Attributes / relations provided by 
♦ 1Frimpong, E.A., and P. L. Angermeier. 2009. 
FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
♦ 2de Magalhaes, J. P., and Costa, J. (2009) 
A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 3Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at 
animaldiversity.org♦ 4Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). 
Host-Parasite Database of the Natural History Museum, London