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1

Tarara, Erna Burger. "Infanticide in a chacma baboon troop." Primates 28, no. 2 (April 1987): 267–70. http://dx.doi.org/10.1007/bf02382576.

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2

Fischer, Julia, Kurt Hammerschmidt, Dorothy L. Cheney, and Robert M. Seyfarth. "Acoustic Features of Female Chacma Baboon Barks." Ethology 107, no. 1 (July 18, 2008): 33–54. http://dx.doi.org/10.1111/j.1439-0310.2001.00630.x.

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3

Fischer, Julia, Kurt Hammerschmidt, Dorothy L. Cheney, and Robert M. Seyfarth. "Acoustic Features of Female Chacma Baboon Barks." Ethology 107, no. 1 (January 2001): 33–54. http://dx.doi.org/10.1046/j.1439-0310.2001.00630.x.

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4

Smit, J. A., J. H. Stark, and J. A. Myburgh. "Improved technique for the mixed lymphocyte response in the Chacma baboon." Laboratory Animals 22, no. 3 (July 1, 1988): 212–16. http://dx.doi.org/10.1258/002367788780746322.

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Lymphocyte responsiveness in cells collected from baboons ( Papio ursinus orientalis) has consistently been 1/10 of that obtained using human cells. Animals that vigorously rejected organ allografts demonstrated that this lack of responsiveness was not due to genetic identity. This paper defines the kinetics of the baboon mixed lymphocyte response (MLR) and suggests several modifications to improve the sensitivity of the technique. Optimal response was obtained using nylon wool purified T-cell responders, 20% fresh autologous plasma to supplement culture medium, an incubation period of 6 days and exposure to 3H-thymidine (2 Ci/mmol) for 24 h prior to harvesting. These modifications enhanced the MLR response from a stimulation index±standard error of 2·5±0·3 ( n=79) to 25·2±5·4 ( n=38).
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5

Kieser, Julius A., and H. T. Groeneveld. "Static Intraspecific Maxillofacial Allometry in the Chacma Baboon." Folia Primatologica 48, no. 3-4 (1987): 151–63. http://dx.doi.org/10.1159/000156292.

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6

STARK, JENNIFER H., JACOBUS A. SMIT, FRANCISCA A. NEETHLING, PETER J. NORTMAN, and JOHANNES A. MYBURGH. "IMMUNOLOGICAL COMPATIBILITY BETWEEN THE CHACMA BABOON AND MAN." Transplantation 52, no. 6 (December 1991): 1072–78. http://dx.doi.org/10.1097/00007890-199112000-00025.

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7

Booth, K. K., F. M. Baloyi, and O. M. Lukhele. "The brachial plexus in the chacma baboon (Papio ursinus)." Journal of Medical Primatology 26, no. 4 (August 1997): 196–203. http://dx.doi.org/10.1111/j.1600-0684.1997.tb00052.x.

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8

COOPER, D. K. C. "THE CHACMA BABOON AS AN ORGAN DONOR FOR MAN." Transplantation 53, no. 6 (June 1992): 1380. http://dx.doi.org/10.1097/00007890-199206000-00045.

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9

Mennen, Ulrich. "END-TO-SIDE NERVE SUTURE IN THE PRIMATE (CHACMA BABOON)." Hand Surgery 03, no. 01 (June 1998): 1–6. http://dx.doi.org/10.1142/s0218810498000039.

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It has been shown that the tropic factors at the end of a distal nerve segment attracts growing axons. Subsequently, it was shown that this attraction enables intact axons to sprout into a recipient end-to-side anastomosed nerve in rats. We have demonstrated that this ability of a donor nerve also occurs in the non-human primate as well as in the human. Three Chacma baboons (6 end-to-side anastomoses at the wrist level) consistently confirmed collateral sprouting on histology and recovery of function (motor and sensory) on electro-conduction tests. Preliminary results in 21 human patients (21 end-to-side anastomoses in a variety of procedures) demonstrated clinically and by electro-conduction tests that sensory and motor recovery occurs satisfactorily.
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10

BIELERT, C. "Testosterone propionate treatment of an XY gonadal dysgenetic chacma baboon." Hormones and Behavior 19, no. 4 (December 1985): 372–85. http://dx.doi.org/10.1016/0018-506x(85)90035-2.

