The effects of predictable and unpredictable feeding schedules on the behavior and physiology of captive brown capuchins (Cebus apella)

Ulyan, Marjorie J.; Burrows, Anne E.; Buzzell, Courtney A.; Raghanti, Mary Ann; Marcinkiewicz, Jennifer L.; Phillips, Kimberley A.

doi:10.1016/j.applanim.2006.01.010

Cited by 41 publications

(43 citation statements)

References 5 publications

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“…The current results diff er from previous studies on food anticipatory activity in fi sh (Sánchez et al, 2009), minks (Hansen and Jeppesen, 2006), primates (Waitt and Buchanan-Smith, 2001;Ulyan et al, 2006), captive canids (Gilbert-Norton et al, 2009), and captive felines (Carlstead, 1998), where animals increased their activity level prior to feeding sessions and then decreased it as soon as they were fed, when the routine was performed on time. Conversely, a delay in the feeding produced an increased behavioral and vocal activity prior to the session, and the high rate was maintained or even intensifi ed throughout food delivery (Waitt and Buchanan-Smith, 2001).…”

Section: Discussioncontrasting

confidence: 56%

“…Conversely, other studies have found that making feeding sessions predictable is an eff ective way to decrease the stress associated with both waiting for and experiencing these events (Krishnamurthy, 1994;Ulyan et al, 2006;Gottlieb et al, 2013). These fi ndings are contrary to the common idea that animals fed on a predictable schedule undergo a high level of anticipation and stress (Bassett and Buchanan-Smith, 2007).…”

Section: Introductioncontrasting

confidence: 55%

“…Amongst the variety of behavioral changes that are considered indicative of FAA (Howell et al, 1993;Carlstead, 1998;Jensen et al, 2013), the variation of vocalizations is also a factor infl uenced by the schedule of feeding sessions (Krishnamurthy, 1994;Waitt and Buchanan-Smith, 2001;Ulyan et al, 2006;Gilbert-Norton et al, 2009; Polizzi di Sorrentino et al, 2010;Gottlieb et al, 2013). The false killer whales' group at Qingdao Polar Ocean World showed changes in acoustic activity approximately 30 minutes before the feeding sessions.…”

Section: Discussionmentioning

confidence: 99%

“…Evidence of food anticipatory activity has been found in many species including rodents, bees, fi sh, birds, rabbits, carnivores, and primates (for review see Carlstead, 1986;Mistlberger, 1994;Azzaydi et al, 1998;Reebs and Lague, 2000;Vinke et al, 2004;Ulyan et al, 2006;Waitt and Buchanan-Smith, 2006;Bassett and Buchanan-Smith, 2007;Gilbert-Norton et al, 2009;Mistlberger, 2009Mistlberger, , 2011). Yet, there is only one study that reports the presence of FAA in dolphins before they participate in feeding or training sessions (Jensen et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…In fact, it has been found that sound rates, type of calls, and acoustic structure within a call may vary depending on the context of behaviors such as aggression, panic, and social separation (rodents: Goldstein et al, 1996;Albeck et al, 1997;primates: Bayart et al, 1990;Champoux and Suomi, 1994;Friedman et al, 1995;Laudenslager et al, 1995;Boinski et al, 1999;farm animals: von Borell and Ladewig, 1992;Désautés et al, 1997;Weary et al, 1997). Animals living in a controlled environment with predictable daily routines, experience anticipation which is a mental state that can infl uence their behaviors including vocalizations (Krishnamurthy, 1994;Knutson et al, 1998;Burgdorf et al, 2000;Waitt and Buchanan-Smith, 2001;Ulyan et al, 2006;Düpjan et al, 2008;Gilbert-Norton et al, 2009;Polizzi di Sorrentino et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Variation in the emission rate of sounds in a captive group of false killer whales Pseudorca crassidens during feedings: possible food anticipatory vocal activity?

Platto

Wang

2015

Chin. J. Ocean. Limnol.

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This study examines whether a group of captive false killer whales ( Pseudorca crassidens ) showed variations in the vocal rate around feeding times. The high level of motivation to express appetitive behaviors in captive animals may lead them to respond with changes of the behavioral activities during the time prior to food deliveries which are referred to as food anticipatory activity. False killer whales at Qingdao Polar Ocean World (Qingdao, China) showed signifi cant variations of the rates of both the total sounds and sound classes (whistles, clicks, and burst pulses) around feedings. Precisely, from the Transition interval that recorded the lowest vocalization rate (3.40 s/m/d), the whales increased their acoustic emissions upon trainers' arrival (13.08 s/m/d). The high rate was maintained or intensifi ed throughout the food delivery (25.12 s/m/d), and then reduced immediately after the animals were fed (9.91 s/m/d). These changes in the false killer whales sound production rates around feeding times supports the hypothesis of the presence of a food anticipatory vocal activity. Although sound rates may not give detailed information regarding referential aspects of the animal communication it might still shed light about the arousal levels of the individuals during diff erent social or environmental conditions. Further experiments should be performed to assess if variations of the time of feeding routines may aff ect the vocal activity of cetaceans in captivity as well as their welfare.

