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Hybrid zones can form from secondary contact. A hybrid zone exists where the ranges of two interbreeding species or diverged intraspecific lineages meet and cross-fertilize. . Hybrid zones can form in situ due to the evolution of a new lineage [1] [page needed] but generally they result from secondary contact of the parental forms after a period of geographic isolation, which allowed their ...
A hybrid zone may appear during secondary contact, meaning there would be an area where the two populations cohabitate and produce hybrids, often arranged in a cline. The width of the zone may vary from tens of meters to several hundred kilometers. A hybrid zone may be stable, or it may not.
In the ecotone between the arid Chaco and the Espinal of central Argentina, they are known to naturally hybridise with the Argentine black and white tegu (Salvator merianae) with a stable hybrid zone. [6]
Experimental studies suggest that hybridization offers a rapid route to speciation, a prediction confirmed by the fact that early generation hybrids and ancient hybrid species have matching genomes, meaning that once hybridization has occurred, the new hybrid genome can remain stable. [50] Many hybrid zones are known where the ranges of two ...
For a hybrid form to persist, it must be able to exploit the available resources better than either parent species, which, in most cases, it will have to compete with.For example: while grizzly bears and polar bears may be able to mate and produce offspring, a grizzly–polar bear hybrid is apparently less- suited in either of the parents' ecological niches than the original parent species ...
Hybrid genome - The genome of a hybrid individual, characterized by the presence of ancestry tracts from different species. This review focuses mainly on hybrid genomes that result in separate lineages. Hybrid zone - geographical area in which two taxa (e.g. species or breeds) interbreed resulting in hybrid offspring.
April 19 and 20 is a rare hybrid solar eclipse. ... The total solar eclipse in Aries will take us out of our comfort zone, as the fiery energy wants to inspire and motivate us to take action ...
The Argentine black and white tegu is of the Order Squamata and Family Teiidae, [7] which also includes racerunners and whiptails. There are nine total genera of tegu, though new taxonomic classifications change, with the Argentine black and white tegu being of the Salvator genus.