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11

Clarke, Parry M. R., L. Barrett, and S. P. Henzi. "What role do olfactory cues play in chacma baboon mating?" American Journal of Primatology 71, no. 6 (June 2009): 493–502. http://dx.doi.org/10.1002/ajp.20678.

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12

Anderson, Connie M. "The spread of exclusive mating in a chacma baboon population." American Journal of Physical Anthropology 78, no. 3 (March 1989): 355–60. http://dx.doi.org/10.1002/ajpa.1330780304.

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13

Sithaldeen, R., J. M. Bishop, and R. R. Ackermann. "Mitochondrial DNA analysis reveals Plio-Pleistocene diversification within the chacma baboon." Molecular Phylogenetics and Evolution 53, no. 3 (December 2009): 1042–48. http://dx.doi.org/10.1016/j.ympev.2009.07.038.

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14

Grine, F. E., M. A. Spencer, B. Demes, H. F. Smith, D. S. Strait, and D. A. Constant. "Molar enamel thickness in the Chacma Baboon,Papio ursinus (kerr 1792)." American Journal of Physical Anthropology 128, no. 4 (2005): 812–22. http://dx.doi.org/10.1002/ajpa.20076.

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15

Clarke, P. M. R., J. E. B. Halliday, L. Barrett, and S. P. Henzi. "Chacma baboon mating markets: competitor suppression mediates the potential for intersexual exchange." Behavioral Ecology 21, no. 6 (2010): 1211–20. http://dx.doi.org/10.1093/beheco/arq125.

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16

Novitzky, D., W. N. Wicomb, A. G. Rose, D. K. C. Cooper, and B. Reichart. "Pathophysiology of Pulmonary Edema Following Experimental Brain Death in the Chacma Baboon." Annals of Thoracic Surgery 43, no. 3 (March 1987): 288–94. http://dx.doi.org/10.1016/s0003-4975(10)60615-7.

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17

Pechey, Laura Charlotte. "Problem Animals, Indigeneity and Land: The Chacma Baboon in South African Writing." Current Writing 18, no. 1 (January 2006): 42–60. http://dx.doi.org/10.1080/1013929x.2006.9678232.

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18

Henzi, S. Peter, Russell Hill, Louise Barrett, John Lycett, and Tony Weingrill. "Male consortship behaviour in chacma baboons: the role of demographic factors and female conceptive probabilities." Behaviour 140, no. 3 (2003): 405–27. http://dx.doi.org/10.1163/156853903321826701.

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AbstractThere is evidence for a general relationship between male dominance rank and mating success in primates, although the strength of this relationship differs among species. In chacma baboons (Papio hamadryas ursinus) male rank is found to be of more importance than in the other savannah baboon subspecies. However, even though the priority-of-access model explains the proportion of time spent in consortship for males of different rank in chacmas, highest-ranking males usually consort less often than expected. In this study, conducted in the Drakensberg Mountains of Natal and at De Hoop in the Western Cape, we investigated why dominant males in four study troops consorted only between 50% and 75% of days that they were expected to consort according to the priority-of-access model. Consortship success of highest-ranking males was primarily dependant on the number of available oestrous females in a troop. This was likely due to costs involved in consorting which limit the amount of days that a male could spend in consortship. Females pass through several cycles before conceiving and highest-ranking males were observed to consort more often on the conceptive cycle compared to the nearest nonconceptive cycle, but this was only true for males that were already resident for several months. Recently immigrated males that became highest-ranking often consorted during nonconceptive female cycles, while older, lower-ranking males consorted during the conceptive cycles. We propose that males with longer residency have more information about reproductive state of females and thus higher reproductive success than recently immigrated males.
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19

Johnson, Caley A., David Raubenheimer, Jessica M. Rothman, David Clarke, and Larissa Swedell. "30 Days in the Life: Daily Nutrient Balancing in a Wild Chacma Baboon." PLoS ONE 8, no. 7 (July 24, 2013): e70383. http://dx.doi.org/10.1371/journal.pone.0070383.

