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Related Concept Videos

Speciation Rates01:07

Speciation Rates

Overview
Genetics of Speciation02:16

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
Formation of Species01:31

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.
Gene Flow02:39

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
Hybrid Zones02:29

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
What is a Species?01:17

What is a Species?

Overview

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Related Experiment Video

Updated: May 10, 2026

Incremental Temperature Changes for Maximal Breeding and Spawning in Astyanax mexicanus
06:36

Incremental Temperature Changes for Maximal Breeding and Spawning in Astyanax mexicanus

Published on: February 14, 2021

How does climate influence speciation?

Xia Hua1, John J Wiens

  • 1Department of Ecology and Evolution, Stony Brook University, Stony Brook, NY 11794, USA. huaxia1985@gmail.com

The American Naturalist
|June 20, 2013
PubMed
Summary
This summary is machine-generated.

Climate variation drives speciation. This study models how niche conservatism and divergence occur under different climate changes, revealing extinction

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Last Updated: May 10, 2026

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Published on: February 14, 2021

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Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
07:54

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Published on: March 9, 2021

Area of Science:

  • Evolutionary Biology
  • Climate Science
  • Theoretical Ecology

Background:

  • Climate variation is a key driver of speciation.
  • Theoretical speciation models lack climate considerations.
  • Empirical studies rely on informal climate-speciation models.

Purpose of the Study:

  • Develop a quantitative model for speciation.
  • Test the niche conservatism model of speciation.
  • Examine climate conditions favoring niche conservatism and divergence.

Main Methods:

  • Quantitative modeling of speciation.
  • Analysis of niche conservatism and divergence.
  • Simulation of climate change scenarios.

Main Results:

  • Niche conservatism can be a significant factor in speciation.
  • Directional climate change favors niche conservatism in species with low lability.
  • Climatic oscillations promote niche divergence in species with high lability.
  • Population extinction is a crucial component of speciation.

Conclusions:

  • Ecological similarity over time (niche conservatism) plays a vital role in speciation.
  • Climate change dynamics influence the mode of speciation based on species' niche lability.
  • Population extinction is integral to the speciation process.