Translation of "Eingeschleppte arten" in English

Invasive species are also causing problems on the eastern coast of North America.

Accidental introductions, such as the sailfin armored catfish (Pterygoplichthys multiradiatus), are mainly attributed to the release of aquarium fish.

The island was chosen in 2004 to be one of New Zealand's offshore reserves, which are cleared of introduced species to protect native species.

Alien invasive species and certain GMOs may also affect biodiversity in the wider environment and therefore these issues are also addressed in the Action Plan.

But while many introduced species bring considerable benefits to local economies, others upset the ecological balance and proliferate in ways that are highly destructive to the environment and to economic and human interests.

Our ecosystems are also expected to become more vulnerable to introduced species that can adapt to new climate regimes.

Cases of newly imported species displacing native species have been documented in 78 per cent of the 232 coastal ecoregions of the world.

Between 1900 and 2000, more than 150 introduced species were discovered in the North Sea, including various dinoflagellates, Japanese sargassum, American piddocks, American razor shells, Pacific oysters and the worm Marenzelleria.

Harmful pests are on the increase, and species and diseases from tropical and subtropical zones could get a foothold in Switzerland, points out Pierluigi Calanca of Agroscope, the federal institute for research into agriculture.

Sometimes introduced species can also act as stressors – as predators, pathogenic agents, or feeding competitors.

Because of rapid changes in water temperature, salinity and nutrient concentrations, and due to overfishing, habitat destruction and the introduction of foreign species, global biological diversity in the oceans is rapidly declining.

Which ecosystem functions the marine communities perform in the future, whether the existing communities perform them better or worse, whether functions performed in the past completely disappear or just shift seasonally or spatially, all of this depends on whether the ecological functions of a disappearing species can be taken over by the species present or those newly introduced.

River ecosystems are exposed to many other stress factors as well, often at the same time, such as e.g. structural changes, oxygen deficiency as a result of overfertilisation and accidentally imported species.

There, the encroaching species are often considered to be a threat to marine biodiversity, although so far not a single case is known in which a species introduced from outside has caused the extinction of native organisms.

They are endangered primarily by non-native species, such as rats and goats, and human encroachment on their habitat.

Threats to the above-mentioned forest functions are mounting as a result of the worldwide upheavals in the climate system and in society: what impact do climate change, loss of biodiversity, invasive species and productivity levels in timber production have on our forests?

It could also reduce the vulnerability of forests to new invasive species and pests.

Another man-induced threat is invasive alien species.

Some places, like San Francisco Bay, are now dominated by non-native species.

On sunny hills grow in great quantities Ugni molinae, a species introduced from the mainland.

We focus on the effects of invasive species establishing new interactions and comparative ecosystem research.

Since 2009 she is involved in a rapid assessment survey of introduced marine species (neobiota) in German coastal waters at Alfred-Wegener-Institute.

The New Zealand Department of Conservation is engaged in a project to eradicate pests from the island, in order to help protect native species found on the island.

This analysis results in seven priorities for actions: (a) ensuring a reasoned intensification in agricultural practices, (b) maintaining an economically viable and socially acceptable agricultural activity, in particular in biodiversity-rich areas, where these activities have been weakened, (c) using the potential of agri-environmental measures for the conservation and sustainable use of biodiversity, (d) ensuring the existence of an ecological infrastructure at the level of the whole territory, (e) supporting actions aimed at the enhancement of genetic diversity in agriculture and at the maintenance of local and traditional varieties and breeds, (f) encouraging the marketing of landraces and varieties that are naturally adapted to the local and regional conditions, (g) preventing the abundance and spreading of non-native species.

The identification and assessment of pathways and vectors of spreading of non-indigenous species as a result of human activities is a prerequisite to prevent that such species introduced as a result of human activities reach levels that adversely affect the ecosystems and to mitigate any impacts.

It is also important to address emerging issues such as the spread of endocrine disrupting and persistent organic chemicals and the proliferation of alien invasive species, as well as assessing and monitoring relevant effects of the introduction of specific GMOs.

However, many of these species have become endangered as a result of the invasion of an introduced species, Cape fig or ‘Carpobrotus’ (Carpobrotus edulis), and the expansion of tourism.

To safeguard diversity today, action is needed to combat endocrinedisrupting and persistent organic pollutants, the proliferation of alien invasive species, and to assess the effects of introducing specific GMOs.

This information will help us better understand the influence of climate change and human activities on changes in distribution patterns and the presence of introduced or invasive species.

There has been much speculation about the reason for this species' extinction on Menorca – in particular, the introduced species Podarcis siculus and Macroprotodon cucullatus were suspected.

According to a report issued in 2008, new species have already been introduced by humans to at least 84 per cent of these 232 ecoregions.

On the concrete in Naissaare harbour this summer a grass snake was busy trying to swallow a round goby (Neogobius melanostomus), an invasive species that was first noted in Estonia 16 years ago, by now occurring abundantly in Estonian waters.

If, for instance, the imported species closely resembles a native species, genetic analyses are often necessary to tell them apart.