The first federal policy for the protectionof endangered species was theEndangered Species Preservation Act,passed in 1966. This act was replacedin 1969 with the Endangered SpeciesConservation Act, which acted tostrengthen the legislation. Finally, in1973, the Endangered Species Act waspassed. This act was recentlyreauthorized.
The responsibility for the managementof endangered species in terrestrial andfreshwater habitats falls on the Fish andWildlife Service of the Department ofthe Interior. For marine species,responsibility lies with with the NationalMarine Fisheries Service of theDepartment of Commerce.
What is an endangered species? One that is in danger of extinction throughout all or a significant portion of their range.What is a threatened species? One that is likely to become endangered within the forseeable future.Note: the term species is not interpreted biologically.
The Federal list of endangered andthreatened species in 1995 containedabout 1525 forms representing 962biological species.
What is a minimum viable population? The smallest number of breeding individuals that has a specified probability of surviving for a certain time, without losing its evolutionary adaptability.
Endangered Species Top Ten List! According to the World Wildlife Federation, these are the ten most endangered species on earth.