Description of the ecoregions of the United States

Cover of: Description of the ecoregions of the United States |

Published by U.S. Dept. of Agriculture, Forest Service in Ogden, Utah .

Written in English

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Subjects:

  • Ecology -- United States.,
  • Biotic communities -- United States.,
  • Ecology -- United States.

Edition Notes

Book details

Statementcompiled by Robert G. Bailey.
SeriesMiscellaneous publication -- no. 1391., Miscellaneous publication (United States. Dept. of Agriculture) -- no. 1391.
ContributionsBailey, Robert G., 1939-, U.S. Fish and Wildlife Service., United States. Forest Service.
The Physical Object
Paginationiv, 77 p. :
Number of Pages77
ID Numbers
Open LibraryOL15256336M

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Editorial Reviews. This publication describes and illustrates he map included at the back. The map is on a scale of(1 in = mi) and shows ecosystems of regional extent, or ecoregions, differentiated according to a hierarchical scheme modified from Crowley () and using climate and vegetation as indicators of the extent Author: Robert G.

Bailey. A map titled "Ecoregions of the United States," published inshows an initial attempt to systematically divide the country into ecosystem regions. This map, along with a brief narrative that described the approach and development of the system, was prepared by the Forest Service for the Interior Department's Fish and Wildlife.

texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK (US) Description of the ecoregions of the United States Item Preview remove-circle Description of the ecoregions of the United States by.

Additional Physical Format: Online version: Bailey, Robert G., Description of the ecoregions of the United States. Washington, DC: U.S. Dept. of Agriculture. Additional Physical Format: Online version: Description of the ecoregions of the United States. Washington, D.C.: U.S.

Dept. of Agriculture, Forest Service, texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK (US) Genealogy Lincoln Collection. National Emergency Library.

Top Full text of "Description of the ecoregions of the United States" See other formats. Description of the Ecoregions of the United States Compiled by Robert G.

Bailey, March This volume was originally published in to provide a general description of the ecosystem geography of the Nation as shown on the map "Ecoregions of the United States.". Ecoregions; Robert G. Bailey; Rocky Mountain Research Station; W Prospect Rd; Fort Collins, CO USA () From: Bailey R.G.

Description of the ecoregions of the United States. US Department of Agriculture Forest Service Publication Washington DC, USA. Ecoregions are based on Bailey () but subdivided in The Nature Conservancy Terrestrial Ecoregions (Olson and Dinerstein, ).

Climate data are Author: Robert G Bailey. Terrestrial Ecoregions of North America. ISBN: Pub Date: Lauded in the New York Times science section as "a sweeping analysis of the ecosystems of the United States and Canada," this volume represents an unparalleled source of information and data for scientists and conservationists working in North America.

Information and downloadable maps and datasets for Level III and IV ecoregions of the continental United States. Ecoregions are areas of general similarity in the type, quality, and quantity of environmental resources.

Chapter 1: Study Area Description Mary M. Rowland and Matthias Leu Abstract. The boundary for the Wyo-ming Basins Ecoregional Assessment (WBEA) was largely determined by the co-occurrence of some of the largest tracts of intact sagebrush (Artemisia spp.) re-maining in the western United States with areas of increasing resource Size: 2MB.

Global warming and human-driven impacts are changing the World’s ecological zones. This book applies the principles described in Bailey’s Ecosystem Geography: From Ecoregions to Sites, 2nd ed.

(Springer1st ed. ) to describe and characterize the major terrestrial and aquatic ecological zones of the by: 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.

Ecoregions may be identified by similarities in geology, physiography, vegetation, climate, soils, land use, wildlife distributions, and hydrology. That's because the United States is composed of several different ecoregions. An ecoregion is a large piece of land (or water) that contains its own unique natural community.

In. - Includes text, brief-name indexed legend within map border, number-keyed descriptive index of regions in text area, inset map of "Level III ecoregions of the conterminous United States", and col. ill. for each ecoregion. - Text and indexed "Summary table--characteristics of the ecoregions.

Quantitative Soil Descriptions for Ecoregions of the United States Article in Journal of Environmental Quality 32(2) March with 22 Reads How we measure 'reads'.

This is a list of terrestrial ecoregions of the 50 United States, as defined by the World Wildlife Fund: List of Ecoregions in the United States (EPA) Ricketts, Taylor H; Eric Dinerstein; David Marine West Coast Forest: 1 Coast Range, 2 Puget.

-Geoscience Canada "Ecoregions offers an invaluable source of description, interpretation and analysis of global patterns of ecosystem distribution and successfully provides the reader with a means of making sense of these patterns." -Geography Robert G.

Bailey is a geographer with the United States Forest Service in Fort Collins, Colorado. The increasing importance of ecoregions is confirmed by the fact that much planning, research, and management efforts by the US Forest Service, The Nature Conservancy, World Wildlife Fund and other organizations are taking place now within the framework of ecoregions.

Over years since the book was first published a number of studies have. reference: Description of the Ecoregions of the United States (2nd ed.). Misc. Pub. FOR SALE BY U.S. GEOLOGICAL SURVEY P.O.

