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Start Over Subject Biology and Ecology Bounding Box -180 -89.81531 180 89.456192

11. Omernik's Level III Ecoregions of the Continental United States, 2003

Datasets Stanford University Public content
2003. United States. Environmental Protection Agency. This polygon shapefile shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of... National Atlas of the United States.

12. 100-Meter Resolution Land Cover of Alaska, 2001

Datasets Stanford University Public content
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing land cover data for Alaska, in an Albers Equal-Area Conic projection and at a resolution of 1... Geological Survey (U.S.).

13. 100-Meter Resolution Tree Canopy of Alaska, 2001

Datasets Stanford University Public content
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing tree canopy data for Alaska, in an Albers Equal-Area Conic projection and at a resolution of ... Geological Survey (U.S.).

14. North American Bat Ranges, 1830-2008

Datasets Stanford University Public content
1830, 1831, 1832, 1833, 1834, 1835, 1836, 1837, 1838, 1839, 1840, 1841, 1842, 1843, 1844, 1845, 1846, 1847, 1848, 1849, 1850, 1851, 1852, 1853, 1854, 1855, 1856, 1857, 1858, 1859, 1860, 1861, 1862, 1863, 1864, 1865, 1866, 1867, 1868, 1869, 1870, 1871, 1872, 1873, 1874, 1875, 1876, 1877, 1878, 1879, 1880, 1881, 1882, 1883, 1884, 1885, 1886, 1887, 1888, 1889, 1890, 1891, 1892, 1893, 1894, 1895, 1896, 1897, 1898, 1899, 1900, 1901, 1902, 1903, 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1911, 1912, 1913, 1914, 1915, 1916, 1917, 1918, 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926, 1927, 1928, 1929, 1930, 1931, 1932, 1933, 1934, 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and 2008. National Atlas of the United States. This poygon shapefile portrays the distributions of United States and Canadian bat species during the past 100-150 years (1830-2009). The specimen ... National Atlas of the United States.

17. 100-Meter Resolution Land Cover of the Conterminous United States, 2001

Datasets Stanford University Public content
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing land cover data for the conterminous United States, in an Albers Equal-Area Conic projection ... National Geospatial Program, The National Map Small Scale.

19. Breeding Bird Survey Route Locations for Lower 48 States, 1966-1998

Datasets Stanford University Public content
1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, and 1998. Patuxent Wildlife Research Center. This line shapefile portrays the current routes used for conducting Breeding Bird Surveys in the lower 48 States. This layer is part of the 1997-20... National Atlas of the United States.

20. Pinniped Haul-Out Sites: California, 2013

Datasets Stanford University Public content
2013. California. Department of Fish and Game. Marine Resources Region. This point shapefile depicts a compilation of marine mammal haul out features used in three Marine Life Protection Act study regions: north central... California. Department of Fish and Game. Marine Resources Region.