Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Fire History and Patterns of Venturan Subassociations of Californian Coastal Sage Scrub

George P. Malanson
Vegetatio
Vol. 57, No. 2/3 (Nov. 30, 1984), pp. 121-128
Published by: Springer
Stable URL: http://www.jstor.org/stable/20146116
Page Count: 8
  • Download ($43.95)
  • Cite this Item
Fire History and Patterns of Venturan Subassociations of Californian Coastal Sage Scrub
Preview not available

Abstract

Californian coastal sage scrub has floristically distinct subassociations with sharp boundaries in the Santa Monica Mountains. This mesoscale biogeographic pattern has been variously attributed to the timing and pattern of fire and to differences in the moisture availability on sites. An examination of the actual fire history of sites reveals that recent fire events are unlikely to have caused the observed patterns. Sites with similar fire histories are not as similar in vegetation as sites with different fire histories but similar aspect. Single short fire intervals do not result in dissimilar communities; fires are unlikely to recur with the same boundaries as these two subassociations. A simulation of shrub response to fire interval and intensity indicates that long-term fire trends are also unlikely to have caused the distinction or the sharp boundaries of the two subassociations. Both subassociations include species with life history characteristics adapted to short and to long fire intervals. The subassociations exist without regard to fire history.

Page Thumbnails

  • Thumbnail: Page 
[121]
    [121]
  • Thumbnail: Page 
122
    122
  • Thumbnail: Page 
123
    123
  • Thumbnail: Page 
124
    124
  • Thumbnail: Page 
125
    125
  • Thumbnail: Page 
126
    126
  • Thumbnail: Page 
127
    127
  • Thumbnail: Page 
128
    128