Fire intensity and herbivory effects on postfire resprouting of Adenostoma fasciculatum in southern California chaparral

Oecologia ◽  
1991 ◽  
Vol 85 (3) ◽  
pp. 429-433 ◽  
Author(s):  
J. M. Moreno ◽  
W. C. Oechel
Keyword(s):  
Southern California ◽  
Fire Intensity ◽  
Adenostoma Fasciculatum

scholarly journals Changes in fire intensity have carry-over effects on plant responses after the next fire in southern California chaparral

2012 ◽  
Vol 24 (2) ◽  
pp. 395-404 ◽  
Author(s):  
José M. Moreno ◽  
Iván Torres ◽  
Belén Luna ◽  
Walter C. Oechel ◽  
Jon E. Keeley
Keyword(s):  
Southern California ◽  
Fire Intensity ◽  
Plant Responses ◽  
Carry Over ◽  
In Fire

Fire Intensity Effects on Germination of Shrubs and Herbs in Southern California Chaparral

Ecology ◽  
1991 ◽  
Vol 72 (6) ◽  
pp. 1993-2004 ◽  
Author(s):  
Jose M. Moreno ◽  
Walter C. Oechel
Keyword(s):  
Southern California ◽  
Fire Intensity

Fire Management in Coastal Sage-scrub, Southern California, USA

1985 ◽  
Vol 12 (2) ◽  
pp. 141-146 ◽  
Author(s):  
George P. Malanson
Keyword(s):  
Computer Simulation ◽  
Southern California ◽  
Prescribed Burning ◽  
Fire Regime ◽  
Wildland Fire ◽  
Fire Regimes ◽  
Coastal Sage Scrub ◽  
Fire Intensity ◽  
Sage Scrub ◽  
Fire Intervals

Wildland fire management directly affects the forces of natural selection to which plant taxa become adapted. Changes in a fire regime will often result in changes in the relative abundance of particular species, and may cause the extinction of some of them. Life-history characteristics are important indicators of adaptation to recurrent disturbance, such as may be produced by fire. The incorporation of these characteristics in a computer simulation allows of the projection of species abundance under different fire regimes.Through prescribed burning and fire suppression, fire interval and fire intensity can be controlled to some extent. The fire intensity for given sets of fuel, site, and meteoro-logical conditions, representing given fire-intervals, is calculated with the use of a fire behaviour computer simulation. These results are incorporated in computer simulation of the demographic competition of the five dominant shrub species of coastal sage-scrub in the Santa Monica Mountains of southern California: Artemisia californica, Encelia californica, Eriogonum cinereum, Salvia leucophylla, and S. mellifera. The model incorporates resprouting proportions, seedling establishment, and growth, and assumes survivorship rates in simulating scramble competition for space. Foliar cover-values of the five species are projected for nine different fire regimes. Short fire-intervals of the order of 10–20 years, such as might occur under a regime of prescribed burning, may eliminate or greatly reduce some species, whereas longer intervals allow the maintenance of a more diverse community especially of shrubs. Fixed and variable interval-lengths do not produce appreciably different results.This study suggests that prescribed burning at 10–20 years' intervals should not be used indiscriminately to reduce wildland fire hazard in southern California. The fire intervals that will reduce the hazard, may eliminate some dominant native shrub species. A ‘natural’ fire regime which would maintain the natural vegetation while constituting only a minimum hazard to homesites may, unfortunately, be mutually exclusive goals in the coastal sage-scrub of southern California.

Chamise Chaparral Dead Fuel Fraction Is Not Reliably Predicted by Age

1990 ◽  
Vol 5 (4) ◽  
pp. 127-131 ◽  
Author(s):  
Timothy E. Paysen ◽  
Jack D. Cohen
Keyword(s):  
Southern California ◽  
Strong Relationship ◽  
Adenostoma Fasciculatum ◽  
Shrub Canopy ◽  
Dead Material ◽  
Fuel Fraction

Abstract Fire managers of southern California chaparral often assume that the amount of dead material in chaparral shrubs is closely related to canopy age. Analysis of chamise (Adenostoma fasciculatum), sampled from southern California shrublands, indicates that the ratio of dead to live components is not related reliably to age of shrub canopy. Further statistical description of the data indicates that fractions of dead material greater than 0.40 are rare. The results provide grounds for seriously questioning current assumptions about the strong relationship between age and fraction dead in southern California chaparral fuels. West J. Appl. For. 5(4):00-00, October 1990.

The Effects of Presentation on Noise and Dental Appliances on Speech

1981 ◽  
Vol 24 (1) ◽  
pp. 151-151
Author(s):  
Lillian Glass ◽  
Sharon R. Garber ◽  
T. Michael Speidel ◽  
Gerald M. Siegel ◽  
Edward Miller
Keyword(s):  
Southern California ◽  
University Of Southern California ◽  
University Of Minnesota ◽  
School Of Medicine ◽  
Southern California School ◽  
School Of Dentistry ◽  
The University

An omission in the Table of Contents, December JSHR, has occurred. Lillian Glass, Ph.D., at the University of Southern California School of Medicine and School of Dentistry, was a co-author of the article "The Effects of Presentation on Noise and Dental Appliances on Speech" along with Sharon R. Garber, T. Michael Speidel, Gerald M. Siegel, and Edward Miller of the University of Minnesota, Minneapolis.

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