State of the rainforest 2014 - page 10

STATE OF THE RAINFOREST 2014
10
The biodiversity of the tropical rainforests is amazing. More than
half of the 1.4 million species currently identified in the world are
living in these ecosystems. And still, scientists are sure that the
total number of different plants and animals is far more, probably
5–10 million.
Every year, botanists describe and classify about 2,000 new plant
species. More than 1,000 species of orchids have so far been
collected in the Malaysian state of Sarawak in Borneo. But even
in Borneo, where the rainforests are relatively well-studied, just
Modern rainforests pose riddle upon riddle: where do all
these species come from, and how did they end up here?
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somewhere between 15%and 35%of the existing species have been
described by scientists. 17 different palm species were registered in
Brunei in 1988 – only seven years later, the figure had risen to 140.
As the most diverse ecosystem on earth, the tropical rainforest is
brimming with unknown mysteries.
Since 2010, 441 new animal and plant species have been
discovered in the Amazon,
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among them a growling monkey and
an endangered poison dart frog in the rainforests of Guyana. In
New Guinea, researchers are constantly discovering new species;
more than 1000 in recent years. This includes over 100 orchids, 134
amphibians, 71 different fish (including a 2 meter long river shark)
and 12 mammals.
Rainforest biodiversity – treasure
under threat
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