildlife. However, the warmer temperatures and harsher droughts in the west that are related to climate change are causing die-offs of many trees. Outbreaks of insects, like the mountain pine beetle, that kill trees are also more likely in warmer, drier conditions. To maintain healthy and functioning forest ecosystems, one action forest managers can take is to make management decisions that will help forests adapt to future climate change. However, adaptation is a process based on genetic change and few tools are currently available for managers to use...
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This data release includes data-processing scripts, data products, and associated metadata for a remote-sensing based approach to characterize vegetation sensitivity to droughts from 2000 through 2016 in the U.S. states of Washington, Oregon, and Idaho. Drought sensitivity analysis was conducted in minimally-disturbed (‘intact’) forest and shrub-steppe ecosystems, defined as 1-km pixels (i.e., grid cells) that had not experienced major recent insect mortality or fire. Drought conditions were assessed using the multi-scalar standardized precipitation evapotranspiration index (SPEI), for which positive values indicate wetter that average conditions and negative values indicate drier than average conditions for a given...
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This shapefile represents the frequency characteristics of soil moisture, evapotranspiration, and climatic water deficit for Molokaʻi, Hawaiʻi for four water-budget scenarios. The four scenarios include (1) historical non-drought rainfall and 2020 land cover, (2) historical drought rainfall and 2020 land cover, (3) future non-drought rainfall and 2020 land cover, and (4) future drought rainfall and 2020 land cover. Historical non-drought rainfall is monthly rainfall during 1990–97 and 2003–06 from Frazier and others (2016). Historical drought rainfall is monthly rainfall during 1998–2002 and 2007–12 from Frazier and others (2016). Future non-drought rainfall is monthly rainfall during 1990–97 and 2003–06 from Frazier...
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Hydrologic drought and declining water availability are among the foremost stressors of stream ecosystems in the Red River basin. Resource managers face the challenge of apportioning scarce water resources among competing uses, but they lack a systematic framework for comparing the costs and benefits of proposed water management decisions and conservation actions. In 2016, Co-PIs Neeson and Moreno were funded by the Great Plains LCC to develop a decision support model for identifying the most cost-effective water conservation alternatives across the Red River basin. Here, we propose to extend this optimization model in three significant ways to support cost-effective conservation decisions in the face of climate...
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Unprecedented rates of climate warming over the past century have resulted in increased forest stress and mortality worldwide. Decreased tree growth in association with increasing temperatures is generally accepted as a signal of temperature-induced drought stress. However, variations in tree growth alone do not reveal the physiological mechanisms behind recent changes in tree growth. Examining stable carbon isotope composition of tree rings in addition to tree growth can provide a secondary line of evidence for physiological drought stress. In this study, we examined patterns of black spruce growth and carbon isotopic composition in tree rings in response to climate warming and drying in the boreal forest of interior...
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Land and water managers often rely on hydrological models to make informed management decisions. Understanding water availability in streams, rivers, and reservoirs during high demand periods that coincide with seasonal low flows can affect how water managers plan for its distribution for human consumption while sustaining aquatic ecosystems. Substantial advancement in hydrological modeling has occurred in the last several decades resulting in models that range widely in complexity and outputs. However, managers can still struggle to make informed decisions with these models for a variety of reasons, including misalignments between model outputs and the specific decision they are intended to inform, limitations...


map background search result map search result map Drought and Cooler Temperatures Are Associated with Higher Nest Survival in Mountain Plovers Stable carbon isotope analysis reveals widespread drought stress in boreal black spruce forests Impacts of drought on forest growth and regeneration following fire in southwestern Yukon, Canada Using Genetic Information to Understand Drought Tolerance and Bark Beetle Resistance in Whitebark Pine Forests Balancing Water Usage and Ecosystem Outcomes Under Drought and Climate Change: Enhancing an Optimization Model for the Red River Foundational Science Area: Ecological Drought, Climate Extremes, and the Water Cycle in the North Central U.S. How and Why Upper Colorado River Basin Land, Water, and Fire Managers Choose to Use Drought Tools Analysis of drought sensitivity in the Pacific Northwest (Washington, Oregon, and Idaho) from 2000 through 2016 Developing and Testing a Rapid Assessment Method for Understanding Key Social Factors of Ecological Drought Preparedness State of the Science Synthesis on Transformational Drought: Understanding Drought’s Potential to Transform Ecosystems Across the Country Datasets for assessing the impact of drought on arsenic exposure from private domestic wells in the conterminous United States Learning From the Past and Planning for the Future: Experience-Driven Insight Into Managing for Ecosystem Transformations Induced by Drought and Wildfire State of the Science in Streamflow Modeling in the North Central Region to Address Partner Needs for Water Availability Under Drought Conditions Mean annual groundwater recharge rates for Kauaʻi for historical and future drought conditions, and 2020 land cover Mean annual groundwater recharge rates for Oʻahu for historical and future drought conditions, and three land-cover conditions Mean annual groundwater recharge rates for Molokaʻi for historical and future drought conditions, and 2020 land cover Mean annual groundwater recharge rates for Maui for historical and future drought conditions, and three land-cover conditions Mean annual groundwater recharge rates for the Island of Hawaiʻi for historical and future drought conditions, and three land-cover conditions Frequency characteristics of soil moisture, evapotranspiration, and climatic water deficit for Kauaʻi for historical and future drought conditions, and 2020 land cover Frequency characteristics of soil moisture, evapotranspiration, and climatic water deficit for Molokaʻi for historical and future drought conditions, and 2020 land cover Using Genetic Information to Understand Drought Tolerance and Bark Beetle Resistance in Whitebark Pine Forests Mean annual groundwater recharge rates for Molokaʻi for historical and future drought conditions, and 2020 land cover Frequency characteristics of soil moisture, evapotranspiration, and climatic water deficit for Molokaʻi for historical and future drought conditions, and 2020 land cover Mean annual groundwater recharge rates for Kauaʻi for historical and future drought conditions, and 2020 land cover Frequency characteristics of soil moisture, evapotranspiration, and climatic water deficit for Kauaʻi for historical and future drought conditions, and 2020 land cover Mean annual groundwater recharge rates for Oʻahu for historical and future drought conditions, and three land-cover conditions Mean annual groundwater recharge rates for the Island of Hawaiʻi for historical and future drought conditions, and three land-cover conditions Impacts of drought on forest growth and regeneration following fire in southwestern Yukon, Canada How and Why Upper Colorado River Basin Land, Water, and Fire Managers Choose to Use Drought Tools Stable carbon isotope analysis reveals widespread drought stress in boreal black spruce forests State of the Science in Streamflow Modeling in the North Central Region to Address Partner Needs for Water Availability Under Drought Conditions Balancing Water Usage and Ecosystem Outcomes Under Drought and Climate Change: Enhancing an Optimization Model for the Red River Drought and Cooler Temperatures Are Associated with Higher Nest Survival in Mountain Plovers Learning From the Past and Planning for the Future: Experience-Driven Insight Into Managing for Ecosystem Transformations Induced by Drought and Wildfire Analysis of drought sensitivity in the Pacific Northwest (Washington, Oregon, and Idaho) from 2000 through 2016 Foundational Science Area: Ecological Drought, Climate Extremes, and the Water Cycle in the North Central U.S. Datasets for assessing the impact of drought on arsenic exposure from private domestic wells in the conterminous United States Developing and Testing a Rapid Assessment Method for Understanding Key Social Factors of Ecological Drought Preparedness State of the Science Synthesis on Transformational Drought: Understanding Drought’s Potential to Transform Ecosystems Across the Country