E. Tobias Krause



Golüke S., Bischof HJ., Caspers BA. Nestling odour modulates behavioural response in male, but not in female zebra finches. Sci Rep11, 712 (2021).


Moran NP, Caspers BA, Chakarov N, Ernst U, Fricke C, Kurtz J, Lilie ND, Lo L.-K, Müller C, Takola E, Trimmer PC,  van Benthem KJ, Reshma R, Winternitz J, Wittmann MJ, Shifts between cooperation and antagonism driven by individual variation: A systematic synthesis review. EcoEvoRxiv

Herr T, Gamain J, Fleischmann R , Lehnert B, Vollmer M, Willert C, Veit B, Stenner A, Mueller J.-U., Caspers B, Kronenbuerger M (2020) Olfaction as a Marker for Dystonia: Background, Current State and Directions. Brain Sciences 10: 727

Engel, K., Pankoke, H., Jünemann, S., Brandl H, Sauer J, Griffith SC, Kalinowski J, Caspers BA (2020) Family matters: skin microbiome reflects the social group and spatial proximity in wild zebra finches. BMC Ecol 20, 58.

Hahn LG, Oswald LG, Caspers BA: Behavioural responses to chemical cues of predators differ between fire salamander larvae from two different habitats bioRxiv 

J Tebbe J, Humble E, Stoffel MA, Tewes LJ, Mueller C, Forcada J, Caspers BA, Hoffman JI.Chemical patterns of colony membership and mother-offspring similarity in Antarctic fur seals are reproducible over time. PeerJ 8:e10131

Müller C, Caspers BA, Gadau J, Kaiser S (2020): The Power of Infochemical in Mediating Individualized Niches. Trends in Ecology & Evolution.

Oswald, P,  Tunnat B, Hahn L, Caspers BA (2020): There’s no place like home: Larval habitat type and size affect risk-taking behaviour in fire salamander larvae (Salamandra salamandra).  Ethology 126:914–921

Caspers BA, Krause ET, Hermanski I,  Wiesbrock C, Kastrup F-W, Steinfartz S (2020) Developmental costs of yellow coloration in fire salamanders and experiments to test the efficiency of yellow as a warning colouration. Amphibia-Reptilia 1:1-13


Golüke S, Bischof, HJ, Engelmann J, Caspers BA*, Mayer U* (2019). Social Odour Activates the Hippocampal Formation in Zebra Finches (Taeniopygia Guttata). Behavioral Brain Research 364:41-49    * joint last authorship

Grosser S, Sauer J, Paijmans AJ, Caspers BA, Forcada J, Wolf JB, Hoffman JI (2019). Fur seal microbiota are shaped by the social and physical environment, show mother‐offspring similarities and are associated with host genetic quality. Molecular ecology.

Wilkinson GS, Carter GG, Bohn KM, Caspers B, Chaverri G, Farine D, Günther L, Kerth G, Knörnschild M, Mayer F, Nagy M, Ortega J, Patriquin K (2019) Kinship, association and social complexity in bats. Behavioral Ecology and Sociobiology. 73,7


Krause ET, Caspers BA (2018) Do Diamond Firetails (Stagonopleura guttata) recognise the scent of their nest as other Estrildid finches do? EMU , 375-380  doi: 10.1080/01584197.2018.1459727

Maraci O, Engel K, Caspers BA (2018) Olfactory Communication via Microbiota: What Is Known in Birds? Genes 9, 387: doi:10.3390/genes9080387  link

Engel K, Sauer J, Jünemann S, Winkler A, Wibberg D, Kalinowski J, Tauch A, Caspers BA (2018). Individual- and species-specific skin microbiomes in three different estrildid finch species revealed by 16S amplicon sequencing. Microbial Ecology 76, 518–529

Sanchez E, Gippner S, Vences M, Preißler K,  Hermanski IJ, Caspers BA, Krause ET, Steinfartz S, Kastrup FW (2018) Automatic quantification of colour proportions in dorsal black-and-yellow coloured amphibians, tested on the fire salamander (Salamandra salamandra). Herpetology Notes 11: 73-76

Krause ET, Bischof H-J, Engel K, Golüke S, Maraci O, Mayer U, Sauer J, Caspers BA (2018) Olfaction in the Zebra Finch (Taeniopygia guttata): What Is Known and Further Perspectives. Advances in the Study of Behavior, 50:37-86, link


Caspers BA, Hagelin JC, Paul M, Willeke S, Bock S, Krause ET (2017) Zebra Finch chicks recognise parental scent, and retain chemosensory knowledge of their genetic mother, even after egg cross-fostering. Scientific Reports 7:12859  link

Cuthill IC, Allen WL, Arbuckle K, Caspers B, Chaplin G, Hauber ME, Hill GE, Jablonski NG, Jigging CD, Kelber A, Mappes J, Marshall J, Merrill R,  Osorio D, Prum R, Roberts NW, Roulin A, Rowland HM, Sherratt TN, Skelhorn J, Speed MP, Stevens M, Stoddard MC, Stuart-Fox D, Talas L, Tibbetts E, Caro T (2017) The biology of color. Science, 357(6350), eaan0221.

