Does Mom Need More Protein? Preliminary Observations on Differences in Diet Composition in a Pair of Red Titi Monkeys (Callicebus cupreus)

Herrera, Emérita R. Tirado; Heymann, Eckhard W.

doi:10.1159/000078304

Cited by 33 publications

(17 citation statements)

References 9 publications

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“…A study on the diet conducted at the Estación Biológica Quebrada Blanco, Loreto, Peru, states that, of the two infants born over the study period (one group), “infants were exclusively carried by the male,” but no actual data are presented (Tirado Herrera & Heymann, ). In an intensive, ongoing study on six groups of titis (nine infants), with individually recognized adults, the male was the main carrier (>90% of time) (Dolotkovskaya & Heymann, pers.…”

Section: Resultsmentioning

confidence: 99%

The evolution of pair‐living, sexual monogamy, and cooperative infant care: Insights from research on wild owl monkeys, titis, sakis, and tamarins

Fernández-Duque

Huck

Belle

et al. 2020

American J Phys Anthropol

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“Monogamy” and pair bonding have long been of interest to anthropologists and primatologists. Their study contributes to our knowledge of human evolutionary biology and social evolution without the cultural trappings associated with studying human societies directly. Here, we first provide an overview of theoretical considerations, followed by an evaluation of recent comparative studies of the evolution of “social monogamy”; we are left with serious doubts about the conclusions of these studies that stem from the often poor quality of the data used and an overreliance on secondary sources without vetting the data therein. We then describe our field research program on four “monogamous” platyrrhines (owl monkeys, titis, sakis, and tamarins), evaluate how well our data support various hypotheses proposed to explain “monogamy,” and compare our data to those reported on the same genera in comparative studies. Overall, we found a distressing lack of agreement between the data used in comparative studies and data from the literature for the taxa that we work with. In the final section, we propose areas of research that deserve more attention. We stress the need for more high‐quality natural history data, and we urge researchers to be cautious about the uncritical use of variables of uncertain internal validity. Overall, it is imperative that biological anthropologists establish and follow clear criteria for comparing and combining results from published studies and that researchers, reviewers, and editors alike comply with these standards to improve the transparency, reproducibility, and interpretability of causal inferences made in comparative studies.

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Section: Resultsmentioning

confidence: 99%

The evolution of pair‐living, sexual monogamy, and cooperative infant care: Insights from research on wild owl monkeys, titis, sakis, and tamarins

Fernández-Duque

Huck

Belle

et al. 2020

American J Phys Anthropol

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“…However, most researchers agree that more frequent consumption of animal prey, and particularly meat, is likely to have been a key dietary shift for the genus Homo (Bunn, 2009). For omnivorous primates, including humans, the nutrients acquired from consuming animals may be of particular importance to females and young offspring (Allen 2000, 2005; Murphy and Allen 2003; Herrera and Heymann 2004). Understanding the relationships between sociality, faunivory and reproduction in living nonhuman primates is therefore critical for clarifying how humans are (or are not) different from other hominoids and mammals more generally.…”

Section: Introductionmentioning

confidence: 99%

“…In at least some omnivorous primates, dietary shifts in these reproductive periods include changes in faunivory (meaning the consumption of animals, vertebrate or otherwise). For example, lactating titi monkeys ( Callicebus cupreus ) increase the proportion of fauna in their diet (Herrera and Heymann, 2004), although white-faced capuchins ( Cebus capucinus ) do not (McCabe and Fedigan, 2007). …”

Section: Introductionmentioning

confidence: 99%

Reproductive state and rank influence patterns of meat consumption in wild female chimpanzees (Pan troglodytes schweinfurthii)

