Deforestation rates and tropical forest cover are taken from the latest State of the World's Forests 2011 (SOFO) published by the United Nations Food and Agriculture Organization (FAO).

M. McKloskey in "Note on the Fragmentation of Primary Rainforest," Ambio 22 (4), June: 250-51 1993 using analysis of satellite images.

The history of the Amazon River Basin is covered engagingly in Goulding ( Amazon-The Flooded Forest , New York: Sterling Publishing Co., Inc. 1990).

Van Osterzee ( Where Worlds Collide , New York: Cornell University Press, 1997), Quammen ( The Song of the Dodo , New York: Scribner 1996.), and Browne ( The Secular Ark: Studies in the History of Biogeography , New Haven: Yale University Press 1983) provide an easily understandable review of the Wallace line biogeography including the current distribution of flora and fauna in the region and the impact of changing sea levels. Rubeli (Tropical Rainforest in South-East Asia, Kuala Lumpur: Tropical Press Sdn. Bhd., 1986.) discusses the link between flora of New Zealand, the Himalayas, and Borneo.

Australia's rainforest coverage during the most recent ice ages is discussed in M. Hopkins and P. Reddell (Australia's CSIRO 1998) and van Osterzee ( Where Worlds Collide , New York: Cornell University Press. 1997). T.F. Flannery ( The Future Eaters , New York: Braziller 1995) also discusses vegetation shifts wrought by climate change and human influences.

The mechanism responsible for the worldwide decline in amphibian populations is debated by Lips ("Decline of a montane amphibian fauna," Conservation Biology Vol. 12 No. 1 (106-117), Feb. 1998.), Sessions et. al. (Sessions, S.K. Franssen, R.A., Horner, V.L., "Morphological Clues from Multilegged Frogs: Are Retinoids to Blame?" Science 284 (5415) 1999), Tangley ("The Silence of the Frogs," U.S. World and News Report 8/3/98), and Tuxill ("The Latest News on the Missing Frogs," World Watch May/June 1998). For alternative commentary from an unlikely source see M. Fumento ("With Frog Scare Debunked, It Isn't Easy Being Green," The Wall Street Journal 5/12/99).

The "Primary Cover versus Total Forest Cover" table is taken from Myers, N., "Tropical forests: present status and future outlook," Climactic Change 19 (3-32), 1991.

Pearce correlates forest clearing in West Africa to falling precipitation in the African interior in "Lost Forests Leave West Africa Dry," The New Scientist 1-18-97.

The Amazonian igapò is the subject of Goulding's Amazon-The Flooded Forest, New York: Sterling Publishing Co.,Inc. 1990.

Brookfield, H., Potter, L., and Byron, Y. provide a short description of Indonesian peat forests in In Place of the Forest: Environmental and Socio-economic Transformation in Borneo and the Eastern Malay Peninsula (New York: United Nations University Press, 1995), while T. Nishizawa and J. I. Uitto, eds. (The Fragile Tropics of Latin America: Sustainable Management of Changing Environments, New York: United Nations University Press, 1995) review Latin American forest types.