When is a species considered to be endangered?
A species is endangered when…
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Its
population is low or dropped sharply in the last few years.
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the
living space is no longer suitable for the species because of size or condition
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condition
had deteriorated or the size became smaller
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Due
to the low reproductive rate losses could not be compensated anymore.
Why the species become extinct
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Farming: pesticides destroy species and
fertilizers change the ground, fields are built where previously were habitants
for many species
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Climate change: Species cannot adjust to the steady
temperature increase are no longer comparative will be displaced by other
species. The same effect is also in the sea, acid rain become to a problem of
complex eco-systems.
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Humans, who behave disrespectful towards the nature and
hunt lions for example, pick rare plants and do not care about nature reserves
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Introduced species: animals or plants are introduced
from foreign countries through the increasing globalization by sea or flight
path. They replace the native species, an example is the Asian
Harlequin-ladybug (right picture), who prevailed against the native one´s.
Red List
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list
of endangered, missing or extinct animal and plant species
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significant
decision support, natural reserve´s “fever thermometer”
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is
elaborated every 10 years all around the world
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currently
207 of the 478 native species (43 per cent) are classified as endangered
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32
German species are already missing
What can we do against the loss of species?
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Fighting
the causes of hazards
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Care
and maintenance of existing reserves
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Despite
strict lawfully protection species such as field hamsters, ruffians and
lapwings will disappear if nature conservation is not consequently defended.
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Land
owners must be involved and supported in this mission, and agriculture in
particular must confess its responsibility for the plants and animals living in
the cultural landscape.
Eric T.
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