Science news articles about 'species extinction rates'

... , according to the study. "When we apply our new mathematical model to species extinction rates, it shows that things are worse than we thought," said Melbourne. "By accounting for random ...

The scale of mankind's impact on the globe is becoming more and more apparent: We have achieved a species extinction rate to rival great extinction events of all geologic time as well as a rapidly ...

... loss, for example, the control variable is the species extinction rate, which is expressed in extinctions per million ... year. The current status is greater than 100 species per million lost per year, ...

... of tropical rainforest greater than the size of California has been converted mostly for food and fuel. Species extinction rates are at least 100 times those in pre-human times and are expected to ...