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Verena Behringer

verena_behringer.jpg

Max Planck Institute for Evolutionary Anthropology
Department of Primatology
Deutscher Platz 6
D-04103 Leipzig, Germany

phone: +49 341 3550 245
e-mail: verena_behringereva.mpgde

Research Interests
Curriculum Vitae
Publications

Research Interests

I am currently working on the "growing up"- porject. One major goal of the “growing up” project is to compare developmental changes in bonobos and chimpanzees, to identify similarities and differences during their ontogeny, and relate this to corresponding information from modern humans. Choosing physiological markers (steroids like testosterone and DHEA, thyroid homrones, neopterin, klotho and IGFBP-3) and somatic traits (forearm length measures) that are representative for somatic growth, reproduction, and maintenance, supports the second major goal, to construct life history (LH) profiles of the two ape species. Adding published data from modern humans facilitates the third goal, the detection of LH traits of the last common ancestor of hominoid and hominid primates. The “growing up” project contributes to the existing information: Firstly, it is the first comparative study on the development of bonobos and chimpanzees that is based on a large data set from living individuals that can be transposed from cross-sectional into longitudinal analyses. Second, it includes multiple physiological markers, and combines these measures with data on somatic growth. Third, it includes extensive validation of physiological markers that had not yet been explored in nonhuman primates, or that had been measured in matrices that require invasive sampling. With these non-invasive methods, the project paves the way for elaborate studies of development and LH of apes living in natural environments.

Curriculum Vitae

Current position

Since August 2010 Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Germany.

Theoretical expertise:

  • Group living and social stress and coping mechanisms
  • Ontogeny, aging, and life history
  • Nutrition and energy balance

Labor expertise:

  • Measuring and quantifying physiological marker system on stress (glucocorticoids, alpha amylase), reproduction (sex steroids), nutrition (C-peptide), health (Neopterin), development and aging (thyroid hormones, sex steroids, DHEAS, soluble alpha klotho, IGFBP-3)
  • Assay validation and -modification
  • Extraction methods e.g., to analyze hormones in serum, saliva, feces, and urine

Education

Since January 2014Postdoctoral fellow Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig, Germany.
July – December 2013Postdoctoral fellow Postdoctoral fellow Royal Zoological Society Antwerp, Belgium (KMDA)
August 2010 – July 2013Postdoctoral fellow Max Planck Institute for Evolutionary Anthropology, Department of Primatology, Leipzig
January 2007 – March 2011JUSTUS-LIEBIG-UNIVERSITY GIESSEN
PhD, magna cum laude.
"Influence of different keeping conditions of the behavior and stress hormones in zoo housed gorilla (Gorilla g. gorilla), Sumatran orangutans (Pongo abelii) and pygmy chimpanzees (Pan paniscus)"

Relevant professional experience

June – July 2010ST. ANDREWS UNIVERSITY
Volunteer involved in observation and experimental studies with chimpanzee, squirrel monkeys and capuchins.
Learning NODLUS observer software.
October – January 2010UNIVERSITY ZÜRICH and FRANKFURT ZOO
Scientific project in cooperation with Dr. Thomas Geissmann, Anthropological Institute, University Zürich-Irchel, Switzerland.
Title: “Self-cover behavior in Primates“
March 2006 – January 2007JUSTUS-LIEBIG-UNIVERSITY GIESSEN
Scientific project
Title: “Investigation of the regurgitation and reingestion behavior in three zoo housed great ape species (Gorilla g. gorilla, Pongo abelii, Pan paniscus“
Since January 2008ZOOLOGICAL SOCIETY FRANKFURT (ZSF)
Graduate assistance
  • Support for the project “Naturschutz-Botschafter” (“Environment Ambassadors”)
  • Public and press relations
  • Marketing and Fundraising 
May until June 2009FRANKFURT ZOO
Trainee-Assistant
  •  Animal management
     Public and press relations 
March 2007 – March 2010JUSTUS-LIEBIG-UNIVERSITY GIESSEN
Graduate assistance
  • Support and management of courses: Institute of animal physiology, working group Ethology
  • Support and management of Diploma and Bachelor theses 
2006 – 2010UNIVERSITY OF VETERINARY MEDICINE VIENNA, Austria
Hormon analyzing in apes saliva with an Enzyme-Immuno-Assay (EIA) as well preparing fecal samples for EIA.
  • Institute of Biochemistry, University of veterinary medicine, Prof. Dr. Erich Möstl
August 2006FRANKFURT ZOO
Zoo veterinary trainee
  • Keeping and nutrition in zoo animals, surgery, endoscopy, parasitology and preparation of animal transport 
August 2003OPEL-ZOO, Georg von Opel-Freigehege für Tierforschung e.V. (Georg von Opel outdoor enclosure for animal research)
  • Trainee animal keeping, keeping and care of ungulates, monkeys, carnivores, birds and pets

