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Urine washing in urban robust capuchin monkeys (Sapajus sp.): The relation with visitors

Reyes, Patricio D. ; Baldovino, María Celia ; Aguiar, Lucas M.

American journal of primatology, 2022-07, Vol.84 (7), p.e23381-n/a [Periódico revisado por pares]

New York: Wiley Subscription Services, Inc

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  • Título:
    Urine washing in urban robust capuchin monkeys (Sapajus sp.): The relation with visitors
  • Autor: Reyes, Patricio D. ; Baldovino, María Celia ; Aguiar, Lucas M.
  • Assuntos: Adaptive behaviour ; Air temperature ; Animal behavior ; Behavior ; behavioral flexibility ; Captivity ; Flexibility ; food provisioning ; green urban areas ; Humans ; human‐monkey interactions ; Humidity ; Introduced species ; Monkeys ; Primates ; Relative humidity ; Robustness ; Sapajus ; Sex ; Sexual behavior ; Trees ; Urban environments ; urban wildlife ; Urine ; Visitors ; Washing
  • É parte de: American journal of primatology, 2022-07, Vol.84 (7), p.e23381-n/a
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: In primates, urine washing (UW) is a behavior in which individuals intentionally deposit urine on their bodies. Social and nonsocial hypotheses have been proposed to explain the adaptive function of this behavior. For capuchins, different functions have been assigned for UW, suggesting it as a flexible behavior, but studies have been mainly in captivity. However, no investigations have been performed in urban environments, where these animals can modify their behavior. Our goal was to study UW in a semi‐provisioned group of an introduced unknown robust capuchin species (Sapajus sp.) living in a tiny urban fragment in Foz do Iguaçu, Brazil, where they have contact with humans. We assessed the influence of social (sexual, agonistic, and anointing behaviors) and environmental (temperature, relative air humidity, height of the monkeys in the trees, number of people present in the fragment, and human‐monkey interactions) variables, the influence of behavior before and after UW, and the influence of sex‐age classes, on the frequency of UW. We observed 75 records of UW in 300 h of observations, where urine was mostly deposited on hands and passed on to feet (95%). There were no significant differences in the frequency of the behavior between sex‐age classes nor in the behaviors before and after UW. Around 50% of UW took place in the late morning and we found no correlation between UW and temperature, relative air humidity, nor the heights of the monkeys in the trees. However, we found a significant association between UW and the daily number of people in the fragment, but not between UW and human‐monkey interactions, anointing, agonisms, and sexual behavior. Our study increases the scope of UW flexibility by identifying the presence of visitors affecting the occurrence of this behavior. We discussed different possibilities through which people could influence the capuchins to display UW. Number of people in the fragment was positively correlated with urine washing behavior. RESEARCH HIGHLIGHT Urine washing (UW) observed in urban robust capuchins is positively associated with the number of people observed inside the forest, increasing the scope of the flexibility of UW by including people as influencers of the display of this behavior in capuchins.
  • Editor: New York: Wiley Subscription Services, Inc
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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