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Calocedrus decurrens - Pinus jeffreyi - Abies lowiana Forest Macrogroup | NatureServe Biotics 2019
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Name: Calocedrus decurrens - Pinus jeffreyi - Abies lowiana Forest Macrogroup Reference: NatureServe Biotics 2019 Description: This macrogroup includes dry to mesic foothill and montane Jeffrey pine - ponderosa pine woodlands; Sierran mixed conifer woodlands dominated by <i>Abies lowiana, Calocedrus decurrens, Pinus jeffreyi, Pinus lambertiana, Pinus ponderosa var. benthamiana, Pinus ponderosa var. washoensis, Pseudotsuga menziesii var. menziesii</i>, or <i>Sequoiadendron giganteum</i>; mixed conifer woodlands tolerant of serpentine soils; and the less well-studied forests on the east side of the Sierra Nevada, on the Modoc Plateau and in the Warner Mountains that are dominated by <i>Pinus monticola</i> and/or <i>Abies lowiana</i> where <i>Pinus ponderosa</i> is often present, but <i>Pseudotsuga menziesii</i> is notably absent. This macrogroup is the most extensive forest in California covering 15% of the state and includes the "Midmontane forest "and "Sierran East-side and Baja California Montane forests" categories as described by Barbour and Billings (2000). It covers a broad range of elevation and latitude and for the most part occurs in relatively dry habitats. These are forests and woodlands of foothill and lower montane elevations of the southern Cascade Range, Klamath Mountains, Modoc Plateau, Sierra Nevada, and Peninsula and Transverse ranges. Historically, frequent low-intensity fires (approximately every 10-30 years) maintained many of these forests. Due to fire suppression, the majority of these forests now have closed canopies, whereas historically fires maintained an open woodland structure.  Accession Code: urn:lsid:vegbank.org:commConcept:40451-{2FFD2644-8F70-4FD4-AF1C-6FC006420D9C} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 15-Oct-2014 to: ongoing
	status: accepted Community's Parent: Pseudotsuga menziesii - Tsuga heterophylla - Tsuga mertensiana Vancouverian Forest & Woodland Division This Community's Level: Macrogroup This Community's Children: Show/Hide   Calocedrus decurrens - Pinus lambertiana - Abies lowiana Forest & Woodland Group		Names:   UID: ELEMENT_GLOBAL.2.835947 NatureServe Explorer   Code: M023   Scientific: Calocedrus decurrens - Pinus jeffreyi - Abies lowiana Forest Macrogroup