As countries’ human life expectancy grows, so do their numbers of endangered species, according to a new study by University of California, Davis researchers. The researchers examined social, economic and ecological information for 100 countries to determine which factors are most strongly linked to endangered birds and mammals. Human life expectancy is rarely included in such studies but turned out to be the best predictor of endangerment in these countries, according to the study published in Ecology and Society. “Increased life expectancy means that people live longer and affect the planet longer; each year is another year of carbon footprint, ecological footprint, use of natural resources, etc. The magnitude of this impact is increased as more people live longer,” the authors wrote.
(Disponível em: http://www.scientificamerican.com/article.cfm?id=as-people-live-longer-threats-to-wildlife-increase. Acesso em: 17 dez. 2013)
Segundo o estudo feito pela Universidade da Califórnia, ameaças a espécies da vida animal crescem na medida em que aumenta o(a)
