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Contact

Department of Human Behavior, Ecology and Culture

Deutscher Platz 6
04103 Leipzig

phone: +49 (341) 3550 - 315
fax: +49 (341) 3550 - 333

e-mail: cissewski@eva.mpg.de


Publications

Behringer, V., Stevens, J. M. G., Deschner, T., Sonnweber, R., & Hohmann, G. (2018). Aging and sex affect soluble alpha klotho levels in bonobos and chimpanzees. Frontiers in Zoology,15: 35.
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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.
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Ravignani, A., & Sonnweber, R. (2017). Chimpanzees process structural isomorphisms across sensory modalities. Cognition,161, 74-79.
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Sonnweber R & Ravignani A (2016). Chimpanzees Process Structural Isomorphisms Across Sensory Modalities. In S.G. Roberts, C. Cuskley, L. McCrohon, L. Barcel-Coblijn, O. Fehr & T. Verhoef (eds.) The Evolution of Language: Proceedings of the 11th International Conference (EVOLANG11). Available online: http://evolang.org/neworleans/papers/76.html.

Ravignani, A., & Sonnweber, R. (2015). Measuring teaching through hormones and time series analysis: Towards a comparative framework. Behavioral and Brain Sciences,38, 40-41. 
DOI 

Stocker M, O’Sullivan E, Sonnweber R, & Caldwell CA (2015) Capuchins’ behavioural and endocrine response to conspecifics’ actions. 6th European Federation for Primatology Meeting, XXII Italian Association of Primatology Congress Rome, Italy, August 25-28, 2015, Folia Primatologica, 367.

Sonnweber R, Ravignani A, Stobbe N, Schiestl G, Wallner B, & Fitch WT (2015) The role of social styles in grooming patterns and stress alleviation. 6th European Federation for Primatology Meeting, XXII Italian Association of Primatology Congress Rome, Italy, August 25-28, 2015, Folia Primatologica, 363-364.

Sonnweber, R. S., Massen, J. J. M., & Fitch, W. T. (2015). Post-copulatory grooming: A conditional mating strategy? Behavioral Ecology and Sociobiology,69, 1749-1759. 
DOI

Sonnweber, R. S., Ravignani, A., Stobbe, N., Schiestl, G., Wallner, B., & Fitch, W. T. (2015). Rank-dependent grooming patterns and cortisol alleviation in Barbary macaques. American Journal of Primatology,77(6), 688-700. 
DOI

Sonnweber, R., Ravignani, A., & Fitch, W. T. (2015). Non-adjacent visual dependency learning in chimpanzees. Animal Cognition,18(3), 733-745. 
DOI

Sonnweber RS, Stobbe N, Zavala Romero O, Slice DE, Fieder M, & Wallner B (2013) A New Method for the Analysis of Soft Tissues with Data Acquired under Field Conditions. PLOS ONE 8(6), e67521.

Ravignani A, Sonnweber RS, Stobbe N, & Fitch WT (2013) Action at a distance: dependency sensitivity in a New World primate. Biology Letters 9, 20130852.

Ravignani A, Olivera VM, Gingras B, Hofer R, Hernandez CR, Sonnweber RS, & Fitch WT (2013) Primate Drum Kit: A System for Studying Acoustic Pattern Production by Non-Human Primates Using Acceleration and Strain Sensors. Sensors, 13, 9790-9820.

Ravignani A, Gingras B, Asano R, Sonnweber R, Matellan V, & Fitch WT (2013) The Evolution of Rhythmic Cognition: New Perspectives and Technologies in Comparative Research. Proceedings of the 35th Annual Conference of the Cognitive Science Society, Ed: Cognitive Science Society (pp. 1199-1204).

Dittami J, Sonnweber RS, Schiestl G, Shaw E, Wallner B, & Machatschke I (2008) Tourism on the rock. The apes demise in Gibraltar Ethologische Gesellschaft Regensburg.

Dittami J, Prossinger H, Wallner B, Schiestl G, Sonnweber RS, Shaw E, & Fieder M (2006) Estrogen- Progestin ratios may affect both the size and form of female anogenital swellings in Barbary macaques. Poster at the 10th Annual Meeting of the Society for Behavioral Neuroendocrinology. Pittsburgh, Penn- sylvania, USA.

Grant VJ, Konecna M, Sonnweber RS, Irwin RJ, & Wallner B (2010) Primate mothers’ pre-conception testosterone levels relate to both dominance and sex of offspring. Animal Behaviour 82, 893-899.