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Patrick Tkaczynski

Max Planck Institute for Evolutionary Anthropology
Department of Human Behavior, Ecology and Culture 
Deutscher Platz 6
04103 Leipzig
Germany

phone: 0049 (0) 341 3550 258
e-mail: patrick_tkaczynskieva.mpgde

Research
Curriculum Vitae
Publications

Research

Establishing and maintaining strong, long-term, dyadic social bonds enhances reproductive success, health, and longevity. However not all individuals in a social group exhibit the same social bonding patterns. Within an ERC-funded project (awarded to Catherine Crockford) I investigate how endocrine mechanisms (oxytocin, glucocorticoid levels) are associated to different social bonding phenotypes.

Curriculum Vitae

2016-ongoing

Postdoctoral research fellow within the ERC project ”ApeAttachment”,
awarded to Dr Catherine Crockford,
Department of Primatology,
Max Planck Institute for Evolutionary Anthropology
2013-2016PhD at the University of Roehampton,
Centre for Research in Evolutionary and Environmental Anthropology,
London,
United Kingdom

Publications

In press

Girard-Buttoz, C., Tkaczynski, P. J., Samuni, L., Fedurekt, P., Gomes, C. M., Löhrich, T., Manin, V., Preis, A., Valé, P. D., Deschner, T., Wittig, R. M., & Crockford, C. (in press). Early maternal loss leads to short but not long-term effects on diurnal cortisol slopes in wild chimpanzees. eLife.

2021

Fedurek, P., Tkaczynski, P. J., Hobaiter, C., Zuberbühler, K., Wittig, R. M., & Crockford, C. (2021). The function of chimpanzee greeting calls is modulated by their acoustic variation. Animal Behaviour, 174, 279-289.
DOI    BibTeX   Endnote   

Bründl, A. C., Tkaczynski, P. J., Kohou, G., Boesch, C., Wittig, R. M., & Crockford, C. (2021). Systematic mapping of developmental milestones in wild chimpanzees. Developmental Science, 24(1): e12988.
Open Access    DOI    BibTeX   Endnote   

2020

Girard-Buttoz, C., Tkaczynski, P. J., Samuni, L., Fedurekt, P., Gomes, C., Löhrich, T., Manin, V., Preis, A., Valé, P. D., Deschner, T., Wittig, R. M., & Crockford, C. (2020). Early maternal loss affects diurnal cortisol slopes in immature but not mature wild chimpanzees. bioRxiv.
DOI    BibTeX   Endnote   

Girard-Buttoz, C., Surbeck, M., Samuni, L., Tkaczynski, P. J., Boesch, C., Fruth, B., Wittig, R. M., Hohmann, G., & Crockford, C. (2020). Information transfer efficiency differs in wild chimpanzees and bonobos, but not social cognition. Proceedings of the Royal Society B: Biological Sciences, 287(1929): 20200877.
Open Access    DOI    BibTeX   Endnote   

Tkaczynski, P. J., Mielke, A., Samuni, L., Preis, A., Wittig, R. M., & Crockford, C. (2020). Long-term repeatability in social behaviour suggests stable social phenotypes in wild chimpanzees. Royal Society Open Science, 7(8): 200454.
Open Access    DOI    BibTeX   Endnote   

Fedurek, P., Tkaczynski, P., Asiimwe, C., Hobaiter, C., Samuni, L., Lowe, A. E., Dijrian, A. G., Zuberbühler, K., Wittig, R. M., & Crockford, C. (2020). Maternal cannibalism in two populations of wild chimpanzees. Primates, 61, 181-187.
Open Access    DOI    BibTeX   Endnote   

Samuni, L., Tkaczynski, P. J., Deschner, T., Löhrrich, T., Wittig, R. M., & Crockford, C. (2020). Maternal effects on offspring growth indicate post-weaning juvenile dependence in chimpanzees (Pan troglodytes verus). Frontiers in Zoology, 17: 1.
Open Access    DOI    BibTeX   Endnote   

Girard-Buttoz, C., Surbeck, M., Samuni, L., Tkaczynski, P. J., Boesch, C., Fruth, B., Wittig, R. M., Hohmann, G., & Crockford, C. (2020). Chimpanzees outperform bonobos at an experimental cooperative task in the wild: Information transfer around a stationary danger. Folia Primatologica, 91(3), 255-256.
DOI    BibTeX   Endnote   

