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

@article{Kaufman2003OnTE,
  title={On the Expensive‐Tissue Hypothesis: Independent Support from Highly Encephalized Fish},
  author={Jason A Kaufman},
  journal={Current Anthropology},
  year={2003},
  volume={44},
  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) – 
No evidence for the expensive-tissue hypothesis in Fejervarya limnocharis
TLDR
The findings suggest that the cost of large brains in F. limnocharis cannot be compensated by decreasing size in other metabolically costly tissues. Expand
No evidence for the 'expensive-tissue hypothesis' in the dark-spotted frog, Pelophylax nigromaculatus
TLDR
It is found that relative brain size was not correlated with relative sizes of testes, heart, liver, spleen, kidneys or limb muscles within each sex, and the finding suggests that energetic costs of one expensive tissue do not direct necessarily affect the investment in another expensive tissue, but rather may scatter its effect on all other expensive tissues. Expand
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
Encephalization, expensive tissues, and energetics: An examination of the relative costs of brain size in strepsirrhines.
TLDR
The results reveal that Daubentonia, the most encephalized and thus human-like of the lemurs, does not experience an energetic trade-off between brain and body during ontogeny, but does exhibit a trade-offs between extensive brain growth and possibly reduced intestinal growth. Expand
No evidence for the ‘expensive‐tissue hypothesis’ from an intraspecific study in a highly variable species
TLDR
The results demonstrate that the frequent rejection of the expensive‐tissue hypothesis may not be an artefact of interspecific differences in selection and suggests that organisms may be capable of compensating for substantial changes in tissue investment without sacrificing mass in other expensive tissues. Expand
Adaptive brain size divergence in nine‐spined sticklebacks (Pungitius pungitius)?
TLDR
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
TLDR
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
TLDR
The results indicate that the energetic costs of encephalization may be an important general factor involved in the evolution of brain size also in ectothermic vertebrates. Expand
Costs of encephalization: the energy trade-off hypothesis tested on birds.
TLDR
The trade-off between locomotor costs and brain mass in birds lets us conclude that an analogous effect could have played a role in the evolution of a larger brain in human evolution. Expand
Body composition and the brain: investigating life history trade-offs in living humans
TLDR
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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