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

Trophic Efficiency00:46

Trophic Efficiency

25.4K
Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.
25.4K
Symbiosis00:58

Symbiosis

37.7K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
37.7K
Predator-Prey Interactions02:39

Predator-Prey Interactions

21.8K
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.
21.8K
Pharmacodynamic Models: Direct Effect Model and Indirect Response Model01:29

Pharmacodynamic Models: Direct Effect Model and Indirect Response Model

33
Pharmacodynamic models are essential tools in understanding the relationship between drug concentrations and their effects on biological systems. By characterizing the dynamics of drug action, these models guide dose selection, optimize therapeutic efficacy, and inform the development of new drugs. Two major classes of pharmacodynamic models include direct effect and indirect response models.Direct Effect ModelsDirect effect models describe the immediate relationship between drug concentration...
33
Trophic Levels01:35

Trophic Levels

38.1K
All organisms in an ecosystem occupy a trophic level in the food chain. The lowest level consists of primary producers, which synthesize their food from either solar or chemical energy. Each subsequent level obtains energy from the levels below. Detritivores can occupy any of the levels above primary producers.
38.1K
Ecological Niches02:02

Ecological Niches

27.0K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
27.0K

You might also read

Related Articles

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

Sort by
Same author

A tiger is not always a satyr: role of male mating behaviour in interspecific mating interactions between Aedes aegypti and Aedes albopictus.

Parasites & vectors·2026
Same author

A digital imagery-competing task intervention for stopping intrusive memories in trauma-exposed health-care staff during the COVID-19 pandemic in the UK: a Bayesian adaptive randomised clinical trial.

The lancet. Psychiatry·2026
Same author

The impact of structured higher-order interactions on ecological network stability.

Theoretical ecology·2026
Same author

Polygenic viral factors enable efficient mosquito-borne transmission of African Zika virus.

Nature communications·2025
Same author

Climate change, urbanisation and transmission potential: Aedes aegypti mosquito projections forecast future arboviral disease hotspots in Brazil.

PLoS neglected tropical diseases·2025
Same author

Novel stressors and trait variation determine X-linked meiotic drive frequency.

Proceedings. Biological sciences·2025

Related Experiment Video

Updated: Feb 22, 2026

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

14.0K

Trophic interaction modifications: an empirical and theoretical framework.

J Christopher D Terry1, Rebecca J Morris1,2, Michael B Bonsall1,3

  • 1Department of Zoology, University of Oxford, Oxford, OX1 3PS, UK.

Ecology Letters
|September 19, 2017
PubMed
Summary
This summary is machine-generated.

Ecological models often miss how species modify consumer-resource interactions. This study introduces a new approach to represent these non-trophic interactions, improving ecological system dynamics modeling.

Keywords:
Food websindirect effectsinteraction strengthmechanistic modelsnon-trophic interactionpopulation dynamicstrait-mediated indirect interactiontrophic interaction modificationtrophic interactions

More Related Videos

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity

Published on: March 13, 2014

19.5K
Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems
07:41

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Published on: July 30, 2019

8.0K

Related Experiment Videos

Last Updated: Feb 22, 2026

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

14.0K
Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity

Published on: March 13, 2014

19.5K
Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems
07:41

Modeling the Size Spectrum for Macroinvertebrates and Fishes in Stream Ecosystems

Published on: July 30, 2019

8.0K

Area of Science:

  • Ecology
  • Community Ecology
  • Ecological Modeling

Background:

  • Consumer-resource interactions are fundamental in ecology.
  • Non-trophic interactions, or 'trophic interaction modifications', significantly influence community dynamics but are often omitted from models.
  • Existing frameworks struggle to adequately represent these complex interactions.

Purpose of the Study:

  • To advocate for and extend a novel approach to model trophic interaction modifications.
  • To provide a unified framework for representing non-trophic interactions.
  • To develop metrics for quantifying the strength of interaction modifications.

Main Methods:

  • Developing a conceptual framework emphasizing the role of modifying species.
  • Defining and demonstrating metrics for interaction modification strength.
  • Utilizing three-species model systems for empirical validation.

Main Results:

  • The proposed approach effectively integrates non-trophic interactions into ecological models.
  • Developed metrics capture complementary aspects of interaction modifications.
  • Demonstrated the approach's applicability across various empirical contexts.

Conclusions:

  • The trophic interaction modification approach offers a powerful tool for ecological research.
  • This framework can unite empirical and theoretical studies, addressing ecological complexity.
  • Identified future research needs include multi-level modifier experiments and network distribution analyses.