According to Mylonas, extinction of autochthonous species caused by the introduced species is unusual in terrestrial mollusks. |
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That's counting the birds like starlings, rock doves and house sparrows, introduced species most birders don't even count! |
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Bermuda extends 21 square miles, and much of it is covered by introduced species like the casuarinas tree, an import from Australia. |
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It has been reported to attack the fruits of various native and introduced species of plants, but especially guavas and other myrtaceous fruits. |
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Well, introduced species have devastated species such as bilbies on the land, and we believe that the same sort of thing is happening in the sea. |
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Effective defense against newly encountered predatory species is clearly one factor that could facilitate establishment of an introduced species. |
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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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Further, the dense vegetation and extensive root systems of intact scrub appear to limit invasion by most weedy native or introduced species. |
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During naturalization, the introduced species and biotic components of the habitat begin adapting to each other. |
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He also noted that disease and competition from introduced species are also threats. |
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These introduced species also have harmful impacts on our aquatic ecosystems. |
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Bait bucket water may also carry microscopic introduced species such as spiny water flea, fish hook flea, and zebra mussels. |
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If we wait until an introduced species is clearly invasive, it is then too late to do anything about it. |
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For example it is recommended to include rats and cats explicitly, as introduced species into point 2.5.3 of the Action Plan. |
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Some introduced species can also bring about major socio-economic impacts requiring control and cleanup measures. |
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Hunting is encouraged to control red deer and wapiti, both also introduced species. |
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The Yukon also has 16 introduced species of borages, a group of agricultural weeds that includes stickseeds and forget-me-nots, and 14 introduced species of mustards. |
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The introduced species or translocated, escaped or dispersed, spreads beyond the intended area of introduction. |
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Hybrids, introduced species, and taxonomically dubious species, subspecies and varieties have not been included. |
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Determination of the impact of introduced species on pollination of native or crop plants. |
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The best guide to tree adaptability for your area are the native and introduced species that are successfully growing there already. |
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The introduced species are mainly pests of ornamentals, woody plants and citrus. |
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The introduced species can outcompete native fish, sometimes feed on them, and in some cases hybridize with them. |
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So, the proportion of introduced species in a community only indicates a potential, and in no way does it indicate vulnerability. |
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Inedible introduced species stir up the river bed and cause further deterioration of the water quality. |
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Together with the introduced species of chaffinch, goldfinch, yellowhammer, skylark, magpie, etc, they provide a tuneful accompaniment to your walk. |
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There are also regulations concerning the discharge of bilge water which should reduce the risk of introduced species. |
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The biggest threat to the young ones were rabbits, yet another introduced species. |
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Hume realized that, against his usual instincts, he was lamenting the site's lack of introduced species. |
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Also, many native plants are being stressed or extinguished by invasive or introduced species such as bittersweet vine, Russian olive, and English ivy. |
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This is a perfect example of 'invasional meltdown' where two introduced species interact to cause declines in a native species. |
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Finally, an introduced species may unintentionally injure a species that depends on the species it replaces. |
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Additionally, Britain has a number of introduced species which have become naturalized in their new environments. |
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The farthest west it can be found is Ireland, where it has long been thought, erroneously, to be an entirely introduced species. |
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It is one of the few introduced species that can successfully invade and colonize a virgin forest. |
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Another threat to albatrosses is introduced species, such as rats or feral cats, which directly attack albatrosses or their chicks and eggs. |
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The treaty requires these countries to take specific actions to reduce bycatch, pollution and to remove introduced species from nesting islands. |
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The combination of human exploitation and introduced species significantly reduced the dodo population. |
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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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Another introduced species, cheatgrass, was an invasive grass through much of the study area. |
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The remaining Socotra fauna is greatly threatened by goats and other introduced species. |
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A number of such introduced species have become invasive and threaten native ecosystems. |
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They are home to large bird populations, although many no longer breed on the main islands because of competition from introduced species. |
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The Lake is no longer home for the Lake smelt, catfish and some introduced species such as the whitefish and pikeperch. |
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Status reports are compiled biannually for all AEWA range states where the presence of this introduced species from North America has been recorded. |
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It has been theorised Furcellaria was an introduced species in the ballast water of sailing ships from Europe and slowly spread in the Gulf region over 100 plus years. |
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The impact of introduced species already in the system, from the sea lamprey to the zebra mussel, serve as harbingers of the economic and environmental costs to come if this crucial threat is not controlled. |
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A number of these accidentally brought-in or deliberately introduced species can turn into problems suddenly since they reproduce too prolifically, thereby becoming invasive. |
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Many people are familiar with the cases of the House sparrow and the European starling, introduced species which are now integrated with the local fauna. |
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Second, there are many introduced species here. |
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White cattle egrets, another introduced species, fly overhead. |
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And introduced species such as snakes or rats. |
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But a horse pulls at the heartstrings like no other introduced species. |
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Methodologies include direct and indirect impacts on biodiversity such as habitat loss and fragmentation, introduced species, pollution of soil, water and atmosphere and global climate change. |
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Twenty-five of these taxa are recognized or presumed hybrids, two are introduced species, and one has not been confirmed with a supporting specimen. |
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The ecosystems within the ACCOBAMS region are highly changed and disturbed, primarily due to pollution, coastal development, extensive vessel traffic, over-fishing and the impacts of introduced species. |
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Introductions of alien invasive species urgently require the development of better science and technology to identify and treat pathways to the lakes, such as ballast water, and to manage undesirable introduced species. |
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This is primarily due to extensive pollution, coastal development, disturbance caused by extensive vessel traffic, over-fishing and the impacts of introduced species. |
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Insects that become pests can be native or introduced species. |
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In some cases, the introduced species can disturb the environment so much that it becomes unsuitable for particular fish. |
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The removal of these introduced species has led to increases in numbers of species under pressure and even the return of extirpated ones. |
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It has become an introduced species in North America, Australia, Europe, and New Zealand. |
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Some have a negative effect on a local ecosystem, while other introduced species may have no negative effect or only minor impact. |
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The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others. |
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Examples of these terms are acclimatized, adventive, naturalized, and immigrant species but those terms refer to a subset of introduced species. |
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Subsequent range expansion of introduced species may or may not involve human activity. |
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Yet another prominent example of an introduced species that became invasive is the European rabbit in Australia. |
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Most accidentally or intentionally introduced species do not become invasive as the ones mentioned above. |
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However the small percentage of introduced species that become invasive can produce profound ecological changes. |
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Many introduced species require continued human intervention to survive in the new environment. |
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Not all introduced species are invasive, nor all invasive species deliberately introduced. |
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The presence and gradual spread of another introduced species, the tiny Asian muntjac deer, also showed up. |
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Bear in mind that most introduced species do not become invasive. |
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Companies such as Monsanto that earn much of their profit through the selling of genetically modified seeds has added to the controversy surrounding introduced species. |
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Invasive species are those introduced species that spreadwidely or quickly and cause harm, be that to the environment, human health, other valued resources or the economy. |
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Endemic land animals have been the most affected by introduced species. |
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Disturbance by humans, dogs and vehicles, predation by introduced species and inappropriate water level management in South Australia are the main reasons for its decline. |
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Another cause of disturbance is when an area may be overwhelmed by an invasive introduced species which is not kept under control by natural enemies in its new habitat. |
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The prickly pear cactus is an introduced species in Australia. |
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Australia has six introduced species of deer that have established sustainable wild populations from acclimatisation society releases in the 19th century. |
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The declining populations of the fish are thought to be due to introduced species that utilise the native vendace as a food source, and also due to pollution. |
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