Niclas Kolm

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Niclas Kolm

Professor

Contact

Division:
Zoologiska institutionen: Etologi
Phone:
+46 8 16 40 50
Email:
niclas.kolm@zoologi.su.se
ORCID iD:
orcid.org/0000-0001-5791-336X
Fax:
+46 8 15 95 22
Visiting address:
Svante Arrheniusväg 18 B
Room:
D 513
Postal address:
Stockholm University
Zoologiska institutionen: Etologi
106 91 Stockholm
Responsibilities:
Ansvarig, Zoologiska institutionen: Etologi

Research interests

I am an evolutionary biologist with broad interests in life histories, sexual selection, speciation, and animal behavior. My main interest lie in brain evolution and the link between variation in brain morphology and behaviour. I study this in a variety of taxa (Cichlids, Pipefishes and Seahorses, Birds, Pinnipeds, Cetaceans, Salmonids, Poeciliids) using phylogenetic comparative analysis and laboratory experiments.

Currently, most of the work in my group builds on two systems:

1. PHYLOGENETIC COMPARATIVE ANALYSES IN CICHLIDS AND PIPEFISHES & SEAHORSES

We have a database with data on brain morphology, behaviour, life history, mating system, parasites, various aspects of ecology etc for ca 70 species of Lake Tanganyika cichlids and a recently collected similar database for pipefishes and seahorses. We use these databases to perform phylogenetic comparative analyses to test various hypotheses in a macroevolutionary framework.

2. ARTIFICIAL SELECTION AND EXPERIMENTAL ASSAYS OF HOW BRAIN MORPHOLOGY VARIATION AFFECTS PHYSIOLOGY AND BEHAVIOUR IN THE GUPPY

We use our recently developed guppy selection lines with 14 % difference in brain size to perform experimental tests of several hypotheses concerning brain evolution and the link between brain morphology and physiology and behaviour. For this work, we have over 250 m2 of lab space with room for >4000 aquaria and six separate rooms for behavioural assays.

Information on our 2.7 M Euro Knut and Alice Wallenberg Foundation project on sociality and the brain: Linking social behavior to the brain

CURRENT GROUP:

Postdoctoral Researchers

Alexander Kotrschal
Séverine Büchel
James Herbert-Read aka Teddy (Teddy's main supervisor is David Sumpter at the mathematics department Uppsala University


PhD-students

Stephanie Fong
Alberto Corral Lopez
Wouter van der Bijl

ResearchGate Website: Kolm ResearchGate

Google Scholar Page: Kolm GoogleScholar

MASTERS PROJECTS

We have several available projects on the link between brain size and behavior in guppies that would be suitable as Exams/Masters projects. Just send me an email if you are interested.

RECENT PUBLICATIONS

See a (not quite) complete publication list further down with links to the papers.

2017

Alexander Kotrschal, Hong-Li Zeng, Wouter van der Bijl, Caroline Oehman-Mägi, Kurt Kotrschal, Kristiaan Pelckmans & Niclas Kolm. In Press. Evolution of brain region volumes during artificial selection for relative brain size. Evolution.

James E Herbert-Read, Emil Rosén, Alex Szorkovszky, Christos C Ioannou, Björn Rogell, Andrea Perna, Indar W Ramnarine, Alexander Kotrschal, Niclas Kolm, Jens Krause, David JT Sumpter. 2017. How predation shapes the social interaction rules of shoaling fish. Proc. R. Soc. B Biol. 284 (1861), 20171126.

Kotrschal A, Deacon A, Magurran A, Kolm N. 2017. Predation pressure shapes brain anatomy in the wild. In Press. Evolutionary Ecology, Volume 31, Issue 5, pp 619–633.

Szorkovsky A, Kotrschal A, Herbert-Read J, Sumpter D, Kolm N, Pelckmans K. 2017. An efficient method for sorting and quantifying individual social traits based on group-level behaviour. Methods in Ecology and Evolution, 2017;1–10.

Corral Lopez A, Bloch NI, Kotrschal A, van der Bijl W, Buechel SD, Mank JE & Kolm N. 2017. Female brain size affects the assessment of male attractiveness during mate choice. Science Advances, Vol. 3, no. 3, e1601990.

