When is an endangered species no longer considered "endangered"?

Question

Is there a certain number of animals that has to be met?

Is it different per species?

I'm doing a project on the Gray Wolf and need the exact information regarding it.

Please help!

Thanks in advance. :)

Answer 1

when a species is no longer endangered, they are either extinct, or the population of that certian species has increased

Answer 2

For the gray wolf it's not only "numbers" of the species, but range, habitat security, pack health, etc.

The links below discuss what had to be one of the most successful yet controversial reintroduction programs ever done in North America.

For a number of reasons (mostly cultural) man has a deep seated fear of wolves.  When wolves were brought back to Yellowstone National Park (they had been killed of or driven out 70-years before) it furthered deepened the chasm between pro wolf supports and those tying to continue to keep the plains free of wolves.

While their numbers are growing, there are a number of possible threats that could send the wolf population numbers plummeting.  This includes disease, loss of habitat, finding sustainable game, etc.

The last link below is for the Wolf Recovery Foundation.  They have some outstanding resources and links for you to find "hard" numbers on well gray wolves are doing in and around Yellowstone National Park.

Answer 3

A species need to have a population capable of sustaining itself long term.  At which point it would move to the Threatened list.  

Population numbers would be different for different species.  The US Fish and Wildlife Service had really specific numbers for the Gray wolf in the Idaho/Montana area where they were reintroduced.  It depended on the number of packs and there ability to interact with each other.

The problem there comes when they are removed from the Endagered Species list and ranchers can start shooting them again.  Right now they have to have proof predation.

Answer 4

An endangered species is no longer considered endangered if it:

1. Can continue to procreate, i.e. if there are enough animals to maintain the species.

2. Is growing in number, especially steadily or rapidly, e.g. the Gray Wolf in Yellowstone.

3. Has a population close to, the same as or even more than the population it had before its numbers was reduced.

Answer 5

when the government says it is no longer endangered.  This usually occures when a certain number of animals are observed

Answer 6

well, the short answer is that when it is declared as no longer endangered.

however, how that is decided depends on the species to some extent. assuming a good news scenario (it is not endangered because it has recovered, not because it is extinct!), to generalise, this is when the species numbers have recovered such that it is able to sustain a viable population - it has enough numbers to have enough genetic variation within the population and enough individuals to meet and mate to propagate a healthy population on its own.

plus, the external factors that threaten its extinction are reduced or no longer present (such as habitat destruction, poaching, etc.) such that it is no longer in danger of going towards extinction due to these pressures.

Answer 7

A species is no longer endangered when it is not "in immediate danger of extinction". Either the population(s) have recovered to the point at which the species can be moved to "threatened" status or the species has become extinct. Bear in mind that a species may be considered endangered in one place and not in another. There are international ratings (the "Red Book"), federal, and state listings. They need not be the same for a particular species. Sometimes even the federal regulations may apply to one population but not to another.

Answer 8

when it starts endangering other species! The wolves that were released into yellowstone protectively eventually started eating the cattle nearby as their (the wolves) numbers grew, of course cattle are not endangered, but if humans didn't care for the cattle, then they would probably be extinct already! Try looking for info on the Yellowstone National Park wolves.