Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Microbial Interactions: Parasitism

Microbial Interactions: Parasitism

Parasitism is a form of microbial interaction in which parasitic microbes exploit a host organism for nutrients and shelter, often at the host's expense. Unlike mutualistic relationships, where both organisms benefit, parasitism benefits only the parasite and harms the host.Classification of ParasitesMicrobial parasites are broadly classified based on their location relative to the host.Ectoparasites remain on the host’s surface, such as the skin or outer tissues, drawing nutrients...

You might also read

Related Articles

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

Sort by

Same author

Beyond Visibility: Social Media, Trust, and Responsibility in Oncology.

Journal of immunotherapy and precision oncology·2026

Same author

Ecological stability through nonlinear fluctuations and the portfolio effect.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same author

Association of Health Insurance Literacy on Financial Toxicity Among Adolescent and Young Adult Cancer Patients.

Journal of adolescent and young adult oncology·2026

Same author

Evolutionary Dynamics at the Leading Edge of Biological Invasions.

Bulletin of mathematical biology·2026

Same author

Correction: Sea lice infestation dataset for wild and farmed salmon populations on the Pacific coast of Canada (2001-2023).

Scientific data·2026

Same author

Temperature variation and life history mediate nonlinearity in fluctuations of marine fish populations worldwide.

Nature ecology & evolution·2026

Search research articles

Related Experiment Video

Updated: May 7, 2026

Phenotypic Analysis of Rodent Malaria Parasite Asexual and Sexual Blood Stages and Mosquito Stages

Phenotypic Analysis of Rodent Malaria Parasite Asexual and Sexual Blood Stages and Mosquito Stages

Published on: May 30, 2019

Allee effect from parasite spill-back.

Martin Krkošek¹, Jaime Ashander, L Neil Frazer

¹Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3B2, Canada; and Department of Zoology, University of Otago, Dunedin, New Zealand.

The American Naturalist

|October 11, 2013

Summary

This summary is machine-generated.

Native parasite spill-back from domestic to wild animals can trigger a demographic Allee effect, threatening wildlife populations. This phenomenon, particularly concerning for pink salmon and salmon lice, highlights risks of shared pathogens.

More Related Videos

Detection and Quantification of Plasmodium falciparum in Aqueous Red Blood Cells by Attenuated Total Reflection Infrared Spectroscopy and Multivariate Data Analysis

Detection and Quantification of Plasmodium falciparum in Aqueous Red Blood Cells by Attenuated Total Reflection Infrared Spectroscopy and Multivariate Data Analysis

Published on: November 2, 2018

Author Spotlight: Real-Time Monitoring of Parasite Burden and Host Response

Author Spotlight: Real-Time Monitoring of Parasite Burden and Host Response

Published on: May 31, 2024

Related Experiment Videos

Last Updated: May 7, 2026

Phenotypic Analysis of Rodent Malaria Parasite Asexual and Sexual Blood Stages and Mosquito Stages

Phenotypic Analysis of Rodent Malaria Parasite Asexual and Sexual Blood Stages and Mosquito Stages

Published on: May 30, 2019

Detection and Quantification of Plasmodium falciparum in Aqueous Red Blood Cells by Attenuated Total Reflection Infrared Spectroscopy and Multivariate Data Analysis

Detection and Quantification of Plasmodium falciparum in Aqueous Red Blood Cells by Attenuated Total Reflection Infrared Spectroscopy and Multivariate Data Analysis

Published on: November 2, 2018

Author Spotlight: Real-Time Monitoring of Parasite Burden and Host Response

Author Spotlight: Real-Time Monitoring of Parasite Burden and Host Response

Published on: May 31, 2024

Area of Science:

Ecology
Epidemiology
Conservation Biology

Background:

Pathogen exchange between wild and domestic animals poses risks of novel diseases to wildlife.
Understanding wild host-parasite dynamics with domestic host reservoirs is crucial but limited.
Parasite spill-back from domestic to wild populations can impact wildlife health and conservation.

Purpose of the Study:

To investigate the impact of native parasite spill-back from domestic to wild hosts on wildlife population dynamics.
To model the demographic Allee effect potentially caused by parasite spill-back in wild populations.
To analyze the specific case of pink salmon (Oncorhynchus gorbuscha) and salmon lice (Lepeophtheirus salmonis) concerning parasite spill-back.

Main Methods:

Development of a simple mathematical model to explore parasite spill-back dynamics.
Creation of a second, tailored model for pink salmon and salmon lice systems.
Analysis of host-parasite abundance coupling and its relationship with host population size.

Main Results:

Parasite spill-back can induce a demographic Allee effect in wild host populations.
Spill-back weakens the link between parasite and wild host abundance, especially at low host densities.
Parasites per host increase as wild host populations decline, analogous to generalist predator impacts.

Conclusions:

Parasite spill-back can destabilize wild host populations, leading to potential extirpation.
Allee effects are amplified by high transmission rates, prolonged host overlap, and proximity to wildlife corridors.
Understanding these dynamics is vital for wildlife conservation and managing shared parasite systems.