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20

HALL, K. R. L. "NUMERICAL DATA, MAINTENANCE ACTIVITIES AND LOCOMOTION OF THE WILD CHACMA BABOON, PAPIO URSINUS." Proceedings of the Zoological Society of London 139, no. 2 (August 20, 2009): 181–220. http://dx.doi.org/10.1111/j.1469-7998.1962.tb01827.x.

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21

Bulger, John, and William J. Hamilton. "Inbreeding and reproductive success in a natural chacma baboon, Papio cynocephalus ursinus, population." Animal Behaviour 36, no. 2 (April 1988): 574–78. http://dx.doi.org/10.1016/s0003-3472(88)80028-9.

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22

Elston, Guy N., Ruth Benavides-Piccione, Alejandra Elston, Javier DeFelipe, and Paul Manger. "Pyramidal cell specialization in the occipitotemporal cortex of the Chacma baboon (Papio ursinus)." Experimental Brain Research 167, no. 4 (September 23, 2005): 496–503. http://dx.doi.org/10.1007/s00221-005-0057-3.

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23

Gustison, Morgan L., and Thore J. Bergman. "Divergent acoustic properties of gelada and baboon vocalizations and their implications for the evolution of human speech." Journal of Language Evolution 2, no. 1 (January 1, 2017): 20–36. http://dx.doi.org/10.1093/jole/lzx015.

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Abstract Human speech has many complex spectral and temporal features traditionally thought to be absent in the vocalizations of other primates. Recent explorations of the vocal capabilities of non-human primates are challenging this view. Here, we continue this trend by exploring the spectro-temporal properties of gelada (Theropithecus gelada) vocalizations. First, we made cross-species comparisons of geladas, chacma baboons, and human vowel space area. We found that adult male and female gelada exhaled grunts–a call type shared with baboons—have formant profiles that overlap more with human vowel space than do baboon grunts. These gelada grunts also contained more modulation of fundamental and formant frequencies than did baboon grunts. Second, we compared formant profiles and modulation of exhaled grunts to the derived call types (those not shared with baboons) produced by gelada males. These derived calls contained divergent formant profiles, and a subset of them, notably wobbles and vocalized yawns, were more modulated than grunts. Third, we investigated the rhythmic patterns of wobbles, a call type shown previously to contain cycles that match the 3–8 Hz tempo of speech. We use a larger dataset to show that the wobble rhythm overlaps more with speech rhythm than previously thought. We also found that variation in cycle duration depends on the production modality; specifically, exhaled wobbles were produced at a slower tempo than inhaled wobbles. Moreover, the variability in cycle duration within wobbles aligns with a linguistic property known as ‘Menzerath’s law’ in that there was a negative association between cycle duration and wobble size (i.e. the number of cycles). Taken together, our results add to growing evidence that non-human primates are anatomically capable of producing modulated sounds. Our results also support and expand on current hypotheses of speech evolution, including the ‘neural hypothesis’ and the ‘bimodal speech rhythm hypothesis’.
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24

Janse van Rensburg, Walter J., Philip N. Badenhorst, and Jan P. Roodt. "The Cape Chacma baboon is not suitable for evaluating human targeted anti-GPVI agents." Platelets 26, no. 6 (August 28, 2014): 552–57. http://dx.doi.org/10.3109/09537104.2014.952224.

