| Non-indigenous rainbow interbreeds and competes with native species, and brown trout are threatened as a result. |
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| The native species included ash, oak, maple, ash, hawthorn, poplar, crab apple and blackthorn. |
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| The greylag goose is a native species in Iceland, the United Kingdom, and Europe, and it also winters in the Mediterranean and southern Asia. |
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| A new hedge of native species such as blackthorn and whitethorn has been planted to screen the walk from the St George's Field car park. |
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| A bonus of the koala-friendly restrictions is that many other native species are flourishing also. |
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| A mixture of alder, cherry, oak and other native species has attracted red squirrels as well as roe deer, hares and kingfishers. |
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| The Sacramento perch was another native species similar to eastern relatives. |
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| Illegally introduced warm-water fishes flourished in the impoundment, presumably replacing the native species. |
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| At the same time some of the native species that were decimated by the Nile Perch, or were even thought extinct, were coming back. |
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| Local extinctions of native species may occur at the invading species' own trophic level or at different trophic levels. |
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| Invasives like mute swans and rock pigeons are wreaking ecological havoc throughout the United States and threatening countless native species. |
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| Not everything in the garden is rosy and some of our native species are having problems. |
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| The 80 species denoted by a double asterisk are native species included on the State list of rare, threatened or endangered plants of Maryland. |
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| Juniper is one of Britain's three native species of conifer and is evergreen with short spiny leaves. |
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| Once the exotic plants are removed, the land will be restored to coastal sage scrub for gnatcatchers and other native species. |
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| The money will be used to plant Korean pine, a native species that produces nuts eaten by tiger prey in the forests of the Russian Far East. |
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| We believe that self-sustaining populations of native species indicate a healthy or at least a recovering landscape. |
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| Many native species however, exhibit a characteristically wide range of ecological tolerances and their distributions reflect this. |
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| Botanical experts are urging green-fingered homeowners to help save endangered native species. |
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| When the native species is suppressed, the area becomes a monoculture of purple loosestrife. |
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| We are unswerving and unapologetic about our commitment to saving our native species. |
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| There are three native species of frogs and toads in the UK the common toad, common frog and natterjack toad. |
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| However, in hedgerows, aliens like fuchsia, buddleia and snowberry are pushing out native species like spindle and guelder rose. |
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| Overgrazing on upland pastures is causing the decline of native species including skylarks, curlews and dotterels. |
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| A total of 98 non-native species and 89 native species were observed in the fallow field habitat. |
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| However, some native species may be less drought tolerant than non-native species. |
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| Apart from their voracious appetite for native species, another worry is that they will burrow into riverbanks, adding to the problem of erosion. |
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| A well-planted aviary, especially with native species of trees or shrubs like acacia or eucalyptus, is ideal. |
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| From sea turtles to fringeless white orchids, native species are declining at alarming rates as their natural habitats are lost or degraded. |
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| She has already been instrumental in reviving the population of another critically endangered native species, the black stilt or kaki. |
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| The European carp and trout have driven many native species of fish from our streams. |
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| Thick carpets of the alien species are crowding out oysters and other native species on the seafloor. |
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| The two anadromous species from Atlantic waters, striped bass and shad, have been welcome additions, not destroyers of native species. |
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| Non-native, invasive plants often displace native species as they outcompete them for resources, such as space and light. |
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| The introduction of these exotic species, such as the pacu, can have detrimental effects for native species inhabiting South Carolina waters. |
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| When native and introduced species hybridize, the conservation of native species implies developing a plan for preventing such hybridization. |
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| But they also are charged with preserving native species within the boundaries of their parks and I guess they're pretty keen to look after purebred dingoes and not hybrids. |
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| Several native species have begun to colonize the now stabilized dune area including Sitka spruce, evergreen huckleberry, pearly everlasting, yarrow, and kinnikinnic. |
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| The crayfish is a vicious, red-clawed predator that has almost wiped out the smaller, gentler native species since introduced to Britain 35 years ago. |
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| However, due to the potential health and safety risk it was decided to remove the trees and replace with native species at a later date in the year. |
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| Staff shortages mean that resources are stretched to protect this native species, as well as the Philippine crocodile, the Calamian deer and the Palawan mouse deer. |
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| Melaleucas and bottlebrushes make excellent screening plants, stand-alone specimens and accents among other native species such as banksias and grevilleas. |
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| While in college, Manning, now 35, interned at a national park, where he noticed that kudzu and other nuisance plants were choking out native species. |
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| I will not mention all of them, but a lot of native species, eucalypts, wattles, and quite a number of exotic softwoods and hardwoods, are suitable. |
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| United States Population Facts and Figures focuses on the impact of population growth and land use on such native species as grizzlies and Florida panthers. |
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| Growers began to hybridize these native species with other varieties imported to Hawaii, which produced the huge kaleidoscope of colors and sizes available today. |
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| They identified live oak, sugarberry, and American elm as the most important native species, but with the invasive Chinese tallow tree also important. |
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| The Guardian reported that the mink are an American variety not native to Spain and officials were concerned that the mink might displace local native species. |
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| Droughts, floods, or early frost may have caused some or all of the introduced cultigens to fail but may have resulted in bumper yields of the more weedy native species. |
