Ecological Regions of North America Regiones

Home , Blue Mountains (Nunavut), Interior Plains, Interior Plateau, Thorn forest

40° 45° 50° 55° 60° 65° 70° 75° 80° 85° 85° 80° 75° 70° 65° 60° 55°

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U a ° 4 EDIN t ÓRSH S e U T l i C C m 1 5 ° i 1.0 ARCTIC CORDILLERA t 0 ° 0 o 5 S S f E T p CORDILLERA ÁRTICA S w o O 1 l 4 ° a 0 0 CORDILLÈRE ARCTIQUE r ° 6 I i A I c I e AST Glasgo S 1 ° C C 30° 70 F 1.1 ARCTIC CORDILLERA Á N A 1 ° A 20° 80 BEL CORDILLERA ÁRTICA ° N I É 110° 90 100° e CORDILLÈRE ARCTIQUE R d n n er ol l DUBLI A o de c E c n M in in a ar l L T L e M co 1.1.1 Ellesmere and Devon Islands Ice Caps S in N M L I ’C Alert D A lin A O to I 1.1.2 Baffin and Torngat Mountains c N E C O k In let D Ye ECOLOGA ICD AL REGIONS OF NORTH AMERICA lv Anadyr R e C O rto 2.1.2 N 2.0 TUNDRA L n T N Ba y A E TUNDRA A ’ C É S I C D L TOUNDRA C L H N 1.1.1 E S A I H S U T A L R L T E I S IS REGIONES IECOLÓGICAS DE AMÉRICA DEL NORTE 2.1 NORTHERN ARCTIC K E 2.1.2 M T M E S C H B C I E D ÁRTICO SEPTENTRIONAL A N T A L L N L H A H E IS N E A ) Q B L a L A ARCTIQUE SEPTENTRIONALE U R I A É n I S IZ - se D K A C L E n K D L Í i E N S N O m U I A V H d M E N 2.1.2 A i E 1.1.1 2.1.1 Sverdrup Islands Lowland T t E A RÉGIONS ÉJ COLOGIQUES DE L'AMÉRIQUE DU NORD U e E R MAGNETIC A E U S a A NO p Q RTH POLE L K R E L N

o E C N REYK 2.1.2 Ellesmere Mountains and Eureka Hills x D L K

i H m S PÓLO NO D Point E RTE 1.1.1 U Ø a L B I Î MA PÔLE NORD Hope d GNÉ TICO 2.1.2 A R o MAGNÉTIQUE Pe 2.1.3 Parry Islands Plateau ar d y N Level I-III Nivel I-III Niveau I-III M E e C G l ha h n K ( Barrow ie R lo Prince LANDS 2.1.4 Lancaster and Borden Peninsula Plateaus A SVERDRUP IS 1.1.1 Bering Strait po la Gustaf H I r 2.1.1 R Estrecho de Bering B Adolf a M N E s Wilkins S s 2.1.5 Foxe Uplands 2.2.4 Détroit de Béring A Ballantyne tr e 2.1.1 Sea l

U S 2006 E G Dease Inlet Strait Mack an D F 2.1.1 enzie d wegi O King Nor 2.1.2 Qimusseriarsuaq 2.1.6 Baffin Uplands S Isl R K R P and Smith Bay E T rince E o C S 2.2.1 A P 1.1.1 A 2.2.3 t ire atr o

z o la ick 2.1.1

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b 2.1.4

2.1.7 Gulf of Boothia and Foxe Basin Plains D n v e nd

Nome u is Bay

d i u B S e l q le Harrison M an L E A a b Hecla E E 2.2.2 Bay B e l and 2.1.8 Victoria Island Lowlands 2.2.4 E R e d 2.1.1 tiv Griper R A A a 2.1.1 E R xim M’ Clure Strait B iv U D ppro Bay 2.1.3 Jones Sound BAFFIN er F E Limite a 2.1.9 Banks Island and Amundsen Gulf Lowlands I Bathurst E N Prudhoe Bay O P A R 1.1.1 2.2.3 R R Y I BAY N S o M M S L A N D U r T elv S n s R o t E ille Is evo Pas u o B R land 2.1.4 D 2.2 ALASKA TUNDRA itka G n n E Island nd B A H Í A D E ch I Isla m d A D 2.1.3 TUNDRA DE ALASKA T A N U E 2.1.3 F BAFFIN TOUNDRA D'ALASKA 6.1.1 O G R 50° I T Ba Resolute nk t B A I E D E 2.3.1 s Barrow Strai Lancaster Soundt 1.1.2 atlas.gc.ca nationalatlas.gov 2.2.1 Arctic Coastal Plain 2.2.3 2.1.9 Viscount Melville Sound le Peel Sound n A W I BAFFIN 2.2.3 y 2.2.6 3.1.2 y t Is 2.1.8 n 2.1.4 l Pond Inlet E 2.2.3 la n a U 3.1.2 nd r 2.2.2 Arctic Foothills 7.1.1 6.1.1 ia et i 2.1.4 IQ N t 2.1.8 2.1.3 Somers 1.1.2 T WILDLIFE HABITAT CANADA / HABITAT FAUNIQUE CANADA t m C Amundsen Gulf B Island d R 6.1.1 a A

