The influence of western spruce budworm on fire in spruce-fir forests

Eric Vane, Kristen M Waring, Adam Polinko

Research output: Contribution to journalArticle

Abstract

Western spruce budworm (Choristoneura freemani Razowski; WSBW) is the most significant defoliator of coniferous trees in the western United States. Despite its important influence on Western forests, there are still gaps in our knowledge of WSBW’s impact on fire, and little research has been done on this relationship in high-elevation spruce-fir forests. Although this species is native to western North America, current outbreaks have persisted for many years in some areas, leading to high mortality rates among host tree species. Using the Fire and Fuels Extension of the Forest Vegetation Simulator (FFE-FVS), we examined the current and future impact of an ongoing WSBW outbreak on potential fire behavior in spruce-fir forests in northern New Mexico, USA. We found that this ongoing WSBW outbreak resulted in little to no difference in fire behavior under moderate fire weather conditions. Under high-severity fire weather conditions, stands enduring WSBW outbreaks experienced less severe fire behavior. We also found that WSBW outbreaks resulted in a decrease in fire behavior under severe fire weather conditions for 40 years following the outbreak.

Original languageEnglish (US)
Pages (from-to)16-33
Number of pages18
JournalFire Ecology
Volume13
Issue number1
DOIs
StatePublished - Apr 1 2017

Fingerprint

Choristoneura occidentalis
fire behavior
fire weather
Abies
Picea
Choristoneura
Western United States
native species
coniferous tree
simulator
vegetation
mortality
weather condition

Keywords

  • Choristoneura freemani Razowski
  • Defoliator
  • Fire behavior
  • Fire severity
  • Insect
  • New Mexico
  • Outbreak

ASJC Scopus subject areas

  • Forestry
  • Ecology, Evolution, Behavior and Systematics
  • Environmental Science (miscellaneous)

Cite this

The influence of western spruce budworm on fire in spruce-fir forests. / Vane, Eric; Waring, Kristen M; Polinko, Adam.

In: Fire Ecology, Vol. 13, No. 1, 01.04.2017, p. 16-33.

Research output: Contribution to journalArticle

Vane, Eric ; Waring, Kristen M ; Polinko, Adam. / The influence of western spruce budworm on fire in spruce-fir forests. In: Fire Ecology. 2017 ; Vol. 13, No. 1. pp. 16-33.
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