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Populations are primarily declining due to habitat being lost to development, especially in coastal swamp thickets and woodland edges in the east and riparian habitats in migration and winter in the Southeastern United States and Mexico.
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Populations and are
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 in the Oswego River are being actively managed for recovery.
" 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 in southwest and central Asia are small and fragmented ; in the northeast, they are critically endangered.
Populations living near airports or freeways are exposed to levels of noise typically in the 65 to 75 dB ( A ) range.
Populations of brine shrimp are mostly restricted to the lake's south arm.
Populations are extremely susceptible to overfishing.
Populations are also generally found in deeper water if wave action is present.
Populations are listed in parentheses.
Populations listed below are from the 2010 United States census data.
Populations of municipalities as of 2006 are listed in the table below:
Populations are from 2002.
Populations are.
Populations here included in caribou are sometimes divided into four separate subspecies ( see text )
Populations of feral Red-Masked Parakeets are a local sightseeing event here.
Populations of Amazon parrots that lived on the Caribbean islands of Martinique and Guadeloupe are now extinct.
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 are sedentary in the south and west of the range, although northern birds migrate south as far as northern Africa and tropical Asia in winter.
Populations are resident.
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 are resident.
Populations of this species have declined in the 20th century and some island populations are endangered by hunting, accidental poisoning, and collision with power lines.
Populations are continuous from the British Isles eastward across Europe and Asia to the Bering Strait.
Populations and primarily
Populations north of southern New England through northern Indiana and Illinois to southern Iowa are primarily summer residents.
Populations and declining
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 in the Caspian Sea region, Afghanistan, and Pakistan, are declining, and increasingly isolated.
Populations on the southern fringes of the breeding range in Europe are however declining with local extinction in some areas ( notably in parts of England and Germany ), mainly due to field drainage and agricultural intensification.
Populations and due
Populations have risen spectacularly over the last 50 years, due largely to increased protection from shooting on the wintering grounds.
Populations have decreased dramatically due to illegal trapping for the cage-bird trade.
Populations of deer around the Great Lakes have also expanded their range northwards, due to conversion of land to agricultural uses favoring more deciduous vegetation, and local caribou and moose populations.
Populations of C. xanthosternos are restricted to the Atlantic forest of south-eastern Bahia, Brazil, due possibly to high degrees of interference from man.
Populations of Pygmy Cormorant in Romania have a dramatically decline especially in 60 ’ when due to the communist agricultural policies The Great Brăila Island and important parts of Ialomiţa Pond were drained in order to practice agriculture, so this the habitats of a great number of aquatic birds were destroyed.
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 have declined mostly due to overcollecting for food and the pet trade.
Populations and habitat
Populations in areas with high sheep and rabbit numbers may decline, as these animals compact the soil and reduce the available habitat for mice.
Populations of ancestral " peregrinoid " falcons living in marginal habitat at the fringe of the African-Middle Eastern desert belt either adapted ( and might have become isolated e. g. in the Persian Gulf region, which turned into semiarid habitat surrounded by vast deserts ), or left for better habitat, or became extinct.
Populations differ in their phenotypic plasticity, which is the ability of an organism with a given genotype to change its phenotype in response to changes in its habitat, or to move to a different habitat.
Populations have declined considerably since European settlement, mainly as a result of widespread habitat destruction and predation by mammalian invasive species.
Populations in southeastern Australia are threatened by reduction in forest cover and other habitat alterations.
Populations and being
Populations are being adversely affected by the West Nile virus, particularly in California's Central Valley.
Populations raised in captivity with the intent of being reintroduced in the wild suffer from adaptations to captivity.
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