Mackenzie A 1.1.2 E Kuskokwim Y y B CL 2.2.3 Subarctic Coastal Plains 3.1.2 E R CANADIAN COUNCIL ON ECOLOGICAL AREAS / CONSEIL CANADIEN DES AIRES ÉCOLOGIQUES Atka u 2.1.3 A D E 6.1.1 M S C k Bay 2.1.8 2.1.4 Î A o n Prince of Wales 2.1.5 F T 3.1.1 ’ L 1.1.2 R V ENVIRONMENT CANADA / ENVIRONNEMENT CANADA Bay C 2.2.4 Seward Peninsula Isla nd F E I s 6.1.1 l E s i D S a 3.1.3 Porcupin n C P e F 2.1.8 r I É ra t t H CANADIAN PLAINS RESEARCH CENTER, UNIVERSITY OF REGINA, SASKATCHEWAN, CANADA ta R nk o T S 2.2.5 Bristol Bay-Nushagak Lowlands k Fairbanks lin c S N 7.1.1 3.1.2 iv G O T u R e V k n R 3.1.2 r B I li Home m ay 2.1.9 C T C k u 2.1.5 D 2.1.6 O R AGRICULTURE AND AGRI-FOOD CANADA / AGRICULTURE ET AGROALIMENTAIRE CANADA I A i O n l Bay D R I A h a f v a r I A 2.2.6 Aleutian Islands n F o E Inuvik f T E S e Prince A n 2.1.7 I ENVIRONMENTAL PROTECTION AGENCY, U.S.A. lbert S e B I r ou l O D T Unalaska nd o TIC D K o S R 2.3 BROOKS RANGE TUNDRA L 2.1.8 t Á E NUU h R A U.S. GEOLOGICAL SURVEY, DEPARTMENT OF THE INTERIOR, U.S.A. M i LA I S a B 1.1.2 PO V TUNDRA DE LA SIERRA DE BROOKS 2.1.9 L A 2.1.8 L O D A a N D Igloolik UL Bristol 6.1.2 3.2.1 c RC I INSTITUTO NACIONAL DE ESTADÍSTICA, GEOGRAFÍA E INFORMATICA (INEGI), MÉXICO TOUNDRA DE LA SIERRA DE BROOKS k A CÍ A S 2.2.6 P e A o 7.1.3 n V N r Bay t z ce Taloyoak rin M i 2.1.7 P F I COMISION NACIONAL PARA EL CONOCIMIENTO Y USO E LA BIODIVERSIDAD (CONABIO), MÉXICO e rles N 2.3.1 Brooks Range/Richardson Mountains o Committee ha S D l R C l 2.2.5 Nettilling e i nd 2.1.5 r 6.1.1 2.1.8 a F Anchorage v 2.1.9 2.1.8 Isl 2.1.7 D INSTITUTO NACIONAL DE ECOLOGIA, SEMARNAP, MÉXICO S e 2.4.1 Bay FOXE 2.1.7 Cu 2.4 SOUTHERN ARCTIC Homer 7.1.3 r I mb 6.1.3 Kugluktuk erla Dawson nd CENTRO DE ECOLOGIA, UNIVERSIDAD NACIONAL AUTONOMA DE MÉXICO ÁRTICO MERIDIONAL Copper BASIN S 7.1.2 Queen Maud Gulf E N ou RCL nd ARCTIQUE MÉRIDIONALE C CI RCTI INSTITUTO DE ECOLOGIA, A.C. XALAPA, MÉXICO 2.4.4 A 2.1.7 Norman C 2.4.1 Amundsen Plains K o AmadjuakLake 2.1.6 7.1.2 odiak Wells pp 7.1.5 R Island er 6.1.4 m i 2.4.4 eat Bear Lake n

2.4.2 Aberdeen Plains Gr e Iqaluit

7.1.5

R 2.1.5 2.1.6 2.4.3 Central Ungava Peninsula and Ottawa and Belcher Islands 3.3.1 2.1.5 Fr 3.2.2 obi

7.1.4 d sh F er B R i v e r n o ay C

u x 2.4.4 Queen Maud Gulf and Chantrey Inlet Lowlands o e

S C ton h I k e mp a G c outha 2.1.5 nn B a m S el 3.0 TAIGA 8.0 EASTERN TEMPERATE FORESTS U o c and Hu L 2.4.2 l Isl dson St T TAIGA F 6.1.5 e rait BOSQUES TEMPLADOS DEL ESTE Aberdeen R Dé G Whitehorse Lake W 2.4.2 tr O n oit 2.1.5 TAÏGA FORÊTS TEMPÉRÉES DE L'EST O F elo s d’ LABRADOR N e Hud L h Baker L o son SEA N G F A T O O L R 3.1 ALASKA BOREAL INTERIOR 8.1 MIXED WOOD PLAINS A 3.2.3 M A R D E L L D S er A ° ALASKA BOREAL INTERIOR F E K iv A 45° 35 PLAINICIES CON BOSQUE MIXTO E A R 2.1.5 A 2.4.2 LABRADORM E R D U ALASKA BORÉAL INTÉRIEUR PLAINES DES FORÊTS MIXTES L 3.4.5 D A 2.4.2 L E S ’ K 7.1.5 Yellowknife Rankin Inlet 3.1.1 Interior Forested Lowlands and Uplands A A v e r Ungava Bay 8.1.1 Eastern Great Lakes and Hudson Lowlands L Juneau i LABRADOR T C A R 1.1.2 S Baie d’ Ungava 3.1.2 Interior Bottomlands K Great Slave A 8.1.2 Lake Erie Lowland A Ri O vi Lake 2.4.3 èr 7.1.4 7.1.5 L e Nain 3.1.3 Yukon Flats 8.1.3 Northern Appalachian Plateau and Uplands i a r d 6.1.6 Dubawnt ine A Y ik B s Kuujjuaq St 3.3.2 e George 3.2 TAIGA CORDILLERA 8.1.4 North Central Hardwood Forests P R N ll ive D S O i r U eu 3.4.4 TAIGA EN CORDILLERA H F A Fort Nelson r TAÏGA EN CORDILLÈRE 8.1.5 Driftless Area e x Nuelt e v 3.4.1 in u l i a s Lake I C R N e O v l S i 3.4.3 l y e 3.2.1 Ogilvie Mountains 8.1.6 S. Michigan/N. Indiana Drift Plains a D R H U B H Inukjuak I E e O 7.1.5 D d