Professional and Public Service

Ad hoc reviewer:
Journal:

  • Animal Welfare
  • Behaviour
  • Clinical Interventions in Aging
  • General and Comparative Endocrinology
  • International Journal of Primatology
  • Journal of Zoo & Aquarium Research
  • Methods in Ecology and Evolution
  • PloSOne
  • Primates
  • Psychoneuroendocrinology
  • Scientific reports
  • Zoo Biology

Vocational training

February 2010EUPRIM-NET, Network Activity 4, German Primate Center, Göttingen
  • “Course of essential“ (inter alia diversity, social behavior, communication, nutrition, parasites in primates), 1.-4. February 2010 
2008EUPRIM-NET, Network Activity 4, German Primate Center, Göttingen
  • Course 3: “Primate nutrition“, 4.-7. February 2008
  • Course 4: “Stress and its implication on primate welfare”, 13.-16. October 2008 
2007EUPRIM-NET, Network Activity 4, German Primate Center, Göttingen
  • Course 1: “Primate diversity, morphology and natural history”, 16.-19. April 2007
  • Course 2: “Primate behaviour, environmental enrichment and ethical aspects”, 29. October – 1. November 2007 
February 2007DOCTORATE PROGRAMME OF GERMAN ZOOLOGICAL SOCIETY (DZG)-PROFESSIONAL GROUP BEHAVIOR BIOLOGY, Göttingen, German Primate Center and University Göttingen
28. February 2007BASIC WORKSHOP: ANIMAL-TRAINING, Frankfurt Zoo
24. January 2004INSITUTE OF ANTHROPOLOGY, Justus-Liebig-University Giessen
Primate ecology course
2003 – 2004JUSTUS-LIEBIG-UNIVERSITY GIESSEN
“Methods for animal experiments for biologists “ to obtain a license for laboratory animal science
Summer 2003JUSTUS-LIEBIG-UNIVERSITY GIESSEN
Student assistance, Institute for General and Special Zoology
  • Cell biology and cell culture methods
  • Analyzing with Immunohistochemistry 

Volunteer Work

since 2018GfP (German Society for Primatology)
Boardmember
2010-2016RETTET DEN DRILL e.V. (Society for the prevention of drills)
Media officer
2. leader
June 2009FRANKFURT ZOO and ZOOLOGICAL SOCIETY FRANKFURT
Volunteer, “Gorilla Symposiums“
Year of the Gorilla, 9.-11. June 2009
2007 – 2009FRANKFURT ZOO “Dreamnight at the zoo”
Volunteer
September 2008ZOOLOGICAL SOCIETY FRANKFURT
Volunteer, conference: “Making Conservation Count/ One Goal with Different Approaches to Making Parks Work“
2007ASSOCIATION OF GERMAN ZOOKEEPERS
Member of the “Working group Madagascar“, Association of German zookeepers (BDZ) for EAZA- Madagascar- Campagne

Publications

Im Druck

Behringer, V., Deimel, C., Stevens, J., Kreyer, M., Lee, S., Hohmann, G., Fruth, B., & Heistermann, M. (in press). Cell-mediated immune ontogeny is affected by sex but not environmental context in a long-lived primate species. Frontiers in Ecology and Evolution.

