Apr 11, 2011 biodiversity hotspots and wwf global 200 ecoregions apr 11, 2011 last modified apr 3, 2012 created by conservation biology institute. This study considers costs imposed by climate change, to provide evidence for use in policy and program design, both within the climate initiative and in the other two. Estimates of landcover change per time period, normalized to annual rates of change for all 30 western united states ecoregions gray bars. The global 200 is the list of ecoregions identified by wwf, the global conservation organization, as priorities for conservation. Campbell 2012 north american vegetation model for landuse planning in a changing climate. Indigenous and traditional peoples of the world and. List of terrestrial ecoregions wwf 867 terrestrial ecoregions. Ecoregions are geographical regions that are characterized by specific ecological patterns, including soil health, flora and fauna, climatic conditions, among other factors. The eastern portion has been strongly glaciated and generally contains higher mountains than are found in the klamath mountains to the northwest. It is available from noaas national geophysical data center. Ecological regions are areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. This process yielded 238 ecoregions the global 200 comprised of 142 terrestrial, 53 freshwater, and 43 marine priority ecoregions.
Environmental protection agency office of research and developments western ecology division. Clickable map of level iii and iv ecoregions by state. Currently this site only has a few datasets but our plan is to increase the available datasets on a regular basis. This page was last edited on 16 january 2018, at 03. These ecoregions include those with exceptional levels of biodiversity, such as high species richness or endemism, or those with unusual ecological or evolutionary phenomena. 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. Description of the ecoregions of the united states 2nd ed. There are two global 200 ecoregions where we chose to aggregate a large number of regional scale ecoregions. This map depicts the 825 terrestrial ecoregions of the globe. New mexicos mountain ranges, the continental divide, the rio grande valley and the eastern plains create the quilt of agroecoregions. Biodiversity assessment and threats analysis for the wwf global. In the united states, the epa and the united states geological survey usgs are the principal federal agencies working with the cec to define and map ecoregions.
Names in are alternatives included for consistancy with other tpwd initiatives. Land use and landscape structural changes in the ecoregions of ghana effah kwabena antwi. Much of the central and southern parts of the region is underlain by. Ecoregionbased design for sustainability 2002, 22 x 34, color, rolled or folded ecoregions 1998, 22 x. The global 200 provides a conservation guide to the worlds most important terrestrial, marine and freshwater ecoregions. The box in each agroecoregion lists the main sources of irrigation and most profitable crops. Another 36 are agglomerations of two tow ecoregions into a single global 200 ecoregion.
Indigenous and traditional peoples of the world and ecoregion conservation. List of marine ecoregions wwf, 232 marine ecoregions of the coastal and continental shelf areas. These highlight major ecological areas and provide the broad backdrop to the ecological mosaic of the continent, putting it in context at global or intercontinental scales. This comprehensive, global map provides a useful framework for conducting biogeographical or. This list of ecoregions in the united states provides an overview of united states ecoregions designated by the u. Olson2,3 and eric dinerstein2 abstract a global strategy to conserve biodiversity must aim to protect representative examples of all of the worlds ecosystems, as well as those areas that contain exceptional concentrations of species and endemics.
An ecoregionbased approach to protecting half the terrestrial realm. Level iii ecoregions of texas 27 january 2011 projection. These data are available for use for valid scientific, conservation, and educational purposes. While macroscale global ecoregions maps have been used in global. To make sure you are using the most current ecoregion data, download shapefiles of ecoregions.
Nov 12, 2016 level i ecoregions of north america select map for larger pdf version north america has been divided into 15 broad, level i ecological regions. National health and environmental effects research laboratory. The cec was established in 1994 by the member states of canada, mexico, and the united states to address regional environmental concerns under the. Land use and landscape structural changes in the ecoregions of ghana processesthroughthe distribution of naturalresourcesfor diverse socioeconomic needs. Here, the global policies articulated in the paris agreement and the proposed gdn merge with addressing. Conservation organizations and environmental agencies use the concept of an ecoregion to systematically understand how biodiversity levels and ecosystem dynamics differ. Apr 11, 2011 last modified apr 3, 2012 created by conservation biology institute. They were obtained from the national health and environmental effects research laboratory u. The wwf biodiversity vision develops the rationale, the goals and the major requirements for ecoregion conservation to occur successfully. The global 200 ecoregions biodiversity is not spread evenly across the earth but follows complex patterns determined by climate, geology and the evolutionary history of the planet. Effective conservation in this set of ecoregions would help conserve the most outstanding. Ecoregionbased design for sustainability 2002, 22 x 34, color, rolled or folded ecoregions 1998, 22 x 34, color, rolled or folded.
Biodiversity hotspots and wwf global 200 ecoregions data. An assessment of the representation of ecosystems in global. Priority ecoregions for global conservation1 david m. This chapter has been modified from original material published in sleeter and raumann 2006, entitled landcover trends in the mojave basin and range ecoregion u. Files are available under licenses specified on their description page. Geological survey scientific investigations report 20065098. Ecoregions of the continents ecoregions rmrs us forest. Spacesterrestrial ecoregions, for the secretariat of the commission for environmental cooperation. Sequential unique whole numbers that are automatically generated. 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. This process yielded 238 ecoregionsthe global 200comprised of 142 terrestrial, 53 freshwater, and 43 marine priority ecoregions. Level iii ecoregions of the continental united states, us environmental protection agency 2004.
