In contrast to the jeopardy caused to commonproperty regimes by conditions of open access, factorssuch as boundary ambiguity, shifts, and maintenancefailures are the causes of a different set of problemsin the Los Haitises National Park, a controversialprotected area in the Dominican Republic....

Extractive reserves, usually associated with the survival of rubber tappers in the Brazilian tropics, have close parallels elsewhere, including temperate zones. This research isolates the distinctive features of recent Amazonian reserves, illustrates parallel features in a fifty year-old...