2021

Behringer, V., Krumbholz, A., Stevens, J. M. G., Keiler, A. M., Zierau, O., & Hohmann, G. (2021). Exploring the utility of hair endocannabinoids for monitoring homeostasis in bonobos. Physiological and Biochemical Zoology, 94(2), 83-98.
DOI    BibTeX   Endnote   

2020

Behringer, V., Preis, A., Wu, D., Crockford, C., Leendertz, S. A. J., Wittig, R. M., & Deschner, T. (2020). Urinary cortisol increases during a respiratory outbreak in wild chimpanzees. Frontiers in Veterinary Science, 7: 485.
Open Access    DOI    BibTeX   Endnote   

Behringer, V., Stevens, J. M. G., Deschner, T., & Hohmann, G. (2020). Growing up: Comparing ontogeny of bonobos and chimpanzees. In L. M. Hopper, & S. R. Ross (Eds.), Chimpanzees in context: A comparative perspective on chimpanzee behavior, cognition, conservation, and welfare (pp. 36-60). Chicago: The University of Chicago Press.
BibTeX   Endnote   

Deschner, T., Hohmann, G., Ortmann, S., Schaebs, F. S., & Behringer, V. (2020). Urinary total T3 levels as a method to monitor metabolic changes in relation to variation in caloric intake in captive bonobos (Pan paniscus). General and Comparative Endocrinology, 285: 113290.
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.
DOI    BibTeX   Endnote   

2019

Deschner, T., & Behringer, V. (2019). Endocrinological analyses at Taï. In C. Boesch, & R. M. Wittig (Eds.), The chimpanzees of the Taï forest: 40 years of research (pp. 78-88). Cambridge University Press.
BibTeX   Endnote   

Behringer, V., Stevens, J. M. G., Wittig, R. M., Crockford, C., Zuberbühler, K., Leendertz, F. H., & Deschner, T. (2019). Elevated neopterin levels in wild, healthy chimpanzees indicate constant investment in unspecific immune system. BMC Zoology, 4: 2.
Open Access    DOI    BibTeX   Endnote   

Hohmann, G., Vigilant, L., Mundry, R., Behringer, V., & Surbeck, M. (2019). Aggression by male bonobos against immature individuals does not fit with predictions of infanticide. Aggressive Behavior, 45(3), 300-309.
DOI    BibTeX   Endnote   

2018

Löhrich, T., Behringer, V., Wittig, R. M., Deschner, T., & Leendertz, F. H. (2018). The use of neopterin as a noninvasive marker in monitoring diseases in wild chimpanzees. EcoHealth, 15(4), 792-803.
DOI    BibTeX   Endnote   

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.
Open Access    DOI    BibTeX   Endnote   

Behringer, V., Deimel, C., Hohmann, G., Negrey, J., Schaebs, F. S., & Deschner, T. (2018). Applications for non-invasive thyroid hormone measurements in mammalian ecology, growth, and maintenance. Hormones and Behavior, 105, 66-85.
DOI    BibTeX   Endnote   

Wu, D., Behringer, V., Wittig, R. M., Leendertz, F., & Deschner, T. (2018). Urinary neopterin levels increase and predict survival during a respiratory outbreak in wild chimpanzees (Taï National Park, Côte d'Ivoire). Scientific Reports, 8: 13346.
Open Access    DOI    BibTeX   Endnote   

Behringer, V., Stevens, J., Deschner, T., & Hohmann, G. (2018). Getting closer: Contributions of zoo studies to research on the physiology and development of Bonobos Pan paniscus, Chimpanzees Pan troglodytes and other primates. International Zoo Yearbook, 52(1), 34-47.
DOI    BibTeX   Endnote   

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   

2017

Wu, D., Behringer, V., Wittig, R. M., Leendertz, F., & Deschner, T. (2017). Urinary neopterin increases during a respiratory outbreak in wild chimpanzees (Tai National Park, Cote d'Ivoire). Folia primatologica, 88(2), 143.
DOI    BibTeX   Endnote   

Behringer, V., & Deschner, T. (2017). Non-invasive monitoring of physiological markers in primates. Hormones and Behavior, 91, 3-18.
DOI    BibTeX   Endnote   

Behringer, V., Stevens, J. M. G., Leendertz, F. H., Hohmann, G., & Deschner, T. (2017). Validation of a method for the assessment of urinary neopterin levels to monitor health status in non-human-primate species. Frontiers in Physiology, 8: 51.
Open Access    DOI    BibTeX   Endnote   

Boehlke, C., Pötschke, S., Hannig, C., Zierau, O., & Behringer, V. (2017). Does diet influence salivary enzyme activities in elephant species? Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology, 187, 213-226.
DOI    BibTeX   Endnote   

Wu, D., Behringer, V., Wittig, R. M., Leendertz, F., & Deschner, T. (2017). Urinary neopterin increases during a respiratory outbreak in wild chimpanzees (Taï National Park, Côte d’Ivoire). Talk presented at 7th European Federation for Primatology Meeting - 30e Colloque de la Société Francophone de Primatologie. Strasbourg, France. 2017-08-21 - 2017-08-25.
Open Access    BibTeX   Endnote   

2016

Schaebs, F. S., Wolf, T. E., Behringer, V., & Deschner, T. (2016). Fecal thyroid hormones allow for the noninvasive monitoring of energy intake in capuchin monkeys. Journal of Endocrinology, 231(1), 1-10.
DOI    BibTeX   Endnote   

Oelze, V. M., Douglas, P. H., Stephens, C. R., Behringer, V., Surbeck, M., Richards, M. P., Fruth, B., & Hohmann, G. (2016). The steady state great ape? Long term isotopic records reveal the effects of season, social rank and reproductive status on bonobo feeding behaviour. PLoS One, 11(9): e0162091.
Open Access    DOI    BibTeX   Endnote   

Behringer, V., Wudy, S. A., Blum, W. F., Stevens, J. M. G., Rehmer, T., Boesch, C., & Hohmann, G. (2016). Sex differences in age-related decline of urinary insulin-like growth factor-binding protein-3 levels in adult bonobos and chimpanzees. Frontiers in endocrinology, 7: 118.
Open Access    DOI    BibTeX   Endnote   

Kano, F., Hirata, S., Deschner, T., Behringer, V., & Call, J. (2016). Nasal temperature drop in response to a playback of conspecific fights in chimpanzees: A thermo-imaging study. Physiology & Behavior, 155, 83-94.
DOI    BibTeX   Endnote   

Behringer, V., Stevens, J. M. G., Kivell, T. L., Neufuss, J., Boesch, C., & Hohmann, G. (2016). Within arm's reach: Measuring forearm length to assess growth patterns in captive bonobos and chimpanzees. American Journal of Physical Anthropology, 161(1), 37-43.
DOI    BibTeX   Endnote   

2015

Schaebs, F. S., Wolf, T. E., Behringer, V., & Deschner, T. (2015). Monitoring energy balance in yellow breasted capuchins (Sapajus xanthosternos) by measuring total T3 in non-invasively collected faecal samples. Folia primatologica, 86(4), 353-354.
DOI    BibTeX   Endnote   

Surbeck, M., Behringer, V., Deschner, T., & Hohmann, G. (2015). Urinary C-peptide levels in male bonobos (Pan paniscus) are related to gregariousness and rank but not to mate competition. Folia primatologica, 86(4), 368.
DOI    BibTeX   Endnote   

Surbeck, M., Deschner, T., Behringer, V., & Hohmann, G. (2015). Urinary C-peptide levels in male bonobos (Pan paniscus) are related to party size and rank but not to mate competition. Hormones and Behavior, 71, 22-30.
DOI    BibTeX   Endnote   

Behringer, V., Deschner, T., Deimel, C., Stevens, J. M., & Hohmann, G. (2015). Differences in life history strategies in bonobos and chimpanzees: Evidence from age-related changes in urinary testosterone levels. American Journal of Physical Anthropology, 156(S60), 82-82.
DOI    BibTeX   Endnote   

2014

Grüter, C. C., Deschner, T., Behringer, V., Fawcett, K., & Robbins, M. M. (2014). Socioecological correlates of energy balance using urinary C-peptide measurements in wild female mountain gorillas. Physiology & Behavior, 127, 13-19.
DOI    BibTeX   Endnote   

Behringer, V., Deschner, T., Deimel, C., Stevens, J., & Hohmann, G. (2014). Age-related changes in urinary testosterone levels suggest differences in puberty onset and divergent life history strategies in bonobos and chimpanzees. Hormones and Behavior, 66(3), 525-533.
DOI    BibTeX   Endnote   

Behringer, V., Deschner, T., Murtagh, R., Stevens, J. M., & Hohmann, G. (2014). Age-related changes in thyroid hormone levels of bonobos and chimpanzees indicate heterochrony in development. Journal of Human Evolution, 66(1), 83-88.
DOI    BibTeX   Endnote   

