On the Expensive‐Tissue Hypothesis: Independent Support from Highly Encephalized Fish

  title={On the Expensive‐Tissue Hypothesis: Independent Support from Highly Encephalized Fish},
  author={Jason A Kaufman},
  journal={Current Anthropology},
  pages={705 - 707}
  • J. Kaufman
  • Published 1 December 2003
  • Biology
  • Current Anthropology
Chitala Mean 12.92 11.13 0.51 0.14 0.026 0.41 0.19 3.70 (S.D.) (1.04) (1.97) (0.10) (0.02) (0.005) (0.10) (0.03) (0.81) Hypostomus Mean 12.94 16.68 1.31 0.10 0.010 0.71 0.08 73.20 (S.D.) (0.60) (2.23) (0.21) (0.03) (! 0.001) (0.15) (0.008) (7.22) Gnathonemus Mean 18.18 26.09 0.39 0.15 0.012 0.57 0.53 6.70 (S.D.) (1.34) (3.95) (0.09) (0.01) (0.004) (0.13) (0.06) (0.45) Expected 1.15 0.25 0.04 0.19 (95% C.I.) (0.69–1.91) (0.16–0.40) (0.02–0.06) – (0.14–0.26) – 
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No evidence for the 'expensive-tissue hypothesis' in the dark-spotted frog, Pelophylax nigromaculatus
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Evidence for the expensive-tissue hypothesis in the Omei Wood Frog (<i>Rana omeimontis</i>)
Brain size variation across the animal kingdom can be interpreted as a trade-off between selective advantages of higher cognitive ability and the prohibitively high energy demands of a large brain.Expand
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No evidence for the ‘expensive‐tissue hypothesis’ from an intraspecific study in a highly variable species
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Investigating the brain size and structure of first‐generation laboratory‐bred nine‐spined sticklebacks from four geographically and genetically isolated populations found that the relative size of bulbus olfactorius and telencephalon was significantly larger in marine than in pond populations. Expand
The relationship between brain size and digestive tract length do not support expensive-tissue hypothesis in Hylarana guentheri
The findings suggest that the variation of brain size did not follow general patterns in this species and that the effect of diet quality cannot play a role in the variationof brain. Expand
Comparative support for the expensive tissue hypothesis: Big brains are correlated with smaller gut and greater parental investment in Lake Tanganyika cichlids
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Results suggest the metabolic cost of organs and tissues is variable, and that the brain – in particular its gray matter component – trades off against lean tissues in the body, but not fat mass, but less support was found for the prediction that trade-offs are mediated by fetal and infant growth. Expand


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  • Nilsson
  • Biology, Medicine
  • The Journal of experimental biology
  • 1996
The results establish a new record for the energetic cost of a vertebrate brain and show that the species possessing such a brain has a high capacity for utilising O2 at very low ambient concentrations. Expand
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