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Li HB, Sun J, Li LH, Zhou Y, Fang XL, Li BY, Guo LJ, Geng Y, Wang CP, Huang ZP, Garber PA, Yang Y, Cui LW, Xiao W. Effects of provisioning on the activity budget and foraging strategies of black-and-white snub-nosed monkeys (Rhinopithecus bieti) in the Baima Snow Mountain Nature Reserve, Yunnan, China. Am J Primatol 2023; 85:e23548. [PMID: 37661600 DOI: 10.1002/ajp.23548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 07/30/2023] [Accepted: 08/19/2023] [Indexed: 09/05/2023]
Abstract
Provisioning can significantly affect the ranging patterns, foraging strategies, and time budget of wild primates. In this study, we document for the first time, the effects of provisioning on the activity budget and foraging effort in an Asian colobine. Over 3-years, we used an instantaneous scanning method at 10-min intervals to collect data on the activity budget of a semiprovisioned breeding band (SPB) of black-and-white snub-nosed monkeys (Rhinopithecus bieti) (42-70 individuals) at Xiangguqing (Tacheng), Yunnan, China. We then compared the effects of provisioning in our study band with published data on a sympatric wild nonprovisioned breeding band (NPB) of R. bieti (ca. 360 monkeys) at the same field site. The SPB spent 25.6% of their daytime feeding, 17.1% traveling, 46.9% resting, and 10.3% socializing. In comparison, the NPB devoted more time to feeding (34.9%) and socializing (14.1%), less time to resting (31.3%), and was characterized by a greater foraging effort (1.74 versus 0.96, foraging effort = (feeding + traveling)/resting; see Methods). There was no difference between bands in the proportion of their activity budget devoted to traveling (15.7% vs. 17.1%). In addition, the SPB exhibited a more consistent activity budget and foraging effort across all seasons of the year compared to the NPB. These findings suggest that the distribution, availability, and productivity of naturally occurring feeding sites is a major determinant of the behavioral strategies and activity budget of R. bieti. Finally, a comparison of our results with data on six nonprovisioned R. bieti bands indicates that caution must be raised in meta-analyses or intraspecific comparisons of primate behavioral ecology that contain data generated from both provisioned and nonprovisioned groups.
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Affiliation(s)
- Hong-Bo Li
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan, China
- Yunling Black-and-White Snub-Nosed Monkey Observation and Research Station of Yunnan Province, Dali University, Dali, Yunnan, China
- International Center for Biodiversity and Primate Conservation, Dali University, Dali, Yunnan, China
| | - Jing Sun
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
| | - Lun-Hong Li
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
| | - Ying Zhou
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
| | - Xue-Lan Fang
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
| | - Bo-Yan Li
- Institute of Resource Conservation, Lashihai Plateau Wetland Provincial Nature Reserve Bureau, Lijiang, Yunnan, China
| | - Long-Jie Guo
- Nujiang Administration Bureau, Gaoligongshan National Nature Reserve, Liuku, Yunnan, China
| | - Ying Geng
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
| | - Chun-Ping Wang
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
| | - Zhi-Pang Huang
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan, China
- Yunling Black-and-White Snub-Nosed Monkey Observation and Research Station of Yunnan Province, Dali University, Dali, Yunnan, China
- Institute of International Rivers and Eco-security, Yunnan University, Kunming, Yunnan, China
| | - Paul A Garber
- International Center for Biodiversity and Primate Conservation, Dali University, Dali, Yunnan, China
- Department of Anthropology and Program in Ecology, Evolution, and Conservation Biology, University of Illinois, Urbana, Illinois, USA
| | - Yin Yang
- International Center for Biodiversity and Primate Conservation, Dali University, Dali, Yunnan, China
- Institute of International Rivers and Eco-security, Yunnan University, Kunming, Yunnan, China
| | - Liang-Wei Cui
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Faculty of Biodiversity Conservation, Southwest Forestry University, Kunming, Yunnan, China
- International Center for Biodiversity and Primate Conservation, Dali University, Dali, Yunnan, China
| | - Wen Xiao
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan, China
- Yunling Black-and-White Snub-Nosed Monkey Observation and Research Station of Yunnan Province, Dali University, Dali, Yunnan, China
- International Center for Biodiversity and Primate Conservation, Dali University, Dali, Yunnan, China
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Lew-Levy S, Reckin R, Kissler SM, Pretelli I, Boyette AH, Crittenden AN, Hagen RV, Haas R, Kramer KL, Koster J, O’Brien MJ, Sonoda K, Surovell TA, Stieglitz J, Tucker B, Lavi N, Ellis-Davies K, Davis HE. Socioecology shapes child and adolescent time allocation in twelve hunter-gatherer and mixed-subsistence forager societies. Sci Rep 2022; 12:8054. [PMID: 35577896 PMCID: PMC9110336 DOI: 10.1038/s41598-022-12217-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 05/06/2022] [Indexed: 11/09/2022] Open
Abstract
A key issue distinguishing prominent evolutionary models of human life history is whether prolonged childhood evolved to facilitate learning in a skill- and strength-intensive foraging niche requiring high levels of cooperation. Considering the diversity of environments humans inhabit, children’s activities should also reflect local social and ecological opportunities and constraints. To better understand our species’ developmental plasticity, the present paper compiled a time allocation dataset for children and adolescents from twelve hunter-gatherer and mixed-subsistence forager societies (n = 690; 3–18 years; 52% girls). We investigated how environmental factors, local ecological risk, and men and women’s relative energetic contributions were associated with cross-cultural variation in child and adolescent time allocation to childcare, food production, domestic work, and play. Annual precipitation, annual mean temperature, and net primary productivity were not strongly associated with child and adolescent activity budgets. Increased risk of encounters with dangerous animals and dehydration negatively predicted time allocation to childcare and domestic work, but not food production. Gender differences in child and adolescent activity budgets were stronger in societies where men made greater direct contributions to food production than women. We interpret these findings as suggesting that children and their caregivers adjust their activities to facilitate the early acquisition of knowledge which helps children safely cooperate with adults in a range of social and ecological environments. These findings compel us to consider how childhood may have also evolved to facilitate flexible participation in productive activities in early life.
