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CEGL000451 Pseudotsuga menziesii / Quercus arizonica Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir / Arizona White Oak Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This highly diverse Madrean forest association is restricted to the central highlands of Arizona. It is specifically known from the Bradshaw Mountains, the Sierra Ancha, and along the Mogollon Rim. It also extends into New Mexico. Stands typically occur on cool, dry mesic sites across a variety of land forms. Aspects are southerly, and elevations range from 1770 to 2135 m (5800-7000 feet). Soils tend to be rocky and skeletal. Pseudotsuga menziesii and Pinus ponderosa are codominants; Abies concolor is absent or accidental. Juniperus deppeana is a constant species but a minor component of the subcanopy. The shrub layer is dominated by Quercus arizonica, with Quercus gambelii and Quercus emoryi poorly represented; Quercus hypoleucoides is absent. The herb layer is sparse and characterized by scattered bunchgrasses, including Koeleria macrantha, Muhlenbergia longiligula, and Poa fendleriana. The most constant forbs are Comandra umbellata, Pseudocymopterus montanus, and Packera neomexicana.
Diagnostic Characteristics: Quercus arizonica is well-represented (>5% canopy coverage). Pseudotsuga menziesii is present, at generally more than 10 trees per acre. Abies concolor is absent or accidental. Juniperus deppeana is a subcanopy climax species.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Pseudotsuga menziesii and Pinus ponderosa are codominants; Abies concolor is absent or accidental. Juniperus deppeana is a constant species but a minor component of the subcanopy. The shrub layer is dominated by Quercus arizonica, with Quercus gambelii and Quercus emoryi poorly represented; Quercus hypoleucoides is absent. The herb layer is sparse and characterized by scattered bunchgrasses, including Koeleria macrantha (= Koeleria pyramidata), Muhlenbergia longiligula, and Poa fendleriana. The most constant forbs are Comandra umbellata, Pseudocymopterus montanus, and Packera neomexicana (= Senecio neomexicanus).
Dynamics: Oak sprouting is prolific and rapid after a fire. Arctostaphylos spp. and Ceanothus fendleri can be important shrubs after a fire. Quercus arizonica can survive low-intensity fires and usually resprouts from the roots if the top is killed. Presettlement mean fire frequency intervals for one area were reported between 7 and 10 years (Baisan and Swetnam 1990).
Environmental Description: This highly diverse Madrean forest association is restricted to the central highlands of Arizona. It is specifically known from the Bradshaw Mountains, the Sierra Ancha, and along the Mogollon Rim. It also extends into New Mexico. Stands typically occur on cool, dry mesic sites across a variety of land forms. Aspects are southerly, and elevations range from 1770 to 2135 m (5800-7000 feet). Soils tend to be rocky and skeletal.
Geographic Range: This association is restricted to the central highlands of Arizona. It is specifically known from the Bradshaw Mountains, the Sierra Ancha, and along the Mogollon Rim. It also extends into New Mexico.
Nations: US
States/Provinces: AZ, NM
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688075
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3?
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Nd Madrean-Balconian Forest & Woodland Division | D060 | 1.B.1.Nd |
| Macrogroup | 1.B.1.Nd.2 Chihuahuan Pine - Douglas-fir / Silverleaf Oak Madrean Montane Forest & Woodland Macrogroup | M011 | 1.B.1.Nd.2 |
| Group | 1.B.1.Nd.2.b Douglas-fir - Southwestern White Pine / Silverleaf Oak Forest & Woodland Group | G202 | 1.B.1.Nd.2.b |
| Alliance | A3108 Douglas-fir / Silverleaf Oak - Netleaf Oak Forest & Woodland Alliance | A3108 | 1.B.1.Nd.2.b |
| Association | CEGL000451 Douglas-fir / Arizona White Oak Forest | CEGL000451 | 1.B.1.Nd.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pseudotsuga menziesii / Quercus arizonica (Stuever and Hayden 1997a)
= Pseudotsuga menziesii / Quercus arizonica Habitat Type (Muldavin et al. 1994b)
= Pseudotsuga menziesii / Quercus arizonica Habitat Type (Muldavin et al. 1994b)
- Baisan, C. H., and T. W. Swetnam. 1990. Fire history on a desert mountain range: Rincon Mountain Wilderness, Arizona, U.S.A. CCanadian Journal of Forestry Research 20:1559-1569.
- Bassett, D., M. Larson, and W. Moir. 1987. Forest and woodland habitat types of Arizona south of the Mogollon Rim and southwestern New Mexico. Edition 2. USDA Forest Service, Southwestern Region, Albuquerque, NM.
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Muldavin, E. H., R. L. DeVelice, and F. Ronco, Jr. 1996. A classification of forest habitat types of southern Arizona and portions of the Colorado Plateau. General Technical Report RM-GTR-287. USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO. 130 pp.
- Muldavin, E., M. P. Moreno, J. Thomson, and P. Mehlhop. 1994b. A vegetation map for White Sands National Monument. Final report prepared for White Sands National Monument: Alamogordo, NM, by New Mexico Natural Heritage Program.
- Muldavin, E., Y. Chauvin, and G. Harper. 2000b. The vegetation of White Sands Missile Range, New Mexico: Volume I. Handbook of vegetation communities. Final report to Environmental Directorate, White Sands Missile Range. New Mexico Natural Heritage Program, University of New Mexico, Albuquerque. 195 pp. plus appendices
- Pavek, D. S. 1994c. Quercus arizonica. In: Fire Effects Information System [Online]. USDA Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). [http://www.fs.fed.us/database/feis/]
- Stuever, M. C., and J. S. Hayden. 1997a. Plant associations of Arizona and New Mexico, edition 3. Volume 1: Forests. USDA Forest Service, Southwestern Region. Habitat Typing Guides. 291 pp.
- USFS [U.S. Forest Service]. 1987b. Forest and woodland habitat types (plant associations) of Arizona south of the Mogollon Rim and southwestern New Mexico. USDA Forest Service, Southwestern Region, Albuquerque, NM. Second edition, 168 pp. plus insert.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.