The relationship between climate and outbreak characteristics of the spruce budworm in eastern Canada
Climatic Change (2008) 89:447–449
DOI 10.1007/s10584-008-9478-x
ERRATUM
The relationship between climate and outbreak
characteristics of the spruce budworm in eastern Canada
David R. Gray
© Springer Science + Business Media B.V. 2008
Erratum to: Climatic Change (2008) 87:361–383
DOI 10.1007/s10584-007-9317-5
Unfortunately, in the printed version of this article Figs. 1, 2, 5 and 6 were displayed
in black and white where colour reproduction was necessary. Please find the colour
figures below.
Fig. 1 The 4,744 cells
(30,000 ha) in which forest
composition, climate variables,
and spruce budworm outbreak
characteristics were
summarized
The online version of the original article can be found at
http://dx.doi.org/10.1007/s10584-007-9317-5.
D. R. Gray (B)
Natural Resources Canada, Canadian Forest Service – Atlantic Forestry Centre,
P.O. Box 4000, Fredericton, NB E3B 5P7, Canada
e-mail:
448
Climatic Change (2008) 89:447–449
Fig. 2 Historical observations, and model predictions, of outbreak severity (% defoliation) and
duration (years) in the 3,245 cells used to build the model. Cells within each rectangular grid were
permuted in Monte Carlo simulations for significance testing of explanatory variables. a observed
severity; b predicted severity; c observed duration; d predicted duration
3
s_mmin
2
1
s_emax
arid
dur
sev
con
0
w_emin
lag
-1
-2
-4
s_dd
s_emin
-2
0
2
4
6
Fig. 5 Regression biplot of the model where Y is the matrix of spruce budworm outbreak characteristics, and X is the combined matrix of significant climate variables, forest composition, and
geographic location. For clarity, only the climate variables (XC ) have been displayed. A regression
biplot shows the rate of change in yk (a variable of Y) per unit change in x j (a variable of X) when
the other variables of X are held constant. The change in s_emax or s_emin (proportion of 1 s.d.)
necessary to produce a –1.0 s.d. change in dur and sev, respectively, are shown by the dotted lines
that intersect the s_emax and s_emin vectors
Climatic Change (2008) 89:447–449
449
Fig. 6 Projected changes (2081–2100 values minus historic values) in climate variables s_emax (◦ C)
and s_dd (◦ C-day), and the predicted changes to spruce budworm outbreak duration (years) and
severity (% defoliation; future model predictions minus historic model predictions). a predicted
change in s_emax; b predicted change in s_dd; c predicted change in duration; d predicted change
in severity
(...truncated)