All Stories

  1. Predation pressure shapes brain anatomy in the wild

    Article • Evolutionary Ecology, May 2017, Springer Science + Business Media

    Dr Alexander Kotrschal

  2. Large Brains, Small Guts: The Expensive Tissue Hypothesis Supported within Anurans

    Article • The American Naturalist, December 2016, University of Chicago Press

    Dr Alexander Kotrschal

  3. Brain size evolves under allometric constraints in cichlids

    Article • Evolution, June 2016, Wiley

    Dr. Masahito Tsuboi, Dr Alexander Kotrschal

  4. Selection for brain size impairs innate, but not adaptive immune responses

    Article • Proceedings of the Royal Society B Biological Sciences, March 2016, Royal Society Publishing

    Dr Alexander Kotrschal

  5. The effect of brain size evolution on feeding propensity, digestive efficiency, and juvenile growth

    Article • Evolution, October 2015, Wiley

    Dr Alexander Kotrschal

  6. Brain size affects the behavioural response to predators in female guppies ( Poecilia reticulata )

    Article • Proceedings of the Royal Society B Biological Sciences, July 2015, Royal Society Publishing

    Mr Wouter van der Bijl, Dr Alexander Kotrschal

  7. Rearing-Group Size Determines Social Competence and Brain Structure in a Cooperatively Breeding Cichlid

    Article • The American Naturalist, July 2015, University of Chicago Press

    Dr Alexander Kotrschal

  8. Expression change in Angiopoietin-1 underlies change in relative brain size in fish

    Article • Proceedings of the Royal Society B Biological Sciences, June 2015, Royal Society Publishing

    Dr Alexander Kotrschal

  9. Brain size affects female but not male survival under predation threat

    Article • Ecology Letters, May 2015, Wiley

    Dr Alexander Kotrschal

  10. No association between brain size and male sexual behavior in the guppy

    Article • Current Zoology, April 2015, Oxford University Press (OUP)

    Dr Alexander Kotrschal

  11. Positive genetic correlation between brain size and sexual traits in male guppies artificially selected for brain size

    Article • Journal of Evolutionary Biology, March 2015, Wiley

    Dr Alexander Kotrschal

  12. A larger brain confers a benefit in a spatial mate search learning task in male guppies

    Article • Behavioral Ecology, December 2014, Oxford University Press (OUP)

    Dr Alexander Kotrschal

  13. The expensive tissue hypothesis revisited in Lake Tanganyika cichlids

    Article • Evolution, December 2014, Wiley

    Assistant Professor Arild Husby, Masahito Tsuboi, Dr Alexander Kotrschal, Dr. Masahito Tsuboi

  14. The mating brain: early maturing sneaker males maintain investment into the brain also under fast body growth in Atlantic salmon (Salmo salar)

    Article • Evolutionary Ecology, June 2014, Springer Science + Business Media

    Dr Alexander Kotrschal

  15. Developmental plasticity of growth and digestive efficiency in dependence of early‐life food availability

    Article • Functional Ecology, February 2014, Wiley

    Dr Alexander Kotrschal

  16. ARTIFICIAL SELECTION ON RELATIVE BRAIN SIZE REVEALS A POSITIVE GENETIC CORRELATION BETWEEN BRAIN SIZE AND PROACTIVE PERSONALITY IN THE GUPPY

    Article • Evolution, February 2014, Wiley

    Dr Alexander Kotrschal

  17. The benefit of evolving a larger brain: big-brained guppies perform better in a cognitive task

    Article • Animal Behaviour, October 2013, Elsevier

    Dr Susanne RK Zajitschek, Dr Alexander Kotrschal

  18. Artificial Selection on Relative Brain Size in the Guppy Reveals Costs and Benefits of Evolving a Larger Brain

    Article • Current Biology, January 2013, Elsevier

    Dr Susanne RK Zajitschek, Dr Alexander Kotrschal

  19. Sex-specific plasticity in brain morphology depends on social environment of the guppy, Poecilia reticulata

    Article • Behavioral Ecology and Sociobiology, September 2012, Springer Science + Business Media

    Dr Alexander Kotrschal

  20. Inside the heads of David and Goliath: environmental effects on brain morphology among wild and growth-enhanced coho salmon Oncorhynchus kisutch

    Article • Journal of Fish Biology, May 2012, Wiley

    Dr Alexander Kotrschal

  21. Extreme Sexual Brain Size Dimorphism in Sticklebacks: A Consequence of the Cognitive Challenges of Sex and Parenting?

    Article • PLoS ONE, January 2012, PLOS

    Dr Bjarni K Kristjánsson, Dr Alexander Kotrschal

  22. Life-stage specific environments in a cichlid fish: implications for inducible maternal effects

    Article • Evolutionary Ecology, May 2011, Springer Science + Business Media

    Dr Alexander Kotrschal

  23. A noninvasive method to determine fat content in small fish based on swim bladder size estimation

    Article • Journal of Experimental Zoology Part A Ecological Genetics and Physiology, April 2011, Wiley

    Dr Alexander Kotrschal

  24. Resource Defence or Exploded Lek? - A Question of Perspective

    Article • Ethology, October 2010, Wiley

    Dr Alexander Kotrschal

  25. Environmental Change Enhances Cognitive Abilities in Fish

    Article • PLoS Biology, April 2010, PLOS

    Dr Alexander Kotrschal

  26. Telomere Attrition Due to Infection

    Article • PLoS ONE, May 2008, PLOS

    Dr Alexander Kotrschal

  27. Stress impacts telomere dynamics

    Article • Proceedings of the Royal Society B Biological Sciences, April 2007, Royal Society Publishing

    Dr Alexander Kotrschal