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1. Invasive Species, 2007-2008

Raster Stanford University Public content
2007. National Center for Ecological Analysis and Synthesis. This raster dataset contains measurements of invasive species in the world's oceans. See the Lineage section for complete information regarding dat... Science.

3. Massachusetts (Priority Habitats of Rare Species, 2003)

Point Massachusetts Institute of Technology Public content
MassGIS (Office : Mass.). The Priority Habitats of Rare Species datalayer consists of polygons that represent estimations of important state-listed rare species habitats in ... MassGIS (Office : Mass.).

4. Zebra Mussels, New York State, 2001

Point Cornell University Public content
2001. U.S. Geological Survey and Florida Caribbean Science Center. A small mollusk called the zebra mussel has been steadily invading America's rivers and lakes. Zebra mussels colonize water intake pipes and severe...

5. Euphorbia esula, Leafy Spurge, New York State, 2000

Polygon Cornell University Public content
1995. U.S. Department of Agriculture, Natural Resources Conservation Service. Leafy spurge is considered an invasive species which displaces native vegetation in prairie habitats and fields. This data set portrays the county-...

7. 2010 World Wildlife Fund Marine Ecoregions

Polygon New York University Restricted content
2010. World Wildlife Fund Marine Ecoregions represents global marine ecoregions. Ecoregions are defined as relatively large areas of land or water in the... Environmental Systems Research Institute (Redlands, Calif.).

8. 2010 World Wildlife Fund Terrestrial Ecoregions

Polygon New York University Restricted content
2010. World Wildlife Fund Terrestrial Ecoregions represents global terrestrial ecoregions. Ecoregions are defined as relatively large areas of land or wa... Environmental Systems Research Institute (Redlands, Calif.).

9. Spread of Africanized Honey Bees in the United States, 1990-2005

Polygon Stanford University Public content
2006. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.