1. Abramsky Z, Strauss E, Subach A, Kotler BP, Reichman A (1996) The effect of barn owls (Tyto alba) on the activity and microhabitat selection of Gerbillus allenbyi and G. pyramidum. Oecologia 105:313–319. doi: 10.1007/bf00328733
2. Altmann J (1974) Observational study of behavior: sampling methods. Behaviour 49:227–267. doi: 10.1163/156853974x00534
3. Aracruz (2008) Plano de Manejo Florestal da Aracruz Celulose Unidade Guaíba. In Resumo Público do Plano de Manejo Florestal da Aracruz Celulose. Aracruz Celulose. Avaiable via http://www.aracruz.com.br/doc/pdf/sumario_ug_200612493520.pdf . Accessed 25 Feb 2008
4. Azevedo CS, Tinoco HP, Ferraz JB, Young RJ (2006a) The fishing rhea: a new food item in the diet of wild greater rheas (Rhea americana, Rheidae, Aves). Rev Bras Ornito 14(3):285–287
5. Azevedo CS, Tinoco HP, Ferraz JB, Young RJ (2006b) Unusual nest site for greater rheas (Rhea americana, Rheidae, Aves). Rev Bras Ornito 14(3):289–290