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Absolute numbers of SDM publications over time. The curve was estimated in a Poisson model; with the number of SDM publications in a year as a dependent variable (N) and year since 1996 as an independent variable (t). N = exp(3.64 + 0.21 ∗ t - 0.02 ∗ t2 + 0.001 ∗ t3). All coefficients P < 0.01.
