World wildlife populations declined in 40 years

The global loss of species is not goot it worse than previously thought, the London Zoological Society (ZSL) says in its new Living Planet Index.

According to report populations have halved in 40 years, as new methodology gives more alerting alarming results than two years old report.

The report says  populations of mammals, birds, reptiles, amphibians and fish fall by an average of 52%.
Aquatic spacies fall of 76%.

The Living Planet Index tracks more than 10,000 vertebrate species populations from 1970 to 2010
The team at the zoological society say they've improved their methodology since their last report two years ago - but the results are even more alerting.

Thdy found that wildlife was down "only" around 30%. Now  it seems clear that wildlife is continuing to be driven out by human activity.

Humans are busy in cutting down trees more quickly for their extra use than they can re-grow, harvesting more fish than the oceans can re-stock, pumping water from rivers and aquifers faster than rainfall can replenish them, and emitting more carbon than oceans and forests can absorb.

In Ghana, the lion population fall to 90% in 40 years.In West Africa, forest felling has restricted forest elephants to 6-7% of their historic range.

In Nepal, habitat loss and hunting have reduced tigers from 100,000 a century ago to just 3,000.

In the UK, bird numbers continue to fall.
The index tracks more than 10,000 vertebrate species populations from 1970 to 2010. So its clear continuesly decline of these populations.

   The biggest recorded threat to biodiversity comes from the combined impacts of habitat loss and degradation, driven by what WWF calls unsustainable human consumption.

The result of climate change put effects on areon species.
WWF is keen to avoid despair. It making its efforts to save species like:
1. In Rwanda (A Gorilla Conservation Programme ) providing gorilla tourism

2. A scheme to incentivise small-scale farmers to move away from slash and burn agriculture in Acre, Brazil

3.  wildlife-rich River Itchen in the UK.

As compare to old method new weighted methodology analyses the data to provide what ZSL says is a much more accurate calculation of the collective status of populations in all species and regions.

After Applying the new method to the 2008 dataset researcher find that things were considerably worse than what we thought at the time. It is clear that we do something to save wildlife and preventing a significant declining species populations.