Golüke S, Caspers BA (2017): Sex specific differences in preen gland size of zebra finches during the course of breeding. The Auk. 134 (4)  821- 831

Rossi M, Marfull R, Golüke S, Komdeur J, Korsten P, Caspers BA (2017): Begging blue tit nestlings discriminate between the odour of familiar and unfamiliar conspecifics. Functional Ecology 31:1761-1769; DOI 10.1111/1365-2435.12886

Griffith SC, Crino OL, Adkins-Regan E, Alonso-Alvarez C, Andrew SC, Bailey IE, Bittner S S, Bolton PE, Boner W, Boogert N, Boucaud ICA, Briga M, Buchanan KL, Caspers BA, Cichoń M, Clayton DF, Derégnaucourt S, Forstmeier W, Guillette L, Hartley IR, Healy SD, Hill DL, Holveck MJ, Hurley LL, Ihle M, Krause ET, Mainwaring MC, Marasco V, Mariette MM, Martin-Wintle MS, McCowan LSC, McMahon M, Monaghan P, Nager RG, Naguib M, Nomano FY, Nord A, Potvin DA, Prior NH, Riebel K, Romero-Haro AA, Royle NJ, Rutkowska J, Schuett W, Swaddle JP, Tobler M, Trompf L, Varian-Ramos CW, Verhulst S, Vignal C, Villain AS, Williams TD (2017) Variation in reproductive success accross captive populations: Methodological difference, potential biases and opportunities. Ethology 123:1-29 link


Krause ET, Schrader L, Caspers BA (2016) Olfaction in chicken (Gallus gallus): A neglected mode of social communication? Frontiers in Ecology and Evolution 4:94 doi: 10.3389/fevo.2016.00094 link

Schneeberger K, Voigt CC, Müller C, Caspers BA (2016) Multidimensionality of chemical information in male greater sac-winged bats (Saccopteryx bilineata). Frontiers in Ecology and Evolution 4:83 doi: 10.3389/fevo.2016.00083 link

Golüke S, Dörrenberg S, Krause ET, Caspers BA (2016) Female zebra finches smell their eggs. PLOS ONE PDF

Krause ET, Caspers BA (2016) Long-term consequences of early nutritional conditions on the behaviour and growth of fire salamanders. Amphibia-Reptilia 37: 69-77

Kohlwey S, Krause ET, Baier MC, Müller C, Caspers BA (2016) Chemical Analyses Reveal Family Specific Nest Odor Profiles in Zebra Finches (Taeniopygia guttata): A Pilot Study. In: Chemical Signals in Vertebrates 13

Krause ET, Kabbert J, Caspers BA (2016) Exploring the use of olfactory cues in non-social context in zebra finches (Taeniopygia guttata). In: Chemical Signals in Vertebrates 13


Caspers BA, Gagliardo A, Krause ET (2015) Impact of kin odour on reproduction in zebra finches. Behavioral Ecology and Sociobiology 69:1827-1833 DOI 10.1007/s00265-015-1995-9

Stoffel M, Caspers BA, Forcada J, Giannakara A, Baier MC, Eberhart-Phillips LJ, Müller C. & Hoffman JI (2015) Chemical fingerprints encode mother-offspring similarity, colony membership, relatedness and genetic quality in fur seals. Proceedings of the National Academy of Sciences of the United States of America  PDF

Caspers BA, Hagelin J, Bock S, Krause ET (2015) An easy method to test odour recognition in songbird hatchlings. Ethology 121:882-887

Caspers BA, Steinfartz S, Krause ET (2015) Larval deposition behaviour and maternal investment of females reflect differential habitat adaptation in a genetically diverging salamander population. Behavioral Ecology and Sociobiology 69:407-413 DOI10.1007/s00265-014-1853-1

Krause ET, Caspers BA (2015) The influence of a water current on the larval deposition pattern of females of a diverging fire salamander population (Salamandra salamandra). Salamandra 51(2):156–160


Krause ET, Brummel C, Kohlwey S, Baier MC, Müller C, Bonadonna F, Caspers BA (2014) Differences in olfactory species recognition in the females of two Australian songbird species. Behavioral Ecology and Sociobiology 68:1819-1827

Caspers BA, Krause ET, Hendrix R, Kopp M, Rupp O, Rosentreter K, Steinfartz S (2014) The more the better – polyandry and genetic similarity are positively linked to reproductive success in a natural population of terrestrial salamanders (Salamandra salamandra). Molecular Ecology 23:239-250

Ibanez A, Caspers BA, Lopez P, Martin J, Krause ET (2014) Is the reaction to chemical cues of predators affected by age or experience in fire salamanders (Salamandra salamandra)? Amphibia-Reptilia 35:189-196


