For next week's lab meeting (April 9 @ 10:30), let's read an interesting, new-ish paper by Alex Pigot and Joseph Tobias from Ecology Letters, showing that secondary sympatry of closely related species is limited by divergence time (with more recently separated species less likely to overlap geographically). This paper provides good evidence that competition limits geographic ranges, and should provide some interesting fuel for discussion in light of sympatric damselflies that have been studied in our lab.
Unfortunately, I will not be able to make it to the discussion, as I will be attending Bengt Hansson's landscape genetics course (co-taught by fellow lab members Maren Wellenreuther and Rachel Dudaniec!), but I can still provide fika and some discussion points.
The title/ abstract and link to the article are as follows:
Species interactions constrain geographic range expansion over evolutionary time