Publications

Pawel Fedurek, Patrick J. Tkaczynski, Catherine Hobaiter, Klaus Zuberbühler, Roman M. Wittig, Catherine Crockford (2021). The Function of Chimpanzee Greeting Calls Is Modulated by Their Acoustic Variation.

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Aisha C. Bründl, Patrick J. Tkaczynski, Grégoire Nohon Kohou, Christophe Boesch, Roman M. Wittig, Catherine Crockford (2021). Systematic Mapping of Developmental Milestones in Wild Chimpanzees.

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Cédric Girard-Buttoz, Patrick J. Tkaczynski, Liran Samuni, Pawel Fedurek, Cristina Gomes, Therese Löhrich, Virgile Manin, Anna Preis, Prince Valé, Tobias Deschner, Roman M. Wittig, Catherine Crockford (2020). Early Maternal Loss Affects Diurnal Cortisol Slopes in Immature but Not Mature Wild Chimpanzees. Cold Spring Harbor Laboratory.

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Patrick J. Tkaczynski, Verena Behringer, Corinne Y. Ackermann, Pawel Fedurek, Barbara Fruth, Cédric Girard-Buttoz, Catherine Hobaiter, Sean M. Lee, Therese Löhrich, Anna Preis, Liran Samuni, Zinta Zommers, Klaus Zuberbühler, Tobias Deschner, Roman M. Wittig, Gottfried Hohmann, Catherine Crockford (2020). Patterns of Urinary Cortisol Levels during Ontogeny Appear Population Specific Rather than Species Specific in Wild Chimpanzees and Bonobos.

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Cédric Girard-Buttoz, Martin Surbeck, Liran Samuni, Patrick Tkaczynski, Christophe Boesch, Barbara Fruth, Roman M. Wittig, Gottfried Hohmann, Catherine Crockford (2020). Information Transfer Efficiency Differs in Wild Chimpanzees and Bonobos, but Not Social Cognition. Royal Society.

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Pawel Fedurek, Patrick Tkaczynski, Caroline Asiimwe, Catherine Hobaiter, Liran Samuni, Adriana E. Lowe, Appolinaire Gnahe Dijrian, Klaus Zuberbühler, Roman M. Wittig, Catherine Crockford (2020). Maternal Cannibalism in Two Populations of Wild Chimpanzees.

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Liran Samuni, Patrick Tkaczynski, Tobias Deschner, Therese Löhrrich, Roman M. Wittig, Catherine Crockford (2020). Maternal Effects on Offspring Growth Indicate Post-Weaning Juvenile Dependence in Chimpanzees (Pan Troglodytes Verus).

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Patrick J. Tkaczynski, Alexander Mielke, Liran Samuni, Anna Preis, Roman M. Wittig, Catherine Crockford (2020). Long-Term Repeatability in Social Behaviour Suggests Stable Social Phenotypes in Wild Chimpanzees. Royal Society.

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Barbora Kuběnová, Julia Ostner, Oliver Schülke, Bonaventura Majolo, Petr Šmilauer, James Waterman, Patrick Tkaczynski, Martina Konečná (2019). The Male and Female Perspective in the Link between Male Infant Care and Mating Behaviour in Barbary Macaques.

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P. J. Tkaczynski, C. Ross, J. Lehmann, M. Mouna, B. Majolo, A. MacLarnon (2019). Repeatable Glucocorticoid Expression Is Associated with Behavioural Syndromes in Males but Not Females in a Wild Primate. Royal Society.

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Patrick J. Tkaczynski, C. Ross, A. M. MacLarnon, Bonaventura Majolo, Julia Lehmann (2019). Measuring Personality in the Field: An in Situ Comparison of Personality Quantification Methods in Wild Barbary Macaques (Macaca Sylvanus).

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Liz A. D. Campbell, Patrick J. Tkaczynski, Julia Lehmann, Mohamed Mouna, Bonaventura Majolo (2018). Social Thermoregulation as a Potential Mechanism Linking Sociality and Fitness: Barbary Macaques with More Social Partners Form Larger Huddles.

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Ruth Sonnweber, Yimen G. Araya-Ajoy, Verena Behringer, Tobias Deschner, Patrick Tkaczynski, Pawel Fedurek, Anna Preis, Liran Samuni, Zinta Zommers, Cristina Gomes, Klaus Zuberbühler, Roman M. Wittig, Catherine Crockford (2018). Circadian Rhythms of Urinary Cortisol Levels Vary Between Individuals in Wild Male Chimpanzees: A Reaction Norm Approach.

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Liz A. D. Campbell, Patrick J. Tkaczynski, Mohamed Mouna, Abderrahim Derrou, Lahcen Oukannou, Bonaventura Majolo, Els van Lavieren (2018). Behavioural Thermoregulation via Microhabitat Selection of Winter Sleeping Areas in an Endangered Primate: Implications for Habitat Conservation. Royal Society.

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Liz A. D. Campbell, Patrick J. Tkaczynski, Mohamed Mouna, Mohamed Qarro, James Waterman, Bonaventura Majolo (2016). Behavioral Responses to Injury and Death in Wild Barbary Macaques (Macaca Sylvanus).

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Patrick Tkaczynski (2016). The Behavioural Ecology of Personality in Wild Barbary Macaques.

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A. M. MacLarnon, V. Sommer, A. S. Goffe, J. P. Higham, E. Lodge, P. Tkaczynski, C. Ross (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.

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Patrick Tkaczynski, Ann MacLarnon, Caroline Ross (2014). Associations between Spatial Position, Stress and Anxiety in Forest Baboons Papio Anubis.

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A. R. G. Price, S. J. Ghazi, P. J. Tkaczynski, A. J. Venkatachalam, A. Santillan, T. Pancho, R. Metcalfe, J. Saunders (2014). Shifting Environmental Baselines in the Red Sea.

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Dietmar Steverding, Edward Morgan, Patrick Tkaczynski, Foster Walder, Richard Tinsley (2005). Effect of Australian Tea Tree Oil on Gyrodactylus Spp. Infection of the Three-Spined Stickleback Gasterosteus Aculeatus.

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(0001). Measuring individual differences in social behaviour.