Filters: Types: ArcGIS REST Map Service (X) > partyWithName: The Nature Conservancy (X) > Categories: Data (X)

Filters Date Range Past year (5) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (16) Citation (5) Budget (1) Project (1) Shapefile (1) Types ArcGIS Service Definition (16) Downloadable (16) Map Service (16) Citation (8) OGC WFS Layer (2) More... Contacts North Atlantic Landscape Conservation Cooperative Southern Rockies Landscape Conservation Cooperative LCC Network Data Steward Appalachian Landscape Conservation Cooperative U.S. Geological Survey More... Categories Publication (5) Project (1) Tag Types Theme (12) LCC End User Type (2) Harvest Set (6) unknown (1) Southern Rockies LCC Keywords (1) ISO 19115 Topic Categories (5) Subject (1) More... Tag Schemes None (10) ISO 19115 Topic Categories (10) https://www.sciencebase.gov/vocab/vocabulary/54760ef9e4b0f62cb5dc41a0 (2) URL of thesaurus? (1) User (1) https://www.sciencebase.gov/vocab/vocabulary/52dee7c5e4b0dee2a6cd6b18 (1) https://www.sciencebase.gov/vocab/vocabulary/5307baa3e4b0dcc7bdc913a9 (2) More... View Results as: JSON ATOM CSV

Freshwater Ecoregions, Northeast NOTE: This download link includes Fish Regions, Freshwater Ecoregions, and Freshwater Resilience. Freshwater ecoregions provide a global biogeographic regionalization of the Earth's freshwater biodiversity. These units are distinguished by patterns of native fish distribution resulting from large-scale geoclimatic processes and evolutionary history. The freshwater ecoregion boundaries generally, though not always, correspond with those of watersheds. Within individual ecoregions there will be turnover of species, such as when moving up or down a river system, but taken as a whole an ecoregion will typically have a distinct evolutionary history and/or suite of ecological processes (Abell et al. 2008). The WWF defined... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: ME, VT, NH, MA, CT, RI, NY, PA, NJ, MD, DE, VA, WV, biota, ecoregions, biogeography, freshwater ecoregions, environment, inlandWaters Autumn migratory landbird stopover density radars, Northeast U.S. This dataset contains measures of seasonal mean bird stopover densities and in seasonal mean bird density based on weather surveillance radar data from 20 radar locations in the Northeast U.S. across seven autumn migrations (15 August through 7 November of 2008-2014) [six autumn migrations for the terminal doppler weather radar (15 August through 7 November of 2009-2014)]. Data are present only in radar-sampled areas for each individual radar (see below for description on how these data are filtered). If you are interested in a continuous map of bird stopover densities for the entire region (and outside of these radar coverage areas), refer to layer “Predicted autumn migratory landbird density, 1km, Northeast U.S.”.The... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Data, LCC Network Science Catalog, North Atlantic Landscape Conservation Cooperative Data.gov, biota, birds, All tags... completed, ecosystems, environment, environment, landscape ecology, migratory routes, rates, terrestrial, Fewer tags Utah-Wyoming Rocky Mountain Ecoregion Core Areas and Linkages The UWRM proposal represents the uplands wildlands network in the Heart of the West Proposal. Utah-Wyoming Rocky Mountains Ecoregion (UWRM) core areas and linkages shapefile. This GIS dataset provides core areas and linkages that includes all the components of a three track approach (special elements, representation, and focal species) used during the planning process. This is the result of a study contract by The Nature Conservancy to design an ecoregional plan for Northern Utah, Western Wyoming, Southeastern Idaho, Northwest Colorado and South-central Montana. The study was developed in 2001 by Reed Noss, George Wuerthner, Ken Vance-Borland, and Carlos Carroll from Conservation Science, Inc. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: biota, boundaries, conservation assessment, conservation plan, conservation planning, All tags... core, core areas, ecosystem, environment, landscape, landuse plan, linkage, planning cadastre, prioritization, regional conservation plan, utah, wildlands network, wildlife corridor, wyoming, Fewer tags Pacific Northwest Terrestrial Local Landscape Permeability These data are the final landscape permeability data as described in the report "Conserving Nature's Stage: Identifying Resilient Terrestrial Landscapes in the Pacfic Northwest."Permeability refers to the connectivity of a focal cell to its ecological neighborhood when it is viewed as a source; in other words, it asks the question: “to what extent are ecological flows outward from that cell impeded or facilitated by the surrounding landscape?” Thus,permeability starts with a focal cell and looks at the resistance to ecological flow outward in all directions through the local neighborhood. As resistance increases, flow is impeded or stopped altogether. Areas of no resistance allow the flow to proceed until a user-specified... