"Charaxes" demonstrates both allopatric and sympatric speciation. The dichotomy between sympatric and allopatric speciation is no longer accepted by the scientific community. Peripatric speciation models are identical to models of vicariance (allopatric speciation). Microallopatry refers to allopatric speciation occurring on a small geographic scale. Various alternative models have been developed concerning allopatric speciation. He called these patches of rainforest areas refuges and within these patches allopatric speciation occurred. Its small size is a result of insular dwarfism, a form of allopatric speciation. Ecological allopatry is a reverse-ordered form of allopatric speciation in conjunction with reinforcement. Below is a non-exhaustive table of the laboratory experiments conducted on allopatric speciation. Since the 1940s, allopatric speciation has been accepted. This may arise from human alteration of habitats enabling related allopatric species to overlap. Horticultural hybrids have been produced between these two allopatric species. Many allopatric sub-species show differences in calls. Allopatric speciation begins when a population becomes geographically separated. Other minor allopatric models have also been developed are discussed below.