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 Experiment Videos

Patch time allocation and patch sampling by foraging great and blue tits.

Naef-Daenzer1

  • 1Swiss Ornithological Institute

Animal Behaviour
|June 22, 2000
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same journal

Weakly electric fish use self-generated motion to discriminate object shape.

Animal behaviour·2026
Same journal

Galápagos yellow warblers differ in behavioural plasticity in response to traffic noise depending on proximity to road.

Animal behaviour·2026
Same journal

Solo songs, duets and territory defence across seasons in female Galápagos yellow warblers, <i>Setophaga petechia aureola</i>.

Animal behaviour·2026
Same journal

Bayesian updating for self-assessment explains social dominance and winner-loser effects.

Animal behaviour·2026
Same journal

Is there evidence for the Bruce effect in white-faced capuchins?

Animal behaviour·2026
Same journal

Do greater spear-nosed bats have societies?

Animal behaviour·2026
See all related articles

Parent birds optimize food delivery by balancing prey availability and distance to the nest. This foraging strategy maximizes offspring survival by ensuring efficient energy transfer during the critical nestling period.

Area of Science:

  • Behavioral Ecology
  • Avian Reproduction
  • Foraging Behavior

Background:

  • Parental provisioning is crucial for offspring survival in birds.
  • Malnutrition can negatively impact chick survival and future breeding success.
  • Central place foraging models guide predictions on optimal prey delivery rates.

Purpose of the Study:

  • To investigate how breeding great tits (Parus major) and blue tits (P. caeruleus) allocate foraging time among food patches.
  • To determine the factors influencing prey delivery rates in nesting birds.
  • To assess if parent birds optimize their foraging efforts to maximize energy delivery to offspring.

Main Methods:

  • Radiotracking was used to monitor the foraging movements of breeding great tits and blue tits.

Related Experiment Videos

  • The density of bird locations in trees was analyzed in relation to prey biomass and distance from the nest.
  • Foraging time allocation and prey delivery rates were quantified during the nestling period.

    • Main Results:

    • Tree profitability (prey biomass) and proximity to the nest significantly influenced foraging time allocation.
    • Parent birds prioritized foraging in richer patches closer to the nest, but also engaged in extensive patch sampling.
    • Despite sampling, overall foraging efficiency was improved compared to uniform patch exploitation.

    Conclusions:

    • Parent tit foraging behavior closely aligns with predictions of maximizing prey delivery rates.
    • The observed foraging strategies balance resource exploitation with exploration to optimize reproductive success.
    • Efficient foraging by parent birds is essential for ensuring chick survival and successful avian reproduction.