Hayward A, Tsuboi M, Owusu C, Kotrschal A, Buechel SD, Zidar J, Cornwallis CK, Lövlie H & Kolm N. Evolutionary associations between host traits and parasite load: insights from Lake Tanganyika cichlids. In Press. Journal of Evolutionary Biology.

Wright A, Darolti I, Bloch N, Oostra V, Sandlam B, Buechel S, Kolm N, Breden F, Vicoso B & Mank J. 2017. Convergent recombination suppression suggest a role of sexual selection in guppy sex chromosome formation. Nature Communications 8, 14251 doi: 10.1038/ncomms14251.

Tsuboi M, Lim ACO, Ooi BL, Yip MY, Chong VC, Ahnesjö I & Kolm N. 2017. Brain size evolution in pipefishes and seahorses: the role of feeding ecology, life history and sexual selection. Journal of Evolutionary Biology, 30, 150-160. doi: 10.1111/jeb.1299

2016

Buechel S, Booksmythe B, Kotrschal A, Jennions M & Kolm N. 2016. Artificial selection on male genitalia length alters female brain size. Proc. R. Soc. B Biol. Sci. 283: 20161796.

Tsuboi M, Kotrschal A, Hayward A, Buechel S, Zidar J, Lövlie H & Kolm N. 2016. Evolution of brain-body allometry in Lake Tanganyika cichlids. Evolution, 70-7, 1559-1568.

van der Bijl W & Kolm N. 2016. Why direct effects of predation complicate the social brain hypothesis. BioEssays, 38.

Kotrschal A, Kolm N & Penn D. 2016. Selection for brain size impairs innate, but not adaptive immune responses. Proc. R. Soc. B Biol. Sci. 283: 20152857.

Tsuboi M, Shoji J, Sogabe A, Ahnesjö I and Kolm N. 2016. Within species support for the expensive tissue hypothesis: a negative association between brain size and visceral fat storage in females of a Pacific seaweed pipefish. Ecology & Evolution, 6 (3): 647-655.

2015

Kotrschal A, Corral-Lopez A, Szidat S & Kolm N. 2015. The effect of brain size evolution on feeding propensity, digestive efficiency and juvenile growth. Evolution, 69 (11): 3013–3020.

Van der Bijl W, Thyselius M, Kotrschal A & Kolm N. 2015. Brain size affects the behavioral response to predators in female guppies (Poecilia reticulata).
Proc. R. Soc. B Biol. Sci., 282: 20151132.

Chen Y*, Harrison P*, Kotrschal A*, Kolm N**^, Mank JE** & Panula P**. 2015. Expression change in Angiopoietin-1 underlies change in relative brain size in fish.
* shared first authorship. ** shared senior authorship. ^ corresponding author.
Proc. R. Soc. B Biol. Sci., 282 (1810), 20150872.

Kotrschal A, Büchel S, Zala S, Corral-Lopez A, Penn D & Kolm N. 2015. Brain size affects female but not male survival under predation threat. Ecology Letters, 18: 646-652.

Amcoff M & Kolm N. 2015. Multiple male sexual signals and female responsiveness in the swordtail characin, Corynopoma riisei. Environmental Biology of Fishes, 98: 1731-1740.

Kotrschal A, Corral Lopez A, Zajitschek S, Immler S, Maklakov AA & Kolm N. 2015. Positive genetic correlation between brain size and sexual traits in male guppies artificially selected for brain size. Journal of Evolutionary Biology, 28 (4): 841-850.

Tsuboi M, Gonzalez-Voyer A & Kolm N. 2015. Functional coupling constrains craniofacial diversification in Lake Tanganyika cichlids. Biology Letters, 11: 20141053.
http://dx.doi.org/10.1098/rsbl.2014.1053

Corral Lopez A, Eckerström Liedholm S, van der Bijl W, Kotrschal A & Kolm N. 2015. No association between brain size and male sexual behavior in the guppy. Current Zoology, 61 (2): 265-273.

