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Speciation Rates

Speciation Rates

Formation of Species

Formation of Species

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.

The Evidence for Evolution

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.

What is a Species?

What is a Species?

Gene Flow

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.

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Related Experiment Video

Updated: Nov 21, 2025

In Situ Hybridization Techniques for Paraffin-Embedded Adult Coral Samples

In Situ Hybridization Techniques for Paraffin-Embedded Adult Coral Samples

Published on: August 31, 2018

Speciation in marine environments: Diving under the surface.

Rui Faria^1,2,3, Kerstin Johannesson⁴, Sean Stankowski^3,5

¹CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO, Laboratório Associado, Universidade do Porto, Vairão, Portugal.

Journal of Evolutionary Biology

|January 18, 2021

Summary

This summary is machine-generated.

Understanding marine speciation requires studying diverse species and ecosystems. Advances in technology enable deeper insights into marine evolutionary processes and biodiversity origins.

Keywords:

demographic history dispersal effective population size gene flow genomic architecture geographic isolation hybridization interdisciplinary research natural selection reproductive barriers

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Area of Science:

Marine biology
Evolutionary biology
Speciation research

Background:

Marine speciation is poorly understood compared to terrestrial and freshwater environments.
Technological advancements in maritime engineering and genomics facilitate marine life studies.
A broader study of marine taxa and ecosystems is crucial for a comprehensive understanding.

Discussion:

Six research axes are proposed to advance marine speciation knowledge.
These include studying diverse environments/organisms, identifying reproductive barriers, and understanding genomic architectures.
Further research should focus on evolutionary divergence, hybridization, and interdisciplinary collaboration.

Key Insights:

Marine environments host significant biodiversity, yet speciation processes remain largely unexamined.
Current research highlights the need for expanded taxonomic and ecosystemic scope in marine speciation studies.
Technological progress is key to overcoming challenges in studying marine evolutionary dynamics.

Outlook:

Future research should integrate genomics, evolutionary modeling, and interdisciplinary approaches.
Investigating hybridization and introgression will illuminate speciation pathways.
Addressing these research gaps will enhance our understanding of marine biodiversity origins.