in Nicaraguan crater lake cichlid fish.
In the well documented case of sympatric speciation
in Howea, the shift in flowering phenology between species on volcanic and calcareous soils dramatically reduced interspecific gene flow (Hipperson et al., 2016; Fig.
Then we compare the reproductive interference model with models of sympatric speciation
based on host race formation and sexual selection, which have been considered the main drivers of genetic and habitat diversification in sympatric lacewings.
'If we can figure out how sympatric speciation
can happen in a tiny crater lake, then we have to ask ourselves whether we think the same thing can happen on continents and in oceans, where most species live,' he says.
suggested by monophyly of crater lake cichlids.
1994), mechanisms of true sympatric speciation
have been suggested as well (reviewed in Martens 1997).
"As far as we are aware, Shoemaker and Ross are the first to demonstrate that social behavior influences sympatric speciation
," assert Ross H.
This has major evolutionary implications since it may argue for sympatric speciation
. Indeed, although still in debate, it has been repeatedly suggested that inquilines may have diverged from their sister host species (or from a common ancestor) through intraspecific parasitism [1, 6, 9, 10].
in phytophagous insects: moving beyond controversy.
Sexual selection can constrain sympatric speciation
Parapatric speciation is speciation without geographical isolation by disruptive selection across environmental gradients (Gentry, 1989); that is, a special type of sympatric speciation