Environmental change enhances cognitive abilities in fish

9241 8 66971 2 185987 document 66971 Environmental Change Enhances Cognitive Abilities in Fish.PDF application/pdf 549ae7abdd00ce51c7fbf59656c1e749 MD5 219778 2016-07-22 12:07:55 https://pure.iiasa.ac.at/id/eprint/9241/1/Environmental%20Change%20Enhances%20Cognitive%20Abilities%20in%20Fish.PDF 9241 1 1 application/pdf text en public cc_by

Environmental Change Enhances Cognitive Abilities in Fish.PDF

published 66972 2 185990 document 66972 lightbox.jpg image/png 2e42407ef49760c3e1d490f92d327e6a MD5 63518 2016-07-22 12:08:15 https://pure.iiasa.ac.at/id/eprint/9241/2/lightbox.jpg 9241 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

lightbox.jpg

preview.jpg

medium.jpg

small.jpg

http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/66971 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/66971 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/66971 archive 351 disk0/00/00/92/41 2016-01-15 08:44:01 2021-08-27 17:38:51 2016-01-15 08:44:01 article show Kotrschal A. Taborsky B. 1834 Environmental change enhances cognitive abilities in fish pub iis_ecl prog_eep Flexible or innovative behavior is advantageous, especially when animals are exposed to frequent and unpredictable environmental perturbations. Improved cognitive abilities can help animals to respond quickly and adequately to environmental dynamics, and therefore changing environments may select for higher cognitive abilities. Increased cognitive abilites can be attained, for instance, if environmental change during ontogeny triggers plastic adaptive responses improving the learning capacity of exposed individuals. We tested the learning abilities of fishes in response to experimental variation of envionmental quality during ontogeny. Individuals of the cichlid fish "Simochromis pleurospilus" that experienced a change in food ration early in life outperformed fish kept on constant rations in a leaning task later in life- irrespective of the direction of the implemented change and the mean rations received. This difference in learning abilities between individuals remained constant between juvenile and adult stages of the same fish tested 1 y apart. Neither environmental enrichment nor training through repeated neural stimulation can explain our findings, as the sensory environment was kept constant and resource availability was changed only once. Instead, our results indicate a pathway by which a single change in resource availability early in life permanently enhances the learning abilities of animals. Early perturbations of environmental quality may signal the developing individual that it lives in a changing world, requiring increased cognitive abilities to construct adequate behavioral responses. 2010-05 published Public Library of Science (PLoS) 10.1371/journal.pbio.1000351 XJ-10-064 PLoS Biology; 8(4):e1000351 (6 April 2010) [doi:10.1371/journal.pbio.1000351] 1604 public PLoS Biology 8 4 E1000351 TRUE 1544-9173 FALSE info:eu-repo/semantics/article