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25

Lownie, J. F., P. E. Cleaton-Jones, L. P. Fatti, M. A. Lownie, M. Forbes, and M. Bird. "Vascularity of the dental pulp after segmental osteotomy in the chacma baboon (Papio ursinus)." British Journal of Oral and Maxillofacial Surgery 36, no. 4 (August 1998): 285–89. http://dx.doi.org/10.1016/s0266-4356(98)90712-4.

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26

Janse van Rensburg, Walter J. "Molecular suitability of the chacma baboon in human‐targeted Von Willebrand factor directed studies." Journal of Medical Primatology 48, no. 3 (March 20, 2019): 171–75. http://dx.doi.org/10.1111/jmp.12407.

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27

Tew, Eleanor, Marietjie Landman, and Graham I. H. Kerley. "The Contribution of the Chacma Baboon to Seed Dispersal in the Eastern Karoo, South Africa." African Journal of Wildlife Research 48, no. 2 (May 14, 2018): 023002. http://dx.doi.org/10.3957/056.048.023002.

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28

HALL, K. R. L. "THE SEXUAL, AGONISTIC AND DERIVED SOCIAL BEHAVIOUR PATTERNS OF THE WILD CHACMA BABOON, PAPIO URSINUS." Proceedings of the Zoological Society of London 139, no. 2 (August 20, 2009): 283–327. http://dx.doi.org/10.1111/j.1469-7998.1962.tb01831.x.

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29

Slater, Kerry, Alan Barrett, and Leslie R. Brown. "Home range utilization by chacma baboon (Papio ursinus) troops on Suikerbosrand Nature Reserve, South Africa." PLOS ONE 13, no. 3 (March 29, 2018): e0194717. http://dx.doi.org/10.1371/journal.pone.0194717.

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30

Novitzky, D., W. N. Wicomb, D. K. C. Cooper, A. G. Rose, and B. Reichart. "Prevention of Myocardial Injury During Brain Death by Total Cardiac Sympathectomy in the Chacma Baboon." Annals of Thoracic Surgery 41, no. 5 (May 1986): 520–24. http://dx.doi.org/10.1016/s0003-4975(10)63032-9.

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31

Stone, Olivia M. L., Shawn W. Laffan, Darren Curnoe, Ian Rushworth, and Andy I. R. Herries. "Distribution and population estimate for the chacma baboon (Papio ursinus) in KwaZulu-Natal, South Africa." Primates 53, no. 4 (March 8, 2012): 337–44. http://dx.doi.org/10.1007/s10329-012-0303-9.

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32

Wolfe-Coote, Sonia A., and D. F. du Toit. "Morphology and endocrine production of cells in the islets of langerhans of the Chacma baboon." Anatomical Record 218, no. 1 (May 1987): 56–65. http://dx.doi.org/10.1002/ar.1092180110.

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33

Bielert, C., and L. Girolami. "Experimental assessments of behavioral and anatomical components of female chacma baboon (Papio ursinus) sexual attractiveness." Psychoneuroendocrinology 11, no. 1 (January 1986): 75–90. http://dx.doi.org/10.1016/0306-4530(86)90034-x.

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34

Stone, Olivia M. L., Shawn W. Laffan, Darren Curnoe, and Andy I. R. Herries. "The Spatial Distribution of Chacma Baboon (Papio ursinus) Habitat Based on an Environmental Envelope Model." International Journal of Primatology 34, no. 2 (March 20, 2013): 407–22. http://dx.doi.org/10.1007/s10764-013-9669-9.

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35

Mennen, Ulrich. "END-TO-SIDE NERVE SUTURE IN THE HUMAN PATIENT." Hand Surgery 03, no. 01 (June 1998): 7–15. http://dx.doi.org/10.1142/s0218810498000040.