BOXDENVER, COLORADO SOURCES Allan, P.F.,Ecological bases for land use planning in Gulf Coast marshlands: Journal of Soil and Water. Description ofthe ecoregions ofthe United States. Department ofAgriculture, Miscellaneous Publication No.77 pp.

This publication qrieflydescribes and illustrates the Nation'secosystem regions as shown 'in the map, "Ecoregions ofthe United States." A copy ofthis map, described in the Introduction, can be found between the.

Description: Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. Level II divides the continent into 52 regions (Commission for Environmental Cooperation Working Group, ).

At Level III, the continental United States contains regions whereas the conterminous United States has 84 (U.S. Environmental Protection Agency, ). Level IV ecoregions are further subdivisions of Level III ecoregions. Primary Distinguishing Characteristics of Level III Ecoregions of the Continental United States The level III ecoregions used in CropMAP were revised March They were obtained from the National Health and Environmental Effects Research Laboratory U.S.

Environmental Protection Agency. For a map of the level III ecosystems of the. The appendix contains a description of ry: BOOKS_AND_REFERENCE. A map of ecological regions of the conterminous United States, first published inhas been greatly refined and expanded into a hierarchical spatial framework in response to user needs, particularly by state resource management agencies.

In collaboration with scientists and resource managers from numerous agencies and institutions in the United States, Mexico, and. Brief narrative descriptions of each level I region can be found in the CEC publication Ecological Regions of North America--Toward a Common Perspective.

The 50 level II North American ecological regions provide a more detailed description of the large ecological areas nested within the level I regions and are useful for national and sub. The description of ecoregions is largely holistic and qualitative. Conversely, quantitative information for soil are abundant and soil is an important ecosystem component related to many ecoregion properties.

We used the nationwide State Soil Geographic database (STATSGO) to describe the soils of 84 Level III ecoregions in the United States. Wall map (poster) showing physiographic regions in New York State.

Does not show specific ecological features in map content (but mentions them in text). Relief shown by shading. Col. logotypes of joint map producers at head of legend: EPA -- USGS -- USDA NRCS. LC copy imperfect: Wrinkled, fold-lined. Includes text, brief-name indexed legend within map border.

Major Land Resource Area (MLRA) MLRA Geographic Database, version (entire U.S., zipped shapefile format, 27 MB). The MLRA Geographic Database is also available by state or county from the Geospatial Data Gateway. MLRA Explorer — An interactive map-based presentation of USDA Agriculture Handbook With the tools in this application, you can:.

United States contains regions (United States Environmental Protection Agency [USEPA],). Level IV is a further subdivision of level III ecoregions. Explanations of the methods used to define the USEPA’s ecoregions are given in Omernik (), Griffith and others (), and Gallant and others ().

These montane pine and oak forests of the Sierra Madre Occidental occur along ridge tops, high valleys, and isolated peaks and slopes in a patchwork distribution from the southern United States (Madrean Sky islands of Arizona) to central Mexico (Jalisco) and are host to a number of endemic species (see description above for details).

Source: Level III Ecoregions of the continental United States, US Environmental Protection Agency Revision of Omernik Names in are alternatives included for consistancy with other TPWD initiatives.

Level III Ecoregions of Texas ® 27 January Projection: Texas Statewide Mapping System Map compiled by the Texas Parks & Wildlife File Size: KB. Media in category "Maps of EPA ecoregions" The following 54 files are in this category, out of 54 total.

Level III ecoregions, United 1, × 1,; KB. Ecoregion Description Location and context. The Hawaiian High Islands Ecoregion lies in the north central Pacific is comprised of the ecological systems, natural communities, and species associated with the terrestrial portion of the main archipelago of the Hawaiian Islands (eight major islands and immediately surrounding islets).

Human activity in the last century has increased nitrogen (N) deposition to a level that has caused or is likely to cause alterations to the structure and function of many ecosystems across the United States. We synthesized current research relating atmospheric N deposition to effects on terrestrial and freshwater ecosystems in the United States, and estimated associated Cited by: 8.

second example is the map, Ecoregions of the United States (Bailey ). In compiling this map, Bailey considered climate, potential natural veg- ctation, soils, and land surface form. However, hierarchical level of classification of Bailey's ecoregions is based primarily on alignments from a particular map.

Spaces•TERRESTRIAL ECOREGIONS, for the Secretariat of the Commission for Environmental Cooperation. 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.

The material herein may be reproduced without seeking.Terrestrial Ecoregions. A total of 14 Major Habitat Types reflect the diverse array of organisms adapted to life on land.

These habitats range from the wettest of forest types to the driest and hottest desert conditions. Moreover, terrestrial communities represented here include the full extent of continental topographic relief: from mangrove.

Omernik, J.M. Ecoregions of the conterminous United States. Map (scale ,). Annals of the Association of American Geographers 77(1) Omernik, J.M. Ecoregions: A spatial framework for environmental management. In: Biological Assessment and Criteria: Tools for Water Resource Planning and Decision Making.

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