A map of freshwater ecoregions of the world, released in 2008, has 426 ecoregions covering virtually the entire nonmarine surface of the earth. Ecoregion simple english wikipedia, the free encyclopedia. The information contained herein is the responsibility of the author and does not necessarily reflect the views of the cec, or the governments of canada, mexico or the united states of america. Wwf conservation science wwfs terrestrial ecoregions. Ecoregions are relatively large units of land containing distinct assemblages of natural communities and species, with boundaries that approximate the original extent of natural communities prior to major landuse change. New map of life on earthpublished by the american institute of biological science olson et al. This is the master spatial data layer for tncs terrestrial ecoregions of the world, exported from the geodatabase. Indigenous and traditional peoples of the world and ecoregion. We have developed a detailed map of the terrestrial ecoregions of the world that is better suited to identify areas of outstand ing biodiversity and. Ecoregions are defined as relatively large areas of land or water in the world containing a characteristic set of natural communities that share a large majority of their species, dynamics, and environmental conditions. In ecological terms, these are strongly cohesive units, sufficiently large to encompass ecological or life history processes for most sedentary species. World wildlife fund and nature conservancy terrestrial ecoregion layer, 2011 source data available here. Nov 18, 2011 freshwater ecoregions of the world, feow provides a new global biogeographic regionalization of the earths freshwater biodiversity.
Terrestrial ecoregions a total of 14 major habitat types reflect the diverse array of organisms adapted to life on land. An ecoregionbased approach to protecting half the terrestrial realm. Conservation science terrestrial ecoregions of the world. Freshwater ecoregions are distinct from terrestrial ecoregions, which identify biotic communities of the land, and marine ecoregions, which are biotic communities of the oceans. The map of terrestrial ecoregions of the world recognizes 867 distinct units, roughly a fourfold.
Nov 01, 2001 1 november 2001 terrestrial ecoregions of the world. Its available for free, along with the digital version of its companion map, indigenous and traditional peoples in the worlds terrestrial ecoregions. Terrestrial ecosystems of the world teow from wwfus olson. A large area of land or water that contains a geographically distinct assemblage of natural communities that. This is a list of terrestrial ecoregions as compiled by the world wildlife fund wwf. Oct 27, 2010 this map depicts the 825 terrestrial ecoregions of the globe. This map depicts the 825 terrestrial ecoregions of the globe. Covering virtually all freshwater habitats on earth, this firstever ecoregion map, together with associated species data, is a useful tool for underpinning global and regional conservation planning efforts, particularly to identify outstanding and. Terrestrial ecoregions of the world teow is a biogeographic regionalization of the earths terrestrial biodiversity.
Dinerstein 2002, bailey 1995 and environment canada wiken, 1986, these data layers were modified by the nature conservancy tnc to be used in its. Level i ecoregions of north america select map for larger pdf version north america has been divided into 15 broad. These communities share a large majority of their species, dynamics, and environmental conditions. Although some marine ecoregions may have important levels of endemism, this is not a key determinant in ecoregion identification, as it has been in terrestrial ecoregions. A conservation assessment of the terrestrial ecoregions of. Indigenous and traditional peoples in the worlds terrestrial. Earths biologically richest and most endangered terrestrial ecoregions find, read and cite all the research you need on researchgate. The biogeographic units are ecoregions, which are defined as relatively large units of land or water containing a distinct assemblage of natural communities sharing a large majority of species, dynamics, and environmental conditions. The material herein may be reproduced without seeking.
Terrestrial ecosystems of the world teow, version 2. This is the master spatial data layer for tncs terrestrial ecoregions of the world, exported from the geodatabase listed above. Select a link for additional details about each level, or a list of links to downloadable maps and gis data files. Ricketts is affiliated with the conservation science program of world wildlife fund. Terrestrial ecoregions of the world teow is a map with a biogeographic regionalization of the earths terrestrial biodiversity. These habitats range from the wettest of forest types to the driest and hottest desert conditions. A total of 14 major habitat types reflect the diverse array of organisms adapted to life on land. An ecoregion based approach to protecting half the terrestrial realm. We define ecoregions as relatively large units of land containing a distinct assemblage of natural communities and species,with. This ecoregion framework is derived from omernik 1987 and from mapping done in collaboration with epa regional offices, other federal agencies, state resource management agencies, and neighboring north american countries. Terrestrial ecoregions of the world teow is a map with a biogeographic regionalization of the earths.
