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Yamashita N, Flowers N, Fogaça MD. The effects of feeding frequency on jaw loading in two lemur species. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2024; 184:e24916. [PMID: 38441408 DOI: 10.1002/ajpa.24916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 02/03/2024] [Accepted: 02/09/2024] [Indexed: 04/12/2024]
Abstract
OBJECTIVES Studies on oral processing are often snapshots of behaviors that examine feeding through individual bouts. In this study, we expand on our previous work comparing bite/chew variables per feeding bout to summed daily biting, chewing, and food intake to interpret loading that could have potential morphological effects. MATERIALS AND METHODS We observed sympatric Lemur catta and Propithecus verreauxi over two field seasons in the dry forest of Bezà Mahafaly Special Reserve in southwestern Madagascar. Bite and chew rates determined from videos filmed during observations were multiplied with time spent feeding on specific foods during focal follows to calculate daily values for each feeding bout. Food mechanical properties (FMPs) were tested on dietary items with a portable tester. We contrasted daily bite/chew numbers and intake with FMPs, species, season, and food shape. RESULTS Daily bite and chew numbers increased with maximum, but not average, food toughness. Daily intake decreased with average and maximum toughness. Season had a strong effect on daily bites and chews, but not on intake. Food shape influenced intake and total bite and chew numbers. The lemur species did not differ in our models. DISCUSSION Maximum food toughness impacted feeding behaviors and intake, which is consistent with higher loads having a greater effect on morphology. In contrast to feeding per bout, cumulative biting and chewing did not differ between species; taking feeding frequency into consideration affects interpretation of jaw loading. Finally, biting, as much as chewing, may generate strains that impact morphology.
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Affiliation(s)
- Nayuta Yamashita
- Institute of Population Genetics, University of Veterinary Medicine, Vienna, Austria
- Austrian Academy of Sciences, Vienna, Austria
| | - Nina Flowers
- Institute of Population Genetics, University of Veterinary Medicine, Vienna, Austria
| | - Mariana Dutra Fogaça
- Institute of Population Genetics, University of Veterinary Medicine, Vienna, Austria
- Neotropical Primates Research Group-NeoPRego, São Paulo, Brazil
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2
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Ekanayake‐Weber M, Mathew N, Cunha D, Payen N, Grimm V, Koenig A. It's about time: Feeding competition costs of sociality are affected more by temporal characteristics than spatial distribution. Ecol Evol 2024; 14:e11209. [PMID: 38628923 PMCID: PMC11019304 DOI: 10.1002/ece3.11209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/14/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
For most herbivorous animals, group-living appears to incur a high cost by intensifying feeding competition. These costs raise the question of how gregariousness (i.e., the tendency to aggregate) could have evolved to such an extent in taxa such as anthropoid primates and ungulates. When attempting to test the potential benefits and costs, previous foraging models demonstrated that group-living might be beneficial by lowering variance in intake, but that it reduces overall foraging success. However, these models did not fully account for the fact that gregariousness has multiple experiences and can vary in relation to ecological variables and foraging competition. Here, we present an agent-based model for testing how ecological variables impact the costs and benefits of gregariousness. In our simulations, primate-like agents forage on a variable resource landscape while maintaining spatial cohesion with conspecifics to varying degrees. The agents' energy intake rate, daily distance traveled, and variance in energy intake were recorded. Using Morris Elementary Effects sensitivity analysis, we tested the sensitivity of 10 model parameters, of which 2 controlled gregarious behavior and 8 controlled food resources, including multiple aspects of temporal and spatial heterogeneity. We found that, while gregariousness generally increased feeding competition, the costs of gregariousness were much lower when resources were less variable over time (i.e., when calorie extraction was slow and resource renewal was frequent). We also found that maintaining proximity to other agents resulted in lower variance in energy intake when resources were more variable over time. Thus, it appears that the costs and benefits of gregariousness are strongly influenced by the temporal characteristics of food resources, giving insight into the pressures that shaped the evolution of sociality and group living, including in our own lineage.
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Affiliation(s)
- Marcy Ekanayake‐Weber
- Department of AnthropologyStony Brook UniversityStony BrookNew YorkUSA
- Interdepartmental Doctoral Program in Anthropological SciencesStony Brook UniversityStony BrookNew YorkUSA
| | - Namita Mathew
- Department of Computer ScienceStony Brook UniversityStony BrookNew YorkUSA
| | - Deanna Cunha
- Department of AnthropologyStony Brook UniversityStony BrookNew YorkUSA
| | - Nathanael Payen
- Department of Computer ScienceStony Brook UniversityStony BrookNew YorkUSA
| | - Volker Grimm
- Department of Ecological ModelingHelmholtz Centre for Environmental Research – UFZLeipzigGermany
| | - Andreas Koenig
- Department of AnthropologyStony Brook UniversityStony BrookNew YorkUSA
- Interdepartmental Doctoral Program in Anthropological SciencesStony Brook UniversityStony BrookNew YorkUSA
- Graduate Program in Ecology and EvolutionStony Brook UniversityStony BrookNew YorkUSA
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3
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Schuppli C, Nellissen L, Carvajal L, Ashbury AM, Oliver-Caldwell N, Rahmaeti T, Laumer I, Haun D. Ecological, social, and intrinsic factors affecting wild orangutans' curiosity, assessed using a field experiment. Sci Rep 2023; 13:13184. [PMID: 37580333 PMCID: PMC10425418 DOI: 10.1038/s41598-023-39214-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 07/21/2023] [Indexed: 08/16/2023] Open
Abstract
The readiness to interact with and explore novel stimuli-i.e., curiosity-is the cornerstone of innovation. Great apes show broad and complex innovation repertoires. However, little is known about the factors that affect curiosity in wild apes. To shed light on wild apes' curiosity, we measured the reactions of wild Sumatran orangutans (Pongo abelii) to an experiment apparatus. Overall, individuals were reluctant to touch the apparatus. However, compared to adults, immatures showed higher tendencies to explore (measured through looking durations and the probability of touching the apparatus) and to approach (measured through approach latencies and approach distances) the apparatus but were more likely to show behavioral signs of agitation. The presence of conspecifics who approached the apparatus increased visual exploration and approach tendencies. Prevailing habitat food availability positively affected visual exploration but had a negative effect on approach tendencies. These findings indicate that intrinsic, social, and ecological factors affect reactions to novelty in wild orangutans and suggest that exploration, neophobia and neophilia are independently regulated. Because reactions to novelty can be an essential pathway to innovation, our results suggest that factors acting on different elements of curiosity must be considered to understand the evolution of innovative tendencies.
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Affiliation(s)
- Caroline Schuppli
- Development and Evolution of Cognition Research Group, Max Planck Institute of Animal Behavior, Bücklestrasse 5, 78467, Konstanz, Germany.
- Leipzig Research Center for Early Child Development, Leipzig University, Jahnallee 59, 04109, Leipzig, Germany.
- Department of Anthropology, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland.
| | - Lara Nellissen
- Department of Anthropology, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
- Department of Éco-Anthropologie et Ethnobiologie, Muséum National d'Histoire Naturelle, CP 135, Rue Cuvier, 75 231, Paris Cedex 5, France
- Institute of Biology, Department of Comparative Cognition, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchatel, Switzerland
| | - Luz Carvajal
- Department of Anthropology, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
- Department of Psychological and Brain Sciences, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD, 21218, USA
| | - Alison M Ashbury
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Bücklestrasse 5, 78467, Konstanz, Germany
- Department of Biology, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Natalie Oliver-Caldwell
- Department of Anthropology, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Tri Rahmaeti
- Development and Evolution of Cognition Research Group, Max Planck Institute of Animal Behavior, Bücklestrasse 5, 78467, Konstanz, Germany
- Department of Biology, Graduate School, Universitas Nasional, Jalan Sawo Manila, RT.14/RW.3, Jakarta, 12550, Indonesia
| | - Isabelle Laumer
- Development and Evolution of Cognition Research Group, Max Planck Institute of Animal Behavior, Bücklestrasse 5, 78467, Konstanz, Germany
| | - Daniel Haun
- Department of Comparative Cultural Psychology, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103, Leipzig, Germany
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4
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Oelze VM, O'Neal I, Wittig RM, Kupczik K, Schulz-Kornas E, Hohmann G. A skew in poo: Biases in primate fecal isotope analysis and recommendations for standardized sample preparation. Am J Primatol 2023; 85:e23436. [PMID: 36239010 DOI: 10.1002/ajp.23436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/29/2022] [Accepted: 09/05/2022] [Indexed: 01/05/2023]
Abstract
Feces are a treasure trove in the study of animal behavior and ecology. Stable carbon and nitrogen isotope analysis allows to assess the dietary niches of elusive primate species and primate breastfeeding behavior. However, some fecal isotope data may unwillingly be biased toward the isotope ratios of undigested plant matter, requiring more consistent sample preparation protocols. We assess the impact of this potential data skew in 114 fecal samples of wild bonobos (Pan paniscus) by measuring the isotope differences (Δ13 C, Δ15 N) between bulk fecal samples containing larger particles (>1 mm) and filtered samples containing only small particles (<1 mm). We assess the influence of fecal carbon and nitrogen content (ΔC:N) and sample donor age (subadult, adult) on the resulting Δ13 C, Δ15 N values (n = 228). Additionally, we measure the isotope ratios in three systematically sieved fecal samples of chimpanzees (Pan troglodytes verus), with particle sizes ranging from 20 μm to 8 mm (n = 30). We found differences in fecal carbon and nitrogen content, with the smaller fecal fraction containing more nitrogen on average. While the Δ13 C values were small and not affected by age or ΔC:N, the Δ15 N values were significantly influenced by fecal ΔC:N, possibly resulting from the differing proportions of undigested plant macroparticles. Significant relationships between carbon stable isotope ratios (δ13 C) values and %C in large fecal fractions of both age groups corroborated this assessment. Δ15 N values were significantly larger in adults than subadults, which should be of concern in isotope studies comparing adult females with infants to assess breastfeeding. We found a random variation of up to 3.0‰ in δ13 C and 2.0‰ in nitrogen stable isotope ratios within the chimpanzee fecal samples separated by particle sizes. We show that particle size influences isotope ratios and propose a simple, cost-effective filtration method for primate feces to exclude larger undigested food particles from the analysis, which can easily be adopted by labs worldwide.
