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Related Concept Videos

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.

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New Variations for Strategy Set-shifting in the Rat
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Formation of Different Strategies of Competitive Foraging Behavior in Rats.

E P Murtazina1, Yu A Ginsburg-Shik2, S S Pertsov2

  • 1P. K. Anokhin Institute of Normal Physiology, Moscow, Russia. e.murtazina@nphys.ru.

Bulletin of Experimental Biology and Medicine
|April 11, 2023
PubMed
Summary

Rats exhibit distinct foraging strategies, with "donors" learning faster and showing high activity, while "kleptoparasites" learn slower and rely on others. These competitive behaviors emerge during instrumental foraging tasks.

Keywords:
competitiondonorforaging behaviorinstrumental skillkleptoparasite

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Area of Science:

  • Behavioral Ecology
  • Animal Cognition
  • Neuroscience

Background:

  • Competitive interactions are crucial in foraging behavior.
  • Understanding individual differences in resource acquisition strategies is key to behavioral ecology.
  • Instrumental learning paradigms reveal adaptive behaviors in animals.

Purpose of the Study:

  • To investigate competitive interactions and distinct foraging strategies in rats.
  • To identify and characterize different behavioral phenotypes during instrumental foraging.
  • To analyze the emergence and development of these strategies over time.

Main Methods:

  • Paired instrumental foraging experiments with laboratory rats.
  • Observation and quantification of operant actions and foraging activity.
  • Latency measurements and analysis of inter-signal actions.

Main Results:

  • Two distinct groups of rats emerged: 'donors' (predominant operant actions) and 'kleptoparasites' (relying on partners).
  • Intergroup differences in behavior became apparent and increased after 3-4 paired experiments.
  • Donor rats demonstrated faster learning and higher foraging activity with shorter latency compared to kleptoparasites.

Conclusions:

  • Rats develop specialized competitive foraging strategies, namely 'donor' and 'kleptoparasite' roles.
  • These distinct strategies are linked to differences in learning speed, foraging activity, and behavioral patterns.
  • The study highlights the adaptability of rat behavior in social foraging contexts.