Anthropogenic Biomes of the World (Anthromes) v 1.0, 2000

A global map of anthropogenic biomes has been produced, based on an empirical analysis of global patterns of sustained direct human interaction with ecosystems. Input data include global data sets of population (urban, non-urban from (Landscan 2005), land use (percent area of pasture, crops, irrigation, rice, urban land from Siebert et al., 2005; Ramankutty et al., 2008; and Monfreda et al., 2008), and land cover (percent area of trees and bare earth from Hansen et al., 2003). Biome analysis was conducted at 5 arc minute resolution (5� grid cells cover ~ 86 km2 at the equator), a spatial resolution selected as the finest allowing direct use of high-quality land-use area estimates. yielding the 18 anthropogenic biome classes and three wild biome classes. More than 75% of Earth�s ice-free land showed evidence of alteration as a result of human residence and land use, with less than a quarter remaining as wildlands, supporting just 11% of terrestrial net primary production. For more information, see Ellis, E.C., and N. Ramankutty. 2008. Putting people in the map: anthropogenic biomes of the world. Frontiers in Ecology and the Environment 6(8): 439-447. References: Monfreda, C., N. Ramankutty, and J. A. Foley. 2008. Farming the planet: 2. Geographic distribution of crop areas, yields, physiological types, and net primary production in the year 2000, Global Biogeochem. Cycles, 22, GB1022, doi:10.1029/2007GB002947; Ramankutty, N., A.T. Evan, C. Monfreda, and J.A. Foleyl. 2008. Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000. Global Biogeochemical Cycles 22, GB1003, doi:10.1029/2007GB002952; Siebert, S., S. Feick, and J. Hoogeveen. 2005. A digital global map of irrigated areas: An update for Asia. Frankfurt Hydrology Paper 01, Frankfurt University,Frankfurt/M., Germany and Food and Agriculture Organization of the United Nations, Rome, Italy [www.fao.org/nr/water/aquastat/irrigationmap/index.stm]; and Hansen, M., R. DeFries, J. R. Townshend, M. Carroll, C. Dimiceli, and R. Sohlberg. 2003. MODIS 500 m Global Vegetation Continuous Fields Percent Tree Cover. Available online at [http://glcf.umiacs.umd.edu/data/modis/vcf/] from the Department of Geography, Global Land Cover Facility, University of Maryland, College Park, Maryland, USA.