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Ecologial Flows, Landscape Resilience, Pacific Northwest, Terrestrial Landscape Permeability, connectedness, All tags... connectivity, ecoregion, environment, landscape condition, permeability, Fewer tags Terrestrial Resilience, New York State This dataset represents a clipped version of the terrestrial resiliency index to the State of New York developed by Mark Anderson and associates at The Nature Conservancy (Anderson et al 2012), which is a measure of the relative long-term resiliency of a site based on connectivity to a diversity of landforms, elevations and wetlands. A value of 0.9 in a cell means that it has a resiliency score that is greater than 90% of all the cells of the same geophysical setting in that watershed, and all the cells with >0.9 values comprise the best 10% of all cells across all geophysical settings within the watershed. TNC's resiliency index, as scaled here, is a major component of the terrestrial core area selection index... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: NYS, New York State, Northeast US, Terrestrial Resilience, resilience, All tags... terrestrial, Fewer tags Landscape Resistance to Terrestrial Species Movement (90 m) The resistance surface is the basis for the landscape permeability analysis and has a great deal of influence on the final terrestrial landscape resilience scores. As such, great pains were taken to make this dataset as reflective of actual ground condition as possible. Each dataset used was evaluated at several locations, and multiple draft versions of the resistance surface were produced until reviewers were satisfied with the data.Each cell has been assigned a value, or weighting, representing it's hardness/ impermeability to species movement and ecological flows. Higher values are more difficult to cross, while lower values are easier. Natural lands are assigned a value of 1, meaning the cost to move across... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Conversion, Ecological Flow, Land Use, Terrestrial Landscape Resistance, environment, All tags... geoscientificInformation, Fewer tags Anadromous Fish Index, CT River Watershed This dataset is a component of a complete package of products from the Connect the Connecticut project. Connect the Connecticut is a collaborative effort to identify shared priorities for conserving the Connecticut River Watershed for future generations, considering the value of fish and wildlife species and the natural ecosystems they inhabit. Click here to download the full data package, including all documentation. This dataset identifies large and medium rivers within the Connecticut River watershed that provide habitat for five anadromous fish species: American shad, blueback herring, shortnose sturgeon, alewife, and sea lamprey. Habitat includes the mainstem and major tributaries of the Connecticut River... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: CT, Connecticut, Data, LCC Network Science Catalog, North Atlantic Landscape Conservation Cooperative Data.gov, All tags... aquatic, completed, connect, design, environment, environment, fish, landscape, rivers, species, streams, Fewer tags Predicted autumn migratory landbird density, 1km, Northeast U.S. This dataset represents the observed and predicted relative bird density during autumn migratory stopover within the Northeast and Mid-Atlantic U.S. as measured by NEXRAD weather surveillance radar during the periods of peak landbird migration (15 August to 7 November) during 2008 through 2014. The dataset also includes measures of land cover characteristics, vegetative productivity, and geographic context used in the models to predict bird stopover use. Observed data are present only in radar-sampled areas (see below for description on how these data are filtered) while predicted data are modeled across the entire Northeast U.S. The dataset was originally developed as supplemental information for the cooperative... