Application of Biological Species Concept: 3 Difficulties
The following points highlight the three most serious difficulties faced in the application of biological species concept. The difficulties are: 1. Insufficient Information 2. Uniparental Reproduction 3. Evolutionary Intermediacy. Difficult # 1. Insufficient Information: Sexual dimorphism, age differences, polymorphism and other such types of variations often give rise to doubts as to whether a certain morphotype is a separate species [...]