Behringer, V., Deschner, T., Murtagh, R., Stevens, J. M., & Hohmann, G. (2014). In bonobos and chimpanzees age-related changes in urinary thyroid hormones indicate heterochrony in their development. American Journal of Physical Anthropology, 153(S58), 75-76.
DOI    BibTeX   Endnote   

Behringer, V., Stevens, J. M. G., Hohmann, G., Möstl, E., Selzer, D., & Deschner, T. (2014). Testing the effect of medical positive reinforcement training on salivary cortisol levels in bonobos and orangutans. PLoS One, 9(9): e108664.
Open Access    DOI    BibTeX   Endnote   

2013

Behringer, V., Borchers, C., Deschner, T., Möstl, E., Selzer, D., & Hohmann, G. (2013). Measurements of salivary alpha amylase and salivary cortisol in hominoid primates reveal within-species consistency and between-species differences. PLoS One, 8(4): e60773.
Open Access    DOI    BibTeX   Endnote   

Behringer, V., Deschner, T., & Hohmann, G. (2013). Growing up in the light of endocrinology: Life history features of Bonobos and Chimpanzees. Folia primatologica, 84, 248.
DOI    BibTeX   Endnote   

Murtagh, R., Behringer, V., & Deschner, T. (2013). LC-MS as a method for non-invasive measurement of steroid hormones and their metabolites in urine and faeces of animals. Veterinary Medicine Austria, 100(9-10): 4, pp. 247-254. Retrieved from http://www.wtm.at/Archiv.html.
BibTeX   Endnote   

2012

Behringer, V., Hohmann, G., Stevens, J. M. G., Weltring, A., & Deschner, T. (2012). Adrenarche in bonobos (Pan paniscus): Evidence from ontogenetic changes in urinary dehydroepiandrosterone-sulfate levels. Journal of Endocrinology, 214(1), 55-65.
DOI    BibTeX   Endnote   

Behringer, V., Deschner, T., Möstl, E., Selzer, D., & Hohmann, G. (2012). Stress affects salivary alpha-Amylase activity in bonobos. Physiology & Behavior, 105(2), 476-482.
DOI    BibTeX   Endnote   

2009

Behringer, V.; Clauß, W.; Hachenburger, K.; Kuchar, A.; Möstl, E.; Selzer, D. (2009). Effect of giving birth on the cortisol level in a bonobo groups (Pan paniscus) saliva, Short Communication, Primates, Volume 50, 2009, p. 190-193
DOI

2008

Behringer, V.; Hachenburger, K.; Knott, C.; Selzer; D. (2008). What Is a Gorilla’s Most-Loved Toy?. Shape of Enrichment, Volume 17, Issue 1-2, p. 6-11

Oral presentation

2015“Within arm's reach - how and why to measure arm length in bonobos?” Annual CRC Zoo Research Symposium. 20 November 2015. ZOO Antwerpen, Belgium

“Age-related changes in urinary thyroid hormones indicate heterochrony in development in bonobos and chimpanzees“ 84th annual meeting, American Association of Physical Anthropologists, 24-28 March 2015, St. Louis, Missouri, USA

“Growing up - Hormonal correlates during postnatal development in bonobos and chimpanzees in comparison to modern humans” Seminar talk, Department of Developmental and Comparative Psychology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany 
2014"Hormones Reflect Life History Profiles: Evidence from Comparative Studies on Humans and Apes" 
Invited talk, Max-Planck Institute Tübingen, Germany

"Growing up - Hormonal changes during development in bonobos and chimpanzees in comparison to humans"
Invited speaker Max-Planck LeadNet, 26/27 May 2014, Mainz, Germany

"Growing up – Hormonal changes during development in bonobos and chimpanzees"
Invited talk, Anthropology Department, Indiana University Bloomington, USA

"Age-related changes in urinary thyroid hormones indicate heterochrony in development in bonobos and chimpanzees"
83rd Annual Meeting of the American Association of Physical Anthropologists, 8-12 April 2014, Calgary, Alberta, Canada
2013

"Growing up – Hormones and development in humans and apes" Lecture series "Zoo experience, adventure conservation", 2 October 2013, Frankfurt, Germany

"Growing up in the light of endocrinology: Life history features of bonobos and chimpanzees" Conference "European Federation Primatology", 10-13th September 2013, Antwerp, Belgium

“What hormones can tell us about development in bonobos and chimpanzees” Annual CRC Zoo Research Symposium. 29 November 2013. ZOO Antwerpen, Belgium

