Identification and mapping of habitat types in the vicinity of Mount Tolman in eastern Washington Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/gf06g7355

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  • Studies were conducted in the vicinity of Mount Tolman on the Colville Indian Reservation in eastern Washington in order to identify vegetation habitat types of the area. After field studies were completed, Daubenmire's keys to habitat types of eastern Washington (1968, 1970) were used to determine habitat types of the area. On the basis of sampling results, eleven habitat types were identified and described. This information was used in conjunction with aerial photointerpretation to prepare a vegetation map. Daubenmire's baseline studies, from which the habitat type keys were developed, were conducted in pristine climax stands. The Mount Tolman study area vegetation has been subjected to human disturbance for many years. Agriculture, grazing, logging, mining, and urbanization have all had an impact on the natural vegetation of the area. It was of interest to see at what levels of disturbance it would still be possible to determine habitat types from remnant native vegetation. Steppe habitat types identified were Agropyron spicatum/Festuca idahoensis and Purshia tridentata/Agropyron spicatum. Very little vegetation representative of these habitat types remained in the study area because of conversion of most open land to either agricultural crops or pasture. Most steppe portions of the study area had been heavily grazed and supported disclimax vegetation dominated by Bromus tectorum and other weedy species. Four Pinus ponderosa habitat types were identified. They were Pinus ponderosa/Agropyron spicatum, Pinus ponderosa/Festuca idahoensis, Pinus ponderosa/Purshia tridentata, and Pinus ponderosa/Symphoricarpos albus. Together they composed 43 percent of the study area. Three other forest habitats, Pseudotsuga menziesii/Symphoricarpos albus, Pseudotsuga menziesii/Physocarpus malvaceus, and Abies grandis/Pachistima myrsinites, occupied 30 percent of the study area. Two riparian habitat types occurred consistently in the creek drainages. One of these was Crataegus douglasii/ Symphoricarpus albus, both the Crataegus phase, and Populus tremuloides phase; the other was Alnus incana/Lysichitum americanum. Using Daubenmire's keys, coupled with information about seral communities and successional patterns, proved to be effective in determining habitat types in all but the most disturbed sites.
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  • File scanned at 300 ppi (Monochrome, 256 Grayscale, 24-bit Color) using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR. Plate: Master file scanned at 600 dpi (8-bit grayscale) using SlmartLF 1.3.05 on a Paradigm ImagePRO GxT 42 HD (OEM version of ColortracSmartLF Bx 42). Image manipulated by SmartLF1.3.05.
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  • description.provenance : Made available in DSpace on 2013-09-20T17:11:16Z (GMT). No. of bitstreams: 2 WilsonMaryLoverna1982.pdf: 3572837 bytes, checksum: 788691790f2eebb733479cba5ffe6b39 (MD5) Plate 1.jpg: 3554782 bytes, checksum: 480c5a35124bc8e710360638e368d55b (MD5) Previous issue date: 1982-03-08
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