Table of Contents

 
Fire Ecology
Volume 2, Issue 2 - 2006
DOI: 10.4996/fireecology.0202

About the Cover

Introduction


Message from the Editor

Author: Michael J. Medler
Pages: 1-2
DOI: 10.4996/fireecology.0202001

A beginning is a very delicate time, and I would like to thank all the people who have helped begin Fire Ecology. Many authors and reviewers have put considerable time and effort into developing the manuscripts found in the journal. The entire board of directors of the Association for Fire Ecology has been invaluable in providing guidance and direction for the journal. I am also deeply indebted to all the people have believed in this journal and helped move it forward.

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Research Articles


Thinning and Prescribed Fire Effects on Fuels and Potential Fire Behavior in an Eastern Cascades Forest, Washington, USA

Authors: James K. Agee and M. Reese Lolley
Pages: 3-19
DOI: 10.4996/fireecology.0202003

Prescribed fire and low thinning were applied to dry forests dominated by ponderosa pine(Pinus ponderosa) and Douglas-fir (Pseudotsuga menziesii) in the eastern Washington Cascades. Experimental design was an unbalanced analysis of variance with 4 control units, 4 thin units, 2 burn units and 2 thin/burn units. Thinning was designed to reduce basal area to 10-14 m2 ha-1 in a non-uniform pattern and burning was a low intensity spring burn.

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Restoring Northern Sierra Nevada Mixed Conifer Forest Composition and Structure with Prescribed Fires of Varying Intensities

Authors: Lars Schmidt, Marco G. Hille, and Scott L. Stephens
Pages: 20-33
DOI: 10.4996/fireecology.0202020

The effectiveness of low and high intensity prescribed fires in restoring the composition andspatial structure in a mixed conifer forest in the Northern Sierra Nevada is examined. The overstocked pre-fire stand had 480 trees ha-1, a basal area of 39.5 m² ha-1, and an inverse J shaped diameter distribution with an average dbh of 23 cm. Prescribed fires produced tree mortality in the lower and intermediate dbh-classes and affected trees up to 40 cm dbh.

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Ecological and Sampling Constraints on Defining Landscape Fire Severity

Author: Carl H. Key
Pages: 34-59
DOI: 10.4996/fireecology.0202034

Ecological definition and detection of fire severity are influenced by factors of spatial resolution and timing. Resolution determines the aggregation of effects within a sampling unit or pixel (alpha variation), hence limiting the discernible ecological responses, and controlling the spatial patchiness of responses distributed throughout a burn (beta variation). As resolution decreases, alpha variation increases, extracting beta variation and complexity from the spatial model of the whole burn.

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Seasons Within the Wildfire Season: Marking Weather-Related Fire Occurrence Regimes

Authors: Scot D. Johnson and Randy Balice
Pages: 60-78
DOI: 10.4996/fireecology.0202060

Weather and climate contribute to the multidecadal, seasonal, and daily cycles of the potential for fire ignitions and for the severity of fires. We used a long-term dataset of weather parameters to characterize comparatively homogeneous periods, or subseasons, within the fire season. First, we conducted an exploratory analysis of weather conditions using the univariate t-test to determine if natural breaks in the weather conditions could be identified.

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Fire Decreases Arthropod Abundance But Increases Diversity: Early and Late Season Prescribed Fire Effects in a Sierra Nevada Mixed-Conifer Forest

Authors: Scott M. Ferrenberg, Dylan W. Schwilk, Eric E. Knapp, Eric Groth, and Jon E. Keeley
Pages: 79-102
DOI: 10.4996/fireecology.0202079

Prior to fire suppression in the 20th century, the mixed-conifer forests of the Sierra Nevada, California, U.S.A., historically burned in frequent fires that typically occurred during the late summer and early fall. Fire managers have been attempting to restore natural ecosystem processes through prescription burning, and have often favored burning during the fall in order to mimic historical fire regimes.

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Forum: Issues, Management, Policy, and Opinions


Response to the Ingalsbee Article in Fire Ecology, Vol.1 No.1, April 2005

Author: George Terhune
Pages: 103-106
DOI: 10.4996/fireecology.0202103

In his article Fuelbreaks for Wildland Fire Management, (Fire Ecology, Vol 1, Nbr 1, April 2005),Timothy Ingalsbee calls for “…a wider range of designs, methods, and uses for fuelbreaks than has been offered in the typical fuelbreak proposals  of the past.”

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Research Articles


Spatial Autocorrelation and Pseudoreplicaton in Fire Ecology

Authors: Amanda L. Bataineh, Brian P. Oswald, Mohammad Bataineh, Daniel Unger, I-Kuai Hung, and Daniel Scognamillo
Pages: 107-118
DOI: 10.4996/fireecology.0202107

Fire ecologists face many challenges regarding the statistical analyses of their studies. Hurlbert (1984) brought the problem of pseudoreplication to the scientific community’s attention in the mid 1980’s. Now, there is a new issue in the form of spatial autocorrelation. Spatial autocorrelation, if present, violates the traditional statistical assumption of observational independence. What, if anything, can the fire ecology community do about this new problem?

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