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Affiliation(s)
- Vicky M Oelze
- Anthropology Department, University of California, Santa Cruz, Santa Cruz, California, USA
| | - Isabella O'Neal
- Anthropology Department, University of California, Santa Cruz, Santa Cruz, California, USA
| | - Roman M Wittig
- Department of Human Behavior, Max Planck Institute for Evolutionary Anthropology, Ecology and Culture, Leipzig, Germany.,Institute for Cognitive Sciences, CNRS UMR5229 University Claude Bernard Lyon 1, Bron, France
| | - Kornelius Kupczik
- Department of Anthropology, Faculty of Social Sciences, University of Chile, Ñuñoa, Santiago de Chile, Chile.,Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Ellen Schulz-Kornas
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| | - Gottfried Hohmann
- Department of Human Behavior, Max Planck Institute for Evolutionary Anthropology, Ecology and Culture, Leipzig, Germany.,Max-Planck-Institute of Animal Behavior, Konstanz, Germany
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5
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After the smoke has cleared: Extended low fruit productivity following forest fires decreased gregariousness and social tolerance among wild female Bornean orangutans (Pongo pygmaeus wurmbii). INT J PRIMATOL 2021. [DOI: 10.1007/s10764-021-00263-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
AbstractAs climate change continues to fundamentally alter resource landscapes, the ability to flexibly respond to spatio-temporal changes in the distribution of preferred food sources is increasingly important for the overall health and fitness of animals living in seasonal, variable, and/or changing environments. Here, we investigate the effects of an uncharacteristically long period of fruit scarcity, following widespread thick haze caused by peat and forest fires in 2015, on the behaviour and sociality of female Bornean orangutans (Pongo pygmaeus wurmbii). We collected data from 2010 to 2018 at Tuanan, Central Kalimantan, Indonesia, and compared the activity, diet, and association patterns of adult females during low-fruit periods before the fires, i.e., regular, seasonal periods of low fruit availability (“pre-fire”), and after the fires, i.e., during the extended period of low fruit availability (“post-fire”). First, we found that, post-fire, female orangutans adopted a more extreme energy-saving activity pattern and diet — resting more, travelling less, and diet-switching to less-preferred foods — compared to pre-fire. Second, we found that the probabilities of association between females and their weaned immature offspring, and between related and unrelated adult females were lower, and the probability of agonism between unrelated females was higher, post-fire than pre-fire. This change in energetic strategy, and the general reduction in gregariousness and social tolerance, demonstrates how forest fires can have lasting consequences for orangutans. Fission–fusion species such as orangutans can mitigate the effects of changes in resource landscapes by altering their (sub)grouping patterns; however, this may have long-term indirect consequences on their fitness.
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6
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Reconstructing Neanderthal diet: The case for carbohydrates. J Hum Evol 2021; 162:103105. [PMID: 34923240 DOI: 10.1016/j.jhevol.2021.103105] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 12/22/2022]
Abstract
Evidence for plants rarely survives on Paleolithic sites, while animal bones and biomolecular analyses suggest animal produce was important to hominin populations, leading to the perspective that Neanderthals had a very-high-protein diet. But although individual and short-term survival is possible on a relatively low-carbohydrate diet, populations are unlikely to have thrived and reproduced without plants and the carbohydrates they provide. Today, nutritional guidelines recommend that around half the diet should be carbohydrate, while low intake is considered to compromise physical performance and successful reproduction. This is likely to have been the same for Paleolithic populations, highlighting an anomaly in that the basic physiological recommendations do not match the extensive archaeological evidence. Neanderthals had large, energy-expensive brains and led physically active lifestyles, suggesting that for optimal health they would have required high amounts of carbohydrates. To address this anomaly, we begin by outlining the essential role of carbohydrates in the human reproduction cycle and the brain and the effects on physical performance. We then evaluate the evidence for resource availability and the archaeological evidence for Neanderthal diet and investigate three ways that the anomaly between the archaeological evidence and the hypothetical dietary requirements might be explained. First, Neanderthals may have had an as yet unidentified genetic adaptation to an alternative physiological method to spare blood glucose and glycogen reserves for essential purposes. Second, they may have existed on a less-than-optimum diet and survived rather than thrived. Third, the methods used in dietary reconstruction could mask a complex combination of dietary plant and animal proportions. We end by proposing that analyses of Paleolithic diet and subsistence strategies need to be grounded in the minimum recommendations throughout the life course and that this provides a context for interpretation of the archaeological evidence from the behavioral and environmental perspectives.
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7
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Tsutaya T, Ogawa NO, Nomura T, Shimizu M, Ohkouchi N, Kuze N. Carbon and nitrogen stable isotopic offsets between diet and hair/feces in captive orangutans. Primates 2021; 62:945-954. [PMID: 34415484 DOI: 10.1007/s10329-021-00940-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/02/2021] [Indexed: 10/20/2022]
Abstract
Estimating stable isotopic offset values is crucial for dietary reconstructions. Although research into stable isotope ecology of wild nonhuman primates is increasing overall, only a minority of studies involve laboratory experiments. This study is the first to report the carbon and nitrogen stable isotopic offset values in hair and feces of orangutans. During an experiment lasting 1 week, the weight of each consumed food item was recorded for each of six captive Bornean orangutan (Pongo pygmaeus) individuals. The food, hair, and fecal samples were collected for a few days, and their stable carbon and nitrogen isotope ratios were measured using an elemental analyzer/isotope ratio mass spectrometer. Subsamples of feces were treated with ethanol during the preservation process. Monte Carlo analyses showed that the 95% confidence intervals (CIs) of the carbon and nitrogen offset values between hair and diet were +0.9‰ to +3.9‰ and +2.3‰ to +4.5‰, respectively. The 95% CIs of the carbon and nitrogen offset values between feces and diet were -3.7‰ to -0.9‰ and +0.3‰ to +2.7‰, respectively. The effect of ethanol treatment on the stable isotope ratios of feces was unclear and inconclusive. The computed offset values of hair in captive orangutans are similar to those reported in other nonhuman primates, although those of feces showed greater interspecies variations. The offset values estimated in this study contribute to isotopic studies into the feeding ecology of free-ranging orangutans who are critically endangered in most wild settings.
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Affiliation(s)
- Takumi Tsutaya
- Department of Evolutionary Studies of Biosystems, the Graduate University for Advanced Studies, Shonan Village, Hayama, Kanagawa, 240-0193, Japan. .,Japan Agency for Marine-Earth Science and Technology, Biogeochemistry Research Center, Research Institute for Marine Resources Utilization, Natsushima 2-15, Yokosuka, Kanagawa, 237-0061, Japan.
| | - Nanako O Ogawa
- Japan Agency for Marine-Earth Science and Technology, Biogeochemistry Research Center, Research Institute for Marine Resources Utilization, Natsushima 2-15, Yokosuka, Kanagawa, 237-0061, Japan
| | - Toshiya Nomura
- Tama Zoological Park, Hodokubo 7-1-1, Hino, Tokyo, 191-0042, Japan
| | - Mika Shimizu
- Tama Zoological Park, Hodokubo 7-1-1, Hino, Tokyo, 191-0042, Japan.,Present address: Ikimonosha, Maya 714, Akaiwa, Okayama, 709-0825, Japan
| | - Naohiko Ohkouchi
- Japan Agency for Marine-Earth Science and Technology, Biogeochemistry Research Center, Research Institute for Marine Resources Utilization, Natsushima 2-15, Yokosuka, Kanagawa, 237-0061, Japan
| | - Noko Kuze
- Department of Anthropology, National Museum of Nature and Science, Amakubo 4-1-1, Tsukuba, Ibaraki, 305-0005, Japan
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8
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Kralick AE, McGrath K. More severe stress markers in the teeth of flanged versus unflanged orangutans (Pongo spp.). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2021; 176:625-637. [PMID: 34378194 DOI: 10.1002/ajpa.24387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 06/30/2021] [Accepted: 07/18/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVES We compared an early life stress indicator, linear enamel hypoplasia (LEH), in the canine teeth of two male orangutan (Pongo spp.) morphs. Flanged males have large bi-discoid cheek pads and a laryngeal throat pouch, and they exhibit either the same or higher levels of the stress hormone cortisol throughout development compared with unflanged males, which lack secondary sexual characteristics. Such "developmental arrest" is hypothesized to either reflect a response to experienced high stress (Hypothesis 1), or an adaptation to avoid elevated stress levels and/or having experienced lower stress levels (Hypothesis 2) during early life. As LEH defect depth has been shown to reflect the severity (i.e., intensity and/or duration) of early life stress events, we examined whether unflanged males have shallower LEH defects than flanged males. MATERIALS AND METHODS Flanging status was assessed by measuring the faces of preserved skins. Canine height (N = 37) was measured in the same individuals to assess commonality between morphs. LEH defect depths were analyzed using a standardized confocal profilometry method (N = 34). RESULTS Flanged males have significantly deeper LEH defects than unflanged adult males. Canine projected crown heights are similar across males regardless of morph. CONCLUSIONS Evidence from great apes shows that, when comparing canines with similar growth patterns, deeper defects reflect more severe stress events during development. Thus, our results suggest that "developmental arrest" of unflanged males is not a response to having experienced stress, but rather an adaptation to avoid the physiological impacts associated with chronic stress and/or experiencing lower stress levels.
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Affiliation(s)
- Alexandra E Kralick
- Department of Anthropology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kate McGrath
- CNRS, MC, PACEA, UMR 5199, Université de Bordeaux, Pessac, France.,Center for the Advanced Study of Human Paleobiology, Department of Anthropology, The George Washington University, Washington, District of Columbia, USA.,Department of Anthropology, The Ohio State University, Columbus, Ohio, USA
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9
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Wild Bornean orangutans experience muscle catabolism during episodes of fruit scarcity. Sci Rep 2021; 11:10185. [PMID: 33986319 PMCID: PMC8119411 DOI: 10.1038/s41598-021-89186-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/21/2021] [Indexed: 02/03/2023] Open
Abstract
Pronounced temporal and spatial variation in the availability of food resources can produce energetic deficits in organisms. Fruit-dependent Bornean orangutans face extreme variation in fruit availability and experience negative energy and protein balance during episodes of fruit scarcity. We evaluate the possibility that orangutans of different sexes and ages catabolize muscle tissue when the availability of fruit is low. We assess variation in muscle mass by examining the relationship between urinary creatinine and specific gravity and use the residuals as a non-invasive measure of estimated lean body mass (ELBM). Despite orangutans having a suite of adaptations to buffer them from fruit scarcity and associated caloric deficits, ELBM was lower during low fruit periods in all age-sex classes. As predicted, adult male orangutans had higher ELBM than adult females and immatures. Contrary to expectation, flanged and unflanged males did not differ significantly in ELBM. These findings highlight the precarity of orangutan health in the face of rapid environmental change and add to a growing body of evidence that orangutans are characterized by unique metabolic traits shaped by their unpredictable forest environment.
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10
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Cold Discomfort: A Model to Explain Repetitive Linear Enamel Hypoplasia Among Pan troglodytes and Pan paniscus. INT J PRIMATOL 2021. [DOI: 10.1007/s10764-021-00206-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Janmaat KRL. What animals do not do or fail to find: A novel observational approach for studying cognition in the wild. Evol Anthropol 2019; 28:303-320. [PMID: 31418959 PMCID: PMC6916178 DOI: 10.1002/evan.21794] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 06/17/2019] [Accepted: 07/12/2019] [Indexed: 12/29/2022]
Abstract
To understand how our brain evolved and what it is for, we are in urgent need of knowledge about the cognitive skills of a large variety of animal species and individuals, and their relationships to rapidly disappearing social and ecological conditions. But how do we obtain this knowledge? Studying cognition in the wild is a challenge. Field researchers (and their study subjects) face many factors that can easily interfere with their variables of interest. Although field studies of cognition present unique challenges, they are still invaluable for understanding the evolutionary drivers of cognition. In this review, I discuss the advantages and urgency of field-based studies on animal cognition and introduce a novel observational approach for field research that is guided by three questions: (a) what do animals fail to find?, (b) what do they not do?, and (c) what do they only do when certain conditions are met? My goal is to provide guidance to future field researchers examining primate cognition.
