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Aging infrastructure is creating a pressing national need to align priorities between civil engineering and other interests. Restoring ecological connectivity of river networks that are fragmented by dams and road crossings has become a prominent objective for environmental managers across the country. A mature decision-support framework and newly available data on the condition of dams throughout the Lake Michigan basin offer unique opportunities to test for potential cost-efficiency gains from sharing the costs of removing decrepit dams between environmental and engineering organizations. At sites where these interests align, genuine win-win scenarios could advance both ecological connectivity and infrastructure...
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Table showing human and natural landscape factors used for the 2015 national assessment of stream fish habitat.
Tags: 2015, Hawaii, Table
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The Northeastern States contain over 17,000 dams with most built before 1910 for agricultural and industrial water power uses. A few have been built more recently for flood control, recreation, water supply, and energy generation. In many cases, the dams have outlived their expected life expectancy and use, but continue to block the passage of migratory fish species, such as American Shad, river herring, American Eel, Rainbow Smelt, and Atlantic Salmon, to and from their historic upstream spawning grounds. Additionally, the fragmentation of stream systems by dams have reduced Brook Trout populations in some locations. Progress is being made on this impairment as over 67 dams were removed during 2010 to 2014 in...
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Most severe disturbances in the Northeastern States associated with stream reaches being scored as having high or very high risk of habitat degradation. Disturbances are grouped into super categories (fragmentation by dams; nutrient and sediment pollution; human population; road length and crossings; water withdrawals; urban land use; agricultural land use; mines and impervious surface cover) within the four spatial scales (local catchment, network catchment, local buffer, and network buffer). Only disturbance groups that have greater than 5% of stream length in a given category are represented in this figure. Note that not all disturbance categories are available for each spatial scale; buffers have only urban...
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Most severe disturbances in the Mountain States associated with stream reaches being scored as having high or very high risk of habitat degradation. Disturbances are grouped into large groups (fragmentation by dams; nutrient and sediment pollution; human population; road length and crossings; water withdrawals; urban land use; agricultural land use; mines and impervious surface cover) within the four spatial extents (local catchment, network catchment, local buffer, and network buffer). Only disturbance groups that have greater than 5% of stream length in a given category are represented in this figure. Note that not all disturbance categories are available for each spatial extent; buffers have only urban land use,...
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Relative condition of fish habitat in streams of the Eastern Gulf of Mexico States. Histogram shows percentage of total stream length in each condition class.
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This map shows conservation element summaries within areas of potential near-term and long-term energy development. These summaries help highlight areas of potential conflict between conservation elements and energy development.
This map shows potential areas with high terrestrial biodiversity from TNC Ecoregional Portfolio Core dataset.
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This map shows the current distribution of major invasive vegetation species (primarily cheatgrass and tamarisk), and predicted near-term future distribution of these species. Current distribution was derived from LANDFIRE EVT v1.1, NatureServe National Landcover v2.7, Early Season Invasives (USGS), Predicted Tamarisk Probability (USGS), and mapped areas of tamarisk. Predicted future distribution included these areas in addition to the invasive vegetation class from the LANDFIRE Succession Class v1.0 dataset.
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This map shows the potential current distribution of white-tailed prairie dog, in the context of current and near-term terrestrial intactness and long-term potential for climate change and energy development.
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This map shows areas of high current, near-term, and long-term potential landscape development, based on factors such as urban areas, agriculture, roads, and energy development.
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This map shows the major terrestrial ecosystems from LANDFIRE EVT (v1.1) and NatureServe National Landcover (v2.7).
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This map shows the location of herd management areas (HMAs).
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This map shows Class I Federal PSD Areas using features selected from the CBI Protected Areas Database. Non-attainment areas are not mapped.
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This map shows the potential current distribution of Golden Eagle, in the context of current and near-term terrestrial intactness and long-term potential for climate change and energy development.
Abstract: As the climate changes, human land use may impede species from tracking areas with suitable climates. Maintaining connectivity between areas of different temperatures could allow organisms to move along temperature gradients and allow species to continue to occupy the same temperature space as the climate warms. We used a coarse-filter approach to identify broad corridors for movement between areas where human influence is low while simultaneously routing the corridors along present-day spatial gradients of temperature. We modified a cost–distance algorithm to model these corridors and tested the model with data on current land-use and climate patterns in the Pacific Northwest of the United States. The...
Map of the risk of current fish habitat degradation of Northern Gulf of Mexico estuaries.
