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Tom Miller (a prof here at Rice) and Brian Inouye have a paper out in Ecology (paper, appendices) that confronts two-sex models of dispersal with empirical data.Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.
They conducted the first confrontation of two-sex demographic models with empirical data on lab populations of bean beetles Callosobruchus.
Their R code for the modeling work is available at Ecological Archives (link here).
Here is a figure made from running the five blocks of code in ‘Miller_and_Inouye_figures.txt’ that reproduces Fig. 4 (A-E) in their Ecology paper (p = proportion female, Nt = density). Nice!
A: Saturating density dependence
B: Over-compensatory density dependence
C: Sex-specific gamma’s (but bM=bF=0.5)
D: Sex-specific b’s (but gammaM=gammaF=1)
E: Sex-specific b’s (but gammaM=gammaF=2)
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