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4 results on '"Harris, John M."'

1. Global vegetation change through the Miocene/Pliocene boundary

Author

Cerling, Thure E., Harris, John M., MacFadden, Bruce J., Leakey, Meave G., Quade, Jay, Eisenmann, Vera, and Ehleringer, James R.

Subjects
Photosynthesis research -- Environmental aspects, Plant biomass -- History, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Geophysical evidence suggests that the sharp rise in C4 biomass on earth eight million years ago was caused by favourable environment conditions for C4-photosynthesizing plants. Carbon isotope studies using hypsodont mammals shows that larger mammals from the period ate pure C3, or C3-dominated plant matter. C4 biomass levels reflect carbon dioxide levels in the late Miocene period.

Published
1997

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