Tsuboi M, Husby A, Kotrschal A, Hayward A, Büchel S, Zidar J, Lövlie H & Kolm N. 2015. Comparative support for the expensive tissue hypothesis: big brains are correlated with smaller gut and greater parental investment in Lake Tanganyika cichlids. Evolution, 69-1: 190–200.

2014

Kotrschal A, Corral Lopez A, Amcoff M & Kolm N. 2014. A larger brain confers a benefit in a spatial mate search learning task in male guppies. Behavioral Ecology, 00(00), 1–6. doi:10.1093/beheco/aru227

Kolm N. 2014. Invited commentary: Measuring variation in cognition can be done, but it requires hard empirical work: a comment on Rowe and Healy. Behavioral Ecology, 1-2. doi:10.1093/beheco/aru127

Kotrschal A, Trombley S, Rogell B, Brännström I, Foconi E, Schmitz M & Kolm N. 2014. The mating brain: early maturing males maintain investment into the brain also under fast body growth in Atlantic salmon (Salmo salar). Evolutionary Ecology. doi:10.​1007/​s10682-014-9715-x

Kotrschal A*, Lievens EJP*, Dahlbom J, Bundsen A, Semenova S, Sundvik M, Maklakov AA, Winberg S, Panula P & Kolm N. 2014. Artificial selection on relative brain size reveals a positive genetic correlation between brain size and proactive personality in the guppy. Evolution, 68 (4): 1139-1149. *Equal contribution.

Tsuboi M, Gonzalez-Voyer A, Kolm N. 2014. Phenotypic integration of brain size and head morphology in lake Tanganyika cichlids. BMC Evolutionary Biology, 14:39.

Amcoff M*, Hallsson L*, Winberg S & Kolm N. 2014. Male courtship pheromones affect female behaviour in the swordtail characin (Corynopoma riisei). Ethology, 120: 463-470.*Equal contribution.

Amcoff, M. and Kolm, N. 2014. A test of sensory exploitation in the swordtail characin (Corynopoma riisei) based on colour matching between female prey and a male ornament. Environmental Biology of Fishes, 97 (3), 247-254.

Publications

Refereed

Alison E. Wright, Iulia Darolti, Natasha I. Bloch, Vicencio Oostra, Ben Sandkam, Severine D. Buechel, Niclas Kolm, Felix Breden, Beatriz Vicoso, Judith E. Mank. 2017. Convergent recombination suppression suggests role of sexual selection in guppy sex chromosome formation. Nature Communications 8.

M. Tsuboi, A. C. O. Lim, B. L. Ooi, M. Y. Yip, V. C. Chong, I. Ahnesjö, Niclas Kolm. 2017. Brain size evolution in pipefishes and seahorses - the role of feeding ecology, life history and sexual selection. Journal of Evolutionary Biology 30: 150-160.

A. Hayward, M. Tsuboi, C. Owusu, Alexander Kotrschal, Severine D. Buechel, J. Zidar, C. K. Cornwallis, H. Lovlie, Niclas Kolm. 2017. Evolutionary associations between host traits and parasite load - insights from Lake Tanganyika cichlids. Journal of Evolutionary Biology 30: 1056-1067.

James E. Herbert-Read, Emil Rosén, Alex Szorkovszky, Christos C. Ioannou, Björn Rogell, Andrea Perna, Indar W. Ramnarine, Alexander Kotrschal, Niclas Kolm, Jens Krause, David J. T. Sumpter. 2017. How predation shapes the social interaction rules of shoaling fish. Proceedings of the Royal Society of London, Series B, Biological Sciences 284.

Alexander Kotrschal, Amy E. Deacon, Anne E. Magurran, Niclas Kolm. 2017. Predation pressure shapes brain anatomy in the wild. Evolutionary Ecology 31: 619-633.

Alberto Corral-López, Natasha I. Bloch, Alexander Kotrschal, Wouter van der Bijl, Severine D. Buechel, Judith E. Mank, Niclas Kolm. 2017. Female brain size affects the assessment of male attractiveness during mate choice. Science Advances 3.

