Lehtonen, Topi K. 2008. "Convict cichlids benefit from close proximity to another species of cichlid fish". Bioogy Letters. 4(6):610-612. DOI: 10.1098/rsbl.2008.0378 (crc01834) (streszczenie)
Lehtonen, Topi K & B.B.M. Wong, P.A. Svensson, A. Meyer. 2010. "Adjustment of brood care behaviour in the absence of a mate in two species of Nicaraguan crater lake cichlids". Behavioral Ecology and Sociobiology. 65(4):613-619. DOI: 10.1007/s00265-010-1062-5 (crc03887) (streszczenie)
Lehtonen, Topi K & B.B.M Wong, K. Lindström, A. Meyer. 2010. "Species divergence and seasonal succession in rates of mate desertion in closely related Neotropical cichlid fishes". Behavioral Ecology and Sociobiology. 65(4):607-612. DOI: 10.1007/s00265-010-1061-6 (crc03888) (streszczenie)
Lehtonen, Topi K & J.K. McCrary, A. Meyer. 2010. "Territorial aggression can be sensitive to the status of heterospecific intruders". Behavioural Processes. 84(2):598-601. DOI: 10.1016/j.beproc.2010.02.021 (crc05257) (streszczenie)
Lehtonen, Topi K & Axel Meyer. 2011. "Heritability and adaptive significance of the number of egg-dummies in the cichlid fish Astatotilapia burtoni". Proceedings of the Royal Society of London B. 278(1716):2318-2324. DOI: 10.1098/rspb.2010.2483 (crc05256) (streszczenie)
Lehtonen, Topi K & J.K. McCrary, A. Meyer. 2012. "Introduced Predator Elicits Deficient Brood Defence Behaviour in a Crater Lake Fish". Plos One. 7(1):e30064. DOI: 10.1371/journal.pone.0030064 (crc04136) (streszczenie)
Lehtonen, Topi K & W. Sowersby, B.B.M. Wong. 2015. "Heterospecific aggression bias towards a rarer colour morph". Proceedings of the Royal Society of London B. 282(1551):1-7. DOI: 10.1098/rspb.2015.1551 (crc06981) (streszczenie)
Lehtonen, Topi K & K. Gagnon, W. Sowersby, B.B.M. Wong. 2016. "Allopatry, competitor recognition and heterospecific aggression in crater lake cichlids". BMC Evolutionary Biology. 16(3):1-7. DOI: 10.1186/s12862-015-0569-9 (crc07060) (streszczenie)
Lehtonen, Topi K & K.R. Elmer, M. Lappalainen, A. Meyer. 2018. "Genetic evidence for panmixia in a colony-breeding crater lake cichlid fish". Scientific Reports. 8(1166):1-8. DOI: 10.1038/s41598-018-19266-5 (crc08392) (streszczenie)