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Brereton JE, Tuke J, Fernandez EJ. A simulated comparison of behavioural observation sampling methods. Sci Rep 2022; 12:3096. [PMID: 35197514 PMCID: PMC8866427 DOI: 10.1038/s41598-022-07169-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 01/21/2022] [Indexed: 12/30/2022] Open
Abstract
Behavioural research requires the use of sampling methods to document the occurrence of responses observed. Sampling/recording methods include ad libitum, continuous, pinpoint (instantaneous), and one-zero (interval) sampling. Researchers have questioned the utility of each sampling method under different contexts. Our study compared computerized simulations of both pinpoint and one-zero sampling to continuous recordings. Two separate computer simulations were generated, one for response frequency and one for response duration, with three different response frequencies (high, medium, or low) and response durations (short, medium, and long) in each simulation, respectively. Similarly, three different observation intervals (5, 50, and 500 s) were used to record responses as both pinpoint and one-zero sampling methods in the simulations. Under both simulations, pinpoint sampling outperformed one-zero sampling, with pinpoint sampling producing less statistical bias in error rates under all frequencies, durations, and observation intervals. As observation intervals increased, both mean error rates and variability in error rates increased for one-zero sampling, while only variability in error rate increased for pinpoint sampling. The results suggest that pinpoint sampling techniques are effective for measuring both frequency (event) and duration (state) behaviours, and that pinpoint sampling is a less statistically biased behavioural observation method than one-zero sampling.
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Affiliation(s)
- James Edward Brereton
- University Centre Sparsholt, Sparsholt College, Westley Lane, Sparsholt, Winchester, SO21 2NF, Hampshire, UK.
| | - Jonathan Tuke
- School of Mathematical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Eduardo J Fernandez
- School of Animal and Veterinary Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
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DieTryin: An R package for data collection, automated data entry, and post-processing of network-structured economic games, social networks, and other roster-based dyadic data. Behav Res Methods 2021; 54:611-631. [PMID: 34341963 PMCID: PMC9046375 DOI: 10.3758/s13428-021-01606-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2021] [Indexed: 12/27/2022]
Abstract
Researchers studying social networks and inter-personal sentiments in bounded or small-scale communities face a trade-off between the use of roster-based and free-recall/name-generator-based survey tools. Roster-based methods scale poorly with sample size, and can more easily lead to respondent fatigue; however, they generally yield higher quality data that are less susceptible to recall bias and that require less post-processing. Name-generator-based methods, in contrast, scale well with sample size and are less likely to lead to respondent fatigue. However, they may be more sensitive to recall bias, and they entail a large amount of highly error-prone post-processing after data collection in order to link elicited names to unique identifiers. Here, we introduce an R package, DieTryin, that allows for roster-based dyadic data to be collected and entered as rapidly as name-generator-based data; DieTryin can be used to run network-structured economic games, as well as collect and process standard social network data and round-robin Likert-scale peer ratings. DieTryin automates photograph standardization, survey tool compilation, and data entry. We present a complete methodological workflow using DieTryin to teach end-users its full functionality.
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Matthews JK, Ridley A, Kaplin BA, Grueter CC. A comparison of fecal sampling and direct feeding observations for quantifying the diet of a frugivorous primate. Curr Zool 2020; 66:333-343. [PMID: 32617082 PMCID: PMC7319449 DOI: 10.1093/cz/zoz058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/21/2019] [Indexed: 11/12/2022] Open
Abstract
Both observational and indirect evidence are widely used to determine the diets of wild animals. Direct observations are often assumed to provide the most comprehensive reflection of diet, but many wild animals are logistically challenging to observe. Despite the regular use of observational and indirect methods for inferring diet in wild animals, they have rarely been compared in detail for the same study population. Over 12 months this study assessed the congruence of methods in estimating the diet of a montane community of eastern chimpanzees Pan troglodytes schweinfurthii in Nyungwe National Park, Rwanda using observational scan samples and macroscopic fecal inspection. The assessment of the number of food species consumed each month was comparable between methods, but the estimation of the composition of items in the diet differed significantly. Most notably, the fecal samples significantly underestimated the consumption of flowers, and certain fruit species, which based on direct behavioral observations were seasonally consumed at very high rates. Conversely, direct observations underestimated the consumption of leaves and pith in comparison to results present in the fecal samples. These results suggest that combining methods where possible is most useful for accurate monitoring of dietary trends, particularly for species that experience significant seasonal shifts in their diet.