Alexander Kotrschal, Niclas Kolm, Dustin J. Penn. 2016. Selection for brain size impairs innate, but not adaptive immune responses. Proceedings of the Royal Society of London, Series B, Biological Sciences 283.

Masahito Tsuboi, Jun Shoji, Atsushi Sogabe, Ingrid Ahnesjö, Niclas Kolm. 2016. Within species support for the expensive tissue hypothesis - a negative association between brain size and visceral fat storage in females of the Pacific seaweed pipefish. Ecology and Evolution 6: 647-655.

Masahito Tsuboi, Alexander Kotrschal, Alexander Hayward, Severine Denise Buechel, Josefina Zidar, Hanne Lovlie, Niclas Kolm. 2016. Evolution of brain-body allometry in Lake Tanganyika cichlids. Evolution 70: 1559-1568.

Wouter van der Bijl, Niclas Kolm. 2016. Why direct effects of predation complicate the social brain hypothesis And how incorporation of explicit proximate behavioral mechanisms might help. Bioessays 38: 568-577.

Séverine D. Buechel, Isobel Booksmythe, Alexander Kotrschal, Michael D. Jennions, Niclas Kolm. 2016. Artificial selection on male genitalia length alters female brain size. Proceedings of the Royal Society of London, Series B, Biological Sciences 283.

Alexander Kotrschal, Alberto Corral-Lopez, S. Zajitschek, S. Immler, A. A. Maklakov, Niclas Kolm. 2015. Positive genetic correlation between brain size and sexual traits in male guppies artificially selected for brain size. Journal of Evolutionary Biology 28: 841-850.

Alexander Kotrschal, Alberto Corral-Lopez, Mirjam Amcoff, Niclas Kolm. 2015. A larger brain confers a benefit in a spatial mate search learning task in male guppies. Behavioral Ecology 26: 527-532.

Masahito Tsuboi, Arild Husby, Alexander Kotrschal, Alexander Hayward, Severine D. Buechel, Josefina Zidar, Hanne Lovlie, Niclas Kolm. 2015. Comparative support for the expensive tissue hypothesis - Big brains are correlated with smaller gut and greater parental investment in Lake Tanganyika cichlids. Evolution 69: 190-200.

Alexander Kotrschal, Séverine D. Buechel, Sarah M. Zala, Alberto Corral Lopez, Dustin J. Penn, Niclas Kolm. 2015. Brain size affects female but not male survival under predation threat. Ecology Letters 18: 646-652.

Mirjam Amcoff, Niclas Kolm. 2015. Multiple male sexual signals and female responsiveness in the swordtail characin, Corynopoma riisei. Environmental Biology of Fishes 98: 1731-1740.

Yu-Chia Chen, Peter W. Harrison, Alexander Kotrschal, Niclas Kolm, Judith E. Mank, Pertti Panula. 2015. Expression change in Angiopoietin-1 underlies change in relative brain size in fish. Proceedings of the Royal Society of London, Series B, Biological Sciences 282.

Masahito Tsuboi, Alejandro Gonzalez-Voyer, Niclas Kolm. 2015. Functional coupling constrains craniofacial diversification in Lake Tanganyika cichlids. Biology Letters 11.

Wouter van der Bijl, Malin Thyselius, Alexander Kotrschal, Niclas Kolm. 2015. Brain size affects the behavioural response to predators in female guppies (Poecilia reticulata). Proceedings of the Royal Society of London, Series B, Biological Sciences 282: 116-124.

Alexander Kotrschal, Alberto Corral-Lopez, Soenke Szidat, Niclas Kolm. 2015. The effect of brain size evolution on feeding propensity, digestive efficiency, and juvenile growth. Evolution 69: 3013-3020.

Alberto Corral-López, Simon Eckerström-Liedholm, Wouter Van der Bijl, Alexander Kotrschal, Niclas Kolm. 2015. No association between brain size and male sexual behavior in the guppy. Current Zoology 61: 265-273.

Masahito Tsuboi, Alejandro Gonzalez-Voyer, Niclas Kolm. 2014. Phenotypic integration of brain size and head morphology in Lake Tanganyika Cichlids. BMC Evolutionary Biology 14: 39.

