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Niki Nubi




SPECIATION


A species is defined as a group of organisms that can interbreed to produce fertile offspring.
Expanding on this definition, a species must be able to reproduce successfully (either sexually or
asexually) in order to be deemed a species. Speciation occurs when two or more separate species…

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Niki Nubi




Sympatric speciation is when different species arise within the same overlapping geographic
area. As they are not geographically isolated, other factors will prevent interbreeding. When it
comes to speciation, reproductive isolation is very important and it can occur when fertilisation is
prevented. Pre-zygotic isolating mechanisms prevent the formation…

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Niki Nubi




http://evolution.berkeley.edu/evosite/evo101/VCCausesSpeciation.shtml

http://www.globalchange.umich.edu/globalchange1/current/lectures/speciation/speciation.html

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