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End-to-side nerve suture (also called terminolateral neurorrhaphy) has been extensively examined clinically, histologically, electro-physiologically and electron microscopically in the rat and non-human primat (Chacma baboon: Papua ursinus). We have demonstrated good to excellent sensory in motor function results in the human patient for a variety of nerve injuries. The simplicity of the procedure, the relative wide tolerance of the operative technique and the virtual consistent early recovery of both sensory and motor function, makes this method ideal for nerve injury surgery. Nerve grafts to a large extent are obviated and brachial plexus surgery gets a whole new meaning. The first 22 patients are presented.
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36

Germishuizen, Ilaria, Kabir Peerbhay, and Riyad Ismail. "Modelling the susceptibility of pine stands to bark stripping by Chacma baboons (Papio ursinus) in the Mpumalanga Province of South Africa." Wildlife Research 44, no. 4 (2017): 298. http://dx.doi.org/10.1071/wr16170.

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Context Commercial pine (Pinus spp.) plantations in southern Africa have been subjected to bark stripping by Chacma baboons (Papio ursinus) for many decades, resulting in severe financial losses to producers. The drivers of this behaviour are not fully understood and have been partially attributed to resource distribution and availability. Aims The study sought to develop a spatially explicit ecological-risk model for bark stripping by baboons to understand the environmental factors associated with the presence of damage in the pine plantations of the Mpumalanga province of South Africa. Methods The model was developed in Random Forests, a machine learning algorithm. Baboon damage information was collected through systematic surveys of forest plantations conducted annually. Environmental predictors included aspects of climate, topography and compartment-specific attributes. The model was applied to the pine plantations of the study area for risk evaluation. Key results The Random Forests classifier was successful in predicting damage occurrence (F1 score=0.84, area under curve (AUC)=0.96). Variable predictors that contributed most to the model classification accuracy were related to pine-stand characteristics, with the age of trees being the most important predictor, followed by species, site index and altitude. Variables pertaining to the environment surrounding a pine stand did not contribute substantially to the model performance. Key conclusions (1) The study suggests that bark stripping is influenced by compartment attributes; (2) predicted risk of bark stripping is higher in stands above the age of 5 years planted on high-productivity forestry sites, where site index (SI) is above 25; (3) presence of damage is not related to the proximity to natural areas; (4) further studies are required to investigate ecological and behavioural patterns associated with bark stripping. Implications The model provides a tool for understanding the potential extent of the risk of bark stripping by baboons within this region and it can be applied to other forestry areas in South Africa for risk evaluation. It contributes towards the assessment of natural hazards potentially affecting pine plantations and supports the development of risk-management strategies by forest managers. The model highlights opportunities for cultural interventions that may be tested for damage control.
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37

Wolfe-Coote, Sonia A., and D. F. Du Toit. "Distribution of cell types of the islets of langerhans throughout the pancreas of the Chacma baboon." Anatomical Record 217, no. 2 (February 1987): 172–77. http://dx.doi.org/10.1002/ar.1092170209.

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38

Bielert, Craig, Letizia Girolami, and Connie Anderson. "Male chacma baboon (Papio ursinus) sexual arousal: Studies with adolescent and adult females as visual stimuli." Developmental Psychobiology 19, no. 4 (July 1986): 369–83. http://dx.doi.org/10.1002/dev.420190409.

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39

Bulger, John, and William J. Hamilton. "Rank and density correlates of inclusive fitness measures in a natural chacma baboon (Papio ursinus) troop." International Journal of Primatology 8, no. 6 (December 1987): 635–50. http://dx.doi.org/10.1007/bf02735781.

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40

Kotze, Marthinus, Kürt-W. Bütow, Steve A. Olorunju, and Harry F. Kotze. "Ozone Treatment of Alveolar Bone in the Cape Chacma Baboon Does Not Enhance Healing Following Trauma." Journal of Maxillofacial and Oral Surgery 13, no. 2 (March 16, 2013): 140–47. http://dx.doi.org/10.1007/s12663-013-0471-1.

