Table 1 Parameters in the model and prior parameter values for ABC reference table

From: Using ABC and microsatellite data to detect multiple introductions of invasive species from a single source

Parameter

Abbreviation

Prior distribution

Population size of the source

NS

Uniform (50 000:200 000)

Current size of invading population

NI

Uniform (5000:400 000)

Number of individuals introduced (bottleneck)

NB

Uniform (4:400)

Time (before present) of first introduction (time of split)

TSa

Uniform (15:400)

Length of bottleneck phase

TB

Uniform (1:80)

Time (before present) of end of bottleneck, beginning of exponential growth

TG

TS−TB

Time (before present) of second wave (migration event), if existing

TM

TS−TB−1

Mean mutation rate

MUb

Uniform (0.001:0.0001)

Growth rate

GROWTH

1/(TS−TB) ln(NB/NI)

  1. Abbreviation: ABC, approximate Bayesian computation.
  2. aSubject to constraint: TS>(TB+1).
  3. bThe mean for the gamma distribution (see text).
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