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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...
Publication from the NALCC co-funded project Identifying Important Migratory Landbird Stopover Sites in the Northeast. With many of the world’s migratory bird populations in alarming decline, broad‐scale assessments of responses to migratory hazards may prove crucial to successful conservation efforts. Most birds migrate at night through increasingly light‐polluted skies. Bright light sources can attract airborne migrants and lead to collisions with structures, but might also influence selection of migratory stopover habitat and thereby acquisition of food resources. We demonstrate, using multi‐year weather radar measurements of nocturnal migrants across the northeastern U.S., that autumnal migrant stopover density...
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Description: The upper Gila River in New Mexico is one of the few unobstructed rivers in the Colorado River Basin with largely intact native fish populations, including four federally listed and one state listed species.Freshwater systems throughout the West continue to be threatened by human encroachment and water development. Methodologies or decision support tools to evaluate resource management practices that foster an understanding of how fish species adapt to the effects of climate change are critical to future resource management planning.
A spatial dataset of lands and waters that The Nature Conservancy has a legal interest in (such as a conservation easement or fee-simple ownership). Includes spatial data from TNC's Conservation Lands System (CLS) database, which is the legal database of record for all TNC land transactions (fee, easement, lease and deed restrictions). Conservation Management Status (CMS) is a measure derived from the intent, duration and the effective management potential of spatial features of interest ("conservation situations") in the dataset. It is defined as a measure of the likelihood that an existing conservation situation is sufficient to secure biodiversity and allow for its persistence. For more information about the...
Publication from the NALCC co-funded project Identifying Important Migratory Landbird Stopover Sites in the Northeast.With many of the world’s migratory bird populations in alarming decline, broad‐scale assessments of responses to migratory hazards may prove crucial to successful conservation efforts. Most birds migrate at night through increasingly light‐polluted skies. Bright light sources can attract airborne migrants and lead to collisions with structures, but might also influence selection of migratory stopover habitat and thereby acquisition of food resources. We demonstrate, using multi‐year weather radar measurements of nocturnal migrants across the northeastern U.S., that autumnal migrant stopover density...
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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...
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These data consist of Level 2 field-verified and remotely-sensed (potential) vernal pool locations submitted to the Vernal Pool Data Cooperative (VPDC) by cooperators from Maine, Maryland, New Hampshire, New York, Nova Scotia, and Virginia. Data submitted to the VPDC were subject to any of three data restriction categories established by the original data source. The data restriction categories are: Level 1:Unrestricted– Available for visualization and download through the NALCC Conservation Planning Atlas; Level 2:Visualization only– Available for visualization in the Conservation Planning Atlas (http://nalcc.databasin.org/datasets/b46351fa598549e6a7c6073f490226ce); download requires permission from data source;...
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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...
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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...
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This dataset compiles land ownership and management data from state and federal agencies to create a map showing ownership, management, and conservation status of all land in Alaska. State, federal, and private lands, including Native corporations and Native allotments, are included. Conservation status describes the degree to which land, particularly public land, is legally designated and explicitly managed for biodiversity conservation. The most common classification, developed by the USGS GAP Program (www.gap.uidaho.edu), classifies land management types into four conservation status categories according to the degree to which the land is explicitly managed for conservation. In general, conservation status 1...
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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...
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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...
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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...
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This New Mexico Statewide Resources Assessment, Strategy and Response Plan intends to guide long-term Division management, but as importantly, to provide useful information to our many partners who work together to create and maintain sustainable forests and their many benefits. The Forestry Division's central purpose is to promote healthy, sustainable forests in New Mexico for the benefit of current and future generations. This mission is accomplished by working with partners interested in improving the health of the state’s forests and watersheds. This document helps the Division meet two directives: the New Mexico Forest and Watershed Health Plan, completed in 2004, identifying the need for an all resources...
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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...
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Dozens of species of landbirds, such as warblers, hummingbirds, and orioles, migrate through the Northeastern United States from their summer breeding grounds in the U.S. and Canada to their nonbreeding grounds as far south as South America. During the migration period, birds must find habitat where they can stop, rest and replenish their energy reserves. Conservation efforts are increasingly focused on identifying stopover sites that are important for sustaining migratory landbird populations. This project builds upon prior work by the University of Delaware and USGS to use weather surveillance data and field surveys to map and predict important migratory bird stopover sites.This project was co-funded by through...
    map background search result map search result map New Mexico Statewide Resources Assessment Fish Regions, Northeast Freshwater Ecoregions, Northeast The Nature Conservancy - Fee Title and Easements for the Great Plains Landscape Conservation Cooperative Anadromous Fish Index, CT River Watershed Landscape Resistance to Terrestrial Species Movement (90 m) Terrestrial Landscape Resilience to Climate Change (90 m) Vernal Pools (Level 2), 2015, Northeast Management and Conservation Stewardship of Alaska Lands, 2006, The Nature Conservancy Resilience Stratified by Setting and Ecoregion with Regional Override, 2016, Eastern U.S. and Canada Terrestrial Resilience, New York State Pennsylvania Watersheds with a Documented Bat Occurrence Identifying Important Migratory Landbird Stopover Sites in the Northeast Science Brief for Resource Managers: Metacommunity Dynamics of Gila River Fishes Anadromous Fish Index, CT River Watershed Science Brief for Resource Managers: Metacommunity Dynamics of Gila River Fishes Pennsylvania Watersheds with a Documented Bat Occurrence New Mexico Statewide Resources Assessment The Nature Conservancy - Fee Title and Easements for the Great Plains Landscape Conservation Cooperative Vernal Pools (Level 2), 2015, Northeast Terrestrial Resilience, New York State Identifying Important Migratory Landbird Stopover Sites in the Northeast Landscape Resistance to Terrestrial Species Movement (90 m) Terrestrial Landscape Resilience to Climate Change (90 m) Fish Regions, Northeast Freshwater Ecoregions, Northeast Resilience Stratified by Setting and Ecoregion with Regional Override, 2016, Eastern U.S. and Canada Management and Conservation Stewardship of Alaska Lands, 2006, The Nature Conservancy