I A t F 7.1.5 habasca H i At A o 3.2.2 Mackenzie and Selwyn Mountains 8.1.7 Northeastern Coastal Zone B r L SmallwoodReservoir t Ketchikan e é C I r ir D la y e Seal R Churchill C a N u a v R E B C i Williston O l’ 8.1.8 Maine/New Brunswick Plains and Hills e 3.2.3 Peel River and Nahanni Plateaus S c à e D a l E R L s m U 2.4.3 I a y 5.4.2 H a ’ 3.4.2 e D d l B Q Wollaston Lake l E e a A U Lake I Réservoir e r t 8.1.9 Maritime Lowlands C E 4.1.1 A t 3.3 TAIGA PLAIN H E B B s N de o i AR f v o N a L Peace TAIGA EN PLANICIE O Prince a t n y N T 7.1.5 Cree i IS T n o a L E ee a B A Rupert k Lake r B

8.1.10 Erie Drift Plain N S 6.2.1 Caniapiscau t y H TAÏGA EN PLAINE D Belcher t S Fort McMurray S i

e R n Reindeer iv Labrador City i c ière Islands r a Lake C l T 8.2 CENTRAL USA PLAINS t hu il d e rch R n 3.3.1 Great Bear Plains R a l St John’s 5.1.4 d

R n

PLANICIES CENTRALES DE EUA Fort Severn o u 5.1.1 a o S m f c a w PLAINES CENTRALES DES É.-U. t s son i e 3.3.2 Hay and Slave River Lowlands r l e a e r nde ière n N v a N e a Riv e Prince b iv r u i a R G e t 5.4.1 4.1.1 -n h n George t e e o Réservoir Réservoir rr v s e 3.4 TAIGA SHIELD 8.2.1 Southeastern Wisconsin Till Plains A Thompson l u T e a ll e L Manicouagan chi l ° ur N r Robert-Bourassa 5.1.3 40 h F e TAIGA EN ESCUDO C Riv ère James E i Anticosti

iv Chisasibi

8.2.2 Huron/Erie Lake Plains R

TAÏGA EN BOUCLIER Bay Island

Queen

La Ronge -PIERR

5.1.3

Charlotte 6.2.2

r re

5.4.2 e f

iv f o SAINT

8.2.3 Central Corn Belt Plains l ce n Sound R u n o

3.4.1 Kazan River and Selwyn Lake Uplands 7.1.6 ki Sept-Îles G re

is w m a Saint-Pier Aki L 4.1.2 and St C et MiquelR Is l u ab F d t o e n t S 8.2.4 Eastern Corn Belt Plains lf re D t ° 3.4.2 La Grande Hills and New Quebec Central Plateau Edmonton 4.1.2 o u é rai 30 G a tro t n r Baie Lac t-L it V er ve ain de A v k ttawapiskat Ri S Cab NC Se is A ot 8.3 SOUTHEASTERN USA PLAINS OUV in James er 3.4.3 Smallwood Uplands W Fort Albany v I ER Sandy 5.1.5 Mistassini i SLA R PLANICIES SURORIENTALES DE EUA O N e D 7.1.5 c Lake Winnipeg n PLAINES DU SUD-EST DES É.-U. e 3.4.4 Ungava Bay Basin and George Plateau C r r R e w 5.3.1 F a 6.2.4 A iv e r lbany L É R s a o Rimouski o t 8.3.1 Northern Piedmont s 3.4.5 Coppermine River and Tazin Lake Uplands Saskatoon S e M A r

5.4.3 8.1.9 P 7.1.7 Calgary 10.1.1 Alma N R 4.0 HUDSON PLAIN 8.3.2 Interior River Valleys and Hills i

A v

Vancouver e River d O r oki n PLANICIE DE HUDSON C J Og R 8.1.9 Moncton Isla uan St le 8.3.3 Interior Plateau de 5.1.2 ab Fu 5.1.6 S le PLAINE D'HUDSON Í ca J Victoria o O 6.2.3 h F Sa wan n Île de Sab 4.1 HUDSON PLAIN 8.3.4 Piedmont skatche Regina Lac 8.1.8 I Lake Fredericton N Nipigon R PLANICIE DE HUDSON C Nipigon iver y y 9.3.1 Lake d Halifax 6.2.5 Québec d O 6.2.5 Manitoba n n 8.3.5 Southeastern Plains O u A PLAINE D'HUDSON 6.2.6 u F F r 8.1.8 5.3.1 f e Seattle e Winnipeg o d C v y e É i i a 8.3.6 Mississippi Valley Loess Plains 11.0 MEDITERRANEAN CALIFORNIA 5.3.1 a 4.1.1 Coastal Hudson Bay Lowland B 7.1.7 R 9.2.2 B C I CALIFORNIA MEDITERRÁNEA Spokane 5.2.3 Bangor

