Species recovery

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U.S. environmental policy
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Species recovery is the elimination of or reduction in threats to an animal or plant species' survival as required under the Endangered Species Act (ESA). Once a species has recovered, it is removed from the federal list of endangered species.[1][2][3]

Background

According to the U.S. Fish and Wildlife Service, "The goal of the Endangered Species Act is the recovery of listed species to levels where protection under the Act is no longer necessary." Recovery is the process of stopping the decline of an endangered or threatened species by removing or reducing threats. The U.S. Fish and Wildlife Service coordinates with states and local governments to implement programs aimed at preventing the extinction of species. A species is delisted when threats to its survival have been reduced or eliminated.[2]

Recovery program

The U.S. Fish and Wildlife Service's species recovery program involves other federal agencies, states, and local governments preparing and implementing species-specific recovery programs. A federal recovery plan is prepared for newly listed endangered or threatened species unless the government determines a plan is unnecessary, which occurs in cases where a recovery plan would not promote a species' conservation. Federal recovery plans are not legally binding and provide guidelines for the government to improve a species' recovery. As of August 2016, 1,157 species—73 percent of U.S.-listed species—had active recovery plans.[2][4]

Three subspecies of island fox were bred in captivity as part of the federal recovery program. After 12 years, the species were delisted in August 2016.

In the 1990s, the U.S. Fish and Wildlife Service introduced the Safe Harbor program as a way to provide incentives for private landowners to recover listed species. A safe harbor agreement permits private landowners to implement voluntary conservation measures for listed species. In return, landowners do not face additional regulations or restrictions on their private property. One example of a safe harbor agreement involved private landowners conducting controlled burnings to reduce undergrowth and installing nest boxes for the endangered red-cockaded woodpecker.[2]

Some listed species are put into captive breeding recovery programs. After a certain length of time, species bred in captivity are released into the wild. Fish and Wildlife Service officials also remove potential threats to the species' survival in the wild before a species' members are released. One example is the California island fox; three subspecies of the fox were delisted in August 2016. In 2000, two groups of 15 foxes each inhabited the San Miguel and Santa Rosa islands while 55 foxes inhabited Santa Cruz Island. As of August 2016, the fox population was estimated at 700 foxes on the San Miguel Island and 2,100 foxes on the Santa Cruz Island. The species’ recovery was attributed to the relocation of predators and the federal captive breeding program. Federal officials estimated that the rearing of foxes in captivity cost approximately $20 million over the 12-year period. Wildlife officials killed roughly thousands of pigs to force golden eagles—the main predator of the island foxes—to forage in other areas, an action that aided the foxes’ recovery according to the U.S. Fish and Wildlife Service.[5]

Recovered species

See also: Delisting a species

As of August 2016, 66 species were delisted nationally. Of those species, 37 were delisted due to recovery, 19 species were listed in error (for scientific reasons or because new information about a species was discovered), and 10 species went extinct. The table below shows the names of the 37 recovered species as of August 2016.[6]

Recovered species between 1973 and August 2016
Date species first listed Date delisted Species name (scientific name)
03/05/2004 9/12/2016 Fox, San Miguel Island (Urocyon littoralis littoralis) - wherever found
03/05/2004 9/12/2016 Fox, Santa Cruz Island (Urocyon littoralis santacruzae) - wherever found
03/05/2004 9/12/2016 Fox, Santa Rosa Island (Urocyon littoralis santarosae) - wherever found
03/11/1967 7/24/2003 Deer, Columbian white-tailed (Odocoileus virginianus leucurus) - Douglas County, Washington
8/30/1999 9/15/2011 Snake, Lake Erie water (Nerodia sipedon insularum)
5/22/1997 8/18/2005 Sunflower, Eggert's (Helianthus eggertii)
6/16/1994 6/16/1994 Whale, gray (Eschrichtius robustus) - Except where still listed
10/18/1993 3/23/2015 Chub, Oregon (Oregonichthys crameri)
7/19/1990 10/7/2003 Woolly-star, Hoover's (Eriastrum hooveri)
4/5/1990 12/4/2013 Sea lion, Steller (Eumetopias jubatus)
4/17/1989 6/14/2013 Shagreen, Magazine Mountain (Inflectarius magazinensis)
9/3/1986 11/28/2011 Snake, Concho water (Nerodia paucimaculata)
9/5/1985 2/18/2011 Daisy, Maguire (Erigeron maguirei)
7/31/1985 3/4/2013 Squirrel, Virginia northern flying (Glaucomys sabrinus fuscus)
9/17/1980 8/27/2002 Cinquefoil, Robbins' (Potentilla robbinsiana)
7/27/1979 6/4/1987 Alligator, American (Alligator mississippiensis)
7/5/1979 9/2/2011 Coneflower, Tennessee purple (Echinacea tennesseensis)
3/9/1978 5/5/2011 Wolf, gray (Canis lupus) - Northern Rocky Mountain population
9/12/1977 4/1/2014 Lizard, Island night (Xantusia riversiana)
12/30/1974 3/9/1995 Kangaroo, eastern gray (Macropus giganteus)
12/30/1974 3/9/1995 Kangaroo, red (Macropus rufus)
12/30/1974 3/9/1995 Kangaroo, western gray (Macropus fuliginosus)
6/2/1970 5/23/2012 Crocodile, Morelet's (Crocodylus moreletii)
6/2/1970 9/12/1985 Dove, Palau ground (Gallicolumba canifrons)
6/2/1970 8/25/1999 Falcon, American peregrine (Falco peregrinus anatum)
6/2/1970 10/5/1994 Falcon, Arctic peregrine (Falco peregrinus tundrius)
6/2/1970 9/12/1985 Flycatcher, Palau fantail (Rhipidura lepida)
6/2/1970 9/21/2004 Monarch, Tinian (old world flycatcher) (Monarcha takatsukasae)
6/2/1970 9/12/1985 Owl, Palau (Pyrroglaux podargina)
6/2/1970 12/17/2009 Pelican, brown (Pelecanus occidentalis) - Non-U.S. Atlantic coast populations
6/2/1970 2/4/1985 Pelican, brown (Pelecanus occidentalis) - U.S. Atlantic coast, Florida and Alabama populations
3/11/1967 8/8/2007 Eagle, bald (Haliaeetus leucocephalus)
3/11/1967 3/20/2001 Goose, Aleutian Canada (Branta canadensis leucopareia)
3/11/1967 12/16/2015 Squirrel, Delmarva Peninsula fox (Sciurus niger cinereus) - Except where listed as experimental population
6/11/1985 1/7/2016 Sucker, Modoc (Catostomus microps)
8/7/1984 2/11/2016 Frankenia, Johnston's (Frankenia johnstonii)
1/7/1992 3/11/2016 Bear, Louisiana black (Ursus americanus luteolus)
Source: U.S. Fish and Wildlife Service, "Delisting report"

See also

Footnotes