Find Your Free Essay Examples

There are many factors which lead to speciation in environment, they are:

A species is a group of organisms showing similar features and can interbreed among themself to produce their offspring.Whereas speciation is a process of formation of new species from existing species as they evolve due to certain factors like geographical factors. They formed species are reproductively isolated from their previous species i.e, they cannot interbreed among themselves.

There are many factors which lead to speciation in environment, they are:

There are several advantages of speciation they are:

This type of speciation happens when two populations of the same species become isolated from each other due to geographic factor. As speciation is a slow process due to which populations evolve into different species. A species is defined as a population which can interbreed among themself, so during the speciation process population form two or more distinct species that can no longer interbreed among themself.

It is a major example of allopatric speciation that occurs in Galapagos finches that charles darwin. All total there are 15 types of finches on the Galapagos islands and all of them have specific features like beak for eating different types of food, but all finches have common ancestors, because of isolation to different islands they evolved. The birds who survive successfully become prevalent in their environment and they form a variety of species. This evolution is known as adaptive evolution.

When they are formed they create a natural barrier between the squirrels living in the area. Squirrels populations were separated due to geographical changes and they got distributed in different areas and became two different species.

Speciation occurs when two groups of the same species who live in the same geographical location, but they evolve differently till they can no longer interbreed and they are considered as different species. This type of speciation is seen in different types of organisms like bacteria,fish, apple maggot fly. But it is difficult to find when sympatric evolution occurred or occurring in nature. It elove the population of new species when they are divided by geographical barriers. This evolution happens without any geographical isolation , under this evolution change in chromosomes occurs.

1.Allopatric is a speciation from a physical barrier.

It is a process under which  groups of organisms showing similar features can interbreed among themself to produce their offspring. Whereas speciation is a process of formation of new species from existing species as they evolve due to certain factors like geographical factors.

This type of speciation happens when two populations of the same species become isolated from each other due to geographic factor. As speciation is a slow process due to which populations evolve into different species.

This type of speciation occurs when two groups of the same species who live in the same geographical location, but they evolve differently till they can no longer interbreed and they are considered as different species.

There are several factors affecting speciation are:

1. Geographical isolation is needed.

1. Geographical isolation is not needed.

2. Natural selection is a major differentiation method.

2. Polyploidy is a major selection method.

3.Creation of new species processes is fast here.

3. Under autopolyploidy the process is fast and under allopolyploidy this method is slow.

4.It is commonly seen in both plants and animals.

5.Example: Darwin finches, Grand canyons.