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Related Experiment Video

Updated: Jun 21, 2025

Assaying Predatory Feeding Behaviors in Pristionchus and Other Nematodes

Assaying Predatory Feeding Behaviors in Pristionchus and Other Nematodes

Published on: September 4, 2016

Social predation by a nudibranch mollusc.

Kate Otter¹, Saida Gomidova², Paul S Katz³

¹Neuroscience and Behavior Graduate Program, University of Massachusetts Amherst, Amherst MA, USA.

Biorxiv : the Preprint Server for Biology

|July 15, 2024

Summary

Social predation in Berghia stephanieae involves group feeding on sea anemones, persisting regardless of hunger. Individuals lack stable roles, exhibiting temporary behaviors during group predation events.

Keywords:

Berghia stephanieae dangerous prey foraging behavior producing satiety-dependence scrounging

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Last Updated: Jun 21, 2025

Assaying Predatory Feeding Behaviors in Pristionchus and Other Nematodes

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Published on: September 4, 2016

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Published on: September 25, 2023

A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms

A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms

Published on: January 11, 2015

Area of Science:

Marine Biology
Behavioral Ecology
Predator-Prey Dynamics

Background:

Social predation is a widespread feeding strategy across the animal kingdom.
Predator coordination and role stability vary significantly in social feeding behaviors.
The nudibranch mollusc, Berghia stephanieae, is a specialist predator of the sea anemone Exaiptasia diaphana.

Purpose of the Study:

To characterize the social predation behaviors of Berghia stephanieae.
To investigate the influence of food deprivation on social feeding strategies.
To identify aggregation cues and role stability in group predation.

Main Methods:

Experimental assays to test for aggregation cues (slime trails, anemone injury, conspecific feeding).
Observational studies of group predation events.
Modeling approaches to analyze social dynamics.

Main Results:

Berghia stephanieae engages in group predation of Exaiptasia diaphana.
Social feeding extent was not affected by food deprivation, indicating a consistent strategy.
No specific aggregation cues were identified, and individuals exhibited fission-fusion dynamics with temporary roles.

Conclusions:

Berghia stephanieae exemplifies a specialist predator of hazardous prey with loosely organized social feeding.
This social feeding behavior is consistent across different hunger states.
While temporary roles emerge during predation, the cues for aggregation remain unknown.