wpsPortal

The Endangered Species Portal section of WPS is designed to be a research hub for endangered animal species. Information is categorized and links to multiple peer reviewed and footnoted sources. The intent is to facilitate information based conservation efforts that benefit the most critically endangered species.

ENDANGERED SPECIES IN CRISISSPECIES LISTSSUCCESS STORIESSEARCH SCHOLARLY RESEARCH ARTICLES

Below are species that are critically endangered with declining populations and little in the way of interventive efforts. We hope highlighting these species focuses attention and efforts to preserve the remaining populations.


    WIKIPEDIA  IUCN SUMMARY  IUCN RANGE MAP  APP  CONSERVATION FORUM


    WIKIPEDIA  IUCN SUMMARY  IUCN RANGE MAP  APP  CONSERVATION FORUM


    WIKIPEDIA  IUCN SUMMARY  IUCN RANGE MAP  APP  CONSERVATION FORUM


WIKIPEDIA  IUCN SUMMARY  IUCN RANGE MAP  APP  CONSERVATION FORUM


WIKIPEDIA  IUCN SUMMARY  IUCN RANGE MAP  APP  CONSERVATION FORUM


This tab is designed to provide easy access to lists of mammals, birds, & reptiles. These lists may be useful for prioritizing conservation efforts based on the total population size and the population trends over time. Lists of species with the lowest population numbers and highest likelihood of extinction.

Current endangered status and recent population trends are also indicated.


LIST OF PRIMATES BY POPULATION - click to open
LIST OF ODD-TOED UNGULATES BY POPULATION - click to open
LIST OF EVEN-TOED UNGULATES BY POPULATION - click to open
LIST OF BIRDS BY POPULATION - click to open
LIST OF BATS BY POPULATION - click to open
LIST OF CARNIVORES BY POPULATION - click to open

*lists provided by Wikipedia

This page is designed to provide examples of common problems faced by endangered species as well as success stories illustrating how they can be overcome.  These methods may be applied to currently endangered populations where appropriate to increase chances of preserving species.

Examples of charismatic and well known species that experienced a significant population increase over time. These case studies illustrate common problems and solutions in endangered species conservation.

White rhino
The white rhinoceros was reduced by hunting to only 20 individuals by 1900. Habitat conservation, hunting bans and wild reintroductions grew the population to more than 20,000.
More Information
California condor
The California condor is the largest North American land bird. This condor became extinct in the wild in 1987 due to pesticide use and lead poisoning, The species has been successfully reintroduced via a captive breeding program.
More Information
Golden Tamarin Lion Monkey
The Golden Tamarin Lion Monkey was reduced to around 150 individuals as late as 1969. Habitat preservation and captive breeding programs have restored populations to around 3,200.
More Information
Tinian monarch
Sugar cane production and military activity caused the Tinian monarch to become increasingly rare until it was listed as endangered in 1970. Careful efforts to restore the bird’s forest habitat led to a healthy restoration of the population up to more than 55,000 individuals, prompting its removal from the Endangered Species list.
More Information
Big Bend gambusia
The Big Bend gambusia was completely extirpated from the wild in the 1950’s by water diversions of the Rio Grande. The three surviving individuals were taken in to captivity in 1957 and populations were reintroduced into specially designed refugia and other suitable habitats. There were stable populations of around 50,000 Big Bend gambusia in 2005.
More Information
El Segundo blue butterfly
The El Segundo blue butterfly lost the majority of its habitat with the development of the Los Angeles airport and surrounding community. In 1984 there were an estimated 500 individuals as conservation efforts began. In 1992 the City of Los Angeles established a 203 acre Habitat Restoration Area, allowing the population to grow from 750 to more than 100,000 individuals.
More Information
Kemp’s ridley sea turtle
Kemp’s ridley sea turtle has shown an increase in nests from a low of 740 in 1985 to over 11,500 in Mexico during 2006. This recovery is largely attributed to protection of the animals nesting habitat and the use of sea turtle exclusion devices on shrimp fishing vessels.
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Guadalupe fur seal
The Guadalupe fur seal was thought extinct due to hunting until one was found in 1949, and 14 more were found off of Guadalupe Island in 1954. Thanks to a hunting ban and habitat protection the population of these animals reached around 12,000 in 2003.
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Humpback whale
Humpback whales were reduced to around 1,200 animals in the 1960’s due to the commercial whaling industry. In response to the international ban on whaling, the population has grown to more than 21,000 individuals.
More Information
Least Bell’s vireo
The least Bell’s vireo population has been decimated by brood parasitism by the Brown-headed cow bird and loss of habitat. Through intensive efforts to control Brown-headed cow birds and restore habitat the population of the least Bell’s vireo has climbed from 600 in 1986 to more than 5,000.
More Information
*list provided by esasuccess.org

We’ve made it easy for you to search through many conservation resources below, including Google Scholar, Nature, PLOS, eLife, and PeerJ.