Arctic Populations are Changing | Blog-ConnectionZen

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Arctic Populations are Changing

Écrit par Richard

Mercredi, 26 Mai 2010 04:22

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High-Arctic populations are being effected by climate change

The population of animals in the arctic has been recorded over a 34 year period. Some have increased and some have diminished. While it’s not clear yet the impact of climate change, there are some indications that warming may be effecting arctic populations.

Commissioned by scientists from 8 arctic countries, the Arctic Species Trends Index (ASTI) has used data on arctic populations from 1970 to 2004 to see how they adapt over time.

The key findings are:

High-arctic populations have diminished by 26%. While there is a natural population cycle, synronization of changes between different herds suggests an environmental factor.

Fish and geese populations are increasing. This is partly to do with a decrease in fishing,hunting and harvesting. For the fish, this is also to do with the warmer water temperatures.

Changes reported in the index clearly point to a movement in the balance of life in the arctic, a balance that is probably being effected by climate change.

For more information, consult the key findings of the ASTI.

There is also a video available with an overview of the ASTI project: