Laboratory experiments of speciation

It has been suggested that laboratory experiments are not conducive to vicariant speciation events (allopatric and peripatric) due to their small population sizes and limited generations.

[2] Most estimates from studies of nature indicate that speciation takes hundreds of thousands to millions of years.

Negative or positive results of each experiment are provided by the reproductive isolation column.

Pre-zygotic reproductive isolation means that the reproducing individuals in the populations were unable to produce offspring (effectively a positive result).

Post-zygotic isolation means that the reproducing individuals were able to produce offspring but they were either sterile or inviable (a positive result as well).