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Related Concept Videos

Range00:59

Range

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...
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.
Expansion and Contraction in Masonry Walls01:19

Expansion and Contraction in Masonry Walls

Masonry walls are subject to slight expansion and contraction due to variations in temperature and moisture. Thermal movement in masonry is relatively straightforward to measure and plan for. On the other hand, moisture movement poses more of a challenge. New clay masonry units typically absorb water and expand over time under normal environmental conditions. Conversely, new concrete masonry units tend to shrink as they lose the excess moisture acquired during their production process.
To...
Speciation Rates01:07

Speciation Rates

Overview
Related Rates01:18

Related Rates

When two or more physical quantities are linked by a single relationship, a change in one variable necessarily affects the others. This interdependence forms the basis of related rates analysis, which examines how different quantities change with respect to time. A classic physical example is an expanding balloon, where the size of the balloon changes continuously as air is added.For a hot air balloon, the inflated envelope is commonly idealized as a perfect sphere to simplify mathematical...
Factors Affecting Respiration01:24

Factors Affecting Respiration

Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:

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Related Experiment Video

Updated: May 29, 2026

An Emerging Target Paradigm to Evoke Fast Visuomotor Responses on Human Upper Limb Muscles
09:27

An Emerging Target Paradigm to Evoke Fast Visuomotor Responses on Human Upper Limb Muscles

Published on: August 25, 2020

Risky movement increases the rate of range expansion.

K A Bartoń1, T Hovestadt, B L Phillips

  • 1Field Station Fabrikschleichach, Biozentrum, University of Würzburg, Rauhenebrach, Germany. kamil.barton@uni-wuerzburg.de

Proceedings. Biological Sciences
|September 30, 2011
PubMed
Summary

Individual movement strategies impact survival and range expansion. Evolving movement prioritizes rapid range expansion over individual survival, suggesting new connectivity metrics for conservation are needed.

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Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
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Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion

Published on: October 20, 2023

Related Experiment Videos

Last Updated: May 29, 2026

An Emerging Target Paradigm to Evoke Fast Visuomotor Responses on Human Upper Limb Muscles
09:27

An Emerging Target Paradigm to Evoke Fast Visuomotor Responses on Human Upper Limb Muscles

Published on: August 25, 2020

Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
07:16

Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion

Published on: October 20, 2023

Area of Science:

  • Ecology
  • Evolutionary Biology
  • Mathematical Modeling

Background:

  • Individual movement behavior is crucial for survival and dispersal.
  • Understanding how movement influences population dynamics and range expansion is key.

Purpose of the Study:

  • To model the link between inter-patch movement behavior and population dynamics.
  • To explore how individual dispersal strategies affect survival and range expansion rates.
  • To investigate the evolutionary pressures on movement strategies at expanding range fronts.

Main Methods:

  • Developed a simple mathematical model linking movement rules to population dynamics.
  • Simulated individual movement trajectories and their impact on dispersal success.
  • Conducted evolutionary simulations to observe the emergence of movement strategies.

Main Results:

  • Individual survival is maximized by direct, straight-line movement to new patches.
  • The most rapid population range expansion occurs when individuals delay directional movement.
  • Evolved movement strategies at expanding fronts favor faster range expansion over individual survival.

Conclusions:

  • Movement strategies that enhance individual survival do not necessarily promote the fastest range expansion.
  • Evolutionary processes at expanding range fronts select for strategies that maximize spread rate.
  • Conservation efforts for range-shifting species require new connectivity indices that measure landscape permeability for dispersal.