Filters: Tags: eastern North America (X) > Categories: Data (X)

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Regional Flow 2016, Eastern U.S. and Canada 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 places... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Blocked/Low Flow, Blocked/Low Flow, Circuitscape, Circuitscape, Concentrated flow, All tags... Concentrated flow, Constrained Flow, Constrained Flow, Data, Diffuse Flow, Diffuse Flow, LCC Network Science Catalog, North Atlantic Landscape Conservation Cooperative Data.gov, Resilience, Resilience, Resilient sites, Resilient sites, completed, dataset, dataset, eastern North America, eastern North America, regional flows, regional flows, wall to wall, wall to wall, Fewer tags Monarch Threats Analysis: data Data are population size estimates for monarch butterflies overwintering in Mexico as well as 76 potential stressors and 3 correlates. These stressors include disease, pesticide, herbicide, temperature, precipitation, and habitat loss measured for Mexican overwintering area and Southern, North Central, and Northeastern breeding areas. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Eastern North America, Extreme weather, Forest loss, Monarch butterfly, USGS Science Data Catalog (SDC), All tags... glyphosate, neonicotinoid, Fewer tags Code and data for 'Confirmation of a decline in the summer population of the monarch butterfly due to habitat loss' This code describes graphical and analytical comparisons between monarch butterfly survey data collected during summer breeding, fall migration, and winter. Categories: Data; Tags: Danaus plexippus, Ecology, Land Use Change, Monarch Butterfly Biosphere Reserve, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biota, citizen science, eastern North America, glyphosate, monarch butterfly, 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