Skip to main content
Fig. 5 | Fire Ecology

Fig. 5

From: Dendrochronological reconstruction of fire history in coniferous forests in the Monarch Butterfly Biosphere Reserve, Mexico

Fig. 5

Superposed epoch analysis for the relationship between local precipitation (tree-ring width index; left panels), ENSO index (right panels), and fire occurrence, for the period 1925 to 2015, in fir forest (sites dominated by A. religiosa), mixed pine–fir forest (sites codominated by both P. pseudostrobus and A. religiosa), and pine forest (sites dominated by P. pseudostrobus), for fire scars recorded in >25% of scarred trees in the Monarch Butterfly Biosphere Reserve, Mexico. Values above the mean (index = 1) represent wet years, while values below the mean represent dry years. ENSO values above the mean (index = 0) represent La Niña conditions, while ENSO values below the mean represent El Niño conditions. Precipitation and ENSO values represent climate conditions during the fire year (0), the 5 years preceding fires, and the 2 years after fires. The lines above and under the x-axes correspond to the 95% confidence intervals

Back to article page