In forests managed by participatory management in Tanzania, “volunteer” patrollers often enforce access restrictions, receiving a share of collected fine revenue as incentive. The authors explore how shared revenue and alternative sources of forest products for villagers determine the patrollers’ enforcement effort and decision to take bribes rather than report violators.

This is an empirical exploration of villagers’ dependence on non-timber forest products in the Morogoro region in Tanzania, the decision rules used concerning where and how much they collect, how collection changes with forest degradation, and the implications of more restrictive access from participatory forest management. Villagers’ responses to increased degradation vary by forest product; some collection tends to be displaced to other forests, less of the resources are collected, and collection times increase considerably.

This paper relates principle findings in the optimal economic enforcement literature to practical issues of enforcing and managing forest and wildlife access restrictions in developing countries.

The authors identified large gaps in the theoretical literature that limit its usefulness for practical management, particularly regarding limited funding and cost recovery, multiple layers of enforcement, different incentives faced by enforcers, and conflict between protected-area managers’ job requirements and rural people’s needs.

The authors explore the impact of participatory forest management (PFM) in Tanzania that excludes villagers from traditional access to forests to collect non-timber forest products (NTFPs).

Using fieldwork and a spatial-temporal model, they focused on forest degradation and regeneration and villagers’ utility before and after PFM has been introduced. Although the PFM forest improves, they found that a moratorium on NTFP collection often adversely affects villagers’ livelihoods and more distant, less-protected forests.

Following the 1998 National Forest Policy and Forest Act of 2002, participatory forest management (PFM) is being introduced in Tanzania. PFM has two key objectives: to reduce forest degradation thereby increasing ecosystem services, and to improve the livelihoods of local villagers.

A unique data set collected in 2006 suggests that significant challenges remain with respect to communicating the new forest policies if the objectives of PFM are to be achieved.