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| Since 1985 they have been replacing exotics with native species, although they have retained a waratah planted in the late sixties, as well as callunas and ericas. |
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| Biologists began to notice the rapid decline of the remaining native species in our forests and looked for solutions that would protect them from further decimation. |
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| Farmed fish regularly and in increasing numbers escape into the wild where they interbreed, spread diseases to native species and dilute the natural gene pool. |
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| Many native species migrate across the region, yet nobody can say for certain whether a 20m wide wildlife corridor is sufficient or inadequate for them. |
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| The aim was to spread awareness of the heritage of native species and about the need for conservation, as some of these species are endangered. |
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| This goal was realised in November 2016, when beavers were recognised as a British native species. |
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| Beach plums a small native species with fruits the size of a pinball, are sought after in summer to make into a jam. |
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| When a new species is introduced, the species could potentially breed with members of native species, producing hybrids. |
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| The effect of the creating of hybrids can range from having little effect, a negative effect, to having devastating effects on native species. |
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| In some cases the invasive species compete with the native species for food or prey on the natives. |
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| New species may also carry diseases to which the native species have no resistance. |
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| In 2016, beavers were recognised as a British native species, and will be protected under law. |
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| The island has a wide variety of trees, including native species of birch, beech, ash, hawthorn, elm, oak, yew, pine, cherry and apple. |
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| For example, Hampshire has a Tudor rose as its county flower, even though it is not a native species. |
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| They are now considered a major factor in the decline and extinction of many vulnerable and endangered native species. |
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| If one excludes the two recently introduced species, Hemidactylus robustus and Hemidactylus flaviviridis, all native species are endemic. |
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| There are various types of orchids native to the state along with a native species of cactus. |
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| The blue gum, as well as other species including the Harding grass, are much more flammable and better adapted to wildfires than native species. |
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| It focused on restoring the populations of two native species, the White-Faced Whistling Duck and the Bahama Pintail. |
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| The reserve is also important for the rare wild service tree, a native species from our largely lost ancient woods. |
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| Thirty years later, native species still have not been able to recolonize in the compressed soil. |
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| The Laysan duck is the only native species to date ever granted eligibility under this provision. |
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| Since then, they've been aggressive invaders, driving the Japanese royal bitterling to extinction and threatening other native species. |
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| At high light levels, eastern redbud and bladdernut were the only native species able to compete with buckthorn. |
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| The creatures are bigger, stronger, spinier and more powerful than native species. |
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| Grey squirrels outcompete the reds for resources and carry a squirrelpox disease that is fatal to the native species. |
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| The invasive plant outcompetes native species and erodes river banks, increasing the risk of flooding. |
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| Sessile oak is also known as Durmast oak and is a native species in most European countries and Anatolia. |
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| These box designs are proven to attract bluebirds and other native species, such as tree swallows and house wrens. |
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| The European starling is an aggressive, opportunistic cavity nester often out-competing native species and causing conflicts with humans. |
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| Zebra mussels are highly effective filter feeders that compete with native species and remove phytoplankton, a fundamental component of the freshwater food chain. |
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| Hubbs and Wauer hypothesized that Fundulus zebrinus, a nonnative species, was impacting native species in Tornillo Creek in the Trans-Pecos region. |
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| The import of the sweet water turtle Red-ear Slidder, for example, which threatens native species like the endangered caretta caretta turtle, would be prohibited. |
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| The non-native sea lamprey, also plaguing the Great Lakes, is a snakelike fish with a suction-cup mouth that attaches to native species and sucks their blood. |
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| Among the 58 native species of fish killed by the poisoning was the park's population of the smoky madtom, a rare catfish then known to exist only at Great Smoky Mountains. |
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| Additionally, the company hired a contractor to plant about 17,000 trees and shrubs that were native species, including sycamore, river birch, black willow, maple and oak. |
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| Tenders are invited for the treatment of invasive alien non native species, japanese knotweed along the national route n70 from tralee to kenmare, co. |
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| Studies have shown that the Welsh populations mostly predate freshwater crustaceans, though fears exist that this large anuran may also feed on the tadpoles of native species. |
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| Visitors will have the opportunity to hand-feed Forester kangaroos, visit koalas and see native species such as devils, quolls and wombats in the Bonorong Wildlife Park. |
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| Catch-22 proposes to take Asian carp, an invasive fish that has wreaked havoc with native species in the Mississippi River basin, and turn them into liquid organic fertilizer. |
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| Invasive species, such as the Australian blue gum tree, olive tree, sweet fennel and Harding grass threaten native species through competition for light, nutrients, and water. |
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| According to the NYSDEC Hudson River Estuary Program, about 220 species of fish, including 173 native species, currently are found in the Hudson River. |
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| The spread of humans and their large and increasing population has had a profound impact on large areas of the environment and millions of native species worldwide. |
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| In the southern United States, fruits of three native species are collectively known as mayhaws and are made into jellies which are considered a great delicacy. |
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| Although LBL's wildlife management activities focus on native species, the fallow herd is maintained for wildlife viewing and because of its historical significance. |
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| These in turn resulted in increased food resources for native species of fish with insignificant alteration of the macroinvertebrate community structure and trophic pathways. |
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| Despite the enormous number of disulfide combinations possible, LDLR oxidative folding leads to a single native species with 30 unique intradomain disulfides. |
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