In zoology, super-hybridization is the way in which three distinct species are connected via areas where populations are found that have the characteristics of both. There are two types of super-hybridization: primary and secondary super-hybridization.
the species. Adjacent populations and subspecies are subject to cline intergradation, and in these situations it is usually taken for granted that the clines...
clinal variation over the large geographic range and the extensive intergradation means that the geographical limits and acceptance of the various subspecies...
disputed subspecies distribution limits, and revealing intraspecific intergradation, in the Common Redstart Phoenicurus phoenicurus using citizen science...
Morocco. Neck, upper back and shoulders black in adult males. Wide intergradation with P. o. gibraltariensis and treated as a synonym of it by many authorities...
other subspecies of D. punctatus. In some regions, there are areas of intergradation with other subspecies. Generally from 10 to 15 inches (25 to 38 centimetres)...
1789) Geographic variation of A. piscivorus A. p. piscivorus Intergradation Synonyms Crotalus piscivorus – Lacépède, 1789 Trigonocephalus piscivorus...
northern Malawi and southwestern Tanzania as well. Such a broad area of intergradation has been taken as evidence of substantial genetic exchange between the...
blackness of the upperparts quite well. Here too is a broad zone of intergradation. Pacific birds moult after breeding, and females shed a few body feathers...
generally overlap. According to West these subspecies have morphological intergradation, particularly in the higher-rainfall regions of Australia, but not in...
Curruca curruca margelanica – northern China Two more taxa occur in the intergradation zone with the small whitethroat, stretching from the northern Caspian...
pelage-based designations have been shown to be questionable. Complete colour intergradation occurs in both O. dalli sheep subspecies (i.e., Dall's and Stone's)...
subspecies, mostly no longer recognised as distinct due to the extensive intergradation between them; the following are still recognised: Epilobium canum ssp...
limit in Russia is hard to define, due to extensive hybridization and intergradation with the Siberian spruce, but is usually given as the Ural Mountains...
usually by comparing the anatomical features of hybrids that result from intergradation of the classical subspecies. Despite the imprecision, the subspecies...
pubescent shoots, and may be related to extensive hybridisation and intergradation with the closely related Engelmann spruce found further south in the...
adjoining subspecies, O. s. spaldingii and O. s. melasmenus with a zone of intergradation. Unmistakable thrush-like, ground-dwelling, birds. Males and females...
the North African subspecies camelus, indicating there may have been intergradation between the two. Almost indistinguishable from that subspecies, the...
annularis are widely distributed in North America, and may represent an intergradation of forms rather than two distinct species, a group known as the "N....
validity of these subspecies has been questioned as there is extensive intergradation between them and the species shows extreme variability in its appearance;...
shows them to be distinct species, though there is a small zone of intergradation where their geographic ranges meet. Morse, K. 2023. Malacothamnus Volume...
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