The Mesozoic Era of the Phanerozoic Eon: 251 to 65.5 million years ago. (Picture from: http://palaeos.com/) |
Currently there are no animals that could be compared with the giant beasts.
The researchers found that the methane gas produced by all sauropods in the world will reach 520 million tons per year. The amount is equivalent to the total methane produced by human activities and natural now.
Brachiosaurus. (Picture from: http://www.britannica.com/) |
Apatosaurus (formerly Brontosaurus). (Picture from: http://www.britannica.com/) |
Currently, there is no way to know what type of bacteria that live in the digestive system of the dinosaurs, what gases are produced, or how the digestive system of the dinosaurs. But Wilkinson expect them to produce methane as the animals living today.
"To process so many plants, they must rely on microbes in their digestive system," says Wilkinson, "but we're not sure,"
The scientists had to use mathematical models to determine how much gas is produced giant animal digestive processes. They process data of methane production of modern mammals are enlarged up to the size of the sauropods.
In their calculations, the researchers assumed 10 sauropods, each weighing 20 thousand pounds or 9.071 kilograms, hanging on a land area of thick Mesozoic habitat of one square kilometer. "We take the middle value," says Wilkinson, "we tried quite conservative."
They found that 10 sauropods would donate 7.6 tonnes of methane every year. By shifting the numbers to cover the land area is estimated to be the habitat of dinosaurs, the researchers scored more than 550 million tons of methane are produced each year. *** [LIVESCIENCE | KORAN TEMPO 3875]