2012"Adrenarche in bonobos (Pan paniscus). Ontogenetic development in bonobos and chimpanzees."
Conference "Non-invasive Monitoring of Hormones" (ISWE 2012), 23. – 26. September 2012, Wien, Österreich
2010"Living together- Zusammen leben?!" V. Behringer
11. Primate Caretaker Meeting Apenheul, Apeldoorn, Netherland, 07.-10. October 2010

"Sumatra Orang-Utans – stressiger Speichel?" (Sumatran Orangutans – stressful saliva?) V. Behringer
Meeting of “Naturschutzbotschafter” (Conservation Ambassadors), Frankfurt, 17. February 2010
2009"Verhaltens- und Stressuntersuchung bei Großen Menschenaffen" (Analyzing behavior and stress in great apes), V. Behringer
Annual meeting research group for wild biology in Giessen, 18. Mai 2009, Gießen
2008"Stress of zoo housed apes" and "Moving apes, Ape transfer in Zoo Frankfurt" V. Behringer
EUPRIM-Net course „Stress and its Implication on Primate Welfare”
13.10. – 17.10.2008 at the German Primate Centre in Göttingen
2007"Evolution of Enrichment at Ape house Zoo Frankfurt, Germany", C. Knott & V. Behringer
8. International „Environmental Enrichment“ Conference, 5.-10. August 2007, Vienna, Austria
2006"Primatenschatzkisten – Ideen zur Beschäftigung von Menschenaffen" (Treasure chests for primates – Ideas to enriching the life of great apes), V. Behringer
9. Primate Caretaker Meeting Schönbrunn, Vienna, Austria, 27.-29. October 2006

Poster

2015 “Measuring urinary neopterin level variation as a health status indicator in bonobos and chimpanzees” Behringer, V. & Deschenr, T Conference “Non-invasive Monitoring of Hormones” (ISWE 2015), 12. – 14. October 2015, Berlin, Germany

“Indication of heterochrony in development of bonobos and chimpanzees from age-related changes in one thyroid hormone” Behringer, V.; Deschner, T.; Murtagh, R.; Stevens, J.M.G.; Hohmann, G. 14th Conference of the Gesellschaft fuer Primatologie, Leipzig, Germany
2011"Stress affects salivary alpha-Amylase activity in bonobos"
Behringer, V.; Deschner, T; Möstl, E.; Selzer, D.; Hohmann, G. 8th Internationale Conference on behaviour, physiology and genetics of wildlife, 14.-17. September 2011, Berlin
2009"Cortisol and cortisone measurement in Great Apes’ (Gorilla gorilla, Pan paniscus and Pongo abelii) saliva – one hydrogen atom makes a big difference!"
Behringer, V; Clauss, W; Hachenburger, K; Kuchar, A; Möstl, E; Selzer, D.
3rd International Congress European Federation of Primatologists, 12.-15. August 2009, Zürich, Switzerland
Financial support: European Federation for Primatology

"Stress research in three great ape species (Gorilla g. gorilla, Pan paniscus and Pongo abelii)"
Behringer, V; Hachenburger, K; Knott, K; Kuchar, A; Möstl, E; Selzer, D.
11th Conference of the Association of Primatology, 24. – 26. February 2009, Hannover

"Eine Geburt ist für die ganze Bonobogruppe ein aufregendes Ereignis" (Giving birth is for the hole Bonobogroup a amazing event)
Behringer, V; Clauß, W; Hachenburger, K; Kuchar, A; Selzer, D; Möstl, E.
New-Year Conference 2009 University of veterinary medicine Vienna, Austria
  • Poster award
2007"A bulimic Bonobo? Observation of an eating disorder of a Bonobo (Pan paniscus) at Frankfurt Zoo" Behringer, V; Selzer, D.
Doctorate programme of German Zoological Society
(DZG)-Professional group Behavior Biology, Göttingen, German Primate Center and University Göttingen, 17.02.-18.02.2007
2006"Influence of an environmental enrichment feeding devices on the behaviour of Great Apes at Frankfurt Zoo"
Behringer, V; Mühl, T; Zöllmann, M; Brandt, H; Clauß, W; Selzer, D.
99. German Zoological Society (DZG) Conference, Münster, 16.09.- 20.09.2006