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Affiliation(s)
- Jaya K Matthews
- School of Human Sciences, The University of Western Australia, Crawley, WA 6009, Australia.,UWA Africa Research & Engagement Centre, The University of Western Australia, Crawley, WA 6009, Australia
| | - Amanda Ridley
- Centre for Evolutionary Biology, School of Biological Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | - Beth A Kaplin
- Centre of Excellence in Biodiversity and Natural Resource Management, University of Rwanda, Huye, Rwanda.,School for the Environment, University of Massachusetts, Boston, MA 02125-3393, USA
| | - Cyril C Grueter
- School of Human Sciences, The University of Western Australia, Crawley, WA 6009, Australia.,UWA Africa Research & Engagement Centre, The University of Western Australia, Crawley, WA 6009, Australia.,Centre for Evolutionary Biology, School of Biological Sciences, The University of Western Australia, Crawley, WA 6009, Australia
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Goswami S, Tyagi PC, Malik PK, Pandit SJ, Kadivar RF, Fitzpatrick M, Mondol S. Effects of personality and rearing-history on the welfare of captive Asiatic lions ( Panthera leo persica). PeerJ 2020; 8:e8425. [PMID: 32071803 PMCID: PMC7007979 DOI: 10.7717/peerj.8425] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 12/17/2019] [Indexed: 01/16/2023] Open
Abstract
Background The long-term success of ex-situ conservation programmes depends on species-appropriate husbandry and enrichment practices complemented by an accurate welfare assessment protocol. Zoos and conservation breeding programmes should employ a bottom-up approach to account for intraspecific variations in measures of animal welfare. We studied 35 (14:21) captive Asiatic lions in Sakkarbaug Zoological Garden, Junagadh, India to understand the implications of individual variations on welfare measures. We categorized the subjects based on personality traits (bold or shy), rearing history (wild-rescued or captive-raised), sex, and social-grouping. We explored the association of these categorical variables on welfare indices such as behavioural diversity, latency to approach novel objects, enclosure usage and aberrant repetitive behaviours. Further, we assessed the inter-relationships between different behavioural measures of welfare. Results Our results show that intraspecific variations based on rearing-history and personality traits are significantly associated with the welfare states of captive Asiatic lions. Asiatic lions with bold personality traits (M = 0.50, SD = 0.12, N = 21) and those raised in captivity (M = 0.47, SD = 0.12, N = 16) used enclosure space more homogenously compared to shy (M = 0.71, SD = 0.15, N = 14) and wild-rescued (M = 0.67, SD = 0.15, N = 19) animals. Behaviour diversity was significantly higher in captive-raised (M = 1.26, SD = 0.3, N = 16) and bold (M = 1.23, SD = 0.26, N = 21) subjects compared to wild-rescued (M = 0.83, SD = 0.35, N = 19) and shy (M = 0.73, SD = 0.34, N = 14) individuals. Aberrant repetitive behaviours (stereotypy) were significantly lower in bold (M = 7.01, SD = 4, N = 21) and captive-raised (M = 7.74, SD = 5.3) individuals compared to wild-rescued (M = 13.12, SD = 6.25, N = 19) and shy (M = 16.13, SD = 5.4, N = 16) lions. Sex and social-grouping of subjects did not show significant associations with behavioural welfare indices. Interestingly, behaviour diversity was reliably predicted by the enclosure usage patterns and aberrant repetitive behaviours displayed by subjects. Discussion Our findings underline the importance of individual-centric, behaviour-based, and multi-dimensional welfare assessment approaches in ex-situ conservation programmes. The results suggest that behavioural welfare indices complemented with individual variations can explain inter-individual differences in behavioural welfare measure outcomes of Asiatic lions. These findings also provide zoo managers with a non-invasive tool to reliably assess and improve husbandry practices for Asiatic lions. Understanding the unique welfare requirement of individuals in captivity will be crucial for the survival of the species.
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Affiliation(s)
- Sitendu Goswami
- Wildlife Institute of India, Chandrabani, Uttarakhand, India
| | - Praveen C Tyagi
- Wildlife Institute of India, Chandrabani, Uttarakhand, India
| | - Pradeep K Malik
- Wildlife Institute of India, Chandrabani, Uttarakhand, India
| | | | | | | | - Samrat Mondol
- Wildlife Institute of India, Chandrabani, Uttarakhand, India
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Wimberger K, Nowak K, Hill RA. Reliance on Exotic Plants by Two Groups of Threatened Samango Monkeys, Cercopithecus albogularis labiatus, at Their Southern Range Limit. INT J PRIMATOL 2017. [DOI: 10.1007/s10764-016-9949-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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