Document Detail

The rise of the hominids as an adaptive shift in fallback foods: plant underground storage organs (USOs) and australopith origins.
MedLine Citation:
PMID:  16085279     Owner:  NLM     Status:  MEDLINE    
We propose that a key change in the evolution of hominids from the last common ancestor shared with chimpanzees was the substitution of plant underground storage organs (USOs) for herbaceous vegetation as fallback foods. Four kinds of evidence support this hypothesis: (1) dental and masticatory adaptations of hominids in comparison with the African apes; (2) changes in australopith dentition in the fossil record; (3) paleoecological evidence for the expansion of USO-rich habitats in the late Miocene; and (4) the co-occurrence of hominid fossils with root-eating rodents. We suggest that some of the patterning in the early hominid fossil record, such as the existence of gracile and robust australopiths, may be understood in reference to this adaptive shift in the use of fallback foods. Our hypothesis implicates fallback foods as a critical limiting factor with far-reaching evolutionary effects. This complements the more common focus on adaptations to preferred foods, such as fruit and meat, in hominid evolution.
Greg Laden; Richard Wrangham
Related Documents :
14977449 - Effects of chrysin on urinary testosterone levels in human males.
19355949 - Flavonoids, vascular function and cardiovascular protection.
16085279 - The rise of the hominids as an adaptive shift in fallback foods: plant underground stor...
19225969 - Adaptive ingredients against food spoilage in japanese cuisine.
18679799 - Variation in the carotenoid composition of the lycopene-rich brazilian fruit eugenia un...
20178389 - Identification and quantification of apo-lycopenals in fruits, vegetables, and human pl...
11307939 - Effect of supplementation of dry cat food with d,l-methionine and ammonium chloride on ...
19946359 - The progressive increase of food waste in america and its environmental impact.
19906499 - The health and technological implications of a better control of neoformed contaminants...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of human evolution     Volume:  49     ISSN:  0047-2484     ISO Abbreviation:  J. Hum. Evol.     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-09-12     Completed Date:  2006-01-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0337330     Medline TA:  J Hum Evol     Country:  England    
Other Details:
Languages:  eng     Pagination:  482-98     Citation Subset:  IM    
Department of Anthropology, University of Minnesota, Twin Cities Campus, 301 19th Avenue S, Minneapolis, MN 55455, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Adaptation, Biological
Food Habits*
Hominidae / physiology*
Plant Roots

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  A 3D quantitative comparison of trapezium and trapezoid relative articular and nonarticular surface ...
Next Document:  PCBs in sediments and the coastal food web near a local contaminant source in Saglek Bay, Labrador.