Humans are at risk because the animals decline too limited

Scientists warn that biodiversity in the world is no longer within the "safety limit" so it is likely to threaten human existence.

Plant and animal species are falling so rapidly that losing biodiversity in the world is no longer within the "safety limit". This may threaten the planet's ability to support humans, according to a large study published in the prestigious Science journal Science.

The team includes experts from the World Conservation Monitoring Center in Cambridge of the United Nations Environment Program, British Natural History Museum, Danish Natural History Museum, and Research Organization. Commonwealth science and technology in Australia.

They analyzed nearly 2.4 million records on more than 39,000 species at 18,600 different locations around the world. The team found that 58.1% of the Earth's surface loss of biodiversity is serious enough to ask the question of the ability to sustain the lives of billions of people living on it.

Species decline rate across the planet is at a safe level - (Photo: Independent).

One of the researchers, Dr. Tim Newbold from University College London, said: "This is the first time we quantified the impact of losing biodiversity in the global environment in detail. We see that on most of the world's loss of biodiversity, it is no longer within the safety limits as standards of ecologists make. "

"We know the loss of biodiversity affects the function of the ecosystem, but how this is not completely clear. What we know is that in many parts of the world the situation occurs. human intervention is needed to maintain the function of the ecosystem, ' he added.

"Safety limit" is said to be a 10% reduction in species abundance compared to the original amount before humans occupy the ground. However, this definition is controversial because some researchers believe that the 70% reduction rate is still in the safe zone. Even so, the researchers found that species abundance dropped to 88% once there were new species in the system.

Experts warn that there is an alarming trend of extinction on Earth. Grasslands, steppes and shrubs are the worst affected areas, followed by dense forests.

If people want to survive and live well on Earth, they must intervene to improve global ecological diversity - (Photo: Alamy).

"The biggest changes - happened in most places where people live - can affect physical and psychological. To solve this, we will have to preserve the rest of the carpet. Natural plants and restored human land used, " Dr. Newbold said.

Professor Andy Purvis, of London's Museum of Natural History, who also participated in the study, expressed concern over the findings. Professor said: "Decision makers worry a lot about the economic downturn, but an ecological degradation can have even worse consequences . Until and only when we have can bring biodiversity rates up again, otherwise we are gambling with ecology ".

They believe that only reversing the loss of biodiversity will benefit the reproductive system and ensure human life.

Scientists are also considering redefining the current geological age, considering it the Anthropocene Era (era of human / human life). The reason people have caused a huge impact on the Earth, including things that make people fear that it will cause a sixth mass extinction in planetary history.