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Sympatric speciation

Definition

noun

A speciation in which new species evolve from a single ancestral species while inhabiting the same geographic region.


Supplement

Sympatric speciation is more common in plants. For instance, parent plants produce offspring that are polyploid. Hence, the offspring live in the same environment as their parents but are reproductively isolated.

Another example is the rare sympatric speciation in animals, which is the divergence of resident and transient Orca in the northeast Pacific. These two groups of Orca occur in the same habitat but are avoiding each other and they do not interbreed. They have different diets, vocal behaviour, and social structures.


Word origin: roots sym- (meaning same, alike, similar, or fellow) and -patry (meaning homeland or fatherland).

Synonym: sympatry.
Compare: allopatric speciation, peripatric speciation, peripatric speciation.
See also: speciation, genetic isolation.


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Theories - Origin of Life

... Most definitely. I suggest you read http://en.wikipedia.org/wiki/Speciation, and also any included citations if you want to investigate further. ... there are sources which supply many more such examples. Why have these sympatric pairs not proceeded to the point of irreversible reproductive isolation? ...

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by AstraSequi
Tue Mar 27, 2012 2:41 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 888107

Re: Theories - Origin of Life

... reply Most definitely. I suggest you read http://en.wikipedia.org/wiki/Speciation, and also any included citations if you want to investigate further. ... paper points to only one example It asks the question Why have these sympatric pairs not proceeded to the point of irreversible reproductive ...

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by scottie
Tue Mar 13, 2012 3:12 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 888107

Help with Biology Question

... If the Lake copepods are, indeed, a new species, which mechanism of speciation most likely occurred: allopatric or sympatric speciation, and why?

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by killian07
Sun Dec 11, 2011 9:55 pm
 
Forum: General Discussion
Topic: Help with Biology Question
Replies: 2
Views: 1553

3 models for genetic isolation

... that bring about the genetic isolation of a population • Allopatric and sympatric speciation- Something happens (i.e. geographical isolation, ecological isolation) to a population ...

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by hannahzarzar
Wed Aug 31, 2011 5:31 am
 
Forum: Evolution
Topic: 3 models for genetic isolation
Replies: 1
Views: 3547

Re: Ancestor or Contemporary?

... of ancestors, Systematic Zoology 29:119-129; Lararus, 1983, Speciation in pelagic Protista and its study in the microfossil record: a ... series in North America also shows examples of both allopatric and sympatric speciation between the Eocene and the Pleistocene periods.

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by robsabba
Thu Apr 01, 2010 2:40 pm
 
Forum: Evolution
Topic: Ancestor or Contemporary?
Replies: 3
Views: 2960
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