Conservation Model

Most Likely to Succeed

Most Likely to Fail

Habitat Externalities

Open Access

Resource is in low demand relative to resupply rate.

Resource is in high demand relative to resupply rate.

None to negative.

Government Access

Strong incentives and capabilities to conserve wildlife and habitat.

Weak incentives and capabilities to conserve wildlife and habitat.

Varies with the incentives of wildlife managers.

Private Access

Resource can thrive on local range only, or, if migratory, reliably returns to the same breeding or feeding grounds.

Resource thrives only by migrating over a large range encompassing numerous nations or international waters.

Generally positive and when lacking may be subsidized by government or volunteers.