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Grim News for Mammals and Birds as Human Population Grows

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Posted in Science on 20th Jun, 2013 02:28 AM by AlexMuller

The ongoing global growth in the human population will inevitably crowd out mammals and birds and has the potential to threaten hundreds of species with extinction within 40 years, new research shows.

 

Scientists at The Ohio State University have determined that the average growing nation should expect at least 3.3 percent more threatened species in the next decade and an increase of 10.8 percent species threatened with extinction by 2050.

 

The United States ranks sixth in the world in the number of new species expected to be threatened by 2050, the research showed.

 

Though previous research has suggested a strong relationship between human population density and the number of threatened mammal and bird species at a given point in time, this study is the first to link an expanding human population to fresh threats of extinction for these other species.

 

The lead researcher created a model based on 2000 data to forecast future threatened species connected to human population growth projections, and published the predictions in 2004. In this new study, that model’s predictions were confirmed by 2010 actual figures. The scientists then used the same model, containing data on 114 countries, to extend their predictions to the middle of this century.



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