USGS - National Biogeographic Map
收藏资源简介:
This application allows the viewer to spatially and graphically view the first leave spring index, first bloom spring index, a comparison of the two, fish habitat condition and disturbance summaries, protection status of ecological systems, most reported marine species per exclusive economic zone, and the protection status of terrestrial vertebrate species. The USFS describes the application as: "A new dataset of habitat distribution for terrestrial vertebrate species in the conterminous United States is now available from the USGS. These data represent foundational data for the USGS National Biogeographic Map. This project is designed to integrate and expand a wide range of biological data and analysis for use by land managers, decision makers, and others addressing biodiversity challenges. These species data are one of the foundational data sets in the Map."



