Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

7.7K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
7.7K
Divergence and Curl01:15

Divergence and Curl

3.2K
The divergence of a vector field at a point is the net outward flow of the flux out of a small volume through a closed surface enclosing the volume, as the volume tends to zero. More practically, divergence measures how much a vector field spreads out or diverges from a given point. For an outgoing flux, conventionally, the divergence is positive. The diverging point is often called the "source" of the field. Meanwhile, the negative divergence of a vector field at a point means that the vector...
3.2K
Divergence and Stokes' Theorems01:06

Divergence and Stokes' Theorems

3.7K
The divergence and Stokes' theorems are a variation of Green's theorem in a higher dimension. They are also a generalization of the fundamental theorem of calculus. The divergence theorem and Stokes' theorem are in a way similar to each other; The divergence theorem relates to the dot product of a vector, while Stokes' theorem relates to the curl of a vector. Many applications in physics and engineering make use of the divergence and Stokes' theorems, enabling us to write...
3.7K
Gene Duplication and Divergence02:37

Gene Duplication and Divergence

8.0K
The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was  generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
8.0K
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

46.0K
VSEPR Theory for Determination of Electron Pair Geometries
46.0K
Divergence and Curl of Electric Field01:25

Divergence and Curl of Electric Field

7.2K
The divergence of a vector is a measure of how much the vector spreads out (diverges) from a point. For example, an electric field vector diverges from the positive charge and converges at the negative charge. The divergence of an electric field is derived using Gauss's law and is equal to the charge density divided by the permittivity of space. Mathematically, it is expressed as
7.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Glaucoma and Systemic Neurodegenerative Diseases: The Brain-Eye Continuum.

Journal of current glaucoma practice·2026
Same author

Impact of Advanced Maternal Age on Laboratory Markers in Preeclamptic Pregnancies: A Cross-Sectional Study.

Obstetrics and gynecology international·2026
Same author

Viral necrotising retinitis with frosted branch angiitis: rapid progression into bilateral combined retinal detachment - a management challenge.

BMJ case reports·2026
Same author

Artificial Intelligence-Guided Surgical Planning in Glaucoma: A Systematic Review Bridging Evidence and Clinical Practice.

Cureus·2026
Same author

Development of artificially intelligent tool for analysis and prediction of myopia progression among school-going children.

Trials·2026
Same author

Zn-Ion Storage in an Anode-Protected High-Performance Aqueous Organic Zinc Ion Battery.

Small (Weinheim an der Bergstrasse, Germany)·2026

Related Experiment Video

Updated: Feb 8, 2026

Major Components of the Light Microscope
08:08

Major Components of the Light Microscope

Published on: July 30, 2008

24.7K

Colour pattern component phenotypic divergence can be predicted by the light environment.

Alexandrea M Kranz1, Gemma L Cole1, Priti Singh1

  • 1Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong, Vic, 3216, Australia.

Journal of Evolutionary Biology
|June 28, 2018
PubMed
Summary

Sexually selected color patterns in guppies evolved across generations in different light environments. These changes enhance visual communication efficiency, supporting the sensory drive hypothesis for animal coloration.

Keywords:
Poecilia reticulatacolour patternslight environmentsensory drivevisionvisual communication

More Related Videos

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

12.5K
Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications
10:45

Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications

Published on: September 29, 2016

13.6K

Related Experiment Videos

Last Updated: Feb 8, 2026

Major Components of the Light Microscope
08:08

Major Components of the Light Microscope

Published on: July 30, 2008

24.7K
A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

12.5K
Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications
10:45

Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications

Published on: September 29, 2016

13.6K

Area of Science:

  • Evolutionary biology
  • Animal behavior
  • Sensory ecology

Background:

  • The sensory drive hypothesis posits that environmental conditions shape the evolution of animal signals.
  • Sexual selection favors efficient visual communication, leading to changes in color patterns.
  • Previous research lacked experimental evidence on multi-generational color pattern evolution under varying light.

Purpose of the Study:

  • To experimentally test how different light environments influence the evolution of male guppy color patterns over multiple generations.
  • To investigate if color pattern changes increase visual communication efficiency in distinct habitats.
  • To determine if phenotypic diversification of visual signals is driven by environmental conditions during signal reception.

Main Methods:

  • Replicated populations of guppies (Poecilia reticulata) were exposed to three distinct ambient light environments for multiple generations.
  • Male color pattern components were analyzed for changes over time and across different light conditions.
  • Visual modeling was used to assess color patch characteristics (chroma, hue, luminance) from the female guppy perspective.

Main Results:

  • Male guppy color patches exhibited significant changes within populations over generations.
  • Phenotypic differences in color patterns were observed among the three light environments.
  • Visual modeling indicated that changes in chroma, hue, and luminance explained most observed color pattern variations.

Conclusions:

  • Environmental conditions, specifically light environments, can directly or indirectly drive the diversification of visual signals within species.
  • The study provides experimental support for the sensory drive hypothesis in the context of sexually selected color patterns.
  • Guppy color patterns evolve to optimize visual communication efficiency tailored to specific light conditions.