Alexander Kotrschal, Eva J. P. Lievens, Josefin Dahlbom, Andreas Bundsen, Svetlana Semenova, Maria Sundvik, Alexei A. Maklakov, Svante Winberg, Pertti Panula, Niclas Kolm. 2014. Artificial selection on relative brain size reveals a positive genetic correlation between brain size and proactive personality in the guppy. Evolution 68: 1139-1149.

Mirjam Amcoff, Lara R. Hallsson, Svante Winberg, Niclas Kolm. 2014. Male Courtship Pheromones Affect Female Behaviour in the Swordtail Characin (Corynopoma riisei). Ethology 120: 463-470.

Mirjam Amcoff, Niclas Kolm. 2014. A test of sensory exploitation in the swordtail characin (Corynopoma riisei) based on colour matchingbetween female prey and a male ornament. Environmental Biology of Fishes 97: 247-254.

Alexander Kotrschal, Susanne Trombley, Björn Rogell, Ioana Brännström, Eric Foconi, Monika Schmitz, Niclas Kolm. 2014. The mating brain - early maturing sneaker males maintain investment into the brain also under fast body growth in Atlantic salmon (Salmo salar). Evolutionary Ecology 28: 1043-1055.

Martyna K. Zwoinska, Niclas Kolm, Alexei A. Maklakov. 2013. Sex differences in cognitive ageing - Testing predictions derived from life-history theory in a dioecious nematode. Experimental Gerontology 48: 1469-1472.

Mirjam Amcoff, A. Gonzalez-Voyer, Niclas Kolm. 2013. Evolution of egg dummies in Tanganyikan cichlid fishes - the roles of parental care and sexual selection. Journal of Evolutionary Biology 26: 2369-2382.

Mirjam Amcoff, Niclas Kolm. 2013. Does female feeding motivation affect the response to a food-mimicking male ornament in the swordtail characin Corynopoma riisei? Journal of Fish Biology 83: 343-354.

Mirjam Amcoff, Charlotte Lindqvist, Niclas Kolm. 2013. Sensory exploitation and plasticity in female mate choice in the swordtail characin. Animal Behaviour 85: 891-898.

Alexander Kotrschal, Björn Rogell, Andreas Bundsen, Beatrice Svensson, Susanne Zajitschek, Ioana Onut Brännström, Simone Immler, Alexei A. Maklakov, Niclas Kolm. 2013. Artificial selection on relative brain size in the guppy reveals costs and benefits of evolving a larger brain. Current Biology 23: 168-171.

Alexei A. Maklakov, Simone Immler, Alejandro Gonzalez-Voyer, Johanna Rönn, Niclas Kolm. 2013. Brains and the city in passerine birds - re-analysis and confirmation of the original result. Biology Letters 9.

Alexander Kotrschal, Björn Rogell, Andreas Bundsen, Beatrice Svensson, Susanne Zajitschek, Ioana Brännström, Simone Immler, Alexei A. Maklakov, Niclas Kolm. 2013. The benefit of evolving a larger brain - big-brained guppies perform better in a cognitive task. Animal Behaviour 86: e4-e6.

Niclas Kolm, Mirjam Amcoff, Richard P. Mann, Göran Arnqvist. 2012. Diversification of a Food-Mimicking Male Ornament via Sensory Drive. Current Biology 22: 1440-1443.

Alexander Kotrschal, Katja Rasanen, Bjarni K. Kristjansson, Mike Senn, Niclas Kolm. 2012. Extreme Sexual Brain Size Dimorphism in Sticklebacks - A Consequence of the Cognitive Challenges of Sex and Parenting? PLoS ONE 7.

Alexander Kotrschal, Björn Rogell, Alexei A. Maklakov, Nichlas Kolm. 2012. Sex-specific plasticity in brain morphology depends on social environment of the guppy, Poecilia reticulata. Behavioral Ecology and Sociobiology 66: 1485-1492.

