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

Population Growth00:57

Population Growth

Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
Predator-Prey Interactions02:39

Predator-Prey Interactions

Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
Optimal Foraging00:48

Optimal Foraging

How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
Microbial Interactions: Predation01:28

Microbial Interactions: Predation

Microbial predation refers to the process by which one microorganism kills and consumes another to obtain nutrients and energy. It encompasses both bacterial and protozoan predators. This interaction plays a crucial role in shaping microbial communities and regulating nutrient cycling.Bacterial Predators: Epibiotic vs. EndobioticBacterial predators are classified based on their mode of attack as either epibiotic or endobiotic. Epibiotic predators, such as Vampirococcus, attach to the surface of...
Fixed Action Patterns01:06

Fixed Action Patterns

A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
Modeling with Differential Equations01:25

Modeling with Differential Equations

Population dynamics can be described mathematically by considering the population size P(t) as a function of time. The rate of change of the population is then represented by the derivative of P(t). A simple assumption is that the rate of growth is proportional to the size of the population itself. This leads to an exponential growth model, where the population increases rapidly without bound. While this is a useful first approximation, it does not reflect realistic long-term...

You might also read

Related Articles

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

Sort by
Same author

Glucose-driven intra- and inter-islet beta cell synchronization in pancreatic tissue slices.

Scientific reports·2026
Same author

Gap Junctional Versus Paracrine Signaling in the Human Lens Epithelium: Analysis Based on Multicellular Ca²⁺ Imaging and Computational Modeling.

Investigative ophthalmology & visual science·2025
Same author

Spatially bound functional heterogeneity drives modular organization in β-cell networks.

Biophysical journal·2025
Same author

Ultrafast multicellular calcium imaging of calcium spikes in mouse beta cells in tissue slices.

Acta physiologica (Oxford, England)·2025
Same author

Calcium Imaging and Analysis in Beta Cells in Acute Mouse Pancreas Tissue Slices.

Methods in molecular biology (Clifton, N.J.)·2024
Same author

The role of anaplerotic metabolism of glucose and glutamine in insulin secretion: A model approach.

Biophysical chemistry·2024

Related Experiment Video

Updated: May 7, 2026

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents
06:25

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

Published on: May 16, 2025

Spatiotemporal patterns provoked by environmental variability in a predator-prey model.

Maja Fras1, Marko Gosak

  • 1Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, SI-2000 Maribor, Slovenia.

Bio Systems
|September 24, 2013
PubMed
Summary

Environmental variability can drive the formation of ecological patterns in predator-prey models. This pattern formation shows a resonance effect with variability strength and requires specific prey growth rate conditions.

Keywords:
Diversity-induced resonanceEnvironmental variabilityPredator–preySpatiotemporal pattern

More Related Videos

Methodology for Developing Life Tables for Sessile Insects in the Field Using the Whitefly, Bemisia tabaci, in Cotton As a Model System
09:23

Methodology for Developing Life Tables for Sessile Insects in the Field Using the Whitefly, Bemisia tabaci, in Cotton As a Model System

Published on: November 1, 2017

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter
10:20

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter

Published on: March 12, 2013

Related Experiment Videos

Last Updated: May 7, 2026

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents
06:25

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

Published on: May 16, 2025

Methodology for Developing Life Tables for Sessile Insects in the Field Using the Whitefly, Bemisia tabaci, in Cotton As a Model System
09:23

Methodology for Developing Life Tables for Sessile Insects in the Field Using the Whitefly, Bemisia tabaci, in Cotton As a Model System

Published on: November 1, 2017

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter
10:20

Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter

Published on: March 12, 2013

Area of Science:

  • Ecology
  • Nonlinear Dynamics
  • Mathematical Biology

Background:

  • Spatiotemporal pattern formation is a key phenomenon in ecological and nonlinear systems.
  • Spatial inhomogeneities significantly influence population dynamics.
  • Environmental heterogeneity is a crucial factor in ecological modeling.

Purpose of the Study:

  • To investigate the impact of environmental variability on pattern formation in a spatially extended predator-prey model.
  • To analyze how random spatial variations in prey growth rates affect ecological patterns.
  • To understand the role of heterogeneous environments in species distribution.

Main Methods:

  • Utilized a predator-prey model with a Holling III functional response.
  • Introduced random spatial variations in the prey's intrinsic growth rate parameter.
  • Analyzed pattern formation near the Hopf bifurcation point.

Main Results:

  • Environmental variability can induce pattern formation near the Hopf bifurcation.
  • Pattern coherence exhibits a resonance-like dependence on the strength of variability.
  • Pattern formation is contingent upon sufficiently large spatial regions with high prey growth rates.

Conclusions:

  • Environmental variability can act as a significant mechanism for population pattern formation.
  • Heterogeneous environments play a critical role in shaping ecological dynamics.
  • The findings highlight the importance of considering environmental variability in ecological studies.