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Affiliation(s)
- Karline R. L. Janmaat
- Max Planck Institute for Evolutionary AnthropologyLeipzigGermany
- Institute for Biodiversity and Ecosystem DynamicsUniversity of AmsterdamAmsterdamThe Netherlands
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12
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Lodwick JL, Salmi R. Nutritional composition of the diet of the western gorilla (Gorilla gorilla): Interspecific variation in diet quality. Am J Primatol 2019; 81:e23044. [PMID: 31463957 DOI: 10.1002/ajp.23044] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 08/02/2019] [Accepted: 08/13/2019] [Indexed: 12/15/2022]
Abstract
To meet nutritional needs, primates adjust their diets in response to local habitat differences, though whether these dietary modifications translate to changes in dietary nutrient intake is unknown. A previous study of two populations of the mountain gorilla (MG: Gorilla beringei) found no evidence for intraspecific variation in the nutrient composition of their diets, despite ecological and dietary differences between sites. One potential explanation is that nutritional variability in primate diets requires greater ecological divergence than what was captured between MG sites, underpinning environmental differences in the nutrient quality of plant foods. To test whether Gorilla exhibits interspecific variation in dietary composition and nutrient intake, we studied the composition and macronutrients of the western gorilla (WG: Gorilla gorilla) staple diets and compared them with published data from the two MG populations. We recorded feeding time and food intake of four adult female WGs from one habituated group over a period of 11 months (December 2004-October 2005) at the Mondika Research Center, Republic of Congo, allowing for assessment of seasonal patterns of nutrient intake. Staple diets of WGs and MGs diverged in their dietary and macronutrient composition. Compared to MGs, the staple diet of WGs (by intake) contained higher proportions of fruit (43%) and leaf (12%) and a lower proportion of herb (39%), resulting in a higher intake of total nonstructural carbohydrate and fiber and a lower intake of crude protein. Staple gorilla fruits and herbs differed in nutrient quality between sites. Gorillas exhibit nutritional flexibility that reflects ecological variation in the nutrient quality of plant foods. Since dietary quality typically affects rates of growth and reproduction in primates, our results suggest that interspecific differences in nutrient intake and food quality may shape differences in gorilla nutrient balancing and female life history strategies.
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Affiliation(s)
- Jessica L Lodwick
- Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook University, Stony Brook, New York.,Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, Connecticut
| | - Roberta Salmi
- Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook University, Stony Brook, New York.,Department of Anthropology, University of Georgia, Athens, Georgia
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13
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Elemental signatures of Australopithecus africanus teeth reveal seasonal dietary stress. Nature 2019; 572:112-115. [PMID: 31308534 DOI: 10.1038/s41586-019-1370-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 06/07/2019] [Indexed: 01/13/2023]
Abstract
Reconstructing the detailed dietary behaviour of extinct hominins is challenging1-particularly for a species such as Australopithecus africanus, which has a highly variable dental morphology that suggests a broad diet2,3. The dietary responses of extinct hominins to seasonal fluctuations in food availability are poorly understood, and nursing behaviours even less so; most of the direct information currently available has been obtained from high-resolution trace-element geochemical analysis of Homo sapiens (both modern and fossil), Homo neanderthalensis4 and living apes5. Here we apply high-resolution trace-element analysis to two A. africanus specimens from Sterkfontein Member 4 (South Africa), dated to 2.6-2.1 million years ago. Elemental signals indicate that A. africanus infants predominantly consumed breast milk for the first year after birth. A cyclical elemental pattern observed following the nursing sequence-comparable to the seasonal dietary signal that is seen in contemporary wild primates and other mammals-indicates irregular food availability. These results are supported by isotopic evidence for a geographical range that was dominated by nutritionally depauperate areas. Cyclical accumulation of lithium in A. africanus teeth also corroborates the idea that their range was characterized by fluctuating resources, and that they possessed physiological adaptations to this instability. This study provides insights into the dietary cycles and ecological behaviours of A. africanus in response to food availability, including the potential cyclical resurgence of milk intake during times of nutritional challenge (as observed in modern wild orangutans5). The geochemical findings for these teeth reinforce the unique place of A. africanus in the fossil record, and indicate dietary stress in specimens that date to shortly before the extinction of Australopithecus in South Africa about two million years ago.
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Irwin MT, Samonds KE, Raharison JL, Junge RE, Mahefarisoa KL, Rasambainarivo F, Godfrey LR, Glander KE. Morphometric signals of population decline in diademed sifakas occupying degraded rainforest habitat in Madagascar. Sci Rep 2019; 9:8776. [PMID: 31217457 PMCID: PMC6584568 DOI: 10.1038/s41598-019-45426-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 05/23/2019] [Indexed: 11/08/2022] Open
Abstract
Anthropogenic habitat change can have varied impacts on primates, including both negative and positive outcomes. Even when behavioural shifts are seen, they may reflect decreased health, or simply behavioural flexibility; understanding this distinction is important for conservation efforts. This study examines habitat-related variation in adult and immature morphometrics among diademed sifakas (Propithecus diadema). We collected morphometric data from sifakas at Tsinjoarivo, Madagascar (19 years, 188 captures, 113 individuals). Captures spanned 12 groups, five within continuous forest ("CONT"), and seven in degraded fragments ("FRAG") where sifakas have lower nutritional intakes. Few consistent differences were found between CONT and FRAG groups. However, using home range quality as a covariate rather than a CONT/FRAG dichotomy revealed a threshold: the two FRAG groups in the lowest-quality habitat showed low adult mass and condition (wasting), and low immature mass and length (stunting). Though less-disturbed fragments apparently provide viable habitat, we suggest the sifakas in the most challenging habitats cannot evolve fast enough to keep up with such rapid habitat change. We suggest other long-lived organisms will show similar morphometric "warning signs" (wasting in adults, stunting in immatures); selected morphometric variables can thus be useful at gauging vulnerability of populations in the face of anthropogenic change.
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Affiliation(s)
- Mitchell T Irwin
- Department of Anthropology, Northern Illinois University, DeKalb, IL, 60115, USA.
| | - Karen E Samonds
- Department of Biological Sciences, Northern Illinois University, DeKalb, IL, 60115, USA
| | | | | | | | | | - Laurie R Godfrey
- Department of Anthropology, University of Massachusetts Amherst, Amherst, MA, 01003, USA
| | - Kenneth E Glander
- Department of Evolutionary Anthropology, Duke University, Durham, NC, 27708, USA
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Schillaci MA, Lintlop J, Sumra M, Pizarro M, Jones-Engel L. Hair cortisol and stable carbon and nitrogen isotope ratios in barbary macaques (Macaca sylvanus) from Gibraltar. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33:831-838. [PMID: 30741464 PMCID: PMC8055468 DOI: 10.1002/rcm.8413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/31/2019] [Accepted: 02/04/2019] [Indexed: 06/09/2023]
Abstract
RATIONALE Prolonged exposure to the stress hormone cortisol can precipitate a catabolic state in animals resulting in a negative nitrogen balance and increased excreted nitrogen, possibly affecting stable nitrogen and carbon isotope ratios in animal tissues. Here we test the hypothesis that stress, as measured by hair cortisol, is a significant contributor to variation in δ15 N and δ13 C values in hair. The results of the present study have important implications for the use of stable carbon and nitrogen isotope ratios measured in animal and human tissues to make inferences regarding feeding ecology and diet. METHODS Samples containing roughly 10-20 hairs (approx. 4-6 cm long) were collected from 49 free ranging macaque monkeys (Macaca sylvanus) in Gibraltar. Hair samples were analyzed for stable carbon and nitrogen isotopes by continuous-flow isotope-ratio mass spectrometry. Cortisol extracted from matched hair samples was measured using gas chromatography/mass spectrometry. Cortisol and stable isotope ratios were compared statistically using nonparametric Kruskal-Wallis and Mann-Whitney U tests, as well as Spearman correlation. RESULTS Correlation analysis revealed that although hair δ15 N and δ13 C values were significantly correlated with each other, neither was correlated with cortisol concentrations. Cortisol concentrations were not correlated with age-adjusted body mass index. Age category was correlated with δ13 C values but not with δ15 N values. CONCLUSIONS The results of our study suggest that the cumulative stress experienced by these macaques under typical social and environmental conditions is not a significant contributor to variation in δ15 N and δ13 C values, nor does it have a significant effect on relative body mass.
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Affiliation(s)
- Michael A Schillaci
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - Jessica Lintlop
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - Monika Sumra
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - Mark Pizarro
- Gibraltar Veterinary Clinic, Rosio Bay, Gibraltar, GX11 1|AA, Gibraltar
| | - Lisa Jones-Engel
- Department of Anthropology, University of Washington, Box 353100, Seattle, WA, 98105, USA
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Tecot SR, Irwin MT, Raharison JL. Faecal glucocorticoid metabolite profiles in diademed sifakas increase during seasonal fruit scarcity with interactive effects of age/sex class and habitat degradation. CONSERVATION PHYSIOLOGY 2019; 7:coz001. [PMID: 30746150 PMCID: PMC6364291 DOI: 10.1093/conphys/coz001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 12/03/2018] [Accepted: 01/07/2019] [Indexed: 05/10/2023]
Abstract
Glucocorticoids are metabolic byproducts of animals' physiological responses to ecological or social challenges and are thought to represent an adaptive response allowing beneficial responses to short-term challenges. Glucocorticoid metabolites (GCs) can be assayed non-invasively through faeces and therefore can be a useful tool to gauge the health of populations experiencing natural and/or anthropogenic stressors. However, the response of GCs to anthropogenic stressors varies, with both higher and lower GC levels reported. Here, we describe variation in GC secretion within eight diademed sifaka (Propithecus diadema) groups across 1 year. These groups span a gradient of anthropogenic habitat disturbance, including groups in continuous forest ('CONT') and disturbed fragments ('FRAG'), and indicators of health suggest that FRAG groups are negatively impacted by habitat disturbance. We monitored phenology, used focal animal follows to quantify diet and collected faeces (n = 547) from which we quantified GC content using enzyme immunoassay. All groups showed elevated lean-season GCs, but with a single, brief peak. GCs were inversely correlated with feeding time. No overall effect of habitat (CONT vs. FRAG) was found, but the lean-season peak was significantly higher in CONT groups. There was a significant season*age-sex interaction; adult females had an attenuated lean-season response compared with groupmates. The observed lean-season 'challenge' is consistent with previous lemur studies, as well as mammals in general. Low and largely invariable GC levels in FRAG, within the context of observed health and nutritional declines, suggest that FRAG groups employ a strategy whereby the adrenal response to stressors is downregulated. More research is needed to contextualize our observations of GC variation and health on an individual level, both in terms of corroborating evidence for ecological and social stressors, and longer-term quantification of reproductive success and fitness.