Alexander Kotrschal, L. Fredrik Sundström, D. Brelin, R. H. Devlin, Niclas Kolm. 2012. Inside the heads of David and Goliath - environmental effects on brain morphology among wild and growth-enhanced coho salmon Oncorhynchus kisutch. Journal of Fish Biology 81: 987-1002.

Masahito Tsuboi, Alejandro Gonzalez-Voyer, Jacob Höglund, Niclas Kolm. 2012. Ecology and mating competition influence sexual dimorphism in Tanganyikan cichlids. Evolutionary Ecology 26: 171-185.

J. L. Fitzpatrick, M. Almbro, A. Gonzalez-Voyer, S. Hamada, C. Pennington, J. Scanlan, Niclas Kolm. 2012. Sexual selection uncouples the evolution of brain and body size in pinnipeds. Journal of Evolutionary Biology 25: 1321-1330.

J. L. Fitzpatrick, M. Almbro, A. Gonzalez-Voyer, Niclas Kolm, L. W. Simmons. 2012. Male Contest Competition And The Coevolution Of Weaponry And Testes In Pinnipeds. Evolution 66: 3595-3604.

Alexei Maklakov, Simone Immler, Alejandro Gonzalez-Voyer, Johanna Rönn, Niclas Kolm. 2011. Brains and the city - big-brained passerine birds succeed in urban environments. Biology Letters 7: 730-732.

Niclas Kolm, Göran Arnqvist. 2011. Environmental correlates of diet in the swordtail characin (Corynopoma riisei, gill). Environmental Biology of Fishes 92: 159-166.

Alejandro Gonzalez-Voyer, Niclas Kolm. 2011. Rates of phenotypic evolution of ecological characters and sexual traits during the Tanganyikan cichlid adaptive radiation. Journal of Evolutionary Biology 24: 2378-2388.

Göran Arnqvist, Niclas Kolm. 2010. Population differentiation in the swordtail characin (Corynopoma riisei) - a role for sensory drive? Journal of Evolutionary Biology 23: 1907-1918.

Alejandro Gonzalez-Voyer, Niclas Kolm. 2010. Sex, Ecology and the Brain - Evolutionary Correlates of Brain Structure Volumes in Tanganyikan Cichlids. PLoS ONE 5: e14355.

Niclas Kolm, Alejandro Gonzalez-Voyer, Daniel Brelin, Svante Winberg. 2009. Evidence for small scale variation in the vertebrate brain: mating strategy and sex affect brain size and structure in wild brown trout (Salmo trutta). Journal of Evolutionary Biology 22: 2524-2531.

Alejandro Gonzalez-Voyer, Svante Winberg, Niclas Kolm. 2009. Brain structure evolution in a basal vertebrate clade: evidence from phylogenetic comparative analysis of cichlid fishes. BMC Evolutionary Biology 9: 238.

Alejandro Gonzalez-Voyer, Svante Winberg, Niclas Kolm. 2009. Social fishes and single mothers: brain evolution in African cichlids. Proceedings of the Royal Society of London, Series B, Biological Sciences 276: 161-167.

Alejandro Gonzalez-Voyer, Svante Winberg, Niclas Kolm. 2009. Distinct Evolutionary Patterns of Brain and Body Size During Adaptive Radiation. Evolution 63: 2266-2274.

Mirjam Amcoff, Göran Arnqvist, Niclas Kolm. 2009. Courtship signalling with a labile bilateral signal - males show their best side. Behavioral Ecology and Sociobiology 63: 1717-1725.

John L. Fitzpatrick, Robert Montgomerie, Julie K. Desjardins, Kelly A. Stiver, Niclas Kolm, Sigal Balshine. 2009. Female promiscuity promotes the evolution of faster sperm in cichlid fishes. Proceedings of the National Academy of Sciences of the United States of America 106: 1128-1132.

Alejandro Gonzalez-Voyer, John L. Fitzpatrick, Niclas Kolm. 2008. Sexual selection determines parental care patterns in cichlid fishes. Evolution 62: 2015-2026.

Brent C. Emerson, Niclas Kolm. 2007. Species diversity can drive speciation: reply. Ecology 88: 2135-2138.

