16 Wetland Assessment Criteria 



eOUN0ARl£S Of 



MAHINE *ND eSTu*RlNE 



PROVINCES 



PHOvlnCt 



•Domains, Divisions. Provinces and Sections used on Bailey's U976) map and described in deUil in Bailey (1978). Highland 

 ecoregions are designated. M mountain. P plateau, and A altiplano. 



1000 PoUr 



1200 Tundra 



ISIO ArcticTundra 

 1220 B«ring Tundra 

 Ml210Brt>obi Rar\ge 

 nOOSubarcLK 



1320 Yukon Forest 

 M13I0 AUsk«FUn^ 

 2000 Humid Temp«rat« 



2100 WarmCofiLittenUl 



21 10 Laurentian Miiad Fomt 

 2111 Sprucv^FlrPoroat 

 21)2 Northern Hardwooda-Fir Foraat 

 21 13 Northern Hard»ooda Foreat 

 31 1 4 Northern H ard wood • -Spruce Fofest 

 M21IOColumbia Foreat 



M2ni DouglaaTir Foreat 

 M21 12 Cedar Hemlock DougUsfir For«al 

 2200 HolConlinenUl 



2210 Caalern Deciduoua Forest 



221 1 Miied Meaophytk For««t 



2212 B««ch-MapU Foraat 



2213 Maple^Uaaawood Formal + OakSavanr 

 22H AppalachUnOak Foraat 



2216 Oak Htckorr Formt 

 2300 Subtropical 



23IOOui«rCoagUl Plain Foreat 



2311 DMCh-Sweelfum Magnolia PineOak 



2312 Southern Fioodplaln Forest 

 2320 Southeaatem Mixed Foreat 



2000 HumJd Temperate 

 2400 Marine 



2410 Willameiie-Piigel Foreat 

 M2410 PaclfK Foreat (In conierrmnouaU Si 



M2411 S>tka Spnjc«-C«dar Hemlock Form 

 M2412 Redwood Forest 

 M241 scalar Hemlock DougUatir Foreat 

 M24)4 Catifomia Miied Evergreen Forest 

 M2416Sdver(ir Douglas fu Foreat 

 M 24 1 Padtk Foraat (In Alaakal 



2600 Pralria 



2610 Prairie ParkUnd 



2SI1 Oak Htckory Blueat^m ParkUnd 



3612 Oak + Bluealera Parkland 

 2620 Praine Bruahland 



2621 Meaquit«-Buf(aloGr«as 



3622 JuruperOak-Mea<)uite 



2623 Meaquite- Acacia 

 2630TaU-CraaaPratne 



2631 Bluest«Ri Prairw 



2632 Whealgraaa BlueatMi Needlegraas 



2633 Bluealem-Crama Prau^ 



2600 Mediterranean iDry sumcncT Sublropicell 

 26iOCaLlornia Grass la r>d 

 MZfilOSterran Foreat 

 MZ620 Cablomla Chaparral 

 3000 Dry 



3100 Steppe 



31 10 Grvat Plaina-Shortgraaa Prairie 



3111 Grama-Needlegraaa WheaLgraaa 



31 12 Wheatgraaa Needlcgraaa 

 SllSCramaBurialoGraaa 



3000 Dry 



3100Sl«ppe 



M3t 10 Kocky MounUin Foreat 



M3111 Grand lirDouKUitir K.irv.l 

 M3II2 Douglas fir Forest 

 M3I13 Ponderosa Pin»-l)ougl«(i fir Foreat 

 3120 PalouaeGrasBlaml 

 M3120 Upper Gila MounUins Forest 

 3130 I ntermounuin Sagebrush 



3131 Sagebruah Wheal^craBB 



3132 LahontanSaltbush-Grfssewood 



3133 Great Uasm Sagebnjsh 



3134 Bonn«vill«Sallbu»h-Gr<:Dsr»ood 



3135 Ponderoaa Shrub Forrnt 

 P3130 Colorado Plaloau 



P313I Juniper Pinyon WfXKlUind t 



Sagrbruah Sallbuih Mouic 

 P3l32Grama'C;al1rla Stp)i|M- -• Jumper 

 Pinyon W.HHJtmidMoss.r 

 3140Mi-iK:an highland Shrub Strpp)- 

 A3M0W)om.ng llaam 



A3141 Wheatgrasa NardltigTans Sagebrush 

 A3142 Sagebruah Wh«tgT«s« 

 3200 Desert 



3310ChihuahuanDe«ert 

 3211 Grama Toboaa 

 3212TarbuBh-Creoaoleltush 

 3220 American Deaeri 



3221 CreoaoLeUush 



3222 Creoaole Bush 11 ur Sage 

 40«0 Humid Tropical 



4100 Savanna 



4110 KvcfgUdes 

 4200 Kainlor^Bl 



M4210HBwauanlaland« 



Figure 1: Ecoregions of the United States after Bailey (1976) 

 with the addition of 10 marine and estuarine 

 provinces (Taken from Cowardin et al. 1979, page 

 27). 