O’Malley

Stanton

Gilby

et al. 2016

Journal of Human Evolution

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An increase in faunivory is a consistent component of human evolutionary models. Animal matter is energy- and nutrient-dense and can provide macronutrients, minerals, and vitamins that are limited or absent in plant foods. For female humans and other omnivorous primates, faunivory may be of particular importance during the costly periods of pregnancy and early lactation. Yet, because animal prey is often monopolizable, access to fauna among group-living primates may be mediated by social factors such as rank. Wild chimpanzees (Pan troglodytes) across Africa habitually consume insects and/or vertebrates. However, no published studies have examined patterns of female chimpanzee faunivory during pregnancy and early lactation relative to non-reproductive periods, or by females of different rank. In this study, we assessed the influence of reproductive state and dominance rank on the consumption of fauna (meat and insects) by female chimpanzees of Gombe National Park, Tanzania. Using observational data collected over 38 years, we tested (a) whether faunivory varied by reproductive state, and (b) if high-ranking females spent more time consuming fauna than lower-ranking females. In single-factor models, pregnant females consumed more meat than lactating and baseline (meaning not pregnant and not in early lactation) females, and high-ranking females consumed more meat than lower-ranking females. A two-factor analysis of a subset of well-sampled females identified an interaction between rank and reproductive state: lower-ranking females consumed more meat during pregnancy than lower-ranking lactating and baseline females did. High-ranking females did not significantly differ in meat consumption between reproductive states. We found no relationships between rank or reproductive state with insectivory. We conclude that, unlike insectivory, meat consumption by female chimpanzees is mediated by both reproductive state and social rank. We outline several possible mechanisms for these patterns, relate our findings to meat-eating patterns in women from well-studied hunter-gatherer societies, and discuss potential avenues for future research.

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“…Wright [1984] observed that lactating females of C. brunneus in Peru spent more time foraging for insects with greater success than any other members. Tirado Herrera and Heymann [] observed that the female of a pair of C. cupreus in Peru consumed almost twice as many insects during lactation, and the female consumed more insects than the male during gestation. In addition, a possible sex difference was seen in the type of prey foraging performed.…”

Section: Discussionmentioning

confidence: 99%

Insect Prey Foraging Strategies inCallicebus oenanthein NorthernPeru

DeLuycker

2012

American J Primatol

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Titi monkeys (genus Callicebus) are small-bodied platyrrhines that supplement their predominantly frugivorous diet with variable amounts of leaves, seeds, and/or arthropod prey. Notable interspecific variation in the amount of insect prey in the diet has been observed in Callicebus, ranging from 0% to 20%. In this study, I investigate the degree and type of prey foraging in a little-known species, Callicebus oenanthe inhabiting a fragmented, secondary forest on the foothills of the Andes in northern Peru. I present data on prey type, prey search and capture techniques, substrate/vegetation use, foraging height, prey capture efficiency, and seasonal variation of insect prey foraging in one group of C. oenanthe observed from January to August 2005. Insect prey accounted for 22% of the diet, the highest amount reported for any Callicebus species to date, and insects from at least six different orders were included. C. oenanthe was mainly an investigative forager of hidden prey, manipulating easy-to-open substrates such as rolled up leaves, and hunted ant swarms and larger insects opportunistically. Insect foraging was predominant during the dry season (26%) and decreased during the wet season (13%). The study group foraged mostly in the understory (2-6 m) within vine-laden shrubs and trees, which may conform to an anti-predator strategy of crypticity. Overall the group had an 83% insect capture success rate. These data suggest that insect prey is an important part of the diet of C. oenanthe and may be especially notable during periods of resource scarcity. This study adds to the knowledge concerning insect prey foraging in Callicebus, which can have an important role in defining ecological strategies in the selection of secondary protein food resources within a given ecosystem.

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Does Mom Need More Protein? Preliminary Observations on Differences in Diet Composition in a Pair of Red Titi Monkeys (Callicebus cupreus)

Cited by 33 publications

References 9 publications

The evolution of pair‐living, sexual monogamy, and cooperative infant care: Insights from research on wild owl monkeys, titis, sakis, and tamarins

The evolution of pair‐living, sexual monogamy, and cooperative infant care: Insights from research on wild owl monkeys, titis, sakis, and tamarins

Reproductive state and rank influence patterns of meat consumption in wild female chimpanzees (Pan troglodytes schweinfurthii)

Insect Prey Foraging Strategies inCallicebus oenanthein NorthernPeru

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