Thus, although genetic differentiation between sympatric redpoll forms would be a good indication of species distinctiveness, its absence cannot be taken as a proof of conspecificity
Although the undulatus and tristichus exerges appear to be parallel lines of evolution, separated by the consobrinus exerge (Figure 1), there appears to be no reason to question the conspecificity
Ongoing morphological investigation is growingly supporting the possibility of conspecificity
The advantage of employing a molecular approach is that it can both determine conspecificity
of dramatically different morphological forms, and separate morphologically similar cryptic species (Larsen 2001; Larsen et al.
diversity: molecular evidence of conspecificity
within four previously presumed species.