8.3.7 South Central Plains R 4.1.2 Hudson Bay and James Bay Lowlands CALIFORNIE MÉDITERRANÉENNE Thunder Bay La T e c S 9.2.1 d up Montréal O ér Ri 35° 5.2.2 or ieu v des Outaou 5.0 NORTHERN FORESTS 8.3.8 East Central Texas Plains 11.1 MEDITERRANEAN CALIFORNIA 10.1.2 eri r ais N 7.1.8 Great Falls up S Ottawa R CALIFORNIA MEDITERRÁNEA 5.2.1 ive BOSQUES SEPTENTRIONALES River r Portland e Sudbury Miss Á o R k 8.4 OZARK, OUACHITA-APPALACHIAN FORESTS CALIFORNIE MÉDITERRANÉENNE ur a Sault Ste. Marie OTTAWA FORÊTS SEPTENTRIONALES i i L Montpelier v

6.2.10 e L

BOSQUES DE OZARK, OUACHITA Y LOS APALACHES r 7.1.9 C o l u m b i a 5.1 SOFTWOOD SHIELD FORÊTS D'OZARK, OUACHITA ET DES'APPALACHES 11.1.1 California Coastal Sage, Chaparral, and Oak Woodlands Duluth T Fargo Georgian BOSQUE DE CONÍFERAS EN ESCUDO er Bismarck Bay 5.3.1 iv A FORÊT À CONIFÈRES DU BOUCLIER 8.4.1 Ridge and Valley 11.1.2 Central California Valley one R Concord wst 6.2.7 ello 9.3.3 Lake 6.2.9 Y 8.1.1 pe 25° Billings Huron Boston Ca 5.1.1 Athabasca Plain and Churchill River Upland 8.4.2 Central Appalachians 11.1.3 Southern and Baja California Pine-Oak Mountains ke od 6.2.15 La C 6.2.10 8.1.4 io 8.1.7 5.2.1 Lac Toronto ntar Albany 8.5.4 5.1.2 Lake Nipigon and Lac Seul Upland 8.4.3 Western Allegheny Plateau 12.0 SOUTHERN SEMI-ARID HIGHLANDS 8.1.4 O Minneapolis Huron Hartford ELEVACIONES SEMIÁRIDAS MERIDIONALES n 5.3.1 a

8.4.4 Blue Ridge i Buffalo 5.1.3 Central Laurentians and Mecatina Plateau HAUTES TERRES SEMI-ARIDES MÉRIDIONALES Boise 6.2.10 Medford M h 15.0 TROPICAL WET FORESTS S c 8.2.2 5.3.3 n i s i 8.1.2 12.1 WESTERN SIERRA MADRE PIEDMONT ak s 8.1.3 SELVAS CÁLIDO-HÚMEDAS 5.1.4 Newfoundland Island 8.4.5 Ozark Highlands 6.2.8 e i M 6.2.10 Rapid City s 8.5.4

PIEDEMONTE DE LA SIERRA MADRE OCCIDENTAL s e FORÊTS TROPICALES HUMIDES

10.1.3 i 8.2.1 ri

6.2.11 p 8.1.5 e E 10.1.8 k 5.1.5 Hayes River Upland and Big Trout Lake 8.4.6 Boston Mountains PIEDMONT DE LA SIERRA MADRE OCCIDENTALE Eureka Sioux Falls p Milwaukee e ié 5.3.3 a k r New York

6.2.7 Riv i Detroit a É 15.1 HUMID GULF OF MEXICO COASTAL PLAINS AND HILLS e L r 8.1.6 L c a PLANICIE COSTERA Y LOMERÍOS HÚMEDOS DEL GOLFO DE MÉXICO 5.1.6 Abitibi Plains and Riviere Rupert Plateau 8.4.7 Arkansas Valley 12.1.1 Madrean Archipelago 10.1.4 Casper L Cleveland PLAINE CÔTIÈRE ET COLLINES HUMIDES DU GOLFE DU MEXIQUE S a R 8.1.10 c M Chicago 8.2.2 8.5.4 5.2 MIXED WOOD SHIELD 8.4.8 Ouachita Mountains 12.1.2 Piedmonts and Plains with Grasslands, Xeric Shrub, and Oak and Conifer Forests r i i Philadelphia a s v

m s e 15.1.1 Gulf of Mexico Coastal Plain with Wetlands and High Tropical Rain Forest o 9.2.3 r

BOSQUE MIXTO EN ESCUDO e Great Pittsburgh 30° n u

8.4.9 Southwestern Appalachians 12.2 MEXICAN HIGH PLATEAU t 9.3.4 r FORÊT MIXTE DU BOUCLIER o 8.3.1

Salt Lake i

15.1.2 Hills with Medium and High Evergreen Tropical Forest

ALTIPLANICIE MEXICANA Des

Salt Lake 8.5 MISSISSIPPI ALLUVIAL AND SOUTHEAST USA COASTAL PLAINS 8.2.3 Moines WASHINGTON, DC 5.2.1 Northern Lakes and Forests HAUT PLATEAU MEXICAIN 6.2.12 City 8.2.4 Reno Omaha 15.2 PLAIN AND HILLS OF THE YUCATAN PENINSULA

