Why These Bears “Waste” Food

2021-07-09

[public] 598K views, 37.3K likes, dislikes audio only

Optimal foraging theory means that turning down food is sometimes more efficient than eating it - but even then, what’s “wasted” doesn’t necessarily go to waste.

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To learn more about this topic, start your googling with these keywords:

Foraging: to search widely for food.

Optimal Foraging Theory: A behavioral model that describes how an animal should behave when searching for food.

Surplus Killing: a common behavior exhibited by predators, in which they kill more prey than they can immediately eat and then cache or abandon the remainder.

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CREDITS

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Cameron Duke | Script Writer

Kate Yoshida | Script Editor

Julián Gustavo Gómez | Narrator and Director

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Nathaniel Schroeder | Music

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REFERENCES

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Alcock, J. (2013). Animal behavior : an evolutionary approach. Sinauer, Cop.

Hopkins, J. B. (2013). Use of genetics to investigate socially learned foraging behavior in free-ranging black bears. Journal of Mammalogy, 94(6), 1214–1222. https://doi.org/10.1644/13-mamm-a-009.1

Klinka, D. R., & Reimchen, T. E. (2009). Darkness, Twilight, and Daylight Foraging Success of Bears (Ursus americanus) on Salmon in Coastal British Columbia. Journal of Mammalogy, 90(1), 144–149. https://doi.org/10.1644/07-mamm-a-200.1

Lincoln, A. E., & Quinn, T. P. (2018). Optimal foraging or surplus killing: selective consumption and discarding of salmon by brown bears. Behavioral Ecology, 30(1), 202–212. https://doi.org/10.1093/beheco/ary139

Lounibos, L. P., Makhni, S., Alto, B. W., & Kesavaraju, B. (2008). Surplus Killing by Predatory Larvae of Corethrella appendiculata: Prepupal Timing and Site-Specific Attack on Mosquito Prey. Journal of Insect Behavior, 21(2), 47–54. https://doi.org/10.1007/s10905-007-9103-2

Maupin, J. L. (2001). Superfluous killing in spiders: a consequence of adaptation to food-limited environments? Behavioral Ecology, 12(5), 569–576. https://doi.org/10.1093/beheco/12.5.569

McMahon, B. F., & Evans, R. M. (1992). Foraging Strategies of American White Pelicans. Behaviour, 120(1-2), 69–89. https://doi.org/10.1163/156853992x00219