Related to a post I made last week about why invasive species are so harmful, the UN Convention on Biodiveristy released a report today confirms my secret & heretofore unvoiced belief that yes, HUMANS are the most dangerous invasive species!
Humans are responsible for the worst spate of extinctions since the dinosaurs and must make unprecedented extra efforts to reach a goal of slowing losses by 2010…
According to Reuters:
“In effect, we are currently responsible for the sixth major extinction event in the history of earth, and the greatest since the dinosaurs disappeared, 65 million years ago,” said the 92-page Global Biodiversity Outlook 2 report.
Apart from the disappearance of the dinosaurs, the other “Big Five” extinctions were about 205, 250, 375 and 440 million years ago. Scientists suspect that asteroid strikes, volcanic eruptions or sudden climate shifts may explain the five.
According to a “Red List” compiled by the World Conservation Union, 844 animals and plants are known to have gone extinct in the last 500 years, ranging from the dodo to the Golden Toad in Costa Rica. It says the figures are probably a big underestimate.
“The direct causes of biodiversity loss — habitat change, over-exploitation, the introduction of invasive alien species, nutrient loading and climate change — show no sign of abating,” the report said.
And here I am complaining about the possiblity of ripping the ivy off my house!