PLANICIES ALUVIALES DEL MISSISSIPPI Y COSTERA DEL SE DE EUA H R Columbus 8.5.1 r Lake Utah Pl ve PLANICIE Y LOMERÍOS DE LA PENÍNSULA DE YUCATÁN A PLAINES ALLUVIALES DU MISSISSIPPI ET DE LA CÔTE SE DES É.-U. at Ri R 5.2.2 Northern Minnesota Wetlands 12.2.1 Hills and Interior Plains with Xeric Shrub and Mesquite Low Forest Tahoe Lake te Indianapolis 8.4.3 W 10.1.5 i e v peak PLAINE ET COLLINES DE LA PÉNINSULE DE YUCATAN San Francisco e 9.2.4 hesa A r Cincinnati C 5.2.3 Algonquin/Southern Laurentians 8.5.1 Middle Atlantic Coastal Plain 13.0 TEMPERATE SIERRAS 8.4.1 y ai Channel I S Riv Ba Kau I a Denver er 15.2.1 Plain with Low and Medium Deciduous Tropical Forest SIERRAS TEMPLADAS n Charleston A J 9.4.1 5.3 ATLANTIC HIGHLANDS 8.5.2 Mississippi Alluvial Plain 7.1.8 o 6.2.14 N SIERRAS TÉMPERÉES a 10.1.6 r Richmond Norfolk q e 15.2.2 Plain with Medium and High Semi-Evergreen Tropical Forest Honolulu u 8.4.2 ELEVACIONES ATLÁNTICAS M i v onte n i 9.4.2 rey St Louis ° 8.5.3 Southern Coastal Plain 13.1 UPPER GILA MOUNTAINS Ba R Kansas City Louisville 20 HAUTES TERRES DE L'ATLANTIQUE y 6.2.13 sas R n 8.3.2 nel I Ka River 15.2.3 Hills with Highda and Medium Semi-Evergreen Tropical Forest han S SIERRAS DE LA CUENCA DEL RÍO GILA hio u wi C O rm Kai 9.4.4 Be B 5.3.1 NorthernL Appalachian and Atlantic Maritime Highlands 8.5.4 Atlantic Coastal Pine Barrens SIERRAS DU BASSIN DU GILA 11.1.2 G A Lake 15.3 SIERRA LOS TUXTLAS 9.2.4 TON N Powell 8.3.3 Raleigh L U Riv SIERRA DE LOS TUXTLAS 9.0 GREAT PLAINS 13.1.1 Arizona/New Mexico Mountains Sa er HAMI S 5.3.3 North CentralD Appalachians 11.1.1 n an Wichita Ju A GRANDES PLANICIES rkansas SIERRA DES TUXTLAS S Las

8.4.5 r 5.4 BOREAL PLAIN GRANDES PLAINES O 13.2 WESTERN SIERRA MADRE Vegas R Knoxville o ive e ha Channel C orad r Charlotte 15.3.1 Los Tuxtlas Sierra with High Evergreen Tropical ForestN PLANICIEAlenuiha BOREAL SIERRA MADRE OCCIDENTAL ol v C i 8.4.4 9.2 TEMPERATE PRAIRIES 10.2.1 Nashville SIERRA MADRE OCCIDENTALE R r A E PLAINE BORÉALE P É e PRADERAS TEMPLADAS v 8.3.4 15.4 EVERGLADES 11.1.3 13.1.1 i É Tulsa R A A 10.1.7 U 5.4.1 Mid-BorealHilo Uplands and Peace-Wabaska Lowlands PRAIRIES TEMPÉRÉES 13.2.1 Sierra Madre Occidental with Conifer, Oak, and Mixed Forests 8.3.3 EVERGLADES C 25° 8.4.6 S EVERGLADES C N Los Angeles Memphis a Columbia Q va O 9.2.1 Aspen Parkland/Northern Glaciated Plains Oklahoma City n 8.5.1 5.4.2 Clear Hills and Western Alberta Upland 13.3 EASTERN SIERRA MADRE 13.1.1 n I I es a 9.4.3 8.4.7 Tenn see h 15.4.1 Southern Florida Coastal Plain F SIERRA MADRE ORIENTAL 8.3.6 T 11.1.1 13.1.1 Albuquerque Amarillo R 9.2.2 Lake Manitoba and Lake Agassiz Plain 8.4.9 Atlanta iv 5.4.3 Mid-Boreal Lowland and Interlake Plain I SIERRA MADRE ORIENTALE Little Rock er N Q Salton i Charleston 15.5 WESTERN PACIFIC PLAIN AND HILLS 8.4.8 p Sea 13.1.1 A 9.2.3 Western Corn Belt Plains San Diego Phoenix R p PLANICIE Y LOMERÍOS DEL OCCIDENTE 6.0 NORTHWESTERN FORESTED MOUNTAINS i U 13.3.1 Sierra Madre Oriental with Conifer, Oak, and Mixed Forests ed Birmingham s L ver PLAINE ET COLLINES DE L'QUEST MONTAÑAS BOSCOSAS NOROCCIDENTALES Tijuana Ri s E i 9.2.4 Central Irregular Plains Gila er T MONTAGNES FORESTÈES DU NORD-QUEST 13.4 TRANSVERSAL NEO-VOLCANIC SYSTEM Riv Lubbock s Savannah

s A i 15.5.1 Nayarit and Sinaloa Plain with Low Thorn Tropical Forest SISTEMA NEO-VOLCÁNICO TRANSVERSAL ver

