Habitual stone-tool-aided extractive foraging in white-faced capuchins, Cebus capucinus
Habitual stone-tool-aided extractive foraging in white-faced capuchins, Cebus capucinus
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DOI：
10.1098/rsos.181002
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发表时间：
2018-08-01
影响因子：
3.5
通讯作者：
Crofoot, Margaret C.
中科院分区：
文献类型：
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作者：
Barrett, Brendan J.;Monteza-Moreno, Claudio M.;Crofoot, Margaret C.
对工具使用的习惯性依赖是野生粗壮卷尾猴（Sapajus属）和纤细卷尾猴（Cebus属）之间的显着行为差异。尽管经过充分研究并且拥有丰富的社交和采掘觅食传统，但宿猴很少使用工具，也从未观察到使用石器。相比之下，Sapajus习惯性使用工具的情况很普遍。我们回顾理论和讨论的因素，可能会解释这些差异的模式Cebus和Sapajus之间的工具使用。然后，我们报告的第一例习惯性的石头工具使用的纤细卷尾猴：一个人口的白脸卷尾猴（Cebus capucinus模仿者）Coiba国家公园，巴拿马习惯性地依靠锤石和砧工具的使用，以获得结构保护的食物项目在沿海地区，包括Terminalia catappa种子，寄居蟹，海洋蜗牛，陆生蟹和其他项目。这种行为至少从2004年起就一直持续在科伊巴国家公园的一个岛上。从1年的相机捕获，我们发现，石器工具的使用是强烈的男性偏见。在记录工具使用的205个相机陷阱日中，从未观察到成年女性使用石器工具，尽管她们经常在现场记录并从事乞讨行为。石制工具的使用发生在这一人群全年;超过一半的所有可识别的个人被观察到参与。在最活跃的工具使用网站，83.2%的日子里，卷尾猴被视为与工具使用相对应。卷尾猴居住的科伊巴群岛是高度陆地，减少捕食压力和潜在的经验相比，大陆人口的资源限制-三个条件被认为是重要的石器工具的使用的演变。白面卷尾猴工具使用科伊巴国家公园，从而提供了独特的机会，探索生态驱动因素和进化的基础上的石器工具的使用比较内和物种之间的背景。
Habitual reliance on tool use is a marked behavioural difference between wild robust (genus Sapajus) and gracile (genus Cebus) capuchin monkeys. Despite being well studied and having a rich repertoire of social and extractive foraging traditions, Cebus sp. rarely use tools and have never been observed using stone tools. By contrast, habitual tool use by Sapajus is widespread. We review theory and discuss factors which might explain these differences in patterns of tool use between Cebus and Sapajus. We then report the first case of habitual stone tool use in a gracile capuchin: a population of white-faced capuchins (Cebus capucinus imitator) in Coiba National Park, Panama who habitually rely on hammerstone and anvil tool use to access structurally protected food items in coastal areas including Terminalia catappa seeds, hermit crabs, marine snails, terrestrial crabs and other items. This behaviour has persisted on one island in Coiba National Park since at least 2004. From 1 year of camera trapping, we found that stone tool use is strongly male-biased. Of the 205 camera trap days where tool use was recorded, adult females were never observed to use stone tools, although they were frequently recorded at the sites and engaged in scrounging behaviour. Stone tool use occurs year-round in this population; over half of all identifiable individuals were observed participating. At the most active tool use site, 83.2% of days where capuchins were sighted corresponded with tool use. Capuchins inhabiting the Coiba archipelago are highly terrestrial, under decreased predation pressure and potentially experience resource limitation compared to mainland populations-three conditions considered important for the evolution of stone tool use. White-faced capuchin tool use in Coiba National Park thus offers unique opportunities to explore the ecological drivers and evolutionary underpinnings of stone tool use in a comparative within- and between-species context.