Populations recovered and stabilized, so the species was removed from the U. S. federal government's list of endangered species and transferred to the list of threatened species on July 12, 1995, and it was removed from the List of Endangered and Threatened Wildlife in the Lower 48 States on June 28, 2007.

Populations and species migration, for example, are sensitive indicators of ecosystem services that sustain and contribute natural capital toward the well-being of humanity.

" Populations that are physiologically capable of interbreeding, but morphologically or genetically divergent and isolated by geography or ecology, are sometimes considered to be separate species.

Populations of several parrot species were described mainly in the unscientific writings of early travelers, and subsequently scientifically described by several naturalists ( to have their names linked to the species that they were proposing ) mainly in the twentieth century, with no more evidence than the earlier observations and without specimens.

Populations that have a steady, substantial gene flow among them are likely to represent a monotypic species even when a fair degree of genetic variation is obvious.

Populations appear to be stable, so the species is considered of Least Concern.

Populations can be dense and territories can shift quickly, especially for species of the extreme shallows ( a few centimetres of water ).

Populations have seen significant increases since the protection programs began, but the species remains in serious danger.

Populations of feral animals present good sources for studies of population dynamics, and especially of ecology and behavior ( ethology ) in a wild state of species known mainly in a domestic state.

Populations appear to remain stable and it has not reached the threshold of inclusion as a threatened species, which requires a decline of more than 30 percent in ten years or three generations.

Populations from the Pacific Coast of the United States are genetically distinct from those of G. sabrinus found elsewhere in North America, although they are considered to belong to the same species.

Populations of the Blue-headed Vireo have been steadily increasing since the 1970s and has therefore been classified as a " Least Concern " species in 2004.

Populations in the southwest Pacific, formerly included in C. vittatus, are actually a separate species, C. francisi.

Populations are also found in Madagascar, but it is doubtful if this within the native range of the species.

Populations in cold continental climates mostly have one clutch per year, forming species A, whereas those in warmer climates have two clutches per year, forming species B. European earwigs are most commonly found in temperate climates, since they were originally discovered in the Palearctic region, and are most active when the daily temperature has minimal fluctuation.

Populations have also been introduced outside of the former range of the species to Kenya, Uganda and Zambia.

Populations and genomic resources for genetic biodiversity maintenance in parts of its native range are threatened by overharvesting due to poor or absent conservation planning and by the species ' low germination rates.

Populations can be considered any plant or animal species, human genders, followers of a certain religion, people of different nationalities, stone types, ethnic groups, etc.

Populations of the same species from different latitudes may also follow Allen's rule.

Populations have declined considerably since European settlement, mainly as a result of widespread habitat destruction and predation by mammalian invasive species.

Populations have also been growing just east of the Cascades in central Washington around the city of Yakima and the Tri-Cities area.

Students have created areas of concentration ranging from " 20th Century American Literature " and " Adaptive Physical Education for Vulnerable Populations ," to " World Politics and Social Change " and " Zoological Photography.

Populations have also been artificially introduced in some parts of the world, most notably the Americas and Australasia, principally for hunting.

Populations of feral guinea pigs have been established and then eradicated.

Populations of the bird that have been on the decline since the late 19th century has started to stabilise.

Populations in westernmost Scotland are genetically distinct from those in the rest of Scotland and northern Europe, but not sufficiently to have been distinguished as a separate botanical variety.

Populations of choughs are stable or increasing in areas where traditional pastoral or other low intensity agriculture persists, but are declining or have become locally extinct where intensive farming methods have been introduced, such as Brittany, England, south-west Portugal and mainland Scotland.

Populations have risen spectacularly over the last 50 years, due largely to increased protection from shooting on the wintering grounds.

Populations have dwelled in Chiang Rai since the 7th century and it became the center of the Lanna Thai Kingdom during the 13th century.

Populations have disappeared from natural breeding areas such as the Macquarie Marshes in northwestern New South Wales.

All seven sites are in modern-day Turkey and no longer have significant Christian populations because the majority of the Greek population had been deported under the Convention Concerning the Exchange of Greek and Turkish Populations signed by Greece and Turkey.

Populations of migratory birds in the area have steadily declined since the 1960s.

Populations have fluctuated widely.

Populations have also been documented in Thailand.

Populations have been hunted off the coast of Peru for use as food and shark bait.

Populations of rookery sites in California have increased during the past century.

Populations have declined seriously in the south and west of its range, but it remains locally common in northern New South Wales and southern Queensland.

Populations of the Western Gray Squirrel have not recovered from past reductions.

Populations on the island of Reunion have also diversified within thirty years according to their food resources with visible variations in bill morphology.

Populations in northern towns ( excluding capital cities ) declined an average of 24 percent.

Populations of the desert bighorn sheep declined drastically with European colonization of the American Southwest beginning in the 16th century.

Populations have declined mostly due to overcollecting for food and the pet trade.