On...tropical rainforest biomass per trophic level (an estimate)

Bibliography:
Oliver L. Phillips, Niro Higuchi, Simone Vieira, Timothy R. Baker, Kuo-Jung Chao, and Simon L. Lewis. "Changes in Amazonian Forest Biomass, Dynamics, and Composition, 1980–2002." 2009.

Sandhyarani, Ningthoujam. "Tropical Rainforest's Energy Pyramid." 2010. Buzzle.com. 24 August 2010 <http://www.buzzle.com/articles/tropical-rainforests-energy-pyramid.html>.