can anybody help me to b differntiate between speciation and reproductive isolation...
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can anybody help me to b differntiate between speciation and reproductive isolation...
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Speciation is accumulation of such advantageous variations in a group due to geographical isolation or migration. So much so that both groups almost become genetically incompatible(not able to produce viable ofsprings, a vague definition, not always true) .
Reproductive isolation can take many forms. It may involve the presence of distinctive morphological, behavioural or other signals that are involved in mate recognition. It may involve ecological factors that affect the fitness of hybrid offspring in nature. For example, hybrid genotypes may have lower survivorship than pure genotypes of either parental form. Reproductive isolation may involve genetic incompatibilities between species that result in the sterility or inviability of hybrid offspring.