a1 Wildlife Conservation Society, 185th and Southern Boulevard, Bronx, New York 10460, USA.
a2 The Nature Conservancy, 1815 North Lynn Street, Arlington, Virginia, USA.
Wild animals are an important source of protein for the rural peoples living in or near tropical forests. However, the resource can easily be overexploited and game species can become locally depleted, or even extinct. This paper discusses attempts to measure the sustainability of hunting in tropical forests. It examines five indices of sustainability in current use and two models that attempt to model sustainability.