Build your own mapping portal and publish it to the world or to just a few collaborators. The map of terrestrial ecoregions of the world recognizes 867 distinct units, roughly a fourfold increase in biogeographic discrimination over that of the 193 units of udvardy 1975. Maps of freshwater and marine ecoregions are similarly needed for conservation planning. Ecoregions of north america ecosystems research us epa. Maps offreshwater and marine ecoregions are similarly needed for conservation planning. Terrestrial ecoregions of the world publications wwf.
World wildlife fund terrestrial ecoregions represents global terrestrial ecoregions. Terrestrial ecoregions of the indopacific offers a comprehensive examination of the state of the indopacifics biodiversity and habitats, moving beyond endangered or charismatic species to quantify for the first time the number of mammal and bird species, including endemics, in each ecoregion. The map overlays the locations of the worlds ethnolinguistic groups represented by the locations of the worlds languages onto. Downloads a shapefile containing the terrestrial ecoregions as defined by. A conservation assessment of the terrestrial ecoregions of latin america and the caribbean english abstract.
Global ecoregions, major habitat types, biogeographical realms and the nature conservancy terrestrial assessment units as of december 14, 2009 developed originally by olson, d. Wwf international, terralingua, and unep, 2000 this map is a companion to the wwfterralingua report indigenous and traditional peoples of the world and ecoregion conservation. Covering virtually all freshwater habitats on earth, this firstever ecoregion map, together with associated species data, is a useful tool for underpinning global and regional conservation planning efforts, particularly to identify outstanding and imperiled. Note that it includes mangroves, inland water, and rock and ice mhts, although they are not being handled by terrestrial assessments. World wildlife fund the leading organization in wildlife conservation and endangered species. Ecoregions are areas where ecosystems and the type, quality, and quantity of environmental resources are generally similar.
On our map, the indoburma hotspot mittermeier et al. Nov 01, 2001 the map of terrestrial ecoregions of the world recognizes 867 distinct units, roughly a fourfold increase in biogeographic discrimination over that of the 193 units of udvardy 1975. Our biogeographic units are ecoregions, which are defined as relatively large units of land or water containing a distinct assemblage of natural communities sharing a large majority of species, dynamics, and environmental. Terrestrial ecosystems of the world teow from wwfus. Level ii terrestrial ecosystems ecological regions are areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources.
An integrated approach to conserving the worlds biological and cultural diversity. A new global map of terrestrial ecoregions provides an innovative tool for conserving biodiversity david m. Our biogeographic units are ecoregions, which are defined as relatively large units of land or water containing a distinct assemblage of natural communities sharing a large majority of species, dynamics, and environmental conditions. Freshwater ecoregions of the world, feow provides a new global biogeographic regionalization of the earths freshwater biodiversity. The wwf identifies terrestrial, freshwater, and marine ecoregions the terrestrial scheme divides the earths land surface into 8 terrestrial ecozones, containing 867 smaller ecoregions. World wide fund for natures full definition of an ecoregion, which is widely accepted and used, is the following. The map of terrestrial ecoregions of the world recognizes 867 distinct units, ro ughly a fourfold increase in biogeographic discr imination over that of the 193 units of ud va rd y 1975. An ecoregion is defined as a relatively large area of land or water that contains a geographically distinct assemblage of natural communities. This prioritysetting study elevates, as a first principle, maintaining the representation of all ecosystem and habitat types in regional investment portfolios. Worlds terrestrial ecoregions classified according to whether the 17% aichi target has been or not achieved in june 2016 for pa coverage andor for protected connected land protconn for a reference dispersal distance d 10 km.
Download the report download the digital map purchase the poster version of the map. A conservation assessment of the terrestrial ecoregions of latin america and the caribbean eric dinerstein david m. Bookbinder george ledec published in association with the world wildlife fund the world bank washington, d. The wwf has identified 825 terrestrial ecoregions, and approximately 450 freshwater ecoregions across the earth.
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