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Affiliation(s)
- Stacey R Tecot
- School of Anthropology, University of Arizona, Tucson AZ, USA
- Laboratory for the Evolutionary Endocrinology of Primates, School of Anthropology, University of Arizona, Tucson AZ, USA
- Co-first authors
| | - Mitchell T Irwin
- Department of Anthropology, Northern Illinois University, DeKalb IL, USA
- Co-first authors
| | - Jean-Luc Raharison
- NGO Sadabe, Lot AB64bis, Ankadindravola, Ivato Firaisana, 105 Antananarivo, Madagascar
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17
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van Noordwijk MA, Utami Atmoko SS, Knott CD, Kuze N, Morrogh-Bernard HC, Oram F, Schuppli C, van Schaik CP, Willems EP. The slow ape: High infant survival and long interbirth intervals in wild orangutans. J Hum Evol 2018; 125:38-49. [PMID: 30502896 DOI: 10.1016/j.jhevol.2018.09.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 09/14/2018] [Accepted: 09/20/2018] [Indexed: 11/17/2022]
Abstract
Orangutans (Pongo spp.) are reported to have extremely slow life histories, including the longest average interbirth intervals of all mammals. Such slow life history can be viable only when unavoidable mortality is kept low. Thus, orangutans' survivorship under natural conditions is expected to be extremely high. Previous estimates of orangutan life history were based on captive individuals living under very different circumstances or on small samples from wild populations. Here, we combine birth data from seven field sites, each with demographic data collection for at least 10 years (range 12-43 years) on wild orangutans to better document their life history. Using strict criteria for data inclusion, we calculated infant survival, interbirth intervals and female age at first reproduction, across species, subspecies and islands. We found an average closed interbirth interval of 7.6 years, as well as consistently very high pre-weaning survival for males and females. Female survival of 94% until age at first birth (at around age 15 years) was higher than reported for any other mammal species under natural conditions. Similarly, annual survival among parous females is very high, but longevity remains to be estimated. Current data suggest no major life history differences between Sumatran and Bornean orangutans. The high offspring survival is remarkable, noting that modern human populations seem to have reached the same level of survival only in the 20th century. The orangutans' slow life history illustrates what can be achieved if a hominoid bauplan is exposed to low unavoidable mortality. Their high survival is likely due to their arboreal and non-gregarious lifestyle, and has allowed them to maintain viable populations, despite living in low-productivity habitats. However, their slow life history also implies that orangutans are highly vulnerable to a catastrophic population crash in the face of drastic habitat change.
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Affiliation(s)
- Maria A van Noordwijk
- Department of Anthropology, University of Zürich, Winterthurerstr 190, 8057, Zürich, Switzerland.
| | - S Suci Utami Atmoko
- Fakultas Biologi, Universitas Nasional, Jln Sawo Manila, Jakarta, 12520, Indonesia
| | - Cheryl D Knott
- Department of Anthropology, Boston University, Boston, MA, 02215, USA
| | - Noko Kuze
- Department of Anthropology, The National Museum of Nature and Science, Ibaraki, 305-0005, Japan
| | - Helen C Morrogh-Bernard
- Borneo Nature Foundation, Palangkaraya 73112, Indonesia; College of Life and Environmental Science, University of Exeter, Cornwall, TR10 9FE, England, UK
| | - Felicity Oram
- Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, 88400, Malaysia; HUTAN-Kinabatangan Orangutan Conservation Programme Sandakan, Sabah, 88999, Malaysia
| | - Caroline Schuppli
- Department of Anthropology, University of Zürich, Winterthurerstr 190, 8057, Zürich, Switzerland
| | - Carel P van Schaik
- Department of Anthropology, University of Zürich, Winterthurerstr 190, 8057, Zürich, Switzerland
| | - Erik P Willems
- Department of Anthropology, University of Zürich, Winterthurerstr 190, 8057, Zürich, Switzerland
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Abstract
Sex-biased power structures are common in human and nonhuman primate societies. “Female dominance” is a term applied to a wide range of female-biased power structures. However, the full extent of this variation remains obscure because an adequate vocabulary of power has not been adopted consistently. Female power occurs throughout primates and other animals, even in male-dominant societies, but the legacy of patriarchy persists in primatologists’ use of language and implicit assumptions about intersexual power. While explanations for the occurrence of female power can be accommodated within existing ethological theory, many hypotheses seeking to explain the evolution of female power are narrowly focused on particular taxa. Theories about primate social evolution would benefit from a synthesis of the disparate literature on power, increased emphasis on intersexual social relationships, and comparative studies that include the full behavioral diversity of primates and other mammals.
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Affiliation(s)
- Rebecca J. Lewis
- Department of Anthropology, University of Texas at Austin, Austin, Texas 78712, USA
- Ankoatsifaka Research Station, Kirindy Mitea National Park, Morondava 619, Madagascar
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19
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Fuss J, Uhlig G, Böhme M. Earliest evidence of caries lesion in hominids reveal sugar-rich diet for a Middle Miocene dryopithecine from Europe. PLoS One 2018; 13:e0203307. [PMID: 30161214 PMCID: PMC6117023 DOI: 10.1371/journal.pone.0203307] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/17/2018] [Indexed: 12/13/2022] Open
Abstract
The formation of dental caries is mainly caused by dietary habits and therefore, may contain information for dietary reconstructions of fossil hominids. This study investigates the caries lesion in the 12.5 Ma old type specimen of Dryopithecus carinthiacus Mottl 1957 (Primates, Hominidae) from St. Stefan (Austria). Potential food sources are identified on associated palynological data, which allow conclusions about food quality, sugar availability and the hominid metabolism during the Middle Miocene. Using micro computed tomography (μCT) and scanning electron microscopy (SEM) we provide a detailed analysis and characterization of the individuals' caries type. Its lesion is compared with a dataset of 311 wild chimpanzees, indicating morphological and etiological differences in caries formation between both species. The affected molar of D. carinthiacus reveals features known from severe dental caries in humans: (1) Cavitation with steep walls and smooth surface; (2) Reparative dentine at the roof of the pulp chamber; (3) Sclerotic dentine below the cavitation; (4) Association with dental calculus and (5) Unilateral usage of the healthy right tooth row. Its advanced primary caries, initiating on the intact enamel surface, indicates a frequent intake of highly cariogenic sugar-rich fruits, which likely exceeds the frugivory of extant chimpanzees. This finding corresponds with the associated palynological record, which infers a habitat with nearly year-round supply (9-10 months/year) of high quality foods (>carbohydrates; < fibers). Our conclusions challenge the model of a step-wise increase in dietary quality during hominid evolution and support the uricase hypothesis, which discusses the hominid autapomorphy of a fructose-based fat accumulation for periods of starvation. This model receives further validation by the identification of soft-tissue preservation, interpreted as fossilized white adipose cells, in the articulated hominid skeleton of Oreopithecus bamboli from Italy.
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Affiliation(s)
- Jochen Fuss
- Department of Geoscience, Eberhard-Karls-University Tübingen, Tübingen, Germany
- Senckenberg Centre for Human Evolution and Palaeoenvironment (HEP), Tübingen, Germany
| | - Gregor Uhlig
- Department of Chemistry and Food Chemistry, Technical University Dresden, Dresden, Germany
| | - Madelaine Böhme
- Department of Geoscience, Eberhard-Karls-University Tübingen, Tübingen, Germany
- Senckenberg Centre for Human Evolution and Palaeoenvironment (HEP), Tübingen, Germany
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20
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Higham JP, Dominy NJ. The promise of primatology fulfilled? AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2018; 166:783-790. [PMID: 30133694 DOI: 10.1002/ajpa.23620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/08/2018] [Accepted: 05/12/2018] [Indexed: 11/06/2022]
Abstract
In 1972, Sherwood Washburn, one of the forerunners of biological anthropology, gave an invited address during the 4th Congress of the International Primatological Society in Portland, Oregon, in which he expounded his vision for the field of primatology. His address was published the following year in the American Journal of Physical Anthropology and titled: "The promise of primatology." In this centennial commentary, we revisit Washburn's "promise", 45 years on. His address and article discuss the constraints acting on the field, including a positioning of the discipline across different kinds of university departments, and within the social sciences, which he viewed as a mixed blessing. Prescient aspects of Washburn's address include a focus on the need to study communication multimodally, and a hope that the study of mechanisms would become foundational within the field. We discuss new promising aspects of primatology, focusing on technological advances in a number of areas highlighted by Washburn that have ushered in new eras of research, and the increasingly large number of long-term field sites, which see the discipline well-set for new developmental and longitudinal studies. We find much to admire in Washburn's keen foresight, and natural intuition. Washburn hoped that primatology would repudiate the notion that "the social should be studied without reference to the biological." In this regard, we consider much of Washburn's promise fulfilled.
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Affiliation(s)
- James P Higham
- Department of Anthropology, New York University, New York, New York 10003
| | - Nathaniel J Dominy
- Department of Anthropology, Dartmouth College, Hanover, New Hampshire 03755.,Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755
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21
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Barboza PS, Van Someren LL, Gustine DD, Bret‐Harte MS. The nitrogen window for arctic herbivores: plant phenology and protein gain of migratory caribou (
Rangifer tarandus
). Ecosphere 2018. [DOI: 10.1002/ecs2.2073] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Perry S. Barboza
- Department of Biology and Wildlife University of Alaska Fairbanks Fairbanks Alaska 99775 USA
- Institute of Arctic Biology University of Alaska Fairbanks Fairbanks Alaska 99775 USA
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
| | - Lindsay L. Van Someren
- Department of Biology and Wildlife University of Alaska Fairbanks Fairbanks Alaska 99775 USA
| | - David D. Gustine
- U.S. Geological Survey Alaska Science Center 4210 University Drive Anchorage Alaska 99508 USA
| | - M. Syndonia Bret‐Harte
- Department of Biology and Wildlife University of Alaska Fairbanks Fairbanks Alaska 99775 USA
- Institute of Arctic Biology University of Alaska Fairbanks Fairbanks Alaska 99775 USA
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22
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Lowenstine LJ, McManamon R, Terio KA. Apes. PATHOLOGY OF WILDLIFE AND ZOO ANIMALS 2018. [PMCID: PMC7173580 DOI: 10.1016/b978-0-12-805306-5.00015-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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23
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Cabana F, Jasmi R, Maguire R. Great ape nutrition: low-sugar and high-fibre diets can lead to increased natural behaviours, decreased regurgitation and reingestion, and reversal of prediabetes. ACTA ACUST UNITED AC 2017. [DOI: 10.1111/izy.12172] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- F. Cabana
- Wildlife Nutrition Centre; Wildlife Reserves Singapore; 80 Mandai Lake Road Singapore 729826
| | - R. Jasmi
- Wildlife Nutrition Centre; Wildlife Reserves Singapore; 80 Mandai Lake Road Singapore 729826
| | - R. Maguire
- Veterinary Services; Wildlife Reserves Singapore; 80 Mandai Lake Road Singapore 729826
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24
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Emery Thompson M. Energetics of feeding, social behavior, and life history in non-human primates. Horm Behav 2017; 91:84-96. [PMID: 27594442 DOI: 10.1016/j.yhbeh.2016.08.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 08/29/2016] [Accepted: 08/30/2016] [Indexed: 01/05/2023]
Abstract
Energy is a variable of key importance to a wide range of research in primate behavioral ecology, life history, and conservation. However, obtaining detailed data on variation in energetic condition, and its biological consequences, has been a considerable challenge. In the past 20years, tremendous strides have been made towards non-invasive methods for monitoring the physiology of animals in their natural environment. These methods provide detailed, individualized data about energetic condition, as well as energy allocations to growth, reproduction, and somatic health. In doing so, they add much-needed resolution by which to move beyond correlative studies to research programs that can discriminate causes from effects and disaggregate multiple correlated features of the social and physical environment. In this review, I describe the conceptual and methodological approaches for studying primate energetics. I then discuss the core questions about primate feeding ecology, social behavior, and life history that can benefit from physiological studies, highlighting the ways in which recent research has done so. Among these are studies that test, and often refute, common assumptions about how feeding ecology shapes primate biology, and those that reveal proximate associations between energetics and reproductive strategies.
