English: Scheme showing possible processes underlying the similarity of species in a species complex (= cryptic species, when they are nearly indistinguishable):
a – Morphological stasisː Species diverge, but do not develop apparent (morphological) differences.
b – Hybrid speciationː Two species hybridise and give rise to a new species with intermediate characteristics, thus blurring the (morphological) species boundaries.
Deutsch: Schema mit möglichen Prozessen, die sehr ähnliche Arten in einem Artenkomplex erzeugen (= kryptische Arten, wenn sie kaum unterscheidbar sind):
a – Morphologische Stasisː Zwei Arten trennen sich, entwickeln aber keine augenscheinlichen (morphologischen) Unterschiede.
b – Hybrid-Artbildungː Zwei Arten hybridisieren; es entsteht eine neue Art mit Merkmalen zwischen den beiden Elternarten, so dass die Grenzen zwischen Arten verwischen.
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