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

The Evidence for Evolution02:55

The Evidence for Evolution

47.7K
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.
47.7K
Convergent Evolution01:54

Convergent Evolution

31.5K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
31.5K
Range00:59

Range

13.9K
The range is one of the measures of variation. It can be defined as the difference between a dataset's highest and lowest values. For example, in the study of seven 16-ounce soda cans, the filled volume of soda was measured, thus producing the following amount (in ounces) of soda:
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
13.9K
Eukaryotic Evolution01:24

Eukaryotic Evolution

40.3K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
40.3K
Synteny and Evolution02:31

Synteny and Evolution

3.8K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.8K
Variation: Normal Distribution, Range, and Standard Deviation02:32

Variation: Normal Distribution, Range, and Standard Deviation

27.0K
In the field of psychology, there are several ways to organize measurements of a trait, feature, or characteristic (i.e., variables). Qualitative data, such as ethnicity, can be tabulated into a frequency count to provide information about the proportion, as well as the variety of groups in a sample or population. On the other hand, researchers can perform a wider set of calculations on quantitative data. The mean, mode, and median, for instance, are central tendency measures to identify a...
27.0K

You might also read

Related Articles

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

Sort by
Same authorSame journal

Can habitat modification in the native range promote invasion?

Trends in ecology & evolution·2026
Same author

Eco-evolutionary context modifies a destructive plant invader's response to climate.

The New phytologist·2026
Same author

Summer Rainfall Drives Adaptation with Gene Flow in a Widespread Butterfly.

Molecular ecology·2026
Same author

Precipitation variability interacts with mean precipitation to restructure a semiarid grassland community.

Ecology·2026
Same author

A STAT1-Knockout Mouse Model for Chapare Virus Infection and Pathogenesis.

Viruses·2026
Same author

Nose to the grindstone: The role of task effort in elementary-aged students' text generation.

School psychology (Washington, D.C.)·2026

Related Experiment Video

Updated: Jan 22, 2026

Natural Killer NK and CAR-NK Cell Expansion Method using Membrane Bound-IL-21-Modified B Cell Line
11:02

Natural Killer NK and CAR-NK Cell Expansion Method using Membrane Bound-IL-21-Modified B Cell Line

Published on: February 8, 2022

6.3K

How Evolution Modifies the Variability of Range Expansion.

Jennifer L Williams1, Ruth A Hufbauer2, Tom E X Miller3

  • 1Department of Geography and Biodiversity Research Centre, University of British Columbia, 1984 West Mall, Vancouver, BC, V6T 1Z2, Canada.

Trends in Ecology & Evolution
|July 6, 2019
PubMed
Summary
This summary is machine-generated.

Evolutionary processes shape how quickly populations spread and the variation between them. This study provides a framework to predict how evolution influences range expansion variability.

Keywords:
biological invasionsdispersalgene surfingpopulation spreadspatial sorting

More Related Videos

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.4K
FSL Constructs: A Simple Method for Modifying Cell/Virion Surfaces with a Range of Biological Markers Without Affecting their Viability
09:38

FSL Constructs: A Simple Method for Modifying Cell/Virion Surfaces with a Range of Biological Markers Without Affecting their Viability

Published on: August 5, 2011

14.3K

Related Experiment Videos

Last Updated: Jan 22, 2026

Natural Killer NK and CAR-NK Cell Expansion Method using Membrane Bound-IL-21-Modified B Cell Line
11:02

Natural Killer NK and CAR-NK Cell Expansion Method using Membrane Bound-IL-21-Modified B Cell Line

Published on: February 8, 2022

6.3K
Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.4K
FSL Constructs: A Simple Method for Modifying Cell/Virion Surfaces with a Range of Biological Markers Without Affecting their Viability
09:38

FSL Constructs: A Simple Method for Modifying Cell/Virion Surfaces with a Range of Biological Markers Without Affecting their Viability

Published on: August 5, 2011

14.3K

Area of Science:

  • Ecology
  • Evolutionary Biology
  • Population Genetics

Background:

  • Eco-evolutionary theory posits that rapid evolution can accelerate population spread.
  • Experimental studies show evolution impacts variability in spreading populations, but results are contradictory.

Purpose of the Study:

  • To develop a predictive framework for understanding how evolution influences the variability of range expansion.
  • To elucidate the conditions under which evolution alters range expansion variability and the direction of these changes.

Main Methods:

  • Integrating population genetics principles with spread theory.
  • Analyzing the balance between variance-generating (drift) and variance-reducing (selection) evolutionary forces.
  • Investigating the role of factors like leading-edge population size and mating systems.

Main Results:

  • The framework predicts how evolutionary processes modify range expansion variability.
  • Identifies key factors (drift, selection, population size, mating system) influencing variability.
  • Offers hypotheses to reconcile contrasting experimental findings.

Conclusions:

  • Evolution significantly impacts the variability of range expansions.
  • A predictive framework is crucial for understanding eco-evolutionary dynamics in spreading populations.
  • This work provides a roadmap for future research on range expansion variability.