Resource depletion through primate stone technology

Tool use has allowed humans to become one of the most successful species. However, tool-assisted foraging has also pushed many of our prey species to extinction or endangerment, a technology-driven process thought to be uniquely human. Here, we demonstrate that tool-assisted foraging on shellfish by...

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Main Authors: Luncz, Lydia V, Tan, Amanda, Haslam, Michael, Kulik, Lars, Proffitt, Tomos, Malaivijitnond, Suchinda, Gumert, Michael David
Other Authors: School of Humanities and Social Sciences
Format: Journal Article
Language:English
Published: 2017
Subjects:
Online Access:https://hdl.handle.net/10356/86567
http://hdl.handle.net/10220/44053
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author Luncz, Lydia V
Tan, Amanda
Haslam, Michael
Kulik, Lars
Proffitt, Tomos
Malaivijitnond, Suchinda
Gumert, Michael David
author2 School of Humanities and Social Sciences
author_facet School of Humanities and Social Sciences
Luncz, Lydia V
Tan, Amanda
Haslam, Michael
Kulik, Lars
Proffitt, Tomos
Malaivijitnond, Suchinda
Gumert, Michael David
author_sort Luncz, Lydia V
collection NTU
description Tool use has allowed humans to become one of the most successful species. However, tool-assisted foraging has also pushed many of our prey species to extinction or endangerment, a technology-driven process thought to be uniquely human. Here, we demonstrate that tool-assisted foraging on shellfish by long-tailed macaques (Macaca fascicularis) in Khao Sam Roi Yot National Park, Thailand, reduces prey size and prey abundance, with more pronounced effects where the macaque population size is larger. We compared availability, sizes and maturation stages of shellfish between two adjacent islands inhabited by different-sized macaque populations and demonstrate potential effects on the prey reproductive biology. We provide evidence that once technological macaques reach a large enough group size, they enter a feedback loop – driving shellfish prey size down with attendant changes in the tool sizes used by the monkeys. If this pattern continues, prey populations could be reduced to a point where tool-assisted foraging is no longer beneficial to the macaques, which in return may lessen or extinguish the remarkable foraging technology employed by these primates.
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spelling ntu-10356/865672020-03-07T12:10:38Z Resource depletion through primate stone technology Luncz, Lydia V Tan, Amanda Haslam, Michael Kulik, Lars Proffitt, Tomos Malaivijitnond, Suchinda Gumert, Michael David School of Humanities and Social Sciences Primate stone technology Tool-assisted foraging Tool use has allowed humans to become one of the most successful species. However, tool-assisted foraging has also pushed many of our prey species to extinction or endangerment, a technology-driven process thought to be uniquely human. Here, we demonstrate that tool-assisted foraging on shellfish by long-tailed macaques (Macaca fascicularis) in Khao Sam Roi Yot National Park, Thailand, reduces prey size and prey abundance, with more pronounced effects where the macaque population size is larger. We compared availability, sizes and maturation stages of shellfish between two adjacent islands inhabited by different-sized macaque populations and demonstrate potential effects on the prey reproductive biology. We provide evidence that once technological macaques reach a large enough group size, they enter a feedback loop – driving shellfish prey size down with attendant changes in the tool sizes used by the monkeys. If this pattern continues, prey populations could be reduced to a point where tool-assisted foraging is no longer beneficial to the macaques, which in return may lessen or extinguish the remarkable foraging technology employed by these primates. Published version 2017-11-15T07:38:44Z 2019-12-06T16:24:52Z 2017-11-15T07:38:44Z 2019-12-06T16:24:52Z 2017 Journal Article Luncz, L. V., Tan, A., Haslam, M., Kulik, L., Proffitt, T., Malaivijitnond, S., et al. (2017). Resource depletion through primate stone technology. eLife, 6, e23647-. 2050-084X https://hdl.handle.net/10356/86567 http://hdl.handle.net/10220/44053 10.7554/eLife.23647 en eLife © 2017 Luncz et al (Published by eLife Sciences Publications). This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited. 16 p. application/pdf
spellingShingle Primate stone technology
Tool-assisted foraging
Luncz, Lydia V
Tan, Amanda
Haslam, Michael
Kulik, Lars
Proffitt, Tomos
Malaivijitnond, Suchinda
Gumert, Michael David
Resource depletion through primate stone technology
title Resource depletion through primate stone technology
title_full Resource depletion through primate stone technology
title_fullStr Resource depletion through primate stone technology
title_full_unstemmed Resource depletion through primate stone technology
title_short Resource depletion through primate stone technology
title_sort resource depletion through primate stone technology
topic Primate stone technology
Tool-assisted foraging
url https://hdl.handle.net/10356/86567
http://hdl.handle.net/10220/44053
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