Dictionary > Parapatric speciation

Parapatric speciation

Definition
noun
A speciation in which the zones of two diverging populations are only partially separated that the species may still come in contact or cross the barrier from time to time, until selection for specific behaviours or certain isolating mechanisms will eventually prevent them from interbreeding.
Supplement
This speciation is exemplified by the Ensatina salamanders, which form a ring round the Central Valley in California.
Word origin: Gk para-, comb. form repr. pará (prep.) beside, alongside of, by, beyond + Greek patrā, fatherland.
Compare: allopatric speciation, peripatric speciation, sympatric speciation.

See also: speciation, genetic isolation.


You will also like...

Homeostasis by water regulation
Homeostasis of Organism Water Regulation

Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

vitamins
A Balanced Vitamin Diet – Vitamins A – K

A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

Biosecurity and Biocontrol
Biosecurity and Biocontrol

This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..

Genetics – Lesson Outline & Worksheets
Genetics – Lesson Outline & Worksheets

  Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and ..

DNA carries genes coding for proteins
Genetic Information and Protein Synthesis

Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..

Balanced Diet
A Balanced Diet – Minerals and Proteins

Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..