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41

Dezeure, Jules, Julie Dagorrette, Alice Baniel, Alecia J. Carter, Guy Cowlishaw, Harry H. Marshall, Claudia Martina, Cassandra L. Raby, and Elise Huchard. "Developmental transitions in body color in chacma baboon infants: Implications to estimate age and developmental pace." American Journal of Physical Anthropology 174, no. 1 (August 26, 2020): 89–102. http://dx.doi.org/10.1002/ajpa.24118.

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42

Cantalupo, Paul, Adrienne Doering, Christopher S. Sullivan, Achintya Pal, K. W. C. Peden, Andrew M. Lewis, and James M. Pipas. "Complete Nucleotide Sequence of Polyomavirus SA12." Journal of Virology 79, no. 20 (October 15, 2005): 13094–104. http://dx.doi.org/10.1128/jvi.79.20.13094-13104.2005.

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ABSTRACT The Polyomaviridae have small icosahedral virions that contain a genome of approximately 5,000 bp of circular double-stranded DNA. Polyomaviruses infect hosts ranging from humans to birds, and some members of this family induce tumors in test animals or in their natural hosts. We report the complete nucleotide sequence of simian agent 12 (SA12), whose natural host is thought to be Papio ursinus, the chacma baboon. The 5,230-bp genome has a genetic organization typical of polyomaviruses. Sequences encoding large T antigen, small t antigen, agnoprotein, and the viral capsid proteins VP1, VP2, and VP3 are present in the expected locations. We show that, like its close relative simian virus 40 (SV40), SA12 expresses microRNAs that are encoded by the late DNA strand overlapping the 3′ end of large T antigen coding sequences. Based on sequence comparisons, SA12 is most closely related to BK virus (BKV), a human polyomavirus. We have developed a real-time PCR test that distinguishes SA12 from BKV and the other closely related polyomaviruses JC virus and SV40. The close relationship between SA12 and BKV raises the possibility that these viruses circulate between human and baboon hosts.
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43

Grabow, W. O. K., T. E. Neubrech, C. S. Holtzhausen, and J. Jofre. "Bacteroides fragilis and Escherichia coli bacteriophages: excretion by humans and animals." Water Science and Technology 31, no. 5-6 (March 1, 1995): 223–30. http://dx.doi.org/10.2166/wst.1995.0609.

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The faecal excretion of somatic and male-specific coliphages, and phages of Bacteroides fragilis strain HSP40, by humans and a variety of animals has been investigated as part of research on indicator features of phages. Ninety human stool specimens were obtained from black and white male and female individuals varying in age from 6 months to 85 years. Sixty-five faecal samples from domestic animals including cattle, sheep, pigs, horses, dogs, cats, geese and rabbits, were obtained from various agricultural and domestic sources. The National Zoological Gardens in Pretoria kindly supplied 38 stool specimens from higher primates (gorilla, orangoutang and chimpanzee). Thirty-seven stool specimens from chacma baboons and vervet monkeys were obtained from the Zoological Gardens and our animal research centre. Five specimens of seabird droppings were obtained from the west coast of South Africa. The qualitative presence of phages was determined by an enrichment procedure followed by a plaque spot test. Double agar layer plaque assays were used to titrate phages. Bacteroides fragilis phages were detected in 13% of human stool samples, but not in any animal faeces. Somatic coliphages were detected in 54% of human, 56% of domestic animal, 57% of monkey and baboon, 53% of higher primate, and 60% of seabird specimens. Male-specific coliphages were detected in 26% of human, 90% of domestic animal, 76% of monkey and baboon, 63% of higher primate, and 20% of seagull faecal samples. Titres of phages in selected samples varied from undetectable by direct plaque assay to 4.5 × 106 somatic and 3.2 × 104 male-specific coliphages per gram of seabird droppings. Faecally polluted environments may, therefore, contain substantial numbers of somatic and male-specific coliphages of human and animal origin. The results confirm earlier observations that B fragilis phages can be used to distinguish between faecal pollution of human and animal origin.
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44

Cowlishaw, Guy. "Behavioural Patterns in Baboon Group Encounters: the Role of Resource Competition and Male Reproductive Strategies." Behaviour 132, no. 1-2 (1995): 75–86. http://dx.doi.org/10.1163/156853995x00298.

