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Explore climate change impacts on vegetation across the Desert and Southern Rockies LCCs using historical monitoring data collected from 23 sites across the Sonoran, Chihuahuan, Mojave and Colorado Plateau deserts for 30-50 years. This data will then be combined with ecosystem water balance model simulations to establish features of water availability critical for plant species response. Results will allow managers to identify species and communities at risk under future climate scenarios based on predicted changes in plant water availability. Due to the high variability in soils, incorporating a detailed understanding of soil water availability beyond bioclimatic envelope approaches in the desert Southwest is essential...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, AZ-02, AZ-03, AZ-04, Academics & scientific researchers, All tags...
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In the desert Southwest, changes in species composition, abundance, and distribution that may occur with climate change have significant implications for management of natural resources. These changes include: the extirpation or introduction of species, losses of biodiversity, shifts in structure and function of ecosystems and the services they provide, changes in wildlife habitat, invasion of non-native species, and changes in fire regimes. For planning, mitigation, and adaption, land managers would be greatly aided by knowing, in advance, which plant species, functional types, and assemblages will change in response to climate change so that monitoring and mitigation measures can focus on those resources. FY2012In...
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​Abstract: Climate change predictions include warming and drying trends, which are expected to be particularly pronounced in the southwestern United States. In this region, grassland dynamics are tightly linked to available moisture, yet it has proven difficult to resolve what aspects of climate drive vegetation change. In part, this is because it is unclear how heterogeneity in soils affects plant responses to climate. Here, we combine climate and soil properties with a mechanistic soil water model to explain temporal fluctuations in perennial grass cover, quantify where and the degree to which incorporating soil water dynamics enhances our ability to understand temporal patterns, and explore the potential consequences...
Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, AZ-02, AZ-03, AZ-04, Academics & scientific researchers, All tags...
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Warmer temperatures and less precipitation in the western U.S. related to climate change are harming many important natural resources, including forests, rivers, and many fish and wildlife species. Climate refugia provide a potential opportunity for conserving resources and biodiversity in the face of climate change. These refugia are places where the climate will likely change less than the surrounding landscape and/or places in a landscape where species may move to find more suitable climates. For example, because climate change may alter the frequency, duration, or severity of droughts, small habitats that naturally retain water (drought refugia) may become increasingly important to many natural wildlife communities....
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This dataset is part of a multi-scale assessment and classification for segments of 15 rivers of the Upper Midwest United States that meet various criteria for largeness. All rivers are tributary to the Mississippi River system. The 11,600 kilometers (km) that qualified as large were parsed into 10-kilometer-long segments and classified by major alterations (free-flowing, navigation pools, storage reservoir). The dataset also includes a statistically based, component classification based on the 10-km segments. Cluster analysis of hydrologic variables from 66 streamflow gaging stations yielded 5 clusters calculated from 5 ecohydrological metrics related to lateral connectivity with the floodplain. A separate cluster...
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Climate change predictions include warming and drying trends, which are expected to be particularly pronounced in the southwestern United States. In this region, grassland dynamics are tightly linked to available moisture, yet it has proven difficult to resolve what aspects of climate drive vegetation change.Here, we combine climate and soil properties with a mechanistic soil water model to explain temporal fluctuations in perennial grass cover, quantify where and the degree to which incorporating soil water dynamics enhances our ability to understand temporal patterns, and explore the potential consequences of climate change by assessing future trajectories of important climate and soil water variables.Our analyses...
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Changing climate conditions (e.g. changes to air temperature, surface temperature, snowpack duration, and soil temperature) are affecting where trees are able to successfully grow and are bringing changes to the structure of forests throughout many parts of Alaska. In order to understand and project future vegetation changes, scientists use computer models to establish the relationships between climate variables, such as those mentioned above, and ecological responses such as the presence or absence of a tree species, tree growth and establishment, changes in sap flow, and other demographic and physiological responses. These computer models, however, frequently do not account for Alaska’s extreme topography and...


    map background search result map search result map The Impact of Ecosystem Water Balance on Desert Vegetation: Quantification of Historical Patterns and Projection Under Climate Change (Not listed in the LCC Science Catalog due to Desert LCC co-funding and catalog administering) Impact of Ecosystem Water Balance on Desert Vegetation: Quantification of Historical Patterns and Projection under Climate Change Identifying and Evaluating Refugia from Drought and Climate Change in the Pacific Northwest Observing and Understanding the Impacts of Climate on Alaskan Forests Publication and Report: Ecosystem Water Balance in a Desert Grassland Webinar: Grassland Vulnerability to Climate Change in Southwest Deserts Segment-scale classification, large rivers of the Upper Midwest United States The Impact of Ecosystem Water Balance on Desert Vegetation: Quantification of Historical Patterns and Projection Under Climate Change (Not listed in the LCC Science Catalog due to Desert LCC co-funding and catalog administering) Identifying and Evaluating Refugia from Drought and Climate Change in the Pacific Northwest Impact of Ecosystem Water Balance on Desert Vegetation: Quantification of Historical Patterns and Projection under Climate Change Publication and Report: Ecosystem Water Balance in a Desert Grassland Webinar: Grassland Vulnerability to Climate Change in Southwest Deserts Segment-scale classification, large rivers of the Upper Midwest United States Observing and Understanding the Impacts of Climate on Alaskan Forests