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Title: Biodiversity - Reproductive isolation
Description: definitions on types of Reproductive isolation and their effect on each species + examples

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Reproductive isolation is the inability of the individuals of a species to create offsprings
with members of any other species due to physical diversities
...


Pre - zygotic reproductive isolation is a mechanism that separate species from mating with
others, it prevents the fertilisation of eggs
...

Example - different species of manzanita shrubs live at different altitudes and habitats
which prevents them from meeting
...


Example - Male frigate birds have red kidney-shaped pooches on their chest that they inflate like balloons to attract girls
...


Temporal: individuals from different species may be in breading season at different times
in the year so they won’t be interested in copulating at the same time
...
It just won’t fit
...

Gametic: for fertilisation to occur, the sperm must reach the ovum
...
In this case the sperm and ova of two species are
not genetically compatible, and gametes won’t recognise each other therefore fertilisation won’t take place
...

Example - hybrid inviability is common in plants, those hybrid seeds often fail to germinate or dies shortly after germination
...


Example - a mule is produced by a male dokey and a female horse, it has 63 chromosomes
which is a mixture of horse’s 64 and the donkey’s 62
...

Hybrid breakdown: if the hybrid results to be fertile, the hybrid population might disappear along time as from one generation to the next they may result weaker, less fertile, etc
Title: Biodiversity - Reproductive isolation
Description: definitions on types of Reproductive isolation and their effect on each species + examples