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Affiliation(s)
- Melissa Emery Thompson
- Department of Anthropology, University of New Mexico, MSC01-1040, 500 University Blvd NE, Albuquerque 87131, Mexico.
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25
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Emery Thompson M. Energetics of feeding, social behavior, and life history in non-human primates. Horm Behav 2017; 91:84-96. [PMID: 27594442 DOI: 10.10.1016/j.yhbeh.2016.08.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 08/29/2016] [Accepted: 08/30/2016] [Indexed: 05/21/2023]
Abstract
Energy is a variable of key importance to a wide range of research in primate behavioral ecology, life history, and conservation. However, obtaining detailed data on variation in energetic condition, and its biological consequences, has been a considerable challenge. In the past 20years, tremendous strides have been made towards non-invasive methods for monitoring the physiology of animals in their natural environment. These methods provide detailed, individualized data about energetic condition, as well as energy allocations to growth, reproduction, and somatic health. In doing so, they add much-needed resolution by which to move beyond correlative studies to research programs that can discriminate causes from effects and disaggregate multiple correlated features of the social and physical environment. In this review, I describe the conceptual and methodological approaches for studying primate energetics. I then discuss the core questions about primate feeding ecology, social behavior, and life history that can benefit from physiological studies, highlighting the ways in which recent research has done so. Among these are studies that test, and often refute, common assumptions about how feeding ecology shapes primate biology, and those that reveal proximate associations between energetics and reproductive strategies.
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Affiliation(s)
- Melissa Emery Thompson
- Department of Anthropology, University of New Mexico, MSC01-1040, 500 University Blvd NE, Albuquerque 87131, Mexico.
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26
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Smith TM, Austin C, Hinde K, Vogel ER, Arora M. Cyclical nursing patterns in wild orangutans. SCIENCE ADVANCES 2017; 3:e1601517. [PMID: 28560319 PMCID: PMC5435413 DOI: 10.1126/sciadv.1601517] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 03/16/2017] [Indexed: 06/01/2023]
Abstract
Nursing behavior is notoriously difficult to study in arboreal primates, particularly when offspring suckle inconspicuously in nests. Orangutans have the most prolonged nursing period of any mammal, with the cessation of suckling (weaning) estimated to occur at 6 to 8 years of age in the wild. Milk consumption is hypothesized to be relatively constant over this period, but direct evidence is limited. We previously demonstrated that trace element analysis of bioavailable elements from milk, such as barium, provides accurate estimates of early-life diet transitions and developmental stress when coupled with growth lines in the teeth of humans and nonhuman primates. We provide the first detailed nursing histories of wild, unprovisioned orangutans (Pongo abelii and Pongo pygmaeus) using chemical and histological analyses. Laser ablation inductively coupled plasma mass spectrometry was used to determine barium distributions across the teeth of four wild-shot individuals aged from postnatal biological rhythms. Barium levels rose during the first year of life in all individuals and began to decline shortly after, consistent with behavioral observations of intensive nursing followed by solid food supplementation. Subsequent barium levels show large sustained fluctuations on an approximately annual basis. These patterns appear to be due to cycles of varying milk consumption, continuing until death in an 8.8-year-old Sumatran individual. A female Bornean orangutan ceased suckling at 8.1 years of age. These individuals exceed the maximum weaning age reported for any nonhuman primate. Orangutan nursing may reflect cycles of infant demand that relate to fluctuating resource availability.
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Affiliation(s)
- Tanya M. Smith
- Australian Research Centre for Human Evolution, Environmental Futures Research Institute, Griffith University, 170 Kessels Road, Nathan, Queensland 4111, Australia
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - Christine Austin
- The Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Katie Hinde
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
- School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85281, USA
- Center for Evolution and Medicine, Arizona State University, Tempe, AZ 85281, USA
| | - Erin R. Vogel
- Department of Anthropology, Center for Human Evolutionary Studies, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901–1414, USA
| | - Manish Arora
- The Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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27
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Roberts P, Boivin N, Lee-Thorp J, Petraglia M, Stock J. Tropical forests and the genus Homo. Evol Anthropol 2017; 25:306-317. [PMID: 28004892 DOI: 10.1002/evan.21508] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Indexed: 11/05/2022]
Abstract
Tropical forests constitute some of the most diverse and complex terrestrial ecosystems on the planet. From the Miocene onward, they have acted as a backdrop to the ongoing evolution of our closest living relatives, the great apes, and provided the cradle for the emergence of early hominins, who retained arboreal physiological adaptations at least into the Late Pliocene. There also now exists growing evidence, from the Late Pleistocene onward, for tool-assisted intensification of tropical forest occupation and resource extraction by our own species, Homo sapiens. However, between the Late Pliocene and Late Pleistocene there is an apparent gap in clear and convincing evidence for the use of tropical forests by hominins, including early members of our own genus. In discussions of Late Pliocene and Early Pleistocene hominin evolution, including the emergence and later expansion of Homo species across the globe, tropical forest adaptations tend to be eclipsed by open, savanna environments. Thus far, it is not clear whether this Early-Middle Pleistocene lacuna in Homo-rainforest interaction is real and representative of an adaptive shift with the emergence of our species or if it is simply reflective of preservation bias.
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Cabana F, Dierenfeld E, Wirdateti W, Donati G, Nekaris K. The seasonal feeding ecology of the javan slow loris (nycticebus javanicus). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 162:768-781. [DOI: 10.1002/ajpa.23168] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 12/16/2016] [Accepted: 12/21/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Francis Cabana
- Nocturnal Primate Research Group, Oxford Brookes University; Oxford OX3 0BP UK
- Wildlife Reserves Singapore; Singapore 729826 Singapore
| | | | | | - Giuseppe Donati
- Nocturnal Primate Research Group, Oxford Brookes University; Oxford OX3 0BP UK
| | - K.A.I. Nekaris
- Nocturnal Primate Research Group, Oxford Brookes University; Oxford OX3 0BP UK
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Vogel ER, Alavi SE, Utami-Atmoko SS, van Noordwijk MA, Bransford TD, Erb WM, Zulfa A, Sulistyo F, Farida WR, Rothman JM. Nutritional ecology of wild Bornean orangutans (Pongo pygmaeus wurmbii) in a peat swamp habitat: Effects of age, sex, and season. Am J Primatol 2016; 79:1-20. [PMID: 27889926 DOI: 10.1002/ajp.22618] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 09/23/2016] [Accepted: 10/25/2016] [Indexed: 11/08/2022]
Abstract
The spatial and temporal variation in food abundance has strong effects on wildlife feeding and nutrition. This variation is exemplified by the peatland forests of Central Kalimantan, which are characterized by unpredictable fruiting fluctuations, relatively low levels of fruit availability, and low fruit periods (<3% of trees fruiting) that can last nearly a year. Challenged by these environments, large, arboreal frugivores like orangutans must periodically rely on non-preferred, lower-quality foods to meet their nutritional needs. We examined variation in nutrient intake among age-sex classes and seasons over a 7-year period at the Tuanan Orangutan Research Station in Central Kalimantan. We conducted 2,316 full-day focal follows on 62 habituated orangutans (Pongo pygmaeus wurmbii). We found differences in total energy and macronutrient intake across age-sex classes, controlling for metabolic body mass. Intake of both total energy and macronutrients varied with fruit availability, and preference of dietary items increased with their nutritional quality. Foraging-related variables, such as day journey length, travel time, and feeding time, also varied among age-sex classes and with fruit availability. Our results add to the growing body of literature suggesting that great variation in foraging strategies exists among species, populations, and age-sex classes and in response to periods of resource scarcity. RESEARCH HIGHLIGHTS The spatial and temporal variation in food abundance has strong effects on wildlife feeding and nutrition. Here we present the first long term study of the effects of variation in fruit availability and age/sex class on nutritional ecology of wild Bornean orangutans. We examined variation in nutrient intake of wild orangutans in living in a peat swamp habitat over a 7-year period at the Tuanan Orangutan Research Station in Central Kalimantan. We conducted 2,316 full-day focal follows on 62 habituated orangutans (Pongo pygmaeus wurmbii). We found differences in total energy and macronutrient intake across age-sex classes, controlling for metabolic body mass. Intake of both total energy and macronutrients varied with fruit availability, and preference of dietary items increased with their nutritional quality. Foraging-related variables, such as day journey length, travel time, and feeding time, also varied among age-sex classes and with fruit availability. Our results add to the growing body of literature suggesting that great variation in foraging strategies exists among species, populations, and age-sex classes and in response to periods of resource scarcity.
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Affiliation(s)
- Erin R Vogel
- Department of Anthropology, Rutgers University, New Brunswick, New Jersey.,The Center for Human Evolutionary Studies, Rutgers University, New Brunswick, New Jersey.,Graduate Program in Ecology and Evolution, Rutgers University, New Brunswick, New Jersey
| | - Shauhin E Alavi
- Department of Anthropology, Rutgers University, New Brunswick, New Jersey.,The Center for Human Evolutionary Studies, Rutgers University, New Brunswick, New Jersey
| | | | | | - Timothy D Bransford
- Department of Anthropology, Rutgers University, New Brunswick, New Jersey.,The Center for Human Evolutionary Studies, Rutgers University, New Brunswick, New Jersey
| | - Wendy M Erb
- Department of Anthropology, Rutgers University, New Brunswick, New Jersey.,The Center for Human Evolutionary Studies, Rutgers University, New Brunswick, New Jersey
| | - Astri Zulfa
- Falkutas Biologi, Universitas Nasional Jakarta, Jakarta, Indonesia
| | | | - Wartika Rosa Farida
- Research Center for Biology, Indonesian Institute of Sciences (LIPI), Cibinong-Bogor, Indonesia
| | - Jessica M Rothman
- Department of Anthropology, Hunter College of the City University of New York, New York, New York
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Oelze VM, Douglas PH, Stephens CR, Surbeck M, Behringer V, Richards MP, Fruth B, Hohmann G. The Steady State Great Ape? Long Term Isotopic Records Reveal the Effects of Season, Social Rank and Reproductive Status on Bonobo Feeding Behavior. PLoS One 2016; 11:e0162091. [PMID: 27626279 PMCID: PMC5023189 DOI: 10.1371/journal.pone.0162091] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 08/17/2016] [Indexed: 11/18/2022] Open
Abstract
Dietary ecology of extant great apes is known to respond to environmental conditions such as climate and food availability, but also to vary depending on social status and life history characteristics. Bonobos (Pan paniscus) live under comparatively steady ecological conditions in the evergreen rainforests of the Congo Basin. Bonobos are an ideal species for investigating influences of sociodemographic and physiological factors, such as female reproductive status, on diet. We investigate the long term dietary pattern in wild but fully habituated bonobos by stable isotope analysis in hair and integrating a variety of long-term sociodemographic information obtained through observations. We analyzed carbon and nitrogen stable isotopes in 432 hair sections obtained from 101 non-invasively collected hair samples. These samples represented the dietary behavior of 23 adult bonobos from 2008 through 2010. By including isotope and crude protein data from plants we could establish an isotope baseline and interpret the results of several general linear mixed models using the predictors climate, sex, social rank, reproductive state of females, adult age and age of infants. We found that low canopy foliage is a useful isotopic tracer for tropical rainforest settings, and consumption of terrestrial herbs best explains the temporal isotope patterns we found in carbon isotope values of bonobo hair. Only the diet of male bonobos was affected by social rank, with lower nitrogen isotope values in low-ranking young males. Female isotope values mainly differed between different stages of reproduction (cycling, pregnancy, lactation). These isotopic differences appear to be related to changes in dietary preference during pregnancy (high protein diet) and lactation (high energy diet), which allow to compensate for different nutritional needs during maternal investment.
