Filters: Tags: 2009 (X)
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As glaciers melt from climate change, their contents – namely, large quantities of freshwater, sediment, and nutrients – are slowly released into coastal ecosystems. This project addressed the impacts of melting glaciers on coastal ecosystems in the Copper River region of the Gulf of Alaska, which is home to several commercially important fisheries. Researchers examined how glacial melting is altering the amount and timing of freshwater that enters the Gulf of Alaska from the Copper River. They also investigated the source and amount of two nutrients, iron and nitrate, dissolved in the water. As a complementary piece of the study, researchers tested the relationship between nutrient levels, plankton populations,...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Completed,
Glaciers and Permafrost,
Glaciers and Permafrost,
2010 USDA Forest Service, Rocky Mountain Region Aerial Detection Survey Data. This data depicts the occurrence and location of forest insect, disease, and other biotic and abiotic causes of tree mortality and tree damage. Aerial survey data is collected by observing areas of tree damage or tree mortality from an aircraft and manually recording the information onto a map. Due to the nature of aerial surveys, this data will only provide rough estimates of location, intensity and the resulting trend information for agents detectable from the air. Many of the most destructive diseases are not represented in the data because these agents are not detectable from aerial surveys. The data presented should only be used as...
Our study addresses the general question of the degree to which wildlife species can adapt to, or possibly even modify, effects from climate change. We focused on five species of mammals in the alpine zone of the Sierra Nevada mountain range, including the federally endangered Sierra Nevada bighorn sheep and the American pika, a species recently proposed for listing due to the loss of populations from altered climatic conditions. It was expected that there will be an upward expansion of trees and shrubs from lower elevations and that many or even most alpine meadows will be converted to woody dominated communities. Meadows provide critical habitat for many alpine mammal species, and their conversion could represent...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Completed,
Mammals,
Mammals,
The overall goal of the Midwestern regional-scale assessment was to identify river reaches in the Glacial Lakes Partnership regions (focusing on Michigan, Minnesota, and Wisconsin) that are most vulnerable to potential impacts of projected climate and land use changes. Because fish assemblages are strongly influenced by river water temperature and flow regimes, which are in turn affected by climate and land-use conditions, we will attempt to model fish habitat response to climate and land use changes through changes in temperature and flow. This project intended to: (1) develop three models that predict daily summer temperature for all river reaches in each state; (2) develop a single model to predict non-winter...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Completed,
Fish,
Fish,
The southeastern U.S. contains highly diverse ecosystems that are increasingly threatened by human-induced environmental changes and that require increasingly intensive management to avoid negative impacts on native biota. Climate change is one aspect of landscape alteration that is particularly challenging to conservation planners and managers. Previous conservation planning efforts identified and prioritized areas for conservation based on current environmental conditions, such as habitat quality, and assumed that conditions in conservation lands would be largely controlled by management actions (including no action). Climate change, however, will likely alter important system drivers (e.g., temperature, precipitation,...
Modeling the Response of Freshwater Mussels to Changes in Water Temperature, Habitat, and Streamflow
North American freshwater mussels are in serious decline as a result of pollution and habitat destruction from human activities. In addition, many mussel species are living in habitats that push the upper limits of their heat tolerance, which may become problematic as the climate and, as a result, water temperatures warm. As part of this project, we created a set of models to predict how freshwater mussels would respond to climate change effects. Our primary objective was to help federal and state natural resource managers forecast how mussel species will respond to climate change over the next 30 to 50 years, so that managers can develop appropriate adaptation strategies to address these changes. Additionally,...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Central United States,
Completed,
National CASC,
One goal of the National Scale Assessment included identifying regions and associated river reaches across the United States that are most vulnerable to projected climate and land use changes. As an initial attempt to characterize river system vulnerability, we followed the definition posed by Kasperson et al. (2006) that incorporates exposure of systems to stresses like climate and land use changes, sensitivity of systems to those changes, and system resilience. This project intended to provide (1) a framework of stream classification to assess vulnerability of fish habitat under future climate change, (2) a framework of stream classification to assess vulnerability of fish habitat with projected urban and agriculture...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Completed,
National CASC,
National CASC,
Conservation and natural resource managers require information about potential future climate changes for the areas they manage, in terms that are relevant for the specific biotic and environmental resources likely to be affected by climate change. We produced a suite of data sets that provide managers with climate and climate-derived data and a visualization approach that allows managers to map where 1) a managed area's potential future climate is located on today's landscape (i.e., the locations of the modern analogues of future climate) and 2) the areas to which the present climate (and habitat) of managed areas are projected to move. We produced downscaled climate data from historical (1901-2000) data sets and...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Completed,
Data Visualization & Tools,
Data Visualization & Tools,
Florida is home to 50 endangered species, 23 National Wildlife Refuges, 9 national parks, and 119 state parks. Straddling both temperate and sub-tropical zones, the state is also unique in that it is a long and narrow peninsula, surrounded on three sides by warm water, creating a dynamic environment. The impacts of climate change, such as sea-level rise and severe storms, threaten the state’s unique biodiversity—yet managers are unsure how species will respond to these changes, which makes planning for the future difficult. In order to identify the impacts of climate change on Florida’s plants and wildlife, researchers developed regional climate scenarios identifying how temperature and precipitation patterns...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Climate change,
Completed,
La Florida,
If current climate change trends continue, rising sea levels could inundate low-lying islands across the globe. The Northwestern Hawaiian Islands (NWHI) is a group of islands of great conservation importance that is threatened by sea-level rise. Stretching 2,000 km beyond the main Hawaiian Islands, the NWHI are a World Heritage Site and part of the Papahānaumokuākea Marine National Monument. The islands support the largest tropical seabird rookery in the world, providing breeding habitat for 21 species of seabirds, 4 land bird species, and essential habitat for other resident and migratory wildlife. Because these are low-lying islands, even small increases in sea-level could result in the loss of critical habitat,...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
Baby Brooks Bank,
Bank 66,
Birds,
Birds,
This project produced long simulations (multi-decadal to multi-century in scale) of past, present, and future regional climate at a grid spacing of 50 kilometers (km) over North America and at a grid spacing of 15 km over western and eastern North America. These model runs were the first attempt to achieve coordinated, high-resolution downscaling with such wide geographic and temporal coverage. The objectives of this project were to (1) understand the nature of climate change and variability, (2) quantify the climate-driven responses and feedbacks of terrestrial and aquatic ecosystems, wildfire, the hydrologic cycle, and alpine glaciers, and (3) provide climate information in a form that is useful to a wide range...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2009,
CASC,
Completed,
Data Visualization & Tools,
Data Visualization & Tools,
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