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Section: Discussioncontrasting

confidence: 56%

Section: Introductioncontrasting

confidence: 55%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Variation in the emission rate of sounds in a captive group of false killer whales Pseudorca crassidens during feedings: possible food anticipatory vocal activity?

Platto

Wang

2015

Chin. J. Ocean. Limnol.

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Human biology and the study of precarity: How the intersection of uncertainty and inequality is taking us to new extremes

Hoke,

Long

2023

American J Hum Biol

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Inequality represents an extreme environment to which humans must respond. One phenomenon that contributes to this growing extreme is precarity or the intersection of uncertainty and some form of inequality. While precarity has an important intellectual history in the fields of sociology and sociocultural anthropology, it has not been well studied in the field of human biology. Rather human biologists have engaged with the study of closely related concepts such as uncertainty and resource insecurity. In this article, we propose that human biology take on the study of precarity as a novel way of investigating inequality. We first provide a brief intellectual history of precarity which is followed by a review of research on uncertainty and resource security in human biology which, while not exhaustive, illustrates some key gaps that precarity may aid us in addressing. We then review some of the pathways through which precarity comes to affect human biology and health and some of the evidence for why the unpredictable nature of precarity may make it a unique physiological stress. A case study based on research in Nuñoa, Peru provides an important example of how precarity can elucidate the influences of health in an extreme setting, albeit with insights that apply more broadly. We conclude that precarity holds important potential for the study of human biology, including helping us more effectively operationalize and study uncertainty, encouraging us to explore the predictability of resources and stressors, and reminding us to think about the intersectional nature of stressors.

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Stress behaviors in captive robust capuchins: Effects of humidity, visitors, management and sex

Cardozo

Castro

Aguiar

2021

American J Primatol

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Wild robust capuchins (Sapajus spp.) are omnivorous neotropical primates that live in relatively large groups in extensive home and daily ranges with activity budgets dominated by traveling, foraging, and object manipulation, meaning that enclosed spaces can result in significant deprivation. Space restriction, manipulation by caretakers, and the chronic presence of visitors, can disrupt the animals' welfare, altering their normal activities and inducing stress behaviors. We aimed to study the behavioral repertoire, activity budget, and frequency of stress behaviors (stereotypes and self-directed behaviors) between two captive groups of robust capuchins in a public zoo in Foz do Iguaçu, Brazil, to understand how much their behavioral homeostasis has been affected. More specifically, we assessed the effect of environmental variables (temperature, relative air humidity, number of visitors, and food management) and sex on the frequency of stress behaviors. Capuchins showed a high frequency of stress behaviors, which represented around 10% of their activity budget (though the frequencies were unevenly distributed among the individuals), and traveling was positively correlated with stereotypes. We found that high relative air humidity appears to induce more stereotypes, high numbers of visitors appear to increase self-directed and vigilance behaviors and reduce stereotypes, food management can increase both kinds of stress behaviors, and females demonstrated more frequent stress behaviors than males, but individual variation may play a role. Capuchins in the group with a greater space restriction showed more stereotypes, while those in the group with more individuals showed more selfdirected behaviors. Our study shows that the stress behaviors performed by the capuchins are complex and it is difficult to determine a single cause, because many traits could be involved. Despite that, this study enlightens us to direct some approaches to help these animals to meet their ecological and social needs, mitigating their stress.

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The effects of predictable and unpredictable feeding schedules on the behavior and physiology of captive brown capuchins (Cebus apella)

Cited by 41 publications

References 5 publications

Variation in the emission rate of sounds in a captive group of false killer whales Pseudorca crassidens during feedings: possible food anticipatory vocal activity?

Variation in the emission rate of sounds in a captive group of false killer whales Pseudorca crassidens during feedings: possible food anticipatory vocal activity?

Human biology and the study of precarity: How the intersection of uncertainty and inequality is taking us to new extremes

Stress behaviors in captive robust capuchins: Effects of humidity, visitors, management and sex

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