Acknowledgements
We acknowledge logistic support from IBAMABrazilian
Institute for Environment, and financial
support from World Wildlife Fund-WWF
(Grant No. 2266). We thank Erly Pedroso, Nilson
Carvalho and Argemiro, our tree spotters for
their patient and important work of species identification
in the forest, and Luiz Parente de Souza
for helping with organizing and supervising the
field activities. Thanks are also due to Svend
Korsgaard, Ana Mirtes Fouro and Mario Tavares
for their help in developing computer pro-
grams for data analysis, to Raimundo Parente de
Oliveira who assisted with statistical analysis,
and to Milton Kanashiro, Vicky Schreiber, Nick
Brown, Sandra Brown and Margarida Tom6 for
helpffil comments on the manuscript.