Understand the criteria that lead to an animal being declared extinct; The species that inspired the creation of the Woodpecker character disappeared | temper nature

NS Follow the thread Act g 1 Everton researcher and biologist Miranda gave an interview about the disappearance of some animals. Among the extinct species is the ivory-billed woodpecker, which was the inspiration for the character in the cartoon Pica-Pau. (Watch the full program in the video above)

“Extinction is a natural process that occurs in nature usually at very low rates. We call background rates rates of extinction, which is the natural rate of species loss. What humans are doing — the process of destroying, destroying, and removing the planet’s natural vegetation to produce meat and vegetables — is accelerating this,” Miranda said. the average.

Here are the guidelines analyzed by the IUCN for the classification of species:

• how much the population has decreased over three generations or what is the expected decrease in population over the next three generations;
• Presence and size of the area it occupies;
• The size of the population of mature individuals (ready for breeding);
• Quantitative analyzes showing the possibility of extinction in nature in the next three generations.

Moreover, according to the IUCN, the species can be classified into eight categories:

1. extinct;
2. extinct in nature
3. Endangered
4. in danger;
5. Exhibition;
6. almost threatened
7. less worrisome and
8. lack of data.

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