What Is Speciation Without Geographic Isolation Called?

What Is Speciation Without Geographic Isolation Called? Explanation: Speciation without geographic isolation is referred to as sympatric speciation. Which type of speciation occurs without geographic isolation? In sympatric speciation, reproductive isolation and divergence occur without geographical barriers—for example, by polyploidy. What are the 4 types of speciation? There are four major variants of speciation: allopatric,