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Author : Kimball T. Harper
Publisher : Unknown
Page : 36 pages
File Size : 44,9 Mb
Release : 1985
Category : Forest ecology
ISBN : MINN:31951D03001316Z
Author : Kimball T. Harper
Publisher : Unknown
Page : 0 pages
File Size : 44,5 Mb
Release : 1985
Category : Forest management
ISBN : OCLC:911665611
Author : Scott R. Abella
Publisher : Unknown
Page : 40 pages
File Size : 40,5 Mb
Release : 2008
Category : Forest management
ISBN : IND:30000125311047
Gambel oak (Quercus gambelii) is a key deciduous species in southwestern ponderosa pine (Pinus ponderosa) forests and is important for wildlife habitat, soil processes, and human values. This report (1) summarizes Gambel oak's biological characteristics and importance in ponderosa pine forests, (2) synthesizes literature on changes in tree densities and fire frequencies since Euro-American settlement in pine-oak forests, (3) suggests management prescriptions for accomplishing various oak management objectives (for example, increasing diameter growth or acorn production), and (4) provides an appendix containing 203 Gambel oak literature citations organized by subject. Nine studies that reconstructed Gambel oak density changes since settlement in the late 1800s reported that densities of small oaks have escalated, with increases ranging from 4- to more than 63-fold. A possible argument for passive oak management, that overall oak abundance has decreased, is not supported by published research. Manipulating oak growth forms is one of the main means for managing oak and ecosystem components affected by oak. Published research has classified variants of three basic oak growth forms: shrubby thickets of small stems, pole-sized clumps, and large trees. Burning and cutting constitute major prescriptions for manipulating these growth forms, whereas pine thinning has most consistently increased oak diameter growth for promoting large oaks. Because of their high ecological value, large, old oaks should be retained in any management prescription. Sufficient research has been published on which to base some oak management prescriptions, but additional research on poorly understood aspects of oak's ecology is needed to refine and improve oak management.
Author : Michael G. Harrington
Publisher : Unknown
Page : 12 pages
File Size : 49,6 Mb
Release : 1987
Category : Allelopathic agents
ISBN : MINN:31951D02889446U
Author : Ronald L. Mauk
Publisher : Unknown
Page : 888 pages
File Size : 54,6 Mb
Release : 1984
Category : Electronic
ISBN : STANFORD:36105009851069
Author : Anonim
Publisher : Unknown
Page : 690 pages
File Size : 48,8 Mb
Release : 1984
Category : Forests and forestry
ISBN : UOM:39015010048711
Author : Charles A. Troendle,David F. Van Haverbeke,George R. Hoffman,Glenn LeRoy Crouch,James A. Tiedeman,Michael G. Harrington,Richard E. Francis,Rick B. Hopkins,Robert R. Alexander,Robert Stottlemyer,Thomas E. Hinds
Publisher : Unknown
Page : 330 pages
File Size : 42,8 Mb
Release : 1986
Category : Allelopathic agents
ISBN : OSU:32435055890024
Author : Anonim
Publisher : Unknown
Page : 240 pages
File Size : 41,8 Mb
Release : 1992
Category : Riparian ecology
ISBN : MINN:31951D03001301C
Author : Anne F. Bradley,L. Jack Lyon,Warren P. Clary
Publisher : Unknown
Page : 360 pages
File Size : 41,8 Mb
Release : 1992
Category : Elk
ISBN : OSU:32435055890115
Author : Peter F. Ffolliott
Publisher : Unknown
Page : 236 pages
File Size : 48,5 Mb
Release : 1992
Category : Forest ecology
ISBN : MINN:31951D02977861R
Author : Anonim
Publisher : Unknown
Page : 466 pages
File Size : 46,5 Mb
Release : 1986
Category : Forests and forestry
ISBN : UCBK:C031907761
Author : Anonim
Publisher : Unknown
Page : 160 pages
File Size : 50,8 Mb
Release : 1998
Category : Forests and forestry
ISBN : UCBK:C112255231
Author : Anonim
Publisher : Unknown
Page : 336 pages
File Size : 51,9 Mb
Release : 1993
Category : Forest regeneration
ISBN : MINN:31951D03001016B
Author : David L. Loftis,Charles E. McGee
Publisher : Unknown
Page : 338 pages
File Size : 54,8 Mb
Release : 1993
Category : Forest management
ISBN : UOM:39015027111460
Author : Andreas Leidolf
Publisher : Unknown
Page : 36 pages
File Size : 40,7 Mb
Release : 2000
Category : Birds
ISBN : MINN:31951D030000475
Gambel oak (Quercus gambelii Nutt.) covers 3.75 million hectares (9.3 million acres) of the western United States. This report synthesizes current knowledge on the composition, structure, and habitat relationships of gambel oak avian communities. It lists life history attributes of 183 bird species documented from gambel oak habitats of the western United States. Structural habitat attributes important to bird-habitat relationships are identified, based on 12 independent studies. This report also highlights species of special concern, provides recommendations for monitoring, and gives suggestions for management and future research.