9.3 WEST-CENTRAL SEMI-ARID PRAIRIES 10.2.2 Ri M 6.1 BOREAL CORDILLERA 13.1.1 9.4.1 9.4.5 SYSTÈME NÉO-VOLCANIQUE TRANSVERSAL CORDILLERA BOREAL PRADERAS SEMIÁRIDAS CENTRO-OCCIDENTALES 11.1.3 Tucson a 15.5.2 Jalisco/Nayarit Hills and Plains with Medium Semi-Evergreen Tropical Forest Shreveport m ° PRAIRIES SEMI-ARIDES CENTRE-OCCIDENTALES P Dallas 8.5.2 a 15 e Jackson b CORDILLÈRE BORÉAL c 13.4.1 Interior Plains and Piedmonts with Grasslands and Xeric Shrub a 8.3.5 o l s 15.6 COASTAL PLAIN AND HILLS OF SOCONUSCO 8.3.6 A 12.1.1 9.4.6 8.3.7 9.3.1 Northwestern Glaciated Plains 6.1.1 Interior Highlands and Klondike Plateau El Paso 9.4.7 PLANICIE COSTERA Y LOMERÍOS DEL SOCONUSCO 13.4.2 Hills and Sierras with Conifer, Oak, and Mixed Forests Jacksonville G Ciudad Juárez R Nogales iv PLAINE CÔTIÈRE ET COLLINES DU SOCONUSCO O e Tallahassee 6.1.2 Alaska Range 9.3.3 Northwestern Great Plains 13.5 SOUTHERN SIERRA MADRE r L 15.6.1 Coastal Plain and Hills with High and Medium-High Evergreen Tropical Forest and Wetlands 9.3.4 Nebraska Sand Hills SIERRA MADRE DEL SUR F 8.5.3 6.1.3 Copper Plateau O 8.3.8 Apalachee SIERRA MADRE DU SUD 11.1.1 Isl a Guadal u Bay pe Isl 9.4.6 MX a Ángel 9.4 SOUTH CENTRAL SEMI-ARID PRAIRIES de la Guar ER ° 6.1.4 Wrangell and St. Elias Mountains da New Orleans NC 20 13.5.1 Sierras of Jalisco and Michoacán with Conifer, Oak, and Mixed Forests CA PRADERAS SEMIÁRIDAS CENTRO-MERIDIONALES DU Hermosillo UE Isla San IQ PRAIRIES SEMI-ARIDES CENTRE-MÉRIDIONALES T os Houston OP 6.1.5 Watson Highlands Bahía i burón ch Tampa TR 13.5.2 Sierras of Guerrero and Oaxaca with Conifer, Oak, and Mixed Forests n Antonio

Sebastián D o R 9.4.7 11.1.1 C i o E Vizcaíno 14.3.2

o R 9.4.1 High Plains 6.1.6 Yukon-Stikine Highlands/Boreal Mountains and Plateaus í í 13.6 CENTRAL AMERICAN SIERRA MADRE AND CHIAPAS HIGHLANDS o G ER R 9.5.1 Lake C N i r CÁ E SIERRA MADRE CENTROAMERICANA Y ALTOS DE CHIAPAS u Chihuahua B a O D q n IC 9.4.2 Central Great Plains a r Okeechobee ÓP 6.2 WESTERN CORDILLERA a d TR Y SIERRA MADRE D'AMÉRIQUE CENTRALE ET HAUTES MONTAGNES DU CHIAPAS v e CORDILLERA OCCIDENTAL 10.2.3 o