Krause, E.T., v Engelhardt, N., Steinfartz, S., Trosien, R., & Caspers, B.A. (2013): Ultrasonography as a minimally invasive method to assess pregnancy in the fire salamanders (Salamandra salamandra). Salamandra 49:211-214

Caspers, B.A., Hoffmann, J.I., Kohlmeier, P., Krüger, O. & Krause, E.T. (2013): Olfactory imprinting as a mechanism for nest recognition in zebra finches. Animal Behaviour 86: 85-90

Caspers, BA. & Krause, E.T. (2013): Intraspecific olfactory communication in Zebra Finches (Taeniopygia guttata) – Potential information apart from visual and acoustic cues. In Chemical Signals of Vertebrates XII. (Marioan East & Martin Dehnhard eds.). Springer Verlag, Berlin, Germany


Krause, E.T., Caspers, B.A. (2012): Are olfactory cues involved in nest recognition in two species of social estrildid finches? PloS One 7(5): e36615 doi:10.1371/journal.pone.0036615

Krause, E.T., Krüger, O., Kohlmeier, P., & Caspers, B.A. (2012): Olfactory kin recognition in a songbird. Biology letters 8: 327-329 doi:10.1098/rsbl.2011.1093
Top ten cited article 2012 of Biol Lett


Caspers, B.A., & Steinfartz, S. (2011): Preference for the other sex: Olfactory sex recognition in terrestrial fire salamanders (Salamandra salamandra). Amphibia-Reptilia 32:503-508

Eccard J.A., Fey K., Caspers B.A., & Ylönen H. (2011): Breeding state and season affect interspecific interaction types: indirect resource competition and direct interference. Oecologia 167:623–633

Caspers, B.A., Schroeder, F., Franke, S., & Voigt, C.C. (2011): The scent of adolescence: The maturation of the olfactory phenotype in a free ranging mammal. PLoS One 6:6

Krause, E.T., Steinfartz, S., & Caspers, B.A. (2011): Poor-nutritional conditions during the early larval stage reduce risk taking activities of fire salamander larvae (Salamandra salamandra). Ethology 117:416-421

Caspers, B.A, & Krause, E.T. (2011): “Odour-based natal nest recognition in the zebra finch (Taeniopygia guttata), a colony-breeding songbird”. Biology letters 7:184-186
Top ten cited article 2011 of Biol Lett & evaluated by F1000

2009 and earlier

Caspers, B.A & Voigt, C.C. (2009): Temporal and Spatial Distribution of Male Scent Marks in the Polygynous Greater Sac-Winged Bat. Ethology 115:713-720

Caspers, B., Junge, C., Weitere, M., & Steinfartz, S. (2009): Habitat adaptation rather than genetic distance correlates with female preference in fire salamanders (Salamandra salamandra). Frontiers in Zoology 6:13

Caspers, B.A, Schroeder, F.C., Franke, S., Streich, J.W., & Voigt, C.C. (2009): Odour based species recognition in two sympatric species of sac-winged bats (S. bilineata, S. leptura): Combining chemical analysis and odour preference tests. Behav. Ecol. Sociobiol. . 63: 741-749

Caspers. B., Wibbelt, G., & Voigt, C.C. (2009): Histological examinations of facial glands in the greater sac-winged bat Saccopteryx bilineata (Chiroptera, Emballonuridae), and its potential use in territory marking. Zoomorphology 128:37-43

Voigt, C.C., Behr, O., Caspers, B., Helversen von, O., Knörnschild, M., Mayer, F., & Nagy, M. (2008) Songs, Scents, and Senses: Sexual Selection in the greater sac-winged bat, Saccopteryx bilineata. J. Mammal. 98:1401-1410

Caspers, B., Franke, S., & Voigt, C.C. (2008): The wing-sac odour of male greater sac-winged bats Saccopteryx bilineata (Emballonuridae) as a composite signal. Pp. 151-160 In Chemical Signals of Vertebrates XI. (J. Hurst, R.J. Beynon, S.C. Roberts, and T.D. Wyatt eds.). Springer Verlag, Berlin, Germany

Hoffmann, F.F., Hejduk, J., Caspers, B., Siemers, B. & Voigt C.C. (2007) In the mating system of the bat Saccopteryx bilineata (Chiroptera; Emballonuridae) bioacoustic constraints impede male eavesdropping on female echolocation calls for their surveillance. Can. J. Zool. 85:863-872

Witte, K. & Caspers, B. (2006): Sexual Imprinting on a novel blue ornament in the zebra finch. Behaviour 143: 969-991

Voigt, C.C., Caspers, B. & Speck, S. (2005): Bats, Bacteria and Bat Smell: Sex-Specific Diversity of Microbes in a Sexually Selected Scent Organ. J. Mammal. 86:745-749