Related Experiment Video
Updated: Jun 23, 2026
07:26
Foraging Path-length Protocol for Drosophila melanogaster Larvae
Published on: April 23, 2016
Optimal foraging for multiple resources in several food species
Geerten M Hengeveld1, Frank van Langevelde, Thomas A Groen
1Department of Plant-Animal Interactions, Netherlands Institute of Ecology (NIOO-KNAW), Centre for Limnology, Rijksstraatweg 6, 3631 AC Nieuwersluis, The Netherlands. g.hengeveld@nioo.knaw.nl
The American Naturalist
|May 9, 2009
Summary
Animals often need multiple food sources for balanced nutrition. This study models optimal foraging for concurrent resource acquisition across diverse food species to maximize intake.
Area of Science:
- Ecology
- Behavioral Ecology
- Evolutionary Biology
Background:
- Nutrient concentrations in forage are often imbalanced relative to animal needs.
- Animals frequently consume multiple food species to achieve balanced resource intake.
Purpose of the Study:
- To extend optimal foraging theory to model concurrent foraging for multiple resources from diverse food species.
- To develop a model that balances resource intake and maximizes nutrient acquisition.
Main Methods:
- Developed a model representing resource amount by its usage time.
- Incorporated hierarchical optimization at patch and foraging path levels.
- Analyzed resource intake and ratios between food species.
Main Results:
- Resource balancing is achieved at the foraging path level.
- Intake maximization occurs at the nested patch level.
- Food species choice depends on intake and resource ratio differences.
Conclusions:
- Optimal foraging models can be extended to multiple resources and species.
- Hierarchical optimization strategies balance resources and maximize intake.
- Patch residence time is determined by local intake rate under free choice.
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