BAHAMAS 9.4.3 Southwestern Tablelands AU CORDILLÈRE OCCIDENTALE ío 10.2.4 15.4.1 NASS 13.6.1 Central American Sierra Madre with Conifer, Oak, and Mixed Forests C R 9.6.1 CER 14.3.1 Corpus Christi I C O Miami CAN A O F M E X OF 9.4.4 Flint Hills G U L F OPIC 6.2.1 Skeena-Omineca-Central Canadian Rocky Mountains L TR 13.6.2 Chiapas Highlands with Conifer, Oak, and Mixed Forest I 13.2.1 F e 10.2.2 t 9.4.5 Cross Timbers r nd 6.2.2 Chilcotin Ranges and Fraser Plateau O e s a 14.0 TROPICAL DRY FORESTS u urk 10° F T R icos I C O Ca s 9.4.6 Edwards Plateau SELVAS CÁLIDO-SECAS N ío M É X Key West da and 6.2.3 Columbia Mountains/Northern Rockies R Brownsville O D E lori Isl B I Río Pesqu G O L F of F a G FORÊTS TROPICALES SÈCHES er traits rid GB la FR ANTIGUA Y A 14.3.1 ia S lo nguil rtin L R a F K A a n N my F BARBUDA Monterrey Matamoros e l TUR rte élé 9.4.7 Texas Blackland Prairies o d e B Saint-M a th 6.2.4 Canadian Rockies Torreón Saltillo strech rid G ar ANTIGUA-ET- 14.1 DRY GULF OF MEXICO COASTAL PLAINS AND HILLS E Flo GRAND Sint Ma ANTIGUA de Saint-B E BARBUDA roit British R AND S Dét irgin Islands N’ PLANICIES COSTERAS Y LOMERÍOS SECOS DEL GOLFO DE MÉXICO e V BARBUDAH 9.5 TEXAS-LOUISIANA COASTAL PLAIN Culiacán Laguna Madr T JO 6.2.5 North Cascades E BASSETER S B U A es Virgin Islands G PLANICIE COSTERA DE TEXAS Y LOUISIANA PLAINES CÔTIÈRES ET COLLINES SÈCHES DU GOLFE DU MEXIQUE La Paz 14.3.2 X I Q N DOMINICAN United Stat at M E LA HABA REPÚBLICA US R ° 12.1.2 D U REPUBLIC Montserr F 15 6.2.6 Cypress Upland PLAINE DE LA CÔTE DU TEXAS-LOUISIANE 14.6.1 F E DOMINICANA upe G O L AN elo 14.1.1 Coastal Plain with Low Tropical Deciduous Forest C U uad Durango B SAN JU SAINTSAINT KITTS KITTS AND NEVISY NEVIS G 9.5.1 Western Gulf Coastal Plain A TO O SAINT-KITTS-ET-NEVIS L 6.2.7 Cascades 14.6.2 SAN RIC P E 14.1.2 Hills and Sierra with Low Tropical Deciduous Forest and Oak Forest a O E S DOMINICA l DOMINGO T S AU a ER S Q DOMINIQUEE Mazatlán R Y a n i o o l U U P E ROS ío 14.1.2 u s p ñ P U FR 6.2.8 Eastern Cascades Slopes and Foothills 9.6 TAMAULIPAS-TEXAS SEMIARID PLAIN Cabo San Lucas c H i p a E E R que C a T 14.2 NORTHWESTERN PLAIN OF THE YUCATAN PENINSULA 13.2.1 14.1.2 t HAITI Ñ A artini PLANICIE SEMIÁRIDA DE TAMAULIPAS Y TEXAS a an G L a E s I T M Zacatecas C n R E A N a al C A E S PLANICIE NOROCCIDENTAL DE LA PENÍNSULA DE YUCATÁN n d ha T E HAITÍ S T S 6.2.9 Blue Mountains PLAINE SEMI-ARIDE DE TAMAULIPAS-TEXAS Tame a e n R s l Y ne A S A I CASTRIE í 14.1.1 d u l N E REPÚBLIQUE E A L PLAINE NORD-OUEST DE LA PÉNINSULE DU YUCATAN u c T L N at I L HAÏTI L L SAINT LUCIA BARBADOS Tampico Y án L E U-PRINC DOMINICAINE I N BARBADE Tepic u S -A T E SANTA LUCÍA OWN 6.2.10 Middle Rockies Islas 14.1.2 c RT T T DGET 9.6.1 Southern Texas Plains/Interior Plains and Hills with Xerophytic Shrub and Oak Forest Aguascalientes at PO N I SAINTE-LUCIEBRI 15.5.1 o a S uc Cancún n A I L N 14.2.1 Northwestern Yucatan Plain with Low Tropical Deciduous Forest Marias Pán S L OW ío E L ST R Mérida s G R D L G d A N A KIN 14.5.2 lan E 6.2.11 Klamath Mountains 10.0 NORTH AMERICAN DESERTS Is N D A 13.2.1 yman E S R S 14.2.1 Ca A N G S 14.3 WESTERN PACIFIC COASTAL PLAIN, HILLS AND CANYONS León 13.3.1 GB T I L L E S C A R A Ï B E SAINT VINCENT DESIERTOS DE NORTEAMÉRICA 15.5.2 TON A S R D S AND THE GRENADINES 6.2.12 Sierra Nevada PLANICIE COSTERA, LOMERÍOS Y CAÑONES DEL OCCIDENTE 15.2.1 KINGS M E DESÉRTS DE L'AMÉRIQUE DU NORD Puerto Vallarta 15.1.2 TOWN SAN VICENTE Y 13.4.2 12.2.1 sión LAS GRANADINAS 5° PLAINE CÔTIÈRE, COLLINES, ET CANONS OCCIDENTAUX E la Ascen GEORGE SAINT-VINCENT- Guadalajara B A H Í A D Bahía de ET-GRENADINES 13.5.1 6.2.13 Wasatch and Uinta Mountains 10.1 COLD DESERTS Campeche GRENADA 15.2.2 C JAMAICA GRANADA Río Ler a GRENADE DESIERTOS FRIOS 14.3.1 Sinaloa Coastal Plain with Low Thorn Tropical Forest and Wetlands Isl a San Be m A E’S nedic to E JAMAÏQUE G TRINIDAD A M P E C H R AND 6.2.14 Southern Rockies 13.4.2 13.4.1 14.1.2 C T GEOR TOBAGO DESÉRTS FROIDS IS Morelia