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To evaluate the potential effects of climate change on wildlife habitat and ecological integrity in the northeastern United States from 2010 to 2080, a University of Massachusetts Amherst team derived a set of climate projections at a fine spatial resolution for the entire Northeast. The projections are based upon publicly available climate models.This dataset represents the growing season degree days (number of days in which the average temperature is > 10 degrees C) using one of two IPCC greenhouse gas concentration scenarios (RCP8.5). The dataset is intended to represent typical growing season degree days for the year 2060 rather than the actual growing season degree days. MAP UNITS ARE THE SUM OF DEGREES THAT...
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Synopsis: This study evaluates whether previous observations of a higher percentage of parasitism and parasitoid diversity in a complex agricultural landscape, relative to a simple landscape, represent a general phenomenon. Rates of parasitism and parasitoid diversity of the armyworm (Pseudaletia unipuncta) were assessed in three replicate (Onondaga, Ingham, and Benton) regions in southern Michigan. Within each region, a simple landscape (primarily cropland) and a complex landscape (cropland intermixed with mid and late successional noncrop habitats) were identified through analysis of aerial photographs. In each landscape, three maize fields were selected, and second to fourth instar P. unipuncta were released...
This item provides the ScienceBase query that identifies components of the fish habitat assessments within the Southern Plains States. It also contains a link to a configuration file that pulls these pieces of information into a logical order. This information can be accessed through the ScienceBase API to display a summary of fish habitat assessment information for the Southern Plains States.


map background search result map search result map Does agricultural landscape structure affect parasistism and parasitoid diversity? Colorado Plateau REA Change Agents - Development - Current, Near-Term, and Long-Term Potential High Landscape Development Colorado Plateau REA Conservation Elements - Terrestrial Species: Golden Eagle Colorado Plateau REA Conservation Elements - Terrestrial Species: White-Tailed Prairie Dog Colorado Plateau REA Conservation Elements: Potential Areas of High Terrestrial Biodiversity Colorado Plateau REA Terrestrial Ecosystems Colorado Plateau REA MQ D7: Where are HMAs located? Colorado Plateau REA MQ F2: Where are the areas of potential future encroachment from this invasive species? Colorado Plateau REA MQ G2: Where are areas of potential development (e.g., under lease), including renewable energy sites and transmission corridors and where are potential conflicts with CEs? Colorado Plateau REA MQ I3: Where are the designated non-attainment areas and Class I PSD areas? Growing Season Degree Days for Northeast, Projected for 2060, RCP 8.5, Ensemble GCM Results Description of dams and other barriers as a human activity affecting fish habitat in Northeastern States Northeastern States Most Pervasive and Severe Disturbances Figure Mountain States Most Pervasive and Severe Disturbances Figure Eastern Gulf of Mexico States Risk of Current Degradation Chart (Stream Length) Optimization at the infrastructure-connectivity nexus: boosting cost-efficiency of restoration using dam condition data for Lake Michigan Does agricultural landscape structure affect parasistism and parasitoid diversity? Optimization at the infrastructure-connectivity nexus: boosting cost-efficiency of restoration using dam condition data for Lake Michigan Colorado Plateau REA Conservation Elements - Terrestrial Species: Golden Eagle Colorado Plateau REA Conservation Elements - Terrestrial Species: White-Tailed Prairie Dog Colorado Plateau REA Terrestrial Ecosystems Colorado Plateau REA MQ F2: Where are the areas of potential future encroachment from this invasive species? Colorado Plateau REA MQ G2: Where are areas of potential development (e.g., under lease), including renewable energy sites and transmission corridors and where are potential conflicts with CEs? Colorado Plateau REA MQ I3: Where are the designated non-attainment areas and Class I PSD areas? Colorado Plateau REA Change Agents - Development - Current, Near-Term, and Long-Term Potential High Landscape Development Colorado Plateau REA Conservation Elements: Potential Areas of High Terrestrial Biodiversity Colorado Plateau REA MQ D7: Where are HMAs located? Description of dams and other barriers as a human activity affecting fish habitat in Northeastern States Northeastern States Most Pervasive and Severe Disturbances Figure Eastern Gulf of Mexico States Risk of Current Degradation Chart (Stream Length) Mountain States Most Pervasive and Severe Disturbances Figure Growing Season Degree Days for Northeast, Projected for 2060, RCP 8.5, Ensemble GCM Results