Fortunately, they have survived on farms and ranches and are no longer endangered.Species that live only on islands can also be easily hunted to extinction.Many others were lost in the 19th century when the dense Mauritian forests were converted into tea and sugar plantations.Tags: Phd Thesis Or DissertationParalegal Business Plan SamplePhoto Essay DefinitionDescribe Diction EssayPh D Thesis In Computer ScienceThe Dissertation
Many of the ships that came to Mauritius also had uninvited rats aboard, some of which escaped onto the island.
Before humans and other mammals arrived the dodo bird had little to fear from predators.
There were no mammals on the island and a high diversity of bird species lived in the dense forests.
In 1505, the Portuguese became the first humans to set foot on Mauritius.
Recently a scientist noticed that a certain species of tree was becoming quite rare on Mauritius.
In fact, he noticed that all 13 of the remaining trees of this species were about 300 years old. Since the average life span of this tree was about 300 years, the last members of the species were extremely old.
Hunting Many species have been hunted to extinction or to the point where they are critically endangered. There were millions of bison in the Great Plains of North America until the arrival of the Europeans.
Hunting was so intense that only a few hundred were left by the time the animals became protected.
Although the dodo bird became extinct in 1681, its story is not over.
We are just beginning to understand the effects of its extinction on the ecosystem.