Impacts of animal traffic on the Brazilian Amazon parrots (Amazona species) collection of the Quinzinho de Barros Municipal Zoological Park, Brazil, 1986–2007 - Vanstreels, Ralph Eric Thijl; Teixeira, Rodrigo Hidalgo Friciello; Camargo, Luis Carlos; Nunes, Adauto Luis Veloso; Matushima, Eliana Reiko (Zoo Biology, 2010)