Danny L. Fry

Contact Info

Division of Ecosystem Science, Department of Envir...
130 Mulford Hall
University of California
Berkeley , CA 94720-3114 , United States

Publications in Fire Ecology

Fire History in Coast Redwood Stands in the Northeastern Santa Cruz Mountains, California
Pages: 2-19
DOI: 10.4996/fireecology.0101002

Fire regimes in coast redwood forests in the northeastern Santa Cruz Mountains were determined by ring counts from 48 coast redwood stumps, downed logs, and live trees. Degradation of remnant materials from post-harvest fires severely limited available fire scars in this region. The earliest recorded fire was recorded in approximately 1615 and the last fire recorded was in 1884.  [Read More]

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Measuring the Rate of Spread of Chaparral Prescribed Fires in Northern California
Pages: 74-86
DOI: 10.4996/fireecology.0401074

Prescribed fire is a common method used to produce desired ecological effects in chaparral by mimicking the natural role of fire. Since prescribed fires are usually conducted in moderate fuel and weather conditions, models that accurately predict fire behavior and effects under these scenarios are important for management. In this study, explosive audio devices and steel stakes were used to record the location of the flaming front during seven prescribed fires in mature, chamise (Adenostoma fasciculatum) dominated chaparral in northern California.  [Read More]

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Human and Climatic Influences on Fire Occurrence in Californiaís North Coast Range, USA
Pages: 76-99
DOI: 10.4996/fireecology.0503076

Outside of the immediate coastal environments, little is known of fire history in the North Coast Range of California. Fire scar specimens were collected from ponderosa pine (Pinus ponderosa C. Lawson), sugar pine (Pinus lambertiana Douglas), incense cedar (Calocedrus decurrens [Torr] Florin), and Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) for seven plots in mixed-conifer forests from the Mendocino National Forest, California, USA. Five plots were on high ridges immediately adjacent to the Sacramento Valley (DRY plots). The other two plots were on mesic north facing slopes interior in the range (MESIC plots), and were separated from the Sacramento Valley by at least one to several ridge systems. These two plots were selected because they supported populations of rare ladyís slipper orchids (Cypripedium fasciculatum [Kellogg ex S. Watson] and C. montanum [Douglas ex Lindl.]).  [Read More]

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Age and Structure of Mature Knobcone Pine Forests in the Northern California Coast Range, USA
Pages: 49-62
DOI: 10.4996/fireecology.0801049

An understanding of current structural conditions and disturbance history is a requisite for optimal management of forest ecosystems, especially for serotinous species such as knobcone pine (Pinus attenuata Lemmon).  Knobcone pine is widely distributed in California, yet little is known regarding age and forest structure patterns.  In this study, we quantify forest conditions of 21 mature knobcone pine stands in the northern Mayacmas Mountains, north Coast Range, California, USA.  [Read More]

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Relating Fire-Caused Change in Forest Structure to Remotely Sensed Estimates of Fire Severity
Pages: 99-116
DOI: 10.4996/fireecology.1203099

Fire severity maps are an important tool for understanding fire effects on a landscape. The relative differenced normalized burn ratio (RdNBR) is a commonly used severity index in California forests, and is typically divided into four categories: unchanged, low, moderate, and high. RdNBR is often calculated twice—from images collected the year of the fire (initial assessment) and during the summer of the year after the fire (extended assessment).  [Read More]

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Fire History and Forest Structure along an Elevational Gradient in the Southern Cascade Range, Oregon, USA
Pages: 1-15
DOI: 10.4996/fireecology.1301001

We examined stand structure, demography, and fire history using tree cores and fire scar data across an approximately 7000-hectare study area over an elevational gradient in the southern Cascade Range, Oregon, USA. Our plots were located in mountain hemlock (Tsuga mertensiana [Bong.] Carr), red fir (Abies magnifica A. Murr.), lodgepole pine (Pinus contorta Loudon), and mixed conifer forest types.

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Decade-Long Plant Community Responses to Shrubland Fuel Hazard Reduction
Pages: 105-136
DOI: 10.4996/fireecology.130210513

Fuel hazard reduction treatments such as prescribed fire and mastication are widely used to reduce fuel hazard.  These treatments help protect people from wildfire, yet may not be mutually beneficial for people and ecosystems in areas adapted to infrequent crown fire.  Short-term studies indicate that some fuel hazard reduction treatments can be detrimental to biodiversity and ecosystem function, suggesting that land managers face an acute dilemma between protecting people or ecosystems.  However, the long-term ecological trajectories and fuel hazard outcomes of fuel treatments are poorly understood.  Using a 13-year replicated experimental study, we evaluated how shrub cover, non-native species abundance, native species diversity, and an obligate seeder responded to fuel treatments in California’s northern chaparral.  [Read More]

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