Dissertation/Thesis Abstract

The long term dynamics of coyote brush invasion in a type-converted landscape of Southern California
by Brennan, Sean G., M.A., California State University, Long Beach, 2015, 100; 1596454
Abstract (Summary)

Coyote brush (Baccharis pilularis) is a native shrub common to the coastal sage scrub (CSS) habitat of California and often appears in a complex mosaic with other vegetation types including grasslands. Both CSS and California grasslands are threatened habitats, where restorations of type-converted landscapes are often burdened by the persistent dominance of non-native annual grasses. However, coyote brush has been documented periodically invading grasslands, resulting in a change of state from grassland to shrubland. This study investigates the long-term dynamics of coyote brush invasion in a type-converted landscape of Southern California. Stands of expanding coyote brush were transected to identify species composition along a spatial and temporal continuum. Results show that following initial invasion, non-native species are replaced by not only coyote brush, but also several other noteworthy native species. This study shows that in Southern California, coyote brush invasion of type-converted landscapes leads to increased native diversity that includes native grasses.

Indexing (document details)
Advisor: Laris, Paul
Commitee: Rodrigue, Christine M., Wechsler, Suzanne P.
School: California State University, Long Beach
Department: Geography
School Location: United States -- California
Source: MAI 55/01M(E), Masters Abstracts International
Subjects: Ecology, Geography, Natural Resource Management
Keywords: Baccharis pilularis, California, Coastal sage scrub, Grasslands, Native invasives, Succession
Publication Number: 1596454
ISBN: 9781321977233
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