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Isolation mechanisms
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Name: Mayra Espitia Moreno, Mariana Bello Bogotá
Curse: 9F
Isolating Mechanisms
What are they?
Isolating mechanisms are the ways in which groups of organisms become separated for long enough to develop into different species
Images
Images
Types
There are seven types of isolating mechanisms but today we are going to explain only tree of them.
Geographic
Geographic isolation is a type of reproductive isolation that occurs when a geographic barrier separates two populations of a species.
Geographic Isolation
Behavioral
Occurs when members of a population diverge in their behaviors over time. Eventually, they are unable to mate and become separate.
Behavioral Isolation
Temporal
Occurs when two populations reproduce at different times of the day or in different seasons.
Temporal Isolation
Speciation
Is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.
Speciation
An example of speciation is the Galápagos finch. Different species of these birds live on different islands in the Galápagos archipelago, located in the Pacific Ocean off South America. The finches are isolated from one another by the ocean. Over millions of years, each species of finch developed a unique beak that is especially adapted to the kinds of food it eats.
Impact in the evolution
The isolating mechanisms trigger the speciation that in a certain way is a evolution cause is a new specie that evolves from an older specie.