Attributes / relations provided by
♦ 1i-Tree Species v. 4.0, developed by the USDA Forest Service's Northern Research Station and SUNY-ESF using the Horticopia, Inc. plant database.
♦ 2USDA Plants Database, U. S. Department of Agriculture
♦ 3Kattge, J. et al. (2011b)
TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 4Wood Janka Hardness Scale/Chart J W Morlan's Unique Wood Gifts
♦ 5Wood Technology Transfer Fact Sheets U.S. Department of Agriculture - Forest Service
♦ 6del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 7Current Status and Conservation of the Scarlet Macaw (Ara macao) in the Osa Conservation Area (ACOSA), Costa Rica, Fiona Dear, Christopher Vaughan and Adrián Morales Polanco, Research Journal of the Costa Rican Distance Education University Vol. 2(1): 7-21, June, 2010
♦ 8Artibeus jamaicensis, Jorge Ortega and Iván Castro-Arellano, MAMMALIAN SPECIES No. 662, pp. 19 (2001)
♦ 9Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P.
ScaleNet 4 November 2009
♦ 10Choloepus hoffmanni (Pilosa: Megalonychidae), VIRGINIA HAYSSEN, MAMMALIAN SPECIES 43(873):37–55 (2011)
♦ 11HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández
♦ 12Proyecto Tití