Disturbance of coastal sage scrub in southern California has led to extensive displacement
of native shrubs by exotic annual grasses. The initial conversion from shrubland to exotic …

Urban and agricultural activities are not part of natural disturbance regimes and may bear
little resemblance to them. Such disturbances are common in densely populated semi‐arid …

Many ecosystems of conservation concern require some level of disturbance to sustain their
species composition and ecological function. However, inappropriate disturbance regimes …

Exotic annual grasses now cover large areas of southern California that were once stands of
native California sage scrub (CSS), or a mixture of native grasses, forbs, and CSS. Both CSS …

This study investigates the recent invasion of exotic grasslands by coyote brush in La Jolla
Valley, California. We test the “event dependent” hypothesis that mechanical disturbances …

California sage scrub (CSS) is a highly threatened vegetation community in coastal
Southern California, 90 percent of which has been lost. Understanding CSS recovery is …

Coastal sage scrub (CSS) is a unique and highly threatened vegetation community in
coastal Southern California and northern Mexico, with 90 percent lost to development …

Vegetation boundaries change naturally over time, but native vegetation communities are
especially at risk following the introduction of exotic species and changes in land use …