Estimates of change for central basin and range ecoregion are represented by red bars in each time period. The global 200 is the list of ecoregions identified by wwf as priorities for conservation. The global 200 ecoregions represent those ecoregions where wwf is initially focusing its ecoregion conservation efforts to develop biodiversity visions. The material herein may be reproduced without seeking. Wwfs global 200 is a first attempt to identify a set of ecoregions whose conservation would achieve the goal of saving a broad diversity of the earths ecosystems. Ecoregions of north america ecosystems research us epa.
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. An ecoregion ecological region is an ecologically and geographically defined area that is. They were obtained from the national health and environmental effects research. Chapter 20central basin and range ecoregion 211 figure 3. To the north of the congo basin and forest savannah mosaic is the sahel acacia savanna, while to the south are the miombo forest savannah woodlands.
Access to level iii and iv maps, gis data, and descriptive information can be obtained by clicking on any completed state in the status map below. List of ecoregions in the united states epa wikipedia. Ecoregions are areas where ecosystems and the type, quality, and quantity of environmental resources are generally similar. Primary distinguishing characteristics of level iii ecoregions of the continental united states the level iii ecoregions used in cropmap were revised march 1999. This multitiered, broadscale, hierarchical system of ecoregions is based on numerous environmental variables at each level. Maps and posters ecoregions rmrs us forest service. This map shows the estimated original extent of the global 200 ecoregions, not. They serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. Effective conservation in this set of ecoregions would help conserve the most outstanding and representative habitats for biodiversity on this planet.
Priority ecoregions for global conservation article pdf available in annals of the missouri botanical garden 892 september 2003 with 830 reads how we measure reads. Terrestrial ecoregions of the world teow is a biogeographic regionalization of the earths terrestrial biodiversity. Learn more about this work in wwf documents and reports from priority ecoregions. Level iii ecoregions of new mexico revised april 2000 national health and environmental effects research laboratory u.
Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. We analyzed global patterns of biodiversity to identify a set of the earths terrestrial, freshwater, and marine ecoregions that harbor exceptional biodiversity and are. Global 200 ecoregions wwf, 238 single or combined ecoregions identified by the world wildlife fund wwf as priorities for conservation. Other ecoregions of central africa global forest atlas. Priority ecoregions for global conservation article pdf available in annals of the missouri botanical garden 89.
Level i ecoregions of north america select map for larger pdf version north america has been divided into 15 broad, level i ecological regions. All structured data from the file and property namespaces is available under the creative commons cc0 license. Ecoregion conservation is currently well underway in many of wwfs global 200 ecoregions. Environmental protection agency, 1997 covers approximately,922 km2 50,549. Level iii ecoregions of new mexico landscape architecture. World wildlife fund global 200 terrestrial ecoregions. The rationale is that a global map of ecoregions can serve as the. Effective conservation in these ecoregions would help conserve the most outstanding and representative habitats for biodiversity on this planet. Biodiversity hotspots and wwf global 200 ecoregions data basin. Mar 22, 2016 information and links to downloadable maps and datasets for level iii and iv ecoregions, listed by state. Surrounding the rainforests of central africa is a diversity of savannah and woodland ecosystems, which transition to progressively drier ecoregions to the north and the south. This data was used to provide a general description of the ecosystem geography. The 200 ecoregions were ranked based on their current and future threats and conservation status.
If this is what you are after i would recommend using the nature conservancy modification to olsen that deals with some of the known issues with the original classification my preference is the brown et al. Primary distinguishing characteristics of level iii. A total of 238 global 200 ecoregions have been identified of which 142 60% are terrestrial, 53 22% are freshwater, and 43 18% are marine. Land use and landscape structural changes in the ecoregions. Conservation organizations and environmental agencies use the concept of an ecoregion to systematically understand how biodiversity levels and ecosystem dynamics differ across the world. 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. Ecoregions are areas of general similarity in the type, quality, and quantity of environmental resources. The mojave basin and range ecoregion omernik, 1987. The original ecoregion data was projected from albers to web mercator for this map service. This map shows some biodiversity hotspots in portions north and southern america from the two global datasets. Terrestrial ecoregions of the world publications wwf. Because of its size and range of latitude, topography, and climate, india is home to a great diversity of ecoregions, ranging from permanent ice and snow to tropical rainforests. Clickable map of level iii and iv ecoregions of multiple state.
This map service displays level iii and level iv ecoregions of the united states and was created from ecoregion data obtained from the u. Environmental protection agency epa and the commission for environmental cooperation cec. The conservation science program is developing its capacity to make available more of the data that wwf have created andor improved. Pdf file annals of the missouri botanical garden 89. Terrestrial ecoregions of africa and madagascar book. The following styles are associated with this data set. Information and links to downloadable maps and datasets for level iii and iv ecoregions, listed by state. Baileys ecoregions of the conterminous united states. Level iii and iv ecoregions by state ecosystems research. Biodiversity hotspots and wwf global 200 ecoregions. It is widely recognized that interlinked ecosystems combine to form a whole that is. In 1997, wwf embarked on ecoregion conservation as a response to the increased pace of degradation of the worlds. According to wwf, an ecoregion is defined as a relatively large unit of land or water containing a characteristic set of natural communities that share a large majority of their species dynamics, and environmental conditions.