[PDF] Sympatric speciation in palms on an oceanic island | Semantic Scholar

The study addresses limitations of previous studies and supports new criteria for inferring sympatric speciation, as well as comparing aspects of reproductive isolation between allopatric and sympatrics taxa both in nature and in the laboratory.

The results all concur with criteria necessary to demonstrate sympatric speciation in ricefishes on Sulawesi, an island of Wallacea, and it is found that the three species are morphologically distinguishable and clearly separated by population‐structure analyses based on the SNPs, suggesting that they are reproductively isolated from each other.