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Affiliation(s)
- Vicky M. Oelze
- Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Saxony, Germany
- iDiv – German Centre for Integrative Biodiversity Research, Leipzig, Saxony, Germany
| | - Pamela Heidi Douglas
- Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Saxony, Germany
| | - Colleen R. Stephens
- Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Saxony, Germany
| | - Martin Surbeck
- Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Saxony, Germany
| | - Verena Behringer
- Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Saxony, Germany
| | - Michael P. Richards
- Max Planck Institute for Evolutionary Anthropology, Department of Human Evolution, Leipzig, Saxony, Germany
- Department of Anthropology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Barbara Fruth
- Division of Neurobiology, Ludwig-Maximilians University Munich, Bavaria, Germany
- Centre for Research and Conservation, Royal Zoological Society of Antwerp, Antwerp, Flanders, Belgium
| | - Gottfried Hohmann
- Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Saxony, Germany
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Eppley TM, Donati G, Ganzhorn JU. Determinants of terrestrial feeding in an arboreal primate: The case of the southern bamboo lemur (Hapalemur meridionalis). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 161:328-42. [DOI: 10.1002/ajpa.23034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 06/02/2016] [Accepted: 06/05/2016] [Indexed: 02/01/2023]
Affiliation(s)
- Timothy M. Eppley
- Department of Anthropology; University of Texas at Austin; 2201 Speedway Stop C3200 Austin Texas 78712
- Department of Animal Ecology and Conservation, Biozentrum Grindel; University of Hamburg; Martin-Luther-King Platz 3 Hamburg 20146 Germany
- Nocturnal Primate Research Group, Department of Social Sciences; Oxford Brookes University; Gipsy Lane Oxford OX3 0BP United Kingdom
| | - Giuseppe Donati
- Nocturnal Primate Research Group, Department of Social Sciences; Oxford Brookes University; Gipsy Lane Oxford OX3 0BP United Kingdom
| | - Jörg U. Ganzhorn
- Department of Animal Ecology and Conservation, Biozentrum Grindel; University of Hamburg; Martin-Luther-King Platz 3 Hamburg 20146 Germany
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Janmaat KR, Boesch C, Byrne R, Chapman CA, Goné Bi ZB, Head JS, Robbins MM, Wrangham RW, Polansky L. Spatio-temporal complexity of chimpanzee food: How cognitive adaptations can counteract the ephemeral nature of ripe fruit. Am J Primatol 2016; 78:626-45. [DOI: 10.1002/ajp.22527] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 12/12/2015] [Accepted: 12/17/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Karline R.L. Janmaat
- Department of Primatology; Max Planck Institute for Evolutionary Anthropology; Leipzig Germany
| | - Christophe Boesch
- Department of Primatology; Max Planck Institute for Evolutionary Anthropology; Leipzig Germany
| | - Richard Byrne
- School of Psychology and Neuroscience; University of St Andrews; St Andrews United Kingdom
| | - Colin A. Chapman
- Department of Anthropology and McGill School of Environment; McGill University; Montreal Canada
| | - Zoro B. Goné Bi
- UFR Biosciences; Université Félix Houphouët Boigny; Abidjan, Côte d'Ivoire
| | - Josephine S. Head
- Department of Primatology; Max Planck Institute for Evolutionary Anthropology; Leipzig Germany
| | - Martha M. Robbins
- Department of Primatology; Max Planck Institute for Evolutionary Anthropology; Leipzig Germany
| | - Richard W. Wrangham
- Department of Human Evolutionary Anthropology; Harvard University; Cambridge Massachusetts
| | - Leo Polansky
- Department of Primatology; Max Planck Institute for Evolutionary Anthropology; Leipzig Germany
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Lowenstine LJ, McManamon R, Terio KA. Comparative Pathology of Aging Great Apes: Bonobos, Chimpanzees, Gorillas, and Orangutans. Vet Pathol 2015; 53:250-76. [PMID: 26721908 DOI: 10.1177/0300985815612154] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The great apes (chimpanzees, bonobos, gorillas, and orangutans) are our closest relatives. Despite the many similarities, there are significant differences in aging among apes, including the human ape. Common to all are dental attrition, periodontitis, tooth loss, osteopenia, and arthritis, although gout is uniquely human and spondyloarthropathy is more prevalent in apes than humans. Humans are more prone to frailty, sarcopenia, osteoporosis, longevity past reproductive senescence, loss of brain volume, and Alzheimer dementia. Cerebral vascular disease occurs in both humans and apes. Cardiovascular disease mortality increases in aging humans and apes, but coronary atherosclerosis is the most significant type in humans. In captive apes, idiopathic myocardial fibrosis and cardiomyopathy predominate, with arteriosclerosis of intramural coronary arteries. Similar cardiac lesions are occasionally seen in wild apes. Vascular changes in heart and kidneys and aortic dissections in gorillas and bonobos suggest that hypertension may be involved in pathogenesis. Chronic kidney disease is common in elderly humans and some aging apes and is linked with cardiovascular disease in orangutans. Neoplasms common to aging humans and apes include uterine leiomyomas in chimpanzees, but other tumors of elderly humans, such as breast, prostate, lung, and colorectal cancers, are uncommon in apes. Among the apes, chimpanzees have been best studied in laboratory settings, and more comparative research is needed into the pathology of geriatric zoo-housed and wild apes. Increasing longevity of humans and apes makes understanding aging processes and diseases imperative for optimizing quality of life in all the ape species.
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Affiliation(s)
- L J Lowenstine
- Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA, USA Mountain Gorilla Veterinary Project-Gorilla Doctors, Karen C. Drayer Wildlife Health Center, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - R McManamon
- Zoo and Exotic Animal Pathology Service, Infectious Diseases Laboratory, Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - K A Terio
- Zoological Pathology Program, University of Illinois College of Veterinary Medicine, Maywood, IL, USA
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Crowley BE, Reitsema LJ, Oelze VM, Sponheimer M. Advances in primate stable isotope ecology-Achievements and future prospects. Am J Primatol 2015; 78:995-1003. [PMID: 26683892 DOI: 10.1002/ajp.22510] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 11/24/2015] [Accepted: 11/25/2015] [Indexed: 12/28/2022]
Abstract
Stable isotope biogeochemistry has been used to investigate foraging ecology in non-human primates for nearly 30 years. Whereas early studies focused on diet, more recently, isotopic analysis has been used to address a diversity of ecological questions ranging from niche partitioning to nutritional status to variability in life history traits. With this increasing array of applications, stable isotope analysis stands to make major contributions to our understanding of primate behavior and biology. Most notably, isotopic data provide novel insights into primate feeding behaviors that may not otherwise be detectable. This special issue brings together some of the recent advances in this relatively new field. In this introduction to the special issue, we review the state of isotopic applications in primatology and its origins and describe some developing methodological issues, including techniques for analyzing different tissue types, statistical approaches, and isotopic baselines. We then discuss the future directions we envision for the field of primate isotope ecology. Am. J. Primatol. 78:995-1003, 2016. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Brooke E Crowley
- Departments of Geology and Anthropology, University of Cincinnati, Cincinnati, Ohio.
| | | | - Vicky M Oelze
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Matt Sponheimer
- Department of Anthropology, University of Colorado, Boulder, Colorado
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Vogel ER, Harrison ME, Zulfa A, Bransford TD, Alavi SE, Husson S, Morrogh-Bernard H, Santiano, Firtsman T, Utami-Atmoko SS, van Noordwijk MA, Farida WR. Nutritional Differences between Two Orangutan Habitats: Implications for Population Density. PLoS One 2015; 10:e0138612. [PMID: 26466370 PMCID: PMC4605688 DOI: 10.1371/journal.pone.0138612] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 08/31/2015] [Indexed: 11/18/2022] Open
Abstract
Bottom-up regulatory factors have been proposed to exert a strong influence on mammalian population density. Studies relating habitat quality to population density have typically made comparisons among distant species or communities without considering variation in food quality among localities. We compared dietary nutritional quality of two Bornean orangutan populations with differing population densities in peatland habitats, Tuanan and Sabangau, separated by 63 km. We hypothesized that because Tuanan is alluvial, the plant species included in the orangutan diet would be of higher nutritional quality compared to Sabangau, resulting in higher daily caloric intake in Tuanan. We also predicted that forest productivity would be greater in Tuanan compared to Sabangau. In support of these hypotheses, the overall quality of the diet and the quality of matched dietary items were higher in Tuanan, resulting in higher daily caloric intake compared to Sabangau. These differences in dietary nutritional quality may provide insights into why orangutan population density is almost two times greater in Tuanan compared to Sabangau, in agreement with a potentially important influence of diet quality on primate population density.
