How often do they do it? An in-depth analysis of the hybrid zone of two grass snake species (Natrix astreptophora and Natrix helvetica)
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DOI: 10.1093/biolinnean/blaa152
Abstract: We examined the contact zone of two parapatric species of grass snake (Natrix astreptophora and Natrix helvetica) in southern France. To this end, we used comprehensive sampling, analysed mtDNA sequences and microsatellite loci, and built… read more here.
Keywords: natrix astreptophora; grass snake; zone two; hybrid zone ... See more keywords