Tkaczynski, P. J., Behringer, V., Ackermann, C., Fedrurek, P., Fruht, B., Girard-Buttoz, C., Hobaiter, C., Lee, S., Löhrich, T., Preis, A., Samuni, L., Zommers, Z., Zuberbühler, K., Deschner, T., Wittig, R. M., Hohmann, G., & Crockford, C. (2020). Patterns of urinary cortisol levels during ontogeny appear population- rather than species-specific in wild chimpanzees and bonobos. Journal of Human Evolution, 147: 102869.
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Tkaczynski, P. J., Samuni, L., Sonnweber, R., Deschner, T., Vigilant, L., Löhrrich, T., Wittig, R. M., & Crockford, C. (2020). Mum’s the word: The lasting impacts of maternal loss on offspring survival, growth and reproductive success in wild chimpanzees. Folia Primatologica, 91(3), 276-277.
DOI    BibTeX   Endnote   

2019

Kuběnová, B., Ostner, J., Schülke, O., Majolo, B., Šmilauer, P., Waterman, J., Tkaczynski, P. J., & Konečná, M. (2019). The male and female perspective in the link between male infant care and mating behaviour in Barbary macaques. Ethology, 125(12), 914-924.
DOI    BibTeX   Endnote   

Tkaczynski, P. J., Ross, C., Lehmann, J., Mouna, M., Majolo, B., & MacLarnon, A. (2019). Repeatable glucocorticoid expression is associated with behavioural syndromes in males but not females in a wild primate. Royal Society Open Science, 6: 190256.
Open Access    DOI    BibTeX   Endnote   

Tkaczynski, P. J., Ross, C., MacLarnon, A. M., Mohamed Majolo, B., & Lehmann, J. (2019). Measuring personality in the field: An in situ comparison of personality quantification methods in wild Barbary macaques (Macaca sylvanus). Journal of Comparative Psychology, 133(3), 313-325.
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2018

Sonnweber, R., Araya-Ajoy, Y. G., Behringer, V., Deschner, T., Tkaczynski, P. J., Fedurek, P., Preis, A., Samuni, L., Zommers, Z., Gomes, C., Zuberbühler, K., Wittig, R. M., & Crockford, C. (2018). Circadian rhythms of urinary cortisol levels vary between individuals in wild male chimpanzees: A reaction norm approach. Frontiers in Ecology and Evolution, 6: 85.
Open Access    DOI    BibTeX   Endnote   

Campbell, L. A. D., Tkaczynski, P. J., Lehmann, J., Mouna, M., & Majolo, B. (2018). Social thermoregulation as a potential mechanism linking sociality and fitness: Barbary macaques with more social partners form larger huddles. Scientific Reports, 8(1): 6074.
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2016

Campbell, L. A. D., Tkaczynski, P. J., Mouna, M., Qarro, M., Waterman, J., & Majolo, B. (2016). Behavioral responses to injury and death in wild Barbary macaques (Macaca sylvanus). Primates, 57(3), 309-315.
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2015

MacLarnon, A. M., Sommer, V., Goffe, A. S., Higham, J. P., Lodge, E., Tkaczynski, P. J., & Ross, C. (2015). Assessing adaptability and reactive scope: Introducing a new measure and illustrating its use through a case study of environmental stress in forest-living baboons. General and Comparative Endocrinology, 215, 10-24.
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2014

Tkaczynski, P. J., MacLarnon, A., & Ross, C. (2014). Associations between spatial position, stress and anxiety in forest baboons Papio anubis. Behavioural Processes, 108, 1-6.
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Price, A. R. G., Ghazi, S. J., Tkaczynski, P. J., Venkatachalam, A. J., Santillan, A., Pancho, T., Metcalfe, R., & Saunders, J. (2014). Shifting environmental baselines in the Red Sea. Marine Pollution Bulletin, 78(1–2), 96-101.
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2005

Steverding, D., Morgan, E., Tkaczynski, P. J., Walder, F., & Tinsley, R. (2005). Effect of Australian tea tree oil on Gyrodactylus spp. infection of the three-spined stickleback Gasterosteus aculeatus. Diseases of Aquatic Organisms, 66(1), 29-32.
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