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Affiliation(s)
- Erin R. Vogel
- Department of Anthropology, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Mark E. Harrison
- Department of Geography, University of Leicester, Leicester, United Kingdom
- The Orangutan Tropical Peatland Project, Palangka Raya, Indonesia
| | - Astri Zulfa
- Fakultas Biologi, Universitas Nasional Jakarta, Jakarta, Indonesia
| | - Timothy D. Bransford
- Department of Anthropology, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Shauhin E. Alavi
- Department of Anthropology, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Simon Husson
- The Orangutan Tropical Peatland Project, Palangka Raya, Indonesia
| | | | - Santiano
- The Orangutan Tropical Peatland Project, Palangka Raya, Indonesia
- Centre for the International Cooperation in Sustainable Management of Tropical Peatlands, Palangka Raya, Indonesia
| | - Twentinolosa Firtsman
- The Orangutan Tropical Peatland Project, Palangka Raya, Indonesia
- Centre for the International Cooperation in Sustainable Management of Tropical Peatlands, Palangka Raya, Indonesia
| | | | | | - Wartika Rosa Farida
- Research Center for Biology, Indonesian Institute of Sciences (LIPI), Cibinong-Bogor, Indonesia
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Harrison ME, Zweifel N, Husson SJ, Cheyne SM, D'Arcy LJ, Harsanto FA, Morrogh‐Bernard H, Purwanto A, Rahmatd , Santiano , Vogel ER, Wich SA, Noordwijk MA. Disparity in Onset Timing and Frequency of Flowering and Fruiting Events in Two Bornean Peat‐Swamp Forests. Biotropica 2015. [DOI: 10.1111/btp.12265] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark E. Harrison
- Department of Geography University of Leicester University Road Leicester LE1 7RH U.K
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
| | - Nicole Zweifel
- Anthropological Institute and Museum University of Zurich 8057 Zürich Switzerland
- Tuanan Orangutan Research Project Jl. Cendrawasih 7 Palangka Raya 73111 Indonesia
| | - Simon J. Husson
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
| | - Susan M. Cheyne
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
- Department of Zoology Wildlife Conservation Research Unit (WildCRU) Recanati‐Kaplan Centre University of Oxford Tubney House Abingdon Road Tubney OX13 5QL U.K
| | - Laura J. D'Arcy
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
- Conservation Programmes Zoological Society of London Regent's Park London NW1 4RY U.K
| | - Fransiskus A. Harsanto
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
- Centre for the International Cooperation in Sustainable Management of Tropical Peatlands University of Palangka Raya Palangka Raya 73112 Central Kalimantan Indonesia
| | - Helen C. Morrogh‐Bernard
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
- University of Exeter College of Life and Environmental Science Washington Singer Building Perry Road Exeter EX4 4QG U.K
| | - Ari Purwanto
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
- Centre for the International Cooperation in Sustainable Management of Tropical Peatlands University of Palangka Raya Palangka Raya 73112 Central Kalimantan Indonesia
| | - Rahmatd
- Tuanan Orangutan Research Project Jl. Cendrawasih 7 Palangka Raya 73111 Indonesia
| | - Santiano
- Orangutan Tropical Peatland Project Jl. Semeru 91 Palangka Raya 73112 Central Kalimantan Indonesia
- Centre for the International Cooperation in Sustainable Management of Tropical Peatlands University of Palangka Raya Palangka Raya 73112 Central Kalimantan Indonesia
| | - Erin R. Vogel
- Tuanan Orangutan Research Project Jl. Cendrawasih 7 Palangka Raya 73111 Indonesia
- Department of Anthropology Rutgers The State University of New Jersey New Brunswick NJ U.S.A
| | - Serge A. Wich
- Tuanan Orangutan Research Project Jl. Cendrawasih 7 Palangka Raya 73111 Indonesia
- School of Natural Sciences & Psychology Liverpool John Moores University Liverpool U.K
- Institute for Biodiversity and Ecosystem Dynamics University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Maria A. Noordwijk
- Anthropological Institute and Museum University of Zurich 8057 Zürich Switzerland
- Tuanan Orangutan Research Project Jl. Cendrawasih 7 Palangka Raya 73111 Indonesia
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Reitsema LJ. Laboratory and field methods for stable isotope analysis in human biology. Am J Hum Biol 2015. [DOI: 10.1002/ajhb.22754] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Masi S, Mundry R, Ortmann S, Cipolletta C, Boitani L, Robbins MM. The Influence of Seasonal Frugivory on Nutrient and Energy Intake in Wild Western Gorillas. PLoS One 2015; 10:e0129254. [PMID: 26154509 PMCID: PMC4495928 DOI: 10.1371/journal.pone.0129254] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 05/06/2015] [Indexed: 11/19/2022] Open
Abstract
The daily energy requirements of animals are determined by a combination of physical and physiological factors, but food availability may challenge the capacity to meet nutritional needs. Western gorillas (Gorilla gorilla) are an interesting model for investigating this topic because they are folivore-frugivores that adjust their diet and activities to seasonal variation in fruit availability. Observations of one habituated group of western gorillas in Bai-Hokou, Central African Republic (December 2004-December 2005) were used to examine seasonal variation in diet quality and nutritional intake. We tested if during the high fruit season the food consumed by western gorillas was higher in quality (higher in energy, sugar, fat but lower in fibre and antifeedants) than during the low fruit season. Food consumed during the high fruit season was higher in digestible energy, but not any other macronutrients. Second, we investigated whether the gorillas increased their daily intake of carbohydrates, metabolizable energy (KCal/g OM), or other nutrients during the high fruit season. Intake of dry matter, fibers, fat, protein and the majority of minerals and phenols decreased with increased frugivory and there was some indication of seasonal variation in intake of energy (KCal/g OM), tannins, protein/fiber ratio, and iron. Intake of non-structural carbohydrates and sugars was not influenced by fruit availability. Gorillas are probably able to extract large quantities of energy via fermentation since they rely on proteinaceous leaves during the low fruit season. Macronutrients and micronutrients, but not digestible energy, may be limited for them during times of low fruit availability because they are hind-gut fermenters. We discuss the advantages of seasonal frugivores having large dietary breath and flexibility, significant characteristics to consider in the conservation strategies of endangered species.
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Affiliation(s)
- Shelly Masi
- Max Planck Institute for Evolutionary Anthropology, D-04103, Leipzig, Germany
- Department of Animal and Human Biology, University of Rome “La Sapienza”, 00185, Rome, Italy
| | - Roger Mundry
- Max Planck Institute for Evolutionary Anthropology, D-04103, Leipzig, Germany
| | - Sylvia Ortmann
- RG Evolutionary Ecology, Leibniz-Institute for Zoo and Wildlife Research, D-10315, Berlin, Germany
| | | | - Luigi Boitani
- Department of Animal and Human Biology, University of Rome “La Sapienza”, 00185, Rome, Italy
| | - Martha M. Robbins
- Max Planck Institute for Evolutionary Anthropology, D-04103, Leipzig, Germany
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Irwin MT, Raharison JL, Raubenheimer DR, Chapman CA, Rothman JM. The Nutritional Geometry of Resource Scarcity: Effects of Lean Seasons and Habitat Disturbance on Nutrient Intakes and Balancing in Wild Sifakas. PLoS One 2015; 10:e0128046. [PMID: 26061401 PMCID: PMC4464895 DOI: 10.1371/journal.pone.0128046] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 04/21/2015] [Indexed: 12/03/2022] Open
Abstract
Animals experience spatial and temporal variation in food and nutrient supply, which may cause deviations from optimal nutrient intakes in both absolute amounts (meeting nutrient requirements) and proportions (nutrient balancing). Recent research has used the geometric framework for nutrition to obtain an improved understanding of how animals respond to these nutritional constraints, among them free-ranging primates including spider monkeys and gorillas. We used this framework to examine macronutrient intakes and nutrient balancing in sifakas (Propithecus diadema) at Tsinjoarivo, Madagascar, in order to quantify how these vary across seasons and across habitats with varying degrees of anthropogenic disturbance. Groups in intact habitat experience lean season decreases in frugivory, amounts of food ingested, and nutrient intakes, yet preserve remarkably constant proportions of dietary macronutrients, with the proportional contribution of protein to the diet being highly consistent. Sifakas in disturbed habitat resemble intact forest groups in the relative contribution of dietary macronutrients, but experience less seasonality: all groups' diets converge in the lean season, but disturbed forest groups largely fail to experience abundant season improvements in food intake or nutritional outcomes. These results suggest that: (1) lemurs experience seasonality by maintaining nutrient balance at the expense of calories ingested, which contrasts with earlier studies of spider monkeys and gorillas, (2) abundant season foods should be the target of habitat management, even though mortality might be concentrated in the lean season, and (3) primates' within-group competitive landscapes, which contribute to variation in social organization, may vary in complex ways across habitats and seasons.
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Affiliation(s)
- Mitchell T. Irwin
- Department of Anthropology, Northern Illinois University, DeKalb, Illinois, United States of America
- SADABE Madagascar, Antananarivo, Madagascar
| | - Jean-Luc Raharison
- SADABE Madagascar, Antananarivo, Madagascar
- Department of Animal Biology, University of Antananarivo, Antananarivo, Madagascar
| | - David R. Raubenheimer
- Charles Perkins Centre, Faculty of Veterinary Science, The University of Sydney, Sydney, New South Wales, Australia
- School of Biological Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Colin A. Chapman
- Department of Anthropology, McGill University, Montreal, Quebec, Canada
- McGill School of Environment, McGill University, Montreal, Quebec, Canada
- Wildlife Conservation Society, Bronx, New York, United States of America
| | - Jessica M. Rothman
- Department of Anthropology, Hunter College, City University of New York, New York, New York, United States of America
- New York Consortium in Evolutionary Primatology (NYCEP), New York, New York, United States of America
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Mourthé I. Response of frugivorous primates to changes in fruit supply in a northern Amazonian forest. BRAZ J BIOL 2014; 74:720-7. [DOI: 10.1590/bjb.2014.0088] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 04/01/2013] [Indexed: 11/22/2022] Open
Abstract
Few attempts have been made to understand how spatiotemporal changes in fruit supply influence frugivores in tropical forests. The marked spatiotemporal variation in fruit supply can affect frugivore abundance and distribution, but studies addressing the effects of this variation on primates are scarce. The present study aimed to investigate how the spatiotemporal distribution of fruits influences the local distribution of three frugivorous primates in the eastern part of the Maracá Ecological Station, a highly seasonal Amazonian rainforest. Specifically, it was hypothesised that primate distribution will track changes in fruit supply, resulting that sites with high fruit availability should be heavily used by primates. During a 1-year study, fruit supply (ground fruit surveys) and primate density (line-transects) were monitored in twelve 2 km-long transects at monthly intervals. Fruit supply varied seasonally, being low during the dry season. The density of Ateles belzebuth was positively related to fruit supply during fruit shortage, but Cebus olivaceus and Alouatta macconnelli did not follow the same pattern. The supply of Sapotaceae fruit was an important component determining local distribution of A. belzebuth during the overall fruit shortage. Highly frugivorous primates such as A. belzebuth respond to seasonal decline in fruit supply by congregating at places with high fruit supply in this forest, particularly, those with many individuals of species of Sapotaceae. This study underscores the importance of small-scale spatiotemporal changes of fruit supply as a key component of frugivorous primate ecology in highly seasonal environments.
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Moritz GL, Melin AD, Tuh Yit Yu F, Bernard H, Ong PS, Dominy NJ. Niche convergence suggests functionality of the nocturnal fovea. Front Integr Neurosci 2014; 8:61. [PMID: 25120441 PMCID: PMC4110675 DOI: 10.3389/fnint.2014.00061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 07/08/2014] [Indexed: 11/24/2022] Open
Abstract
The fovea is a declivity of the retinal surface associated with maximum visual acuity. Foveae are widespread across vertebrates, but among mammals they are restricted to haplorhine primates (tarsiers, monkeys, apes, and humans), which are primarily diurnal. Thus primates have long contributed to the view that foveae are functional adaptations to diurnality. The foveae of tarsiers, which are nocturnal, are widely interpreted as vestigial traits and therefore evidence of a diurnal ancestry. This enduring premise is central to adaptive hypotheses on the origins of anthropoid primates; however, the question of whether tarsier foveae are functionless anachronisms or nocturnal adaptations remains open. To explore this question, we compared the diets of tarsiers (Tarsius) and scops owls (Otus), taxa united by numerous anatomical homoplasies, including foveate vision. A functional interpretation of these homoplasies predicts dietary convergence. We tested this prediction by analyzing stable isotope ratios that integrate dietary information. In Borneo and the Philippines, the stable carbon isotope compositions of Tarsius and Otus were indistinguishable, whereas the stable nitrogen isotope composition of Otus was marginally higher than that of Tarsius. Our results indicate that species in both genera consumed mainly ground-dwelling prey. Taken together, our findings support a functional interpretation of the many homoplasies shared by tarsiers and scops owls, including a retinal fovea. We suggest that the fovea might function similarly in tarsiers and scops owls by calibrating the auditory localization pathway. The integration of auditory localization and visual fixation during prey detection and acquisition might be critical at low light levels.