J. Ridley, Niclas Kolm, R.P. Freckleton, M.J. Gage. 2007. An unexpected influence of widely used significance thresholds on the distribution of reported P-values. Journal of Evolutionary Biology 20: 1082-1089.

Niclas Kolm, R.W Stein, A. Mooers, J.J. Verspoor, J.A. Cunningham. 2007. Can sexual selection drive female life histories? - A comparative study on Galliform birds. Journal of Evolutionary Biology 20: 627-638.

Brent C. Emerson, Niclas Kolm. 2007. Response to comments on Species diversity can drive speciation. Ecography 30: 334-338.

N Kolm, NB Goodwin, S Balshine, JD Reynolds. 2006. Life history evolution in cichlids 2: directional evolution of the trade-off between egg number and egg size. Journal of Evolutionary Biology 19: 76-84.

N Kolm, NB Goodwin, S Balshine, JD Reynolds. 2006. Life history evolution in cichlids 1: Revisiting the evolution of life histories in relation to parental care. Journal of Evolutionary Biology 19: 66-75.

Niclas Kolm, Eric A. Hoffman, Jens Olsson, Anders Berglund. 2005. Group stability and homing behavior but no kin group sturcture in a coral reef fish. Behavioral Ecology 16: 521-527.

Niclas Kolm, Ingrid Ahnesjö. 2005. Do egg size and parental care coevolve in fish? Journal of Fish Biology 66: 1499-1515.

Eric A. Hoffman, Niclas Kolm, Anders Berglund, J. Roman Arquello, A dam G. Jones. 2005. Genetic structure in the coral-reef-associated Banggai cardinalfish, Pterapogon kauderni. Molecular Ecology 14: 1367-1375.

B. C. Emerson, Niclas Kolm. 2005. Ecology - Is speciation driven by species diversity? Reply. Nature 438: E2.

B. C. Emerson, Niclas Kolm. 2005. Species diversity can drive speciation. Nature 434: 1015-1017.

Niclas Kolm, Anders Berglund. 2004. Sex-specific territorial behaviour in the Banggai cardinalfish, Pterapogon kauderni. Environmental Biology of Fishes 70: 375-379.

Niclas Kolm. 2004. Female courtship in the Banggai cardinalfish - honest signals of egg maturity and reproductive output? Behavioral Ecology and Sociobiology 56: 59-64.

Eric A. Hoffman, J. Roman Arquello, Niclas Kolm, Anders Berglund, Adam G. Jones. 2004. Eleven polymorphic microsatellite loci in a coral reef fish, Pterapogon kauderni. Molecular Ecology Notes 4: 342-344.

Niclas Kolm, Anders Berglund. 2003. Wild Populations of a Reef Fish Suffer from the “Nondestructive” Aquarium Trade Fishery. Conservation Biology 17: 910-914.

Niclas Kolm, Jens Olsson. 2003. Differential investment in the Banggai cardinalfish - can females adjust egg size close to egg maturation to match the attractiveness of a new partner? Journal of Fish Biology 63: 144-151.

Niclas Kolm. 2002. Male size determines reproductive output in a paternal mouthbrooding fish. Animal Behaviour 63: 727-733.

Erik Höglund, Niclas Kolm, Svante Winberg. 2001. Stress-induced changes in brain serotonergic activity, plasma cortisol and aggressive behavior in Arctic charr (Salvelinus alpinus) is counteracted by L-DOPA. Physiology and Behavior 74: 381-389.

Niclas Kolm. 2001. Females produce larger eggs for large males in a paternal mouthbrooding fish. Proceedings of the Royal Society of London, Series B, Biological Sciences 268: 2229-2234.

Other academic

Alberto Corral-López, Maddi Garate-Olaizola, Severine Buechel, Niclas Kolm, Alexander Kotrschal. On the role of body size, brain size and eye size in visual acuity.

Alberto Corral-López, Maksym Romensky, Alexander Kotrschal, Severine Buechel, Niclas Kolm. Brain size, environmental complexity and mating behaviour.

Alberto Corral-López, Alexander Kotrschal, Niclas Kolm. Brain size affects the judgment of female quality during male mate choice.