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AbstractFemale Between Group Contest BGC competition for limited and monopolizable ecological resources such as food and water is the conventional explanation for behaviour during primate intergroup encounters. It is further advocated as an explanation for the evolution of social groups. This paper tests this explanation (H1) against two competing hypotheses. These are that patterns of intergroup interaction represent (H2) BGC mediated through males or (H3) male reproductive strategies. Four predictions are generated from these hypotheses and tested with data from two sources: (1) a cross-population Papio baboon literature survey and (2) a population-specific chacma baboon Papio cynocephalus ursinus case study. This population consisted of five groups (four habituated) in the semi-desert Pro-Namib region of Namibia. The predictions were: (P1) female OR male aggression dominates encounters, (P2) the number of females OR males determines the outcome of encounters, (P3) there is frequent aggression OR tolerance at resources during encounters, and (P4) males chase females away from their group OR into their group through herding during group encounters. Tests of these predictions using both databases failed to support H 1 or H2, but did provide evidence in favour of H3; namely female aggression was absent, male aggression was infrequent and directed towards either infants of other groups or females of their own group in herding episodes, and encounters with displacements tended to occur only rarely and mostly where resources were either non-monopolizable or absent. These results imply that BGC is not currently a selective force maintaining baboon social groups in either the study population or other populations across Africa. In order to further investigate the complex behavioural patterns observed in baboon intergroup encounters, data describing the demography and relatedness of groups and individuals are required.
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45

Meise, Kristine, Christina Keller, Guy Cowlishaw, and Julia Fischer. "Sources of acoustic variation: Implications for production specificity and call categorization in chacma baboon (Papio ursinus) grunts." Journal of the Acoustical Society of America 129, no. 3 (March 2011): 1631–41. http://dx.doi.org/10.1121/1.3531944.

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Smit, J. A., S. MacPhail, and J. A. Myburgh. "The Effect of Blood Transfusion on the Immune Response and Renal Graft Survival in the Chacma Baboon." Tissue Antigens 14, no. 2 (December 11, 2008): 105–14. http://dx.doi.org/10.1111/j.1399-0039.1979.tb00829.x.

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Bornman, M. S., D. J. du Plessis, A. J. Ligthelm, and H. J. Tonder. "Histological Changes in the Penis of the Chacma Baboon—A Model to Study Aging Penile Vascular Impotence." Journal of Medical Primatology 14, no. 1 (February 1985): 13–18. http://dx.doi.org/10.1111/j.1600-0684.1985.tb00166.x.

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Bütow, Kurt-W. "Craniofacial Growth Disturbance After Skull Base and Associated Suture Synostoses in the Newborn Chacma Baboon: A Preliminary Report." Cleft Palate-Craniofacial Journal 27, no. 3 (July 1990): 241–52. http://dx.doi.org/10.1597/1545-1569(1990)027<0241:cgdasb>2.3.co;2.

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Bütow, Kurt-W. "Craniofacial Growth Disturbance after Skull Base and Associated Suture Synostoses in the Newborn Chacma Baboon: A Preliminary Report." Cleft Palate Journal 27, no. 3 (July 1990): 241–52. http://dx.doi.org/10.1597/1545-1569_1990_027_0241_cgdasb_2.3.co_2.

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van Rensburg, E. J., J. Mwenda, B. A. Robson, T. Stander, J. D. Laten, G. K. Chege, and S. Engelbrecht. "Simian immunodeficiency viruses (SIVs) from eastern and southern Africa: detection of a SIVagm variant from a chacma baboon." Journal of General Virology 79, no. 7 (July 1, 1998): 1809–14. http://dx.doi.org/10.1099/0022-1317-79-7-1809.

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