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Historical jigsaw puzzles: piecing together the understory of Garry Oak (Quercus garryana) ecosystems and the implications for restorationAuthor(s): Carrina Maslovat
Source: In: Standiford, Richard B., et al, tech. editor. Proceedings of the Fifth Symposium on Oak Woodlands: Oaks in California's Challenging Landscape. Gen. Tech. Rep. PSW-GTR-184, Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 141-149
Publication Series: General Technical Report (GTR)
Station: Pacific Southwest Research Station
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DescriptionEcosystem restoration requires a set of reference vegetation conditions which are difficult to find for Garry oak (Quercus garryana) ecosystems in Canada because contemporary sites have been drastically altered. A survey of historical information provides only limited clues about the original understory vegetation. Although there is considerable variation in the soils, climate, and successional status of current ecosystems, an exploration of the ecology of contemporary, native grass species existing in association with Garry oaks can point to which species may have been adapted to the historical disturbance regimes of pre-European contact ecosystems. Both California oatgrass (Danthonia californica) and Achnatherum sp., such as Lemmon’s needle grass (Achnatherum lemmonii), have ecological characteristics that suggest they are adapted to the disturbance regimes of fire and camas digging. These characteristics include dormancy, hygroscopic awns, and self-pollinated cleistogenes.
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CitationMaslovat, Carrina. 2002. Historical jigsaw puzzles: piecing together the understory of Garry Oak (Quercus garryana) ecosystems and the implications for restoration. In: Standiford, Richard B., et al, tech. editor. Proceedings of the Fifth Symposium on Oak Woodlands: Oaks in California''s Challenging Landscape. Gen. Tech. Rep. PSW-GTR-184, Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 141-149
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