Cited by 229Fire effects on ecosystemsRangeland and Wildlife ManagementPlant Water Relations and Carbon Dynamics

Flammability Is a Niche Construction Trait: Canopy Architecture Affects Fire Intensity

Schwilk, Dylan W.·2003·The American Naturalist

Abstract

By affecting local fire intensities or the probability of ignition, traits that influence plant flammability may indirectly control selection for fire-related life-history and physiological traits. The retention of dead branches in the canopy has been cited as contributing to plant flammability. No experiment, however, has demonstrated that differences in plant canopy architecture on the scale of observed variation in nature can affect local fire characteristics. I experimentally manipulated canopies of Adenostoma fasciculatum, a California shrub that naturally retains dead branches, to mimic degrees of self-pruning in four small-scale (4 m x 6 m) treatments: removal of all canopy dead wood, clipping of all dead wood with wood left as litter, an unmanipulated treatment, and a dead wood addition. Treatment plots were burned in large-scale prescribed fires. Fire temperatures and heat release were significantly higher in Unmanipulated and Addition treatments, demonstrating a significant local effect of dead branch retention. Removal and Clip and Leave treatments did not differ significantly; the observed effect is a result of canopy architecture rather than differences in total fuel load.

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Crossref · 10.1086/379351

Cites

41 of 41 references verified0 citation errors · 0 not checkable

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  • An agent may benefit from NC by increasing the capacity of a niche, reducing the capacity of a niche, or bringing the environmental state closer to its preferred niche and further away from others.

    “An agent may benefit from NC by: a) increasing the capacity of a niche, for example through nest-building, thus, reducing competition for resources b) reducing the capacity of a niche thus making it less desirable to others.”
  • Studies of natural populations have shown that NC often affects selection pressures by helping species protect themselves from environmental uncertainty and accelerates evolution by complexifying environments.

    “Since then, studies of natural populations have shown that NC often affects selection pressures by helping species protect themselves from environmental uncertainty and accelerates evolution by complexifying environments (Odling-Smee et al., 2003;Schwilk, 2003;Boivin et al., 2016).”

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Authors
Schwilk, D. W.
Affiliations
Stanford University (US)
Corresponding author
Schwilk, Dylan W.
Venue
The American Naturalist
Published
2003-12
Volume
162
Issue
6
Pages
725-733
ISSN
  • 0003-0147 (ISSN-L)
  • 1537-5323
OpenAlex
W2180858190
Cited by
229
References
42
Citations by year
2026: 10 · 2025: 13 · 2024: 8 · 2023: 10 · 2022: 20 · 2021: 11 · 2020: 12 · 2019: 23 · 2018: 10 · 2017: 9 · 2016: 9 · 2015: 16 · 2014: 11 · 2013: 4 · 2012: 14
FWCI
4.25
Type
journal article
Language
en
Open access
closed
Locations
  • The American Naturalist (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Fire effects on ecosystems
  • Physical Sciences › Environmental Science › Ecology › Rangeland and Wildlife Management
  • Physical Sciences › Environmental Science › Global and Planetary Change › Plant Water Relations and Carbon Dynamics
Keywords
plant flammability, canopy structure, self-pruning, fire intensity, prescribed burning, Adenostoma fasciculatum, niche construction, fire adaptation, fuel load, heat release
MeSH terms
California, Calorimetry, Environment, Fires, Selection, Genetic, Temperature, Trees, Rosaceae

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