2003

Jäckel M, Trillmich F 2003. Olfactory individual recognition of mothers by young guinea pigs (Cavia porcellus). Ethology 109: 197-208

Laurien-Kehnen C, Trillmich F 2003. Lactation performance of guinea pigs (Cavia porcellus) does not respond to experimental manipulation of pup demands. Behav. Ecol. Sociobiol. 53: 145-152

Kraus C, Künkele J, Trillmich F 2003. Spacing behaviour and its implications for the mating system of a small precocial mammal: an almost asocial cavy (Cavia magna)? Anim. Behav. 66: 225-238

Trillmich F, Bieneck M, Geißler E, Bischof H.-J. 2003. Ontogeny of running performance in the wild guinea pig (Cavia aperea). Mammalian Biology 68: 214-223

Schuster P, Stichweh R, Schmidt J, Trillmich F, Guichard M, Schlee G 2003. Freundschaft und Verwandtschaft als Gegenstand interdisziplinärer Forschung. Einleitung zum Themenschwerpunkt. Sozialer Sinn. Zeitschrift für hermeneutische Forschung 1: 3-20

Faßbender M, Trillmich F, Fritsch G, Cromarty L, Göritz F, Hildebrandt TB 2003. The guinea pig as model for high resolution ultrasound in small exotic mammals. Verhandlungs-berichte Erkrankungen Zootiere 41: 273 – 278

Trillmich F 2003. Die Evolution der Brutpflege. Biologen heute 470, 6_2003: 2-9

2004

Laurien-Kehnen C, Trillmich F 2004. Maternal food restriction delays weaning in the guinea pig (Cavia porcellus). Animal Behaviour 68: 303-312

Rassmann K, Markmann M, Trillmich F, Tautz D 2004. Tracing the Evolution of the Galápagos Iguanas: A Molecular Approach. pp 71-83. In: Iguanas. Biology and Conservation (Alberts AC, Carter RL, Hayes WK, Martins EP eds.). University of California Press, Berkeley

Trillmich F, Kraus C, Künkele J, Asher M, Clara M, Dekomien G, Epplen JT, Saralegui A, Sachser N 2004. Species-level differentiation of two cryptic species pairs of wild cavies, genera Cavia and Galea, with a discussion of the relationship between social systems and phylogeny in the Caviinae. Canadian Journal Zoology 82: 516-524

2005

Kasparian K, Geißler E, Trillmich F 2005. Optimal offspring size in a small mammal: an exception to the tradoff invariant life-history rule. Oikos 111:271-278

Kraus C, Thomson DL, Künkele J, Trillmich F 2005. Living slow and dying young? Life-history strategy and age-specific survival rates in a precocial small mammal. J Anim. Ecol. 74: 171-180

Künkele J, Kraus C, Trillmich F 2005 Does the unusual life history of the cavy (Cavia magna) translate into an unusual field metabolic rate? Physiol. & Biochem. Zoology 78: 48-54

Kraus C, Trillmich F, Künkele J 2005. Reproduction and growth in a precocial small mammal, Cavia magna. J. Mammal. 86: 763-772

Pilorz V, Jäckel M, Knudsen K, Trillmich F 2005. The cost of a specific immune response in young guinea pigs. Physiology & Behavior 85: 205-211

Wolf J, Kauermann G, Trillmich F 2005. Males in the shade: habitat choice and sexual segregation in the Galápagos sea lion (Zalophus californianus wollebaeki). Behavioral Ecology and Sociobiology 59: 293-302

2006

Krause T, Naguib M, Trillmich F, Schrader L 2006. The effects of short term enrichment on learning in chickens from a laying strain (Gallus gallus domesticus). Applied Animal Behaviour Science 101: 318-327

Trillmich F, Laurien-Kehnen C, Adrian A, Linke S 2006. Age at maturity in cavies and guinea pigs (Cavia aperea and Cavia aperea f. porcellus): influence of social factors. Journal of Zoology, London 268: 285-294

Trillmich F, Wikelski M 2006. Indirekte Tierbeobachtung mit elektronischen Instrumenten: Biotelemetrie. pp. 175-179. In: Naguib M, Methoden der Verhaltensforschung. Springer Verlag, Heidelberg

Trillmich F, Rehling A 2006. Animal Communication: Parent-Offspring. In: Encyclopedia of Language and Linguistics Vol. 2, 2^nd edition. K. Brown (ed) pp. 284-288. Elsevier, Amsterdam

Trillmich F, Weissing FJ 2006. Lactation patterns of pinnipeds are not explained by optimization of maternal energy delivery rates. Behav. Ecol. Sociobiol. 60:137-149

2007

Fey K, Trillmich F 2007. Sibling competition in guinea pigs (Cavia aperea f. porcellus): scrambling for mother's teats is stressful. Behav Ecol Sociobiol, Special issue on sibling conflict in mammals

Hudson R, Trillmich F 2007. Sibling competition and cooperation in mammals: Challenges, developments and prospects. Behav Ecol Sociobiol, Special issue on sibling conflict in mammals

Kober M, Trillmich F, Naguib M (2007) Vocal mother-pup communication in guinea pigs: effects of call familiarity and female reproductive state. Animal Behaviour . in press

Rehling A, Trillmich F 2007. Weaning in the guinea pig (Cavia aperea f. porcellus): who decides and by what measure? Behav Ecol Sociobiol

Schmidt JFK, Guichard M, Schuster P, Trillmich F (Hrsg) 2007. Freundschaft und Verwandtschaft. Zur Unterscheidung und Verflechtung zweier Beziehungssysteme. Universitätsverlag Konstanz

Trillmich F 2007. Ultimate und proximate Fragen zu Verwandtschaft und Freundschaft bei Tieren. In: Schmidt JFK, Guichard M, Schuster P, Trillmich F (Hrsg) 2007. Freundschaft und Verwandtschaft. Zur Unterscheidung und Verflechtung zweier Beziehungssysteme. Universitätsverlag Konstanz

Trillmich F, Sötemann C, Clara M 2007. Age at maturity in cavies: Are precocial mammals different? Ecoscience

Trillmich F, Wolf JBW 2007. Parent-offspring and sibling conflict in Galápagos fur seals and sea lions. Behav Ecol Sociobiol, Special issue on sibling conflict in mammals

Wolf JBW, Trillmich F 2007. Fine-scale site fidelity in a breeding colony of the Galápagos sea lion (Zalophus californianus wollebaeki): a prerequisite for social networking? Oecologia152: 553-567