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: BIRDS, BIRDS, Data, LANDSCAPE ECOLOGY, LANDSCAPE ECOLOGY, All tags... LCC Network Science Catalog, MIGRATORY RATES/ROUTES, MIGRATORY RATES/ROUTES, North Atlantic Landscape Conservation Cooperative Data.gov, TERRESTRIAL ECOSYSTEMS, TERRESTRIAL ECOSYSTEMS, biota, biota, biota, completed, environment, environment, environment, Fewer tags Modeling Low Stream Flows and Assessing the Ecological Impacts of Potential Stream Drying under Climate Change in the Upper Colorado River Basin Streamflows in late spring and summer have declined over the last century in the western U.S. and mean annual streamflow is projected to decrease by six to 25% over the next 100 years. In arid and semi-arid regions of the western US, it is likely that some perennial streams will shift to intermittent flow regimes in response to climate-driven changes in timing and magnitude of precipitation, runoff, and evaporation. The project will address the following two research question: how will small stream (1st-3rd order) low flow hydrology be impacted by predicted longer, drier summers in the Upper Colorado River Basin under climate change and in turn, what will be the resulting impacts on riparian plant communities?... Categories: Data, Project; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AZ-01, Applications and Tools, Arizona, CO-03, Colorado, All tags... Colorado Plateau, Conservation NGOs, Conservation Planning, Decision Support, Federal resource managers, Four Corners, GIS, GIS, Green River Basin, LCC, LCC Network Science Catalog, NM-03, Native Fish, New Mexico, Project, SRLCC, SRLCC, SRLCC boundary, Southern Rocky Mountains, State agencies, Streamflows, UT-01, UT-02, UT-03, Upper Colorado River Basin, Upper Colorado River Basin, Upper Colorado River Basin, Upper Rio Grande, Utah, Vulnerability Assessment, WY-00, Wasatch and Uinta Mountains, Wyoming, climate change, climate change, completed, low flow hydrology, low flow hydrology, riparian, riparian, riparian vegetation, riparian vegetation, small streams, small streams, stream drying, stream drying, stream drying, stream flows, streamflows, streamflows, upper colorado river basin, Fewer tags Terrestrial Landscape Resilience to Climate Change (90 m) We have defined resilience as a function of both a site’s diversity of topoclimates and the site’s ability to support species movement, or terrestrial landscape permeability. Here, we posit that topoclimates provide species localized refugia from the direct effects of a changing climate, whereas landscape permeability reflects the ability of the landscape mosaic to facilitate terrestrial species movement to and between topoclimates as they shift in response to their respective climatic envelopes.90 m topoclimate data, scaled from 0.2 – 1, were multiplied with terrestrial landscape permeability data, scaled from 0 – 1, to generate a resilience value for every 90 m cell across the project area. A full description... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Ecologial Flows, Landscape Resilience, Pacific Northwest, Terrestrial Landscape Permeability, biota, All tags... connectedness, connectivity, ecoregion, environment, environment, landscape condition, permeability, permeability, resilience, terrestrial, topoclimate diversity, Fewer tags Resilience Stratified by Setting and Ecoregion with Regional Override, 2016, Eastern U.S. and Canada A climate-resilient conservation portfolio includes sites representative of all geophysical settings selected for their landscape diversity and local connectedness. We developed methods to identify such a portfolio. First, we mapped geophysical settings across the entire study area. Second, within each geophysical setting we located sites with diverse topography that were highly connected by natural cover. Third, we compared the identified sites with the current network of conservation lands and with The Nature Conservancy’s (TNC’s) portfolio of important biodiversity sites identified based on rare species and natural community locations. Using this information we noted geophysical settings that were underrepresented... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Eastern United States, Resilience, Resilient sites, climate change, climate resilience, All tags... elevation range, geophysical settings, landform variety, landscape diversity, sea level rise, terrestrial resilience, wetland density, Fewer tags Pennsylvania Watersheds with a Documented Bat Occurrence Forest cores are derived by applying an inverse buffer (-100m) to forest patches to represent the area of contiguous interior forest habitat. Forest patches are defined as areas of contiguous natural cover bound by non-natural edge or linear fragmenting features (roads, railroads, transmission lines, natural gas pipelines). The following land cover types were selected from the 2006 National Land Cover Database (NLCD) to define “natural cover”: deciduous forest, coniferous forest, mixed [deciduous-coniferous] forest, scrub-shrub, woody wetland, and emergent wetland. Forest patches were delineated based on non-forest edge (from the NLCD) and the following linear fragmenting features:electric transmission lines (from... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, Appalachian, Appalachian, Appalachians, All tags... Conservation NGOs, Data, Data, Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Hunters & anglers, Interested public, LCC, LCC, LCC, LCC Network Science Catalog, Pennsylvania, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Training/Outreach/Workshop, Tribes, bat, biota, biota, completed, completed, conservation, conservation, conservation, energy, energy development, forest, forest habitat, forest patches, inlandWaters, inlandWaters, interior forest, risk, watershed, watershed, watershed, Fewer tags Salinity, Northeast The presence of salt water is an important determinant of ecological communities. This dataset modifies the Northeast Terrestrial Habitat Map (linked below), developed by The Nature Conservancy, to denote the presence of salt water or brackish water as follows: -Wetlands and waters classified by the National Wetland Inventory (http://www.fws.gov/wetlands/) as "marine", plus additional ocean waters to a distance from the coast of 10 km, are considered salt water and assigned a value of "1" -Wetlands and waters classified by the National Wetland Inventory as "upper estuarine" are considered oligohaline and assigned a value of "0.5" -Wetlands and waters classified by the National Wetland Inventory as "estuarine" are... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Data, LCC Network Science Catalog, North Atlantic Landscape Conservation Cooperative Data.gov, Salinity, Salinity, All tags... completed, environment, environment, salt, salt, water, water, Fewer tags Regional Flow 2016, Chesapeake Bay, U.S. To create a wall-to-wall surface of landscape permeability we used the software CIRCUITSCAPE (McRae and Shah 2009), an innovative program that models species and population movements as if they were electric current flowing through a landscape of variable resistance. Circuit modeling is conceptually aligned with the concept of landscape permeability because it recognizes that movement through a landscape is affected by a variety of impediments, and it quantifies the degree and the directional outcomes of the compounding effects. One output is a “flow” map that shows the behavior of directional flows and highlights concentration areas and pinch-points. The results can highlight locally and regionally significant... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Blocked/Low Flow, Chesapeake Bay, Circuitscape, Concentrated flow, Constrained Flow, All tags... Diffuse Flow, Resilience, Resilient sites, dataset, eastern North America, regional flows, wall to wall, Fewer tags Geophysical Settings 1000 A Hexagons, Northern Appalachians/Acadians This dataset represents The Nature Conservancy's Terrestrial Resilience symbolized by Geophysical Settings (90m Resilience is also included in the download of this dataset). Resilience concerns the ability of a living system to adjust to climate change, to moderate potential damages, to take advantage of opportunities, or to cope with consequences; in short, its capacity to adapt. In this project we aim to identify the most resilient examples of key geophysical settings (e.g. sand plains, granite mountains, limestone valleys, etc.) to provide conservationists with a nuanced picture of the places where conservation is most likely to succeed over centuries. The project had three parts: 1) identifying and mapping... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Adaptive Capacity, Eastern Division, Elevation Range, Landform Variety, Landscape Complexity, All tags... Local Connectivity, Resilience, Settings, TNC, The Nature Conservancy, Wetland Density, final resilience score, hexagons, Fewer tags Fish Regions, Northeast Note: The download link includes Fish Regions, Freshwater Ecoregions, and Freshwater Resilience. Within each freshwater ecoregion, we defined one to four discrete fish regions using a cluster analysis of the USGS 8-digit Hydrologic Units (HUC) based on similarities in their native fish composition. The analysis was based on a previously developed list of native species present within each HUC (NatureServe, 2008). The cluster analysis defined up to four clusters within each freshwater ecoregion using similarity of composition (Linkage method: Flexible beta, Distance measure: Sorensen (Bray-Curtis), Flexible beta value of -0.250). To determine the faunal distinctiveness between clusters, we performed an indicator... Categories: Data, Publication; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: ME, NH, VT, MA, CT, RI, NY, PA, NJ, MD, DE, VA, WV, biota, environment, fish, biogeography, ecoregions, freshwater ecoregions, watersheds, inlandWaters