I E S S LAS R B L L 14.3.2 Sinaloa and Sonora Hills and Canyons with Xeric Shrub and Low Tropical Deciduous Forest Isl EVILLA Cd. de B E L E S S E T I a Clarió GIGED Isl Laguna de B R A N T A N n O a Socor r MÉXICO Veracruz Chetumal E I I L L E S S TRINIDAD Y 6.2.15 Idaho Batholith o Puebla A R T I T E OF 10.1.1 Thompson-Okanogan Plateau Terminos 15.2.3 A P E Q U I L L A S P E RT IN TABAGO 10° MX 14.5.2 15.1.1 N C E Ñ A S A N T PO PA 14.4 INTERIOR DEPRESSIONS 15.3.1 R S S A NL TRINITÉ-ET- 13.5.1 14.4.3 E M n ) 7.0 MARINE WEST COAST FOREST DEPRESIONES INTERMONTANAS Río B till e te n TOBAGO 10.1.2 Columbia Plateau als R A An ar e as ío se d a BOSQUE COSTERO OCCIDENTAL 15.1.1 BELIZE nd , Sint Ma Isla rit DÉPRESSIONS INTERMONTAGNES rla çao rga de ura a 14.4.1 Ne , C re M FORÊT MARITIME DE LA CÔTE OCCIDENTALE 10.1.3 Northern Basin and Range re E AN AD ao Bonai V o BELMOP (Bonai T uraç 14.4.1 Balsas Depression with Low Tropical Deciduous Forest and Xerophytic Shrub Region boundary Level I alc 13.5.2 U C c s ba ORANJES 7.1 MARINE WEST COAST FOREST eta u s Aru NL e P 15.1.2 m ra 10.1.4 Wyoming Basin Límite de regiones Nivel I Bahía d a BELICE u NL TAD Oaxaca Tuxtla Gutiérrez ci nd BOSQUE COSTERO OCCIDENTAL 13.5.2 nt o WILLEMS 14.4.2 Chiapas Depression with Low Deciduous and Medium Semi-Deciduous Tropical Forest Limite de régions Niveau I a e H 14.4.3 13.6.2 d FORÊT MARITIME DE LA CÔTE OCCIDENTALE Acapulco fo CAS 10.1.5 Central Basin and Range 14.5.1 ol A 14.4.3 Valleys and Depressions with Xeric Shrub and Low Deciduous Forest 14.4.2 G CAR Region boundary Level II 14.5.2 Golfo de 7.1.1 Ahklun and Kilbuck Mountains 10.1.6 Colorado Plateaus S Límite de regiones Nivel II A Venezuela o 14.5 SOUTHERN PACIFIC COASTAL PLAIN AND HILLS Golfo de R a oc Limite de régions Niveau II GUATEMALA U alenci rin 7.1.2 Alaska Peninsula Mountains 10.1.7 Arizona/New Mexico Plateau Tehuantepec 13.6.1 D V O PLANICIE COSTERA Y LOMERÍOS DEL PACÍFICO SUR 15.6.1 N PLAINE CÔTIÈRE ET COLLINES DU PACIFIQUE SUD O PA Maracaibo 7.1.3 Cook Inlet 10.1.8 Snake River Plain Region boundary Level III H TEGUCIGAL 0° GUATEMALA 14.5.1 Tehuantepec Canyon and Plain with Low Tropical Deciduous Forest and Low Thorn Forest Límite de regiones Nivel III 7.1.4 Pacific Coastal Mountains 10.2 WARM DESERTS Limite de régions Niveau III Lago Scale / Escala / Échelle VADOR a de DESIERTOS CÁLIDOS 14.5.2 South Pacific Hills and Piedmonts with Low Tropical Deciduous Forest SAN SAL anquill a Barr Maracaibo 7.1.5 Coastal Western Hemlock-Sitka Spruce Forests International boundary 1 : 10 000 000 sec re DESÉRTS CHAUDS Fon pu ° EL SALVADOR lfo de A 5 14.6 SIERRA AND PLAINS OF EL CABO Go NICARAGUA Limite internacional VENEZUELA 7.1.6 Pacific and Nass Ranges 10.2.1 Mojave Basin and Range SIERRA Y PLANICIES DEL CABO Limite internationale 100 0 100 200 300 400 500 km o A Lago de í MANAGU R 7.1.7 Strait of Georgia/Puget Lowland SIERRA ET PLAINES D'EL CABO Nicaragua o 10.2.2 Sonoran Desert í Province, state, territory R 100 0 100 200 300 mi 14.6.1 Los Cabos Plains and Hills with Low Tropical Deciduous Forest and Xeric Shrub 7.1.8 Coast Range 10.2.3 Baja Californian Desert l d

a e P a Dividing line (Canada & Kalaallit Nunaat) Can anam COMMISSION FOR 14.6.2 La Laguna Mountains with Oak and Conifer Forests COSTA á n Lambert Azimuthal Equal Area Projection, centred at 45°N 100°W. P e 7.1.9 Willamette Valley SAN JOSÉ A N l ENVIRONMENTAL COOPERATION 10.2.4 Chihuahuan Desert Á A COLOMBIAa ANAM d Proyección Lambert de Azimut y área constante, centrado en 45°N 100°O. P M g a Á a y o M COMISION PARA LA c RICA Île Projection équivalente de Lambert, centrée à 45°N 100°O. i Clipp erton FR COOPERACION AMBIENTAL N A BRAZIL e M d A o A N f P Golfo de l o COMMISSION DE COOPÉBRASILRATION o ín í G Panamá R Medell ENVIRONNEMENTALE COLOMBIE BRÉSIL

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Printed in 2006, at INEGI, Aguascalientes, Mexico. Impreso en 2006, a INEGI, Aguascalientes, México. Imprimé en 2006, à INEGI, Aguascalientes, Mexique.