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Affiliation(s)
- Gillian L. Moritz
- Department of Biological Sciences, The Class of 1978 Life Sciences Center, Dartmouth CollegeHanover, NH, USA
| | - Amanda D. Melin
- Department of Anthropology, Washington University, St. LouisMO, USA
| | - Fred Tuh Yit Yu
- Research and Education Division, Zoology and EntomologyKota Kinabalu, Malaysia
| | - Henry Bernard
- Institute for Tropical Biology and Conservation, Universiti Malaysia SabahKota Kinabalu, Malaysia
| | - Perry S. Ong
- Institute of Biology, University of the Philippines DilimanQuezon City, Philippines
| | - Nathaniel J. Dominy
- Department of Biological Sciences, The Class of 1978 Life Sciences Center, Dartmouth CollegeHanover, NH, USA
- Department of Anthropology, Dartmouth CollegeHanover, NH, USA
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Vogel ER, Zulfa A, Hardus M, Wich SA, Dominy NJ, Taylor AB. Food mechanical properties, feeding ecology, and the mandibular morphology of wild orangutans. J Hum Evol 2014; 75:110-24. [PMID: 25038032 DOI: 10.1016/j.jhevol.2014.05.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 05/14/2014] [Accepted: 05/16/2014] [Indexed: 10/25/2022]
Abstract
Bornean orangutan mandibular morphology has been functionally linked to the exploitation of hard and tough foods, based on evidence that Pongo pygmaeus wurmbii spends a greater percentage of time feeding on bark, seeds and vegetation compared with Pongo abelii (Sumatran orangutans) and the assumption that these tissues are more challenging to process than fruit pulp. We measured and compared toughness (R) and Young's modulus (E) of ripe and unripe foods exploited by P. abelii and P. p. wurmbii. Additionally, we recorded and compared the percentage of time these orangutans fed on plants/plant parts of varying degrees of R and E. Compared with P. abelii, P. p. wurmbii consumed significantly tougher and more displacement limited (R/E)(0.5) fruit parts, leaves and inner bark, and spent a significantly greater percentage of time feeding on immature leaves, unripe fruit and other vegetation. Modulus did not vary as expected between species, likely because we failed to capture the high-end range of modulus values for tissues consumed by P. p. wurmbii. Notably, P. p. wurmbii spent ∼40% of its feeding time on the toughest foods consumed (between 1000 and 4000 J m(-2)). Thus, the hypothesis that mandibular robusticity in P. p. wurmbii is functionally linked to feeding on tough foods is supported and is likely related to countering relatively larger external forces and/or repetitive loads required to process the toughest tissues. The importance of elastic modulus on morphological divergence awaits future studies capturing the full range of this material property for P. p. wurmbii. Finally, phenophase and fruit availability influence orangutan species differences in food material properties and percentage of time spent feeding on various foods, emphasizing the importance of incorporating these variables in future studies of feeding ecology and craniodental morphology in extant taxa.
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Affiliation(s)
- Erin R Vogel
- Department of Anthropology and Center for Human Evolutionary Studies, Rutgers, The State University of New Jersey, 131 George Street, Ruth Adams Building Suite 306, New Brunswick, NJ 08901-1414, USA.
| | - Astri Zulfa
- Universitas Nasional Jakarta, Jakarta, Indonesia
| | - Madeleine Hardus
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Serge A Wich
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK
| | - Nathaniel J Dominy
- Department of Anthropology, 6047 Silsby Hall, Dartmouth College, Hanover, NH, USA
| | - Andrea B Taylor
- Department of Community and Family Medicine, Duke University School of Medicine, Box 104002, Durham, NC 27708, USA; Department of Evolutionary Anthropology, Duke University, 104 Biological Sciences Building, Box 90383, Durham, NC 27708-9976, USA
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Melin AD, Young HC, Mosdossy KN, Fedigan LM. Seasonality, extractive foraging and the evolution of primate sensorimotor intelligence. J Hum Evol 2014; 71:77-86. [DOI: 10.1016/j.jhevol.2014.02.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 02/18/2014] [Accepted: 02/18/2014] [Indexed: 12/18/2022]
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Irwin MT, Raharison JL, Raubenheimer D, Chapman CA, Rothman JM. Nutritional correlates of the “lean season”: Effects of seasonality and frugivory on the nutritional ecology of diademed sifakas. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2013; 153:78-91. [DOI: 10.1002/ajpa.22412] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 10/09/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Mitchell T. Irwin
- Department of Anthropology; Northern Illinois University; DeKalb IL 60115
| | - Jean-Luc Raharison
- Department of Animal Biology; University of Antananarivo; BP 906 101 Antananarivo Madagascar
| | - David Raubenheimer
- Charles Perkins Centre Faculty of Veterinary Science and School of Biological Sciences; The University of Sydney; Sydney NSW Australia
| | - Colin A. Chapman
- Department of Anthropology and McGill School of Environment; McGill University; Montreal QC Canada
- Wildlife Conservation Society; 2300 Southern Boulevard Bronx NY
| | - Jessica M. Rothman
- Department of Anthropology Hunter College; City University of New York; New York NY
- New York Consortium in Evolutionary Primatology; New York NY
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Reitsema LJ. Beyond diet reconstruction: stable isotope applications to human physiology, health, and nutrition. Am J Hum Biol 2013; 25:445-56. [PMID: 23784719 DOI: 10.1002/ajhb.22398] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 02/28/2013] [Accepted: 03/02/2013] [Indexed: 11/05/2022] Open
Abstract
Analysis of stable carbon and nitrogen isotopes from soft or mineralized tissues is a direct and widely-used technique for modeling diets. In addition to its continued role in paleodiet analysis, stable isotope analysis is now contributing to studies of physiology, disease, and nutrition in archaeological and living human populations. In humans and other animals, dietary uptake and distribution of carbon and nitrogen among mineralized and soft tissue is carried out with varying efficiency due to factors of internal biology. Human pathophysiologies may lead to pathology-influenced isotopic fractionation that can be exploited to understand not just skeletal health and diet, but physiological health and nutrition. This study reviews examples from human biology, non-human animal ecology, biomedicine, and bioarchaeology demonstrating how stable isotope analyses are usefully applied to the study of physiological adaptation and adaptability. Suggestions are made for future directions in applying stable isotope analysis to the study of nutritional stress, disease, and growth and development in living and past human populations.
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Affiliation(s)
- Laurie J Reitsema
- Department of Anthropology, University of Georgia, Athens, GA 30602, USA.
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46
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Reitsema LJ. Beyond diet reconstruction: Stable isotope applications to human physiology, health, and nutrition. Am J Hum Biol 2013. [DOI: 10.1002/aajhb.22398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Laurie J. Reitsema
- Department of Anthropology; University of Georgia; Athens; Georgia; 30602
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Ehlers Smith DA, Husson SJ, Ehlers Smith YC, Harrison ME. Feeding ecology of red langurs in Sabangau tropical peat-swamp forest, Indonesian Borneo: extreme granivory in a non-masting forest. Am J Primatol 2013; 75:848-59. [PMID: 23553789 DOI: 10.1002/ajp.22148] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Revised: 02/15/2013] [Accepted: 02/16/2013] [Indexed: 11/11/2022]
Abstract
Southeast Asia's lowland dipterocarp forests experience supra-annual "mast" fruiting and flowering events, in which the majority of trees reproduce simultaneously at irregular intervals, with extensive intervening periods of very low primate food availability. This scarcity of food results in a negative energy balance and a reliance on "fallback foods" in some primate species. By contrast, ombrogenous tropical peat-swamp forests are non-masting, and show lower variability of food availability. We sought to test the influence of fruit availability on primate diet and preference in peat-swamp habitats and assess whether it differs from masting forests. We collected behavioral-dependent feeding data on three adult females in a group of red langurs (Presbytis rubicunda: Colobinae) between January and December 2011 in Sabangau tropical peat-swamp forest, Central Kalimantan, Indonesia, as colobine monkeys are adaptated for folivory, and are therefore generally considered less reliant on temporally variable fruits than monogastric primates. We documented the highest level of granivory recorded to date in colobine monkeys: mean annual diet comprised 76.4% seeds and 7.3% other fruit parts; 7.7% young and 2.5% mature leaves; 2.8% flowers; 2.6% piths, and <1% on other minor food items. Fruit availability was fairly constant throughout the year and fruit parts were consumed at consistently higher levels than expected based on availability, confirming that fruit is preferred. Leaves and flowers were consumed consistently less than expected and thus are not preferred. There were no significant correlations between preferred food availability and consumption of potential fallback foods, suggesting that reliance on fallback foods did not occur in Sabangau during the study period. Furthermore, consumption of fruit was not significantly correlated with its availability. Our findings suggest that the relatively constant availability of fruit in this habitat affords P. rubicunda regular access to a nutritionally superior food, and that reliance on fallback foods is therefore not required.
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Affiliation(s)
- David A Ehlers Smith
- Orangutan Tropical Peatland Project, Centre for the International Cooperation in Sustainable Management of Tropical Peatlands, University of Palangka Raya, Palangka Raya, Central Kalimantan, Indonesia.
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Multi-year lactation and its consequences in Bornean orangutans (Pongo pygmaeus wurmbii). Behav Ecol Sociobiol 2013. [DOI: 10.1007/s00265-013-1504-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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49
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Sandberg PA, Loudon JE, Sponheimer M. Stable isotope analysis in primatology: a critical review. Am J Primatol 2013; 74:969-89. [PMID: 23015270 DOI: 10.1002/ajp.22053] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Stable isotope analysis has become an important tool in ecology over the last 25 years. A wealth of ecological information is stored in animal tissues in the relative abundances of the stable isotopes of several elements, particularly carbon and nitrogen, because these isotopes navigate through ecological processes in predictable ways. Stable carbon and nitrogen isotopes have been measured in most primate taxonomic groups and have yielded information about dietary content, dietary variability, and habitat use. Stable isotopes have recently proven useful for addressing more fine-grained questions about niche dynamics and anthropogenic effects on feeding ecology. Here, we discuss stable carbon and nitrogen isotope systematics and critically review the published stable carbon and nitrogen isotope data for modern primates with a focus on the problems and prospects for future stable isotope applications in primatology.
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Affiliation(s)
- Paul A Sandberg
- Department of Anthropology, University of Colorado at Boulder, 80309-0233, USA.
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50
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Hanya G, Chapman CA. Linking feeding ecology and population abundance: a review of food resource limitation on primates. Ecol Res 2012. [DOI: 10.1007/s11284-012-1012-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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