Eco-Evolutionary Dynamics in Lakes

Question 1

Give one example of contemporary evolution in lakes.

Answer 1

• Evolution of Daphnia in Lake Constance following cultural eutrophication and toxic cyanobacteria blooms (Hairston etal. 1990).
• Evolution of a new “beach spawning” morph of sockeye salmon following introduction to Lake Washington (Hendry et
  al. 2000).
• Clean-up of Lake Washington caused the evolution of threespine stickleback armoring by increasing vulnerability to predators (Kitano et al. 2008).
• Construction of dams on coastal Connecticut lakes caused the evolution of landlocked (freshwater resident) alewife populations from anadromous
  (migratory) ancestors (Palkovacs et al. 2008).

Question 2

What is the definition of Eco-evolutionary dynamics?

Answer 2

Cyclical interactions between ecology and evolution such that changes in ecological interactions drive changes in organismal traits that, in turn, alter the form of ecological interactions