USGS - science for a changing world

Biodiversity Information Serving Our Nation (BISON)

Notice

The BISON Web Service APIs have been updated. A summary of the enhancements to the APIs include:

Please check the BISON Web Services Page for complete details.

Developer Tools

Several demos have been created that use the BISON API to enable developers and scientists to create unique custom applications.

The application supports both Spherical Mercator and Plate Carree projection. The particular version of Plate Carree that the application supports is EPSG:4326 (longitude/latitude). EPSG:4326 has different axis ordering (the specification of longitude, latitude or latitude, longitude) depending upon who you ask. The EPSG Geodetic Parameter Registry defines EPSG:4326 as latitude, longitude. The Open Geospatial Constorium (OGC) defines the axis ordering depending upon what version of WMS you are using. Before WMS version 1.3 the axis ordering was longitude, latitude. WMS version 1.3 specifies an axis ordering of latitude, longitude. BISON supports WMS 1.1.1 and the axis ordering of longitude, latitude. The BISON OGC WMS only supports the EPSG:3857 Spherical Mercator coordinate system.

Brook Trout Occurrences in Mount Desert Island


Using OpenLayers and the BISON search API, occurrence records are retrieved for Brook Trout on Mount Desert Island which is part of Acadia National Park in Maine. The USGS National Map is called for base layer information. The circles are Brook Trout occurrence locations.

The code creates a polygon that surrounds Mount Desert Island. It is important to realize that BISON uses a Spherical Mercator projection and that is why we convert from EPSG:4326 to EPSG:3857 for the bounding rectangle. EPSG codes are standardized numbers that OpenLayers uses to define projections and transformations precisely.





National Heat map of Blue Jays


Using OpenLayers and the BISON search API the statistical distribution of blue jays is displayed on a choropleth map (heat map) of the United States.

It is important to realize that BISON uses a Spherical Mercator projection and that is why we convert from EPSG:4326 to EPSG:3857 for the bounding rectangle. EPSG codes are standardized numbers that OpenLayers uses to define projections and transformations precisely.







HTML 5 Red Tailed Hawk


Using HTML 5 (which Internet Explorer 8 does not support) Red Tailed Hawks are shown in Northern Virginia. The bounding box coordinates are specified in Spherical Mercator (EPSG:3857).







Alpine Sweet Grass


Using HTML 5 (which Internet Explorer 8 does not support) Alpine Sweet Grass is mapped on the North Slope of Alaska. The bounding box parameters are specified using longitude, and latitude repectively. The projection used is EPSG:4326 which is specific version of Plate Carree (equirectangular projection). The distortion in the map is caused by the exterme Northern latitude and the projection specified.








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