0
A geographic barrier eg mountain range, river, ocean, desert, can split a species into two populations which can no longer mix with each other.
By splitting up a species into two separate populations a geographic barrier can lead to the formation of a new species.
The two separate populations start to develop in isolation from each other. Different mutations will occur in the two populations and natural selection will adapt them to the slightly different conditions in the two areas.
Given enough time the two populations will become so different that if they are brought together again they will no longer be able to interbreed ie they will have become two different species.
This is called allopatric speciation.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What are three ways isolation occur?
1. When new species form.2. When a group is separated from the rest of its species.3. When members of the isolated group can no longer mate with the rest of species.
Which increase speciation?
Geographic isolation Low geneflow.
Hybrid zones provide an opportunity to investigate?
The evolution of reproductive isolation
Why does geographic isolation cause speciation (Apex)?
it prevents gene flow between populations
How does geographic isolation contribute to the evolution of a new species?
the answer is in page 497 starts where it says over several and ends where it says isolated population... Here is the answer more specific..... It contributes because isolated groups may experience different environments then other species somewhere else where so they will have to adapt to there environment to survive..for example if you put a bird on one island and a bird on another island farther away with a different environment they are both gonna adapt to there environment and become 2 different species Good answer but i think mine might be a little more informational. Also i got this answer in the McGraw Hill Glencoe life science book on page 159 bottom left. Geographic Isolation contributes to evolution because many gene mutations occur. A species has already adapted to that cold environment so that they will change. This will cause the organism to not be able to mate with any other of their old species. This also adds variations to populations. The Key deer, for example, evolved because of geographic evolution 4,000-6,000 years ago. Now the key deer will only be able to mate with other deer that went through the same mutations in geographic evolution.
How do mutations natural selection geographic isolation genetic drift and migration contribute to biological evolution?
they contribute to biological evolution by how they've affected the evolution rate by increasing it or decreasing it
What is the type of evolution by which organisms evolve differences when they are isolated in different environments?
Allopatric speciation.Allopactric speciation. Geographic isolation. Adaptive radiation can also result from geographic isolation.
What contribute to reduction of distinctions in dialects?
tv,education, and geographic isolation IG:Red_Beamz
How do you use geographic isolation in a sentence?
"Japan used Geographic isolation more than once" Is a sentence using Geographic isolation.
What does geographic isolation lead to?
Reproductive isolation
The geographic isolation of a people frequently reinforcesThe geographic isolation of a people frequently reinforces?
traditional way of life
What is type of isolation that prevents easterns and western meadowlarks from interbreeding?
Geographic isolation.
The concept that evolution is the result of long periods of stability interrupted by geologically brief periods of significant change is known as?
The answer from Castle Learning is Punctuated Equilibrium.
What type of isolation that prevents eastern and western meadowlarks from interbreeding?
Geographic isolation.
Type of isolation that led to the evolution of the kaibab squirrel?
Geograpic isolation
What is geographic isolation and what can it lead to?
development of trade
Allopatric speciation requires?
geographic isolation.
