Receiving post-conflict affiliation from the enemy's friend reconciles former opponents.

by Roman M Wittig, Christophe Boesch
Published 2010-11-01

Ontogenetic Dietary Shifts and Microscopic Tooth Wear in Western Chimpanzees

by Julia Stuhlträger, Ellen Schulz-Kornas, Roman M. Wittig, Roman M. Wittig, Kornelius Kupczik
Published 2019-08-01

Group-level cooperation in chimpanzees is shaped by strong social ties

by Liran Samuni, Catherine Crockford, Roman M. Wittig
Published 2021-01-01

Play-solicitation gestures in chimpanzees in the wild: flexible adjustment to social circumstances and individual matrices

by Marlen Fröhlich, Roman M. Wittig, Simone Pika
Published 2016-01-01

Urinary Cortisol, Aggression, Dominance and Competition in Wild, West African Male Chimpanzees

by Anna Preis, Anna Preis, Liran Samuni, Liran Samuni, Tobias Deschner, Catherine Crockford, Catherine Crockford, Roman M. Wittig, Roman M. Wittig
Published 2019-04-01

Social rank overrides environmental and community fluctuations in determining meat access by female chimpanzees in the Taï National Park, Côte d’Ivoire

by Julia Riedel, Leo Polansky, Roman M. Wittig, Christophe Boesch
Published 2020-01-01

Single aggressive interactions increase urinary glucocorticoid levels in wild male chimpanzees.

by Roman M Wittig, Catherine Crockford, Anja Weltring, Tobias Deschner, Klaus Zuberbühler
Published 2015-01-01

Seasonal Variation in Physiology Challenges the Notion of Chimpanzees (Pan troglodytes verus) as a Forest-Adapted Species

by Erin G. Wessling, Erin G. Wessling, Tobias Deschner, Roger Mundry, Jill D. Pruetz, Jill D. Pruetz, Roman M. Wittig, Roman M. Wittig, Hjalmar S. Kühl, Hjalmar S. Kühl
Published 2018-05-01

Endogenous peripheral oxytocin measures can give insight into the dynamics of social relationships: a review

by Catherine eCrockford, Tobias eDeschner, Toni E Ziegler, Roman M Wittig
Published 2014-03-01

Urinary Cortisol Increases During a Respiratory Outbreak in Wild Chimpanzees

by Verena Behringer, Verena Behringer, Anna Preis, Doris F. Wu, Doris F. Wu, Catherine Crockford, Catherine Crockford, Fabian H. Leendertz, Roman M. Wittig, Roman M. Wittig, Tobias Deschner
Published 2020-08-01

Group dominance increases territory size and reduces neighbour pressure in wild chimpanzees

by Sylvain Lemoine, Christophe Boesch, Anna Preis, Liran Samuni, Catherine Crockford, Roman M. Wittig
Published 2020-05-01

Maternal effects on offspring growth indicate post-weaning juvenile dependence in chimpanzees (Pan troglodytes verus)

by Liran Samuni, Patrick Tkaczynski, Tobias Deschner, Therese Löhrrich, Roman M. Wittig, Catherine Crockford
Published 2020-01-01

Small Mirrors Do the Trick: A Simple, but Effective Method to Study Mirror Self-Recognition in Chimpanzees

by Kathrin S. Kopp, Sonja J. Ebel, Roman M. Wittig, Daniel B. M. Haun, Catherine Crockford
Published 2021-08-01

Social support reduces stress hormone levels in wild chimpanzees across stressful events and everyday affiliations

by Roman M. Wittig, Catherine Crockford, Anja Weltring, Kevin E. Langergraber, Tobias Deschner, Klaus Zuberbühler
Published 2016-11-01

Bystanders intervene to impede grooming in Western chimpanzees and sooty mangabeys

by Alexander Mielke, Liran Samuni, Anna Preis, Jan F. Gogarten, Catherine Crockford, Roman M. Wittig
Published 2017-01-01

Flexible decision-making in grooming partner choice in sooty mangabeys and chimpanzees

by Alexander Mielke, Anna Preis, Liran Samuni, Jan F. Gogarten, Roman M. Wittig, Catherine Crockford
Published 2018-01-01

Long-term repeatability in social behaviour suggests stable social phenotypes in wild chimpanzees

by Patrick J. Tkaczynski, Alexander Mielke, Liran Samuni, Anna Preis, Roman M. Wittig, Catherine Crockford
Published 2020-08-01

Dental wear patterns reveal dietary ecology and season of death in a historical chimpanzee population.

by Julia Stuhlträger, Ellen Schulz-Kornas, Ottmar Kullmer, Marcel M Janocha, Roman M Wittig, Kornelius Kupczik
Published 2021-01-01

Circadian Rhythms of Urinary Cortisol Levels Vary Between Individuals in Wild Male Chimpanzees: A Reaction Norm Approach

by Ruth Sonnweber, Yimen G. Araya-Ajoy, Verena Behringer, Tobias Deschner, Patrick Tkaczynski, Pawel Fedurek, Anna Preis, Liran Samuni, Zinta Zommers, Cristina Gomes, Klaus Zuberbühler, Klaus Zuberbühler, Roman M. Wittig, Roman M. Wittig, Catherine Crockford, Catherine Crockford
Published 2018-06-01

Consistency of Social Interactions in Sooty Mangabeys and Chimpanzees

by Alexander Mielke, Alexander Mielke, Anna Preis, Anna Preis, Liran Samuni, Liran Samuni, Jan F. Gogarten, Jan F. Gogarten, Jan F. Gogarten, Jan F. Gogarten, Jack D. Lester, Catherine Crockford, Catherine Crockford, Roman M. Wittig, Roman M. Wittig
Published 2021-01-01