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

Optimal Foraging00:48

Optimal Foraging

12.7K
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.
12.7K
Fruit Development, Structure, and Function01:58

Fruit Development, Structure, and Function

23.7K
Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
23.7K
Norton's Theorem01:14

Norton's Theorem

975
Norton's theorem is a fundamental principle stating that a linear two-terminal circuit can be substituted with an equivalent circuit, which comprises a current source (ⅠN) in parallel with a resistor (RN). Here, ⅠN represents the short-circuit current flowing through the terminals, and RN stands for the input or equivalent resistance at the terminals when all independent sources are deactivated. This implies that the circuit illustrated in Figure (a) can be exchanged with the one depicted...
975
Clamper Circuit01:14

Clamper Circuit

705
A clamper circuit, also known as a DC restorer, represents a specialized variant of the rectifier circuit, notable for its method of taking the output across the diode rather than the capacitor. This configuration lends to several distinctive applications, particularly in handling square wave inputs.
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to...
705
Schemas01:42

Schemas

12.1K
A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
12.1K

You might also read

Related Articles

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

Sort by
Same author

The power of sound: unravelling how acoustic communication shapes group dynamics.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2024
Same author

Mixed-species flock sizes and compositions influence flock members' success in three field experiments with novel feeders.

PloS one·2024
Same author

Influence of social and physical environmental variation on antipredator behavior in mixed-species parid flocks.

PloS one·2023
Same author

Influence of group size on shelter choice in Blaptica dubia cockroaches.

Journal of comparative psychology (Washington, D.C. : 1983)·2023
Same author

Mixed-species groups and the question of dominance in the social ecosystem.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2023
Same author

Mixed-species flock composition matters: interspecific influences on finding novel food in North American parids.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2023

Related Experiment Video

Updated: Oct 31, 2025

A Caenorhabditis elegans Nutritional-status Based Copper Aversion Assay
06:45

A Caenorhabditis elegans Nutritional-status Based Copper Aversion Assay

Published on: July 26, 2017

6.7K

Clark's nutcrackers (Nucifraga columbiana) modify caching behavior when observed.

Todd M Freeberg1

  • 1Department of Psychology, University of Tennessee.

Journal of Comparative Psychology (Washington, D.C. : 1983)
|June 28, 2021
PubMed
Summary

Clark's nutcrackers (Nucifraga columbiana) change their caching behavior when observed by others. They hide more food when watched, demonstrating social awareness in food caching strategies.

More Related Videos

Quantifying Corticolous Arthropods Using Sticky Traps
05:28

Quantifying Corticolous Arthropods Using Sticky Traps

Published on: January 19, 2020

5.6K
Recording Behavioral Responses to Reflection in Crayfish
11:30

Recording Behavioral Responses to Reflection in Crayfish

Published on: May 14, 2010

10.9K

Related Experiment Videos

Last Updated: Oct 31, 2025

A Caenorhabditis elegans Nutritional-status Based Copper Aversion Assay
06:45

A Caenorhabditis elegans Nutritional-status Based Copper Aversion Assay

Published on: July 26, 2017

6.7K
Quantifying Corticolous Arthropods Using Sticky Traps
05:28

Quantifying Corticolous Arthropods Using Sticky Traps

Published on: January 19, 2020

5.6K
Recording Behavioral Responses to Reflection in Crayfish
11:30

Recording Behavioral Responses to Reflection in Crayfish

Published on: May 14, 2010

10.9K

Area of Science:

  • Ornithology
  • Animal Behavior
  • Cognitive Ecology

Background:

  • Clark's nutcrackers (Nucifraga columbiana) are known for their food caching behavior.
  • Understanding social influences on caching is crucial for comprehending animal strategies.

Purpose of the Study:

  • To investigate if Clark's nutcrackers alter their food caching behavior when observed by conspecifics.
  • To determine the effect of social observation on the spatial distribution of cached food items.

Main Methods:

  • Experimental manipulation of observation conditions (observed vs. private).
  • Observation of caching behavior in a controlled cage environment.
  • Quantification of food item placement in visible vs. hidden areas.

Main Results:

  • Nutcrackers cached significantly more food items in hidden locations when observed by a conspecific.
  • In private conditions, caching distribution between hidden and visible areas was roughly equal.
  • Behavioral changes indicate sensitivity to social presence during caching.

Conclusions:

  • Clark's nutcrackers exhibit context-dependent caching strategies influenced by social observation.
  • This sensitivity suggests an